Subject: ECOLOG-L Digest - 8 Mar 2001 to 9 Mar 2001
To: Recipients of ECOLOG-L digests <ECOLOG-L@UMDD.UMD.EDU>
Status: R
There are 23 messages totalling 1979 lines in this issue.
Topics of the day:
1. Alternative for the term Relative abundance (2)
2. summer field botanists needed -- US Forest Service
3. Nabokov's butterfly (4)
4. New pollution tool (4)
5. North Carolina Mussel Atlas
6. climate change and diseases of terrestrial vertebrates
7. Job: RA needed for research on livestock grazing effects. CO
8. Should the public have access to research data?
9. Radio Tracking
10. Graduate Research Assistantship in Forest Modeling
11. Summer Field Technician Positions
12. Asst./Assoc. Professor Opportunity -- Biogeochemistry
13. ENVIRONMENTALIST IAN McHARG DIES AT 80
14. NASA image collection
15. NCSE Leads Effort to Advance Environmental Science Spending
16. index of productivity
----------------------------------------------------------------------
Date: Fri, 9 Mar 2001 00:38:18 -0800
From: Robert Taylor <rtaylor@GEOG.UCSB.EDU>
Subject: Re: Alternative for the term Relative abundance
On Wed, 7 Mar 2001, Joe Gathman wrote:
> I agree with the others that the term "relative abundance" doesn't appl
to
> your measures. It is not the typical usage with which I am familiar:
> (abundance of species i)/(abundance of all species). I use this measur
> regularly so your usage seems foreign to me.
Yes. To botanists, "relative abundance" has a precise meaning, as defined
above. We define "relative density" and "relative frequency" in a similar
manner. I would definitely avoid this term to describe what you are doing.
How about "above ground density" or "observed density?"
Robert Taylor
Biogeography Lab
Department of Geography
University of California, Santa Barbara
------------------------------
Date: Fri, 9 Mar 2001 08:19:33 -0500
From: Cynthia D Huebner/NE/USDAFS <chuebner@FS.FED.US>
Subject: summer field botanists needed -- US Forest Service
The USFS Northeastern Research Station in Morgantown, WV has an opening for
an undergraduate/graduate student interested in conducting botanical field
work this summer -- starting mid-May and ending mid-August (flexible). The
position is a GS4/5 (about $10/hr). I am looking for a person with strong
plant taxonomic skills and some knowledge of midwestern/eastern deciduous
forest flora. The botanist will be working primarily with 3-4 other field
technicians at WV and PA research sites and may also be able to participate
in other silvicultural projects. The botanist will also be working with me
on a seed bank study and an invasive vs. native species competition project
as well as helping to collect and organize voucher specimens for our
herbarium. Travel costs from Morgantown to all research sites will be
covered and a FS vehicle will be provided. Housing is not provided, but I
can help locate a relatively cheap place. If interested, please contact me
via email or phone (see below). Attaching your CV in an email will help
speed up the process. I will also need your official school transcripts
and one letter of recommendation, which also describes your student status.
Cynthia D. Huebner, Ph.D.
Research Botanist
Disturbance Ecology and Management of Oak-Dominated Forests
USDA Forest Service
Northeastern Research Station
180 Canfield St.
Morgantown, WV 26505-3180
Telephone: 304-285-1582
Fax: 304-285-1505
E-mail: chuebner@fs.fed.us
------------------------------
Date: Fri, 9 Mar 2001 10:03:01 -0500
From: Alison Gillespie <Alison@ESA.ORG>
Subject: Re: Nabokov's butterfly
There have been a few good articles in the popular press about Nabokov and =
his butterfly activities.
One was in Natural History magazine sometime within the last year or so. I =
am not sure, but I think there was also one in a recent edition of =
National Wildlife, or maybe Audubon magazine
You might try doing a search at your university library under popular =
press. A few minutes worth of looking may turn up some interesting info.
Alison
___________________
Alison Gillespie
Public Affairs Officer
Ecological Society of America
1707 H Street NW
Suite 400
Washington, DC 20006
202-833-8773 ext 211
alison@esa.org
fax: 202-833-8775=20
http://esa.sdsc.edu
>>> Robert Dana <robert.dana@DNR.STATE.MN.US> 03/07/01 12:02P
>>>
There is probably more than one. One that I am familiar with is a =3D
subspecies of the northern blue, Lycaeides idas nabokovi Masters,. This =
=3D
has been given the English name Nabokov's blue. It is a small blue =3D
butterfly (very similar to the Karner blue, Lycaeides melissa samuelis =3D
Nabokov, described by Nabokov as you can see) that is restricted to =3D
northern MN, WI, MI, MB, and ON. The only reported food plant for the =3D
caterpillars is dwarf bilberry, Vaccinium cespitosum. The butterfly occurs =
=3D
in openings on sandy/gravelly/rocky soil in the northern forest. Not all =
=3D
workers accept the distinctiveness of this entity, lumping it into the =3D
more widespread subspecies L. idas scudderi. I'll send photos to you =3D
privately as attachments to lists are frowned upon.
Robert Dana
*************************************************************
Robert Dana, Ph.D.
MN DNR
Natural Heritage and Nongame Research Program
500 Lafayette Rd, Box 25
St. Paul, MN 55155
651 297-2367
Email: robert.dana@dnr.state.mn.us=20
*************************************************************
>>> Lisa Deaton <Lmdeaton@aol.com> 3/6/01 9:18:37 PM >>>
I am trying to find out the scientific name of a butterfly named after the
Russian author Vladimir Nabokov. I am also looking for information or
photographs of the butterfly.
Thank you--Lisa
------------------------------
Date: Fri, 9 Feb 2001 10:09:38 -0500
From: Jonathan Haskett <jhaskett@MINDSPRING.COM>
Subject: Re: New pollution tool
The material on the site states that the mushrooms were able to breakdown
"heavy oil" not heavy metals. This is entirely reasonable and indeed many
bacteria are able to do the same thing and have sometimes been sprayed
(along with appropriate nutrients) on off-shore oil spills. The site made
no claim I could find to fungi being able to breakdown heavy metals.
cheers,
-JH-
>Aaron,
>The site is a commercial site devoted to hawking its wares. I have no
>problem with that. In fact the use of fungi as composting organisms is
>terrific idea and is the way things happen in natural ecosystems anyway.
>However, the site mentions nothing about breaking down heavy metals. It
>does discus breaking down toxic organic compounds, and yes, there is goo
>data to support this capacity in many microbes.
>
>BUT It is not possible to break down metals. There is no carbon nutrie
t
>for the fungus in a metal from which to make organic molecules. Besides
>most heavy metal waste is due to elemental metals such as lead and cadmi
m
>which by definition cannot be broken down.
>
>I do agree with you on the fact that at least if biological accumulators
>are used, the mass of contaminated material is greatly reduced. You do
>still have to do something with the plants or fungi though.
>
>Liane
>
>At 03:29 PM 3/8/01 -0600, you wrote:
>>http://www.fungiperfecti.com/remed.html
>>
>>Please review this link, then you may believe.....
>>
>>Aaron Turner
>>----- Original Message -----
>>From: "Judith Weis" <jweis@andromeda.rutgers.edu>
>>To: "Aaron Turner" <a-turner2@neiu.edu>
>>Cc: <ECOLOG-L@UMDD.UMD.EDU>
>>Sent: Thursday, March 08, 2001 3:15 PM
>>Subject: Re: New pollution tool
>>
>>
>>> Fungi "break down" heavy metals?????? I don't think so.
>>>
>>> 1880's: "There's lots of good fish in the sea" W.S. Gilbert
>>> 1990's: Many fish stocks depleted due to overfishing, habitat
oss,
>>> and pollution. \ \
>>> \ \ \
>>> - - _ - \ \ \ \ ----\
>>> - _ - \
>>> - - ( O \
>>> _ - -_ __ /
>>> - - /
>>> -/// _ ______ ___/
>>> /// /
>>> Judith S. Weis Department of Biological Sciences
>>> Rutgers Univ. Newark NJ 07102 jweis@andromeda.rutgers.
du
>>>
>>>
>>>
>>>
>>>
>>
>>
>
>***************************
>Liane Cochran-Stafira, Ph.D.
>Department of Biology
>Saint Xavier University
>3700 West 103rd Street
>Chicago, Illinois 60655
>
>phone: 773-298-3514
>fax: 773-779-9061
>email: cochran@sxu.edu
------------------------------
Date: Fri, 9 Mar 2001 10:16:11 -0500
From: Alison Gillespie <Alison@ESA.ORG>
Subject: Re: New pollution tool
I don't know much about bioremediation either, except for what I've =
gleened from articles like the one in the NY Times this week.
But one aspect that worries me is the potential of unleashing invasive =
exotics into areas that need restoration. I noticed, for example, that =
the species of brake fern used by the researcher working in Florida has =
been officially classified as potential invader. Other species used in =
bioremediation in America are often introduced from Asia. =20
I claim ignorance, but would love more info.
Does anyone out there know of cases where bioremediation uses invasive =
exotics? Seems to me that this might be replacing one problem with =
another. On the other hand, in the case of Florida and the brake fern, =
the fern might be succeeding because there are many sites with high =
arsenic levels. (This last bit was inferred in an article I read in =
another publication about the brake fern work.) =20
Any one have any insights or info?
=20
___________________
Alison Gillespie
Public Affairs Officer
Ecological Society of America
1707 H Street NW
Suite 400
Washington, DC 20006
202-833-8773 ext 211
alison@esa.org
fax: 202-833-8775=20
http://esa.sdsc.edu
------------------------------
Date: Fri, 9 Mar 2001 09:18:14 -0500
From: John Alderman <aldermjm@MINDSPRING.COM>
Subject: North Carolina Mussel Atlas
The NC Wildlife Resources Commission's atlas of freshwater mussels and
endangered fish is up and running. Quite a few species are now in the
atlas, and we will have the rest in soon.
Address: http://www.ncwildlife.org/pg07_WildlifeSpeciesCon/pg7b1.htm
John Alderman
Piedmont Project Leader
Nongame & Endangered Wildlife Program
NC Wildlife Resources Commission
------------------------------
Date: Fri, 9 Mar 2001 08:57:24 -0500
From: Richard Ostfeld <ROstfeld@ECOSTUDIES.ORG>
Subject: climate change and diseases of terrestrial vertebrates
I would be extremely grateful for any citations to research on the impacts
of climate change (temperature or precipitation) on diseases of terrestrial
vertebrates, especially mammals. These can include livestock, but I'm most
interested in wild vertebrates. This is for a general review of climate
change and disease.
Many thanks,
Rick Ostfeld
Richard S. Ostfeld, Ph.D.
Scientist
Institute of Ecosystem Studies
Box AB, 65 Sharon Turnpike
Millbrook, NY 12545, U.S.A.
phone: 845 677-5343
fax: 845 677-5976
email: Rostfeld@ecostudies.org
------------------------------
Date: Fri, 9 Mar 2001 10:50:09 -0500
From: Joseph Balczon <balczojm@WESTMINSTER.EDU>
Subject: Re: Alternative for the term Relative abundance
This is a MIME message. If you are reading this text, you may want to
consider changing to a mail reader or gateway that understands how to
properly handle MIME multipart messages.
--=_A8F337A9.2E4F36FE
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: quoted-printable
Hello Everyone,=20
I won't offer the solution to the problem, but I think I can shed some =
light on the source of the confusion. Krebs' Ecology text has a chapter =
on estimating population parameters, and this chapter has sections on =
estimating absolute density and indices of relative density. As examples =
of estimating absolute density, he lists total counts, quadrats, and =
mark-recapture methods. As examples of indices of relative density, he =
lists trapping (catch per unit effort), numbers of fecal pellets in an =
area, vocalization frequencies, pelt records, etc.
I do agree with the others on the list who suggested that relative =
abundance refers to something else. To me it is the number of individuals =
of species i, relative to the total number of all individuals of all =
species.
Joe Balczon
Dept. Biology
Westminster College
New Wilmington, PA 16172
--=_A8F337A9.2E4F36FE
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Description: HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" http-equiv=3DContent-Ty
e=
>
<META content=3D"MSHTML 5.00.2919.6307" name=3DGENERATOR></HEAD>
<BODY style=3D"FONT: 8pt MS Sans Serif; MARGIN-LEFT: 2px; MARGIN-TOP: =
2px">
<DIV><FONT size=3D1>Hello Everyone, </FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D1>I won't offer the solution to the problem, b
t I think =
I can=20
shed some light on the source of the confusion. Krebs' Ecology text =
has a=20
chapter on estimating population parameters, and this chapter has sections =
on=20
estimating absolute density and indices of relative density. As =
examples=20
of estimating absolute density, he lists total counts, quadrats, and=20
mark-recapture methods. As examples of indices of relative density, =
he=20
lists trapping (catch per unit effort), numbers of fecal pellets in an =
area,=20
vocalization frequencies, pelt records, etc.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D1>I do agree with the others on the list who s
ggested =
that=20
relative abundance refers to something else. To me it is the number =
of=20
individuals of species i, relative to the total number of all individuals =
of all=20
species.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D1>Joe Balczon</FONT></DIV>
<DIV><FONT size=3D1>Dept. Biology</FONT></DIV>
<DIV><FONT size=3D1>Westminster College</FONT></DIV>
<DIV><FONT size=3D1>New Wilmington, PA 16172</FONT><
/DIV>
<DIV> </DIV></BODY></HTML>
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------------------------------
Date: Fri, 9 Mar 2001 07:44:32 -0800
From: John Gerlach <gerlach1@PACBELL.NET>
Subject: Re: Nabokov's butterfly
I recall seeing a book review, I think it was in one of the February issues
of Nature, about Nabokov. I can't recall the entire title but it had the
word "blues" in it and may have been something like "In Search of the Blues"
or "Looking for Blues".
John Gerlach
Postdoctoral Research Fellow
Ecology Graduate Group
Dept. of Agronomy and Range Science
University of California
One Shields Avenue
Davis, CA 95616
(530) 752-1701
FAX (530) 752-4361
jdgerlach@ucdavis.edu
-----Original Message-----
From: Ecological Society of America: grants, jobs, news
[mailto:ECOLOG-L@UMDD.UMD.EDU]On Behalf Of Alison Gillespie
Sent: Friday, March 09, 2001 7:03 AM
To: ECOLOG-L@UMDD.UMD.EDU
Subject: Re: Nabokov's butterfly
There have been a few good articles in the popular press about Nabokov and =
his butterfly activities.
One was in Natural History magazine sometime within the last year or so. I =
am not sure, but I think there was also one in a recent edition of =
National Wildlife, or maybe Audubon magazine
You might try doing a search at your university library under popular =
press. A few minutes worth of looking may turn up some interesting info.
Alison
___________________
Alison Gillespie
Public Affairs Officer
Ecological Society of America
1707 H Street NW
Suite 400
Washington, DC 20006
202-833-8773 ext 211
alison@esa.org
fax: 202-833-8775=20
http://esa.sdsc.edu
>>> Robert Dana <robert.dana@DNR.STATE.MN.US> 03/07/01 12:02P
>>>
There is probably more than one. One that I am familiar with is a =3D
subspecies of the northern blue, Lycaeides idas nabokovi Masters,. This =
=3D
has been given the English name Nabokov's blue. It is a small blue =3D
butterfly (very similar to the Karner blue, Lycaeides melissa samuelis =3D
Nabokov, described by Nabokov as you can see) that is restricted to =3D
northern MN, WI, MI, MB, and ON. The only reported food plant for the =3D
caterpillars is dwarf bilberry, Vaccinium cespitosum. The butterfly occurs =
=3D
in openings on sandy/gravelly/rocky soil in the northern forest. Not all =
=3D
workers accept the distinctiveness of this entity, lumping it into the =3D
more widespread subspecies L. idas scudderi. I'll send photos to you =3D
privately as attachments to lists are frowned upon.
Robert Dana
*************************************************************
Robert Dana, Ph.D.
MN DNR
Natural Heritage and Nongame Research Program
500 Lafayette Rd, Box 25
St. Paul, MN 55155
651 297-2367
Email: robert.dana@dnr.state.mn.us=20
*************************************************************
>>> Lisa Deaton <Lmdeaton@aol.com> 3/6/01 9:18:37 PM >>>
I am trying to find out the scientific name of a butterfly named after the
Russian author Vladimir Nabokov. I am also looking for information or
photographs of the butterfly.
Thank you--Lisa
------------------------------
Date: Fri, 9 Mar 2001 11:27:58 -0500
From: Judith Weis <jweis@ANDROMEDA.RUTGERS.EDU>
Subject: Re: New pollution tool
The flip side of the concern over using invasives for phytoremediation is
that some species who are already at a site may be effecive at remediating
it. We have found that Phragmites, which is invading tidal wetlands in the
northeast, deals with metals in a way preferable to Spartina. Namely that
Phragmites keeps a greater amount of the metals below ground while
Spartina puts more into above-ground tissues, where they would be
present when the leaves fall off, decay, and are consumed by
detritus feeders in the salt marsh. Furthermore, metals present in the
leaves of living plants are excreted more by Spartina than Phragmites.
1880's: "There's lots of good fish in the sea" W.S. Gilbert
1990's: Many fish stocks depleted due to overfishing, habitat loss,
and pollution. \ \
\ \ \
- - _ - \ \ \ \ ----\
- _ - \
- - ( O \
_ - -_ __ /
- - /
-/// _ ______ ___/
/// /
Judith S. Weis Department of Biological Sciences
Rutgers Univ. Newark NJ 07102 jweis@andromeda.rutgers.edu
------------------------------
Date: Fri, 9 Mar 2001 13:15:11 -0500
From: "David W. Inouye" <di5@umail.umd.edu>
Subject: Job: RA needed for research on livestock grazing effects. CO
>ASSISTANT NEEDED FOR RESEARCH ON LIVESTOCK GRAZING EFFECTS
>
>I am a Colorado State University PhD student looking for help with fiel
>research in the bunchgrass steppe of central/eastern Washington state t
is
>May and June 2001. We will be sampling soils, plant species compositio
,
>primary productivity, and consumption across grazing intensity gradient
in
>sites near the towns of Ellensburg, Vantage, and Grand Coulee. The
>assistant will gain experience in a wide variety of field techniques an
>have the opportunity to develop and carry out a related, independent
>project.
>
>Dates: May 7 - June 23, 2001 (with some flexibility)
>
>Stipend: $200/week + room and board.
>
>Qualifications:
>1) Ability to maintain a sense of humor while working long hours under
>difficult conditions (cold, heat, wind)
>2) Previous field work experience and references
>3) Plant taxonomy/botany experience desirable but not required
>4) I will give special consideration to current undergraduate students
>seeking a topic for an honors thesis/senior project.
>
>Please contact:
>
>Peter B. Adler
>Rangeland Ecosystem Science
>Natural Resources
>Colorado State University
>Fort Collins, CO 80521
>(970) 491-7274
>petera@lamar.colostate.edu
------------------------------
Date: Fri, 9 Mar 2001 11:57:29 -0500
From: Steve Franks <franks@DOGWOOD.BOTANY.UGA.EDU>
Subject: Re: Nabokov's butterfly
Nabokov's Blues: The Scientific Odyssey of a Literary Genius
by Kurt Johnson, Steve Coates, Steven L. Coates
__________________________________________
Steve Franks
Dept. of Botany
The University of Georgia
Athens, GA 30602
(706) 542-3869 [lab]
(706) 542-1805 [fax]
franks@dogwood.botany.uga.edu
http://dogwood.botany.uga.edu/~franks/franks.html
__________________________________________
-----Original Message-----
From: Ecological Society of America: grants, jobs, news
[mailto:ECOLOG-L@UMDD.UMD.EDU]On Behalf Of John Gerlach
Sent: Friday, March 09, 2001 10:45 AM
To: ECOLOG-L@UMDD.UMD.EDU
Subject: Re: Nabokov's butterfly
I recall seeing a book review, I think it was in one of the February issues
of Nature, about Nabokov. I can't recall the entire title but it had the
word "blues" in it and may have been something like "In Search of the Blues"
or "Looking for Blues".
John Gerlach
Postdoctoral Research Fellow
Ecology Graduate Group
Dept. of Agronomy and Range Science
University of California
One Shields Avenue
Davis, CA 95616
(530) 752-1701
FAX (530) 752-4361
jdgerlach@ucdavis.edu
-----Original Message-----
From: Ecological Society of America: grants, jobs, news
[mailto:ECOLOG-L@UMDD.UMD.EDU]On Behalf Of Alison Gillespie
Sent: Friday, March 09, 2001 7:03 AM
To: ECOLOG-L@UMDD.UMD.EDU
Subject: Re: Nabokov's butterfly
There have been a few good articles in the popular press about Nabokov and =
his butterfly activities.
One was in Natural History magazine sometime within the last year or so. I =
am not sure, but I think there was also one in a recent edition of =
National Wildlife, or maybe Audubon magazine
You might try doing a search at your university library under popular =
press. A few minutes worth of looking may turn up some interesting info.
Alison
___________________
Alison Gillespie
Public Affairs Officer
Ecological Society of America
1707 H Street NW
Suite 400
Washington, DC 20006
202-833-8773 ext 211
alison@esa.org
fax: 202-833-8775=20
http://esa.sdsc.edu
>>> Robert Dana <robert.dana@DNR.STATE.MN.US> 03/07/01 12:02P
>>>
There is probably more than one. One that I am familiar with is a =3D
subspecies of the northern blue, Lycaeides idas nabokovi Masters,. This =
=3D
has been given the English name Nabokov's blue. It is a small blue =3D
butterfly (very similar to the Karner blue, Lycaeides melissa samuelis =3D
Nabokov, described by Nabokov as you can see) that is restricted to =3D
northern MN, WI, MI, MB, and ON. The only reported food plant for the =3D
caterpillars is dwarf bilberry, Vaccinium cespitosum. The butterfly occurs =
=3D
in openings on sandy/gravelly/rocky soil in the northern forest. Not all =
=3D
workers accept the distinctiveness of this entity, lumping it into the =3D
more widespread subspecies L. idas scudderi. I'll send photos to you =3D
privately as attachments to lists are frowned upon.
Robert Dana
*************************************************************
Robert Dana, Ph.D.
MN DNR
Natural Heritage and Nongame Research Program
500 Lafayette Rd, Box 25
St. Paul, MN 55155
651 297-2367
Email: robert.dana@dnr.state.mn.us=20
*************************************************************
>>> Lisa Deaton <Lmdeaton@aol.com> 3/6/01 9:18:37 PM >>>
I am trying to find out the scientific name of a butterfly named after the
Russian author Vladimir Nabokov. I am also looking for information or
photographs of the butterfly.
Thank you--Lisa
------------------------------
Date: Fri, 9 Mar 2001 12:54:24 -0500
From: "David M. Bryant" <dmbryant@CISUNIX.UNH.EDU>
Subject: Re: New pollution tool
The idea of using invasive species for phytoremediation brings up a very
timely issue. Is the risk of introducing, or propogating invasive species
worth the benefit of phytoremediation? Would the risk of producing a
monoculture of aggressive, wind borne propogators be worth removing a
relatively minor concentration of heavy metals from the soil? Being an
optimistic species, for the most part, we are prone to seeing the rosey
side of an issue while ignoring the potential for disaster.
While spartina may translocate toxins to foliage, wouldn't that make it
easier to harvest the biomass and remove it? Even if it takes multiple
harvests, the marsh would still provide native habitat afterwards.
Furthermore, if phragmites puts toxins in its roots how is that better?
Roots decay also, and if I'm not mistaken, the chelated form of metals
produced in biomass would be MORE mobile following decomposition.
This would be true for fungi as well, the one point that I have not seen
discussed yet is "how do you remove the fungi after it has bioaccumulated
toxins?" Has anyone out there actually tried to separate fungal hyphae
from soil? Make sure that your health benefits include opthomology!
------------------------------
Date: Fri, 9 Mar 2001 12:03:17 -0500
From: Karen Claxon <kclaxon@EARTHLINK.NET>
Subject: Should the public have access to research data?
|
| Policy & Research Issues
|
| Tax dollars pay for a large share of scientific research, but how much
access | should the public have to this research data? The ongoing
debate over a law |requiring federal grantees to disclose data that
result in a published report or| underlie federal regulations, is the
featured topic of a workshop on Monday,| March 12. Join the discussion
by listening to a live audio Webcast and| submitting questions using an
email form; both accessible on the National-Academies.org home page from
8 a.m. to 1 p.m., Monday, March 12. http://www.nationalacademies.org/
http://www4.nationalacademies.org/webcr.nsf/(MeetByDocID)/62DF8A8EA2573E
B2852569E3006C5620?OpenDocument
| *******************************************
| ******************************************
| NEW ONLINE BOOKS
| |
| Ecological Monitoring of Genetically Modified Crops: A Workshop
Summary
| http://www.nap.edu/catalog/10068.html?onpi_listserv030201
|
| | Challenges in Ocean Policy
| http://www.nap.edu/catalog/10074.html?onpi_listserv030201
|
| Aquifer Storage and Recovery in the Comprehensive Everglades
Restoration Plan:
| A Critique of the Pilot Projects and Related Plans for ASR in the Lake
| Okeechobee and Western Hillsboro Areas
| http://www.nap.edu/catalog/10061.html?onpi_listserv030201
|
|
------------------------------
Date: Fri, 9 Mar 2001 18:29:24 +0100
From: isabella capellini <isa.cap@LIBERO.IT>
Subject: Re: Radio Tracking
This is a multi-part message in MIME format.
------=_NextPart_000_0000_01C0A8C6.DDA5DE80
Content-Type: text/plain;
charset="Windows-1252"
Content-Transfer-Encoding: Quoted-Printable
Here are some books about radio-tracking and data analysis :
1. DIXON K.R. & CHAPMAN J.A. (1980): Harmonic mean measure of animal
activity areas. Ecology, 61 (5): 1040=961044.
2. HARRIS S., CRESSWELL W.J., FORDE P.G., TREWHELLA W.J., WOOLLARD T=
&
WRAY S. (1990): Home range analysis using radiotracking data =96 Review o=
f
problems and techniques particularly as applied to the study of mammals.
Mammal Review vol.20, nos.2/3: 97=96123.
3. KENWARD R. (1987): Wildlife radio tagging. Equipment, field
techniques and data analysis. Academic Press, London: 222pp.
4. LAUNDR=C9 J.W., REYNOLDS T.D., KNICK S.T. & BALL I.J. (1987): Acc=
uracy
of daily point relocations in assessing real movement of radio-marked
animals. Journal of Wildlife Management, 51 (4): 937-940.
5. LEE J.E., WHITE G.C., GARROTT R.A., BARTMANN R.M. & ALLDREDGE A.W=
=2E
(1985): Accessing accuracy of a radiotelemetry system for estimating anim=
al
locations. Journal of Wildlife Management, 49 (3): 658=96663.
6. MECH D. (1983): Handbook of animal radio-tracking. University of
Minnesota Press, Minneapolis: 108pp.
7. PEDROTTI L., TOSI G., FACOETTI R. & PICCININI S. (1995):
Organizzazione di uno studio mediante radio-tracking e analisi degli home
range: applicazione agli Ungulati alpini. Supplemento alle Ricerche di
Biologia della Selvaggina, vol. XXIII: 3-100 (In Italian)
8. WHITE G.C. & GARROTT R.A. (1990): Analysis of wildlife
radio-tracking data. Academic Press Inc., San Diego: 383pp.
And some papers:
9. SPRINGER T.J. (1979): Some sources of bias and sampling error in
radio triangulation. Journal of Wildlife Management 43 (4): 926-935.
10. SWIHART R.K. & SLADE N.A. (1985): Testing for independence of
observations in animal movements. Ecology, 66 (4): 1176-1184.
11. WORTON B.J. (1989): Kernel methods for estimating the utilizatio=
n
in home range studies. Ecology, 70 (1): 164-168.
12. ZIMMERMAN J.W. & POWELL R.A. (1995): Radiotelemetry error: locat=
ion
error method compared with error polygons and confidence ellipses. Canadi=
an
Journal of Zoology, 73: 1123-1133.
Good luck!
Isabella Capellini
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------------------------------
Date: Fri, 9 Mar 2001 12:15:04 -0700
From: Kelsey Milner <kelsey@FORESTRY.UMT.EDU>
Subject: Graduate Research Assistantship in Forest Modeling
Graduate Research Assistantship in Forest Modeling
A graduate research assistantship in modeling forest dynamics is
available in the School of Forestry, University of Montana. We seek a Ph.D.
student to work on developing hybrid physiological/biometrical models
useful in addressing forest management issues ranging from traditional
silvicultural responses to ecosystem function. The project will initially fo
us
on enhancing and testing a current linkage between the USDA Forest
Service's biometrical model, the Forest Vegetation Simulator, and the
climate driven physiological model, Stand-BGC. More generally, the student
will investigate ways for disparate models, with different temporal and
spatial resolutions, to communicate during the course of a simulation so tha
the strengths of each modeling approach are brought to bear on the outcome.
There is ample flexibility in the proposed project for the Ph.D. candidate t
develop particular details of the study to suit their background and interes
s.
The assistantship will include an annual stipend ($15,600) for three years
and a tuition waiver. It is anticipated that the student would begin by Fal
2001, though some flexibility is possible.
The University of Montana School of Forestry is a center for
excellence in forestry research and a leader in integrated natural resource
education. The School has over 30 full time faculty and approximately 110
graduate students (~25% Ph.D.) involved in basic and applied ecology,
wildlife biology, forest resource management, watershed-hydrology,
landscape ecology, and recreation management. Further information about
UM School of Forestry is available at http://www.forestry.umt.edu/.
For more information contact:
Kelsey S. Milner
Champion Professor of Forestry
School of Forestry, University of Montana
Missoula, MT 59812-0576
(406) 243-6653
(406) 243-4845 fax
kelsey@forestry.umt.edu
------------------------------
Date: Fri, 9 Mar 2001 15:41:00 -0500
From: "Weatherford, Richard K Contractor DPW"
<Richard.Weatherford@STEWART.ARMY.MIL>
Subject: Summer Field Technician Positions
Summer Job Opportunity!
Type of position: The Integrated Training Area Management Program (ITAM) is
the Army's solution to linking natural resource management with military
training. The Land Condition Trend Analysis (LCTA) component of the program
is responsible for monitoring land condition at Army installations through
vegetation and animal surveys, and degradation surveys, and is instrumental
in the rehabilitation and maintenance of these lands. The LCTA Program at
Fort Stewart, Georgia, is seeking 2 field crew personnel to assist permanent
Fort Stewart LCTA staff in vegetation and site degradation surveys, wetland
delineation, GPS mapping, and in describing and identifying vegetation
communities. The ITAM program is a contract program administered by
Colorado State University's Center for the Ecological Management of Military
Lands
Location: Fort Stewart - 280,000 acre Army Installation, approximately 20
miles southwest of Savannah, Georgia located on the Georgia Coastal Plain.
Duration of Employment: Up to six months, May 2000 to October 2000 (we can
be flexible).
Salary: $10.00-12.00 per hour, dependent upon qualifications.
Job Description: The successful applicant will assist CSU personnel at Fort
Stewart in monitoring a permanent vegetation plot system collecting
qualitative and quantitative data including land use, ground disturbance and
cover, and plant composition. The Global Positioning System (GPS) will be
used for navigating to plot locations. The Field crew will also gain
experience assisting in wetland delineation, GPS mapping, and GIS processing
using ArcView and other GIS programs.
Qualifications: Masters students or graduates with a BS/BA degree in
biology, ecology, forestry or a related field are preferred but anyone with
solid coursework and/or experience with plant identification, especially of
the southeastern coastal plain, field monitoring methods, and a love of the
environment will be considered. Due to the nature of the work, applicants
should also be willing and able to work in and endure the heat and humidity
of the southeast, drive a 4x4 jeep and 4-wheeler, use a compass and
topographic maps, and be at least familiar with computer operation and data
entry. Familiarity with GPS and GIS is also desired, but will be taught on
site if needed.
Application Procedure: Submit a resume, three references, college
transcripts (photocopies will suffice), and a letter of application
describing your qualifications for this position to:
DOT, Range Division
Attn: Richard Weatherford
2265 GA HWY 144 East
Fort Stewart, GA 31314-3904
Closing Date: when filled.
For further information, contact Richard Weatherford at:
(912) 767-5874 or
richard.weatherford@stewart.army.mil
CSU is EEO/AA employer.
------------------------------
Date: Fri, 9 Mar 2001 13:43:12 -0700
From: "Vierling, Lee" <LVierlin@TAZ.SDSMT.EDU>
Subject: Asst./Assoc. Professor Opportunity -- Biogeochemistry
Assistant or Associate Professor
Institute of Atmospheric Sciences
Faculty Position Announcement
The Institute of Atmospheric Sciences (IAS) at the South Dakota School of
Mines and Technology is seeking an interdisciplinary scientist to teach and
perform research in the areas of terrestrial and/or aquatic biogeochemistry
with an emphasis on assessing the effects of changing agricultural and
forest land use practices on terrestrial carbon storage.
The successful applicant should possess expertise in field measurements,
biogeochemical modeling and data synthesis, and be able to place research
findings in the context of local, regional, and global-scale carbon and
other biogeochemical budgets. We seek an individual who can attract
external funding, who will willingly recruit and interact with graduate and
undergraduate students in the Atmospheric and Earth System Science programs
at SDSM&T, and work effectively in an interdisciplinary academic setting.
The person will be encouraged to teach and develop graduate and/or
undergraduate courses in the areas of atmospheric, terrestrial, and aquatic
aspects of global change, biogeochemistry, and related studies. Persons
interested in applying should possess a Ph.D. in atmospheric sciences,
biology, ecology, chemistry or a related discipline by May 2001. The
anticipated start date is July 1, 2001.
SDSM&T is a state university providing graduate and undergraduate degrees in
science, engineering, and interdisciplinary studies. SDSM&T has had an
international reputation as a leader in preparing world-class engineers and
scientists since 1885. The campus has an enrollment of approximately 2,300
traditional and non-traditional students from nearly 40 states and 20
countries. Rapid City is the second largest city in South Dakota, with a
population of more than 60,000. It is the hub of commerce for western South
Dakota, eastern Wyoming, and northwestern Nebraska. Twenty minutes from
Mount Rushmore, Rapid City and the adjacent Black Hills National Forest
offer a wide range of opportunities for environmental research as well as
summer and winter recreational activities. For more information regarding
the school, visit www.sdsmt.edu.
Send letter of application, curriculum vitae, and the contact information of
at least three references to:
Director, Institute of Atmospheric Sciences
South Dakota School of Mines and Technology
501 East St. Joseph Street
Rapid City, SD 57701-3995
Applications will be reviewed beginning April 2, 2001, and will continue
until the position is filled. For additional information, please call (605)
394-2291.
South Dakota School of Mines and Technology does not discriminate on the
basis of race, color, national origin, military status, sex, religion, age,
sexual orientation, political preference or disability in employment or the
provision of service.
------------------------------
Date: Fri, 9 Mar 2001 16:36:08 -0500
From: "E. Ann Poole" <eann@JUNO.COM>
Subject: ENVIRONMENTALIST IAN McHARG DIES AT 80
ENVIRONMENTALIST IAN McHARG DIES AT 80
By Chris Barber, Staff Writer March 08, 2001
<http://www.zwire.com/images/spacer.gif
EAST MARLBOROUGH -- Ian McHarg, an environmentalist, writer
and prime mover of the first Earth Day, died on Monday, March 5.
He was 80. The emeritus professor of Landscape Architecture
and Regional Planning at the University of Pennsylvania was
known worldwide for introducing ecological concerns into land
planning.
On April 22, 1970, he stood before 30,000 people in Philadelphia's
Fairmount Park in the name of protecting the earth with other
environmentalists, including Sen. Edmund Muskie of Maine
and biologist George Wald. It was the largest such gathering
in the nation.
He said afterward that the first Earth Day, which would come to
be known as the turning point in the environmental movement,
was a natural outgrowth of what was happening in the country
at the time.
"I think it was the loss of countryside -- cutting down trees, Pete
Seeger singing 'Little Boxes Made of Ticky Tack' ... the elimination
of farmland... A growing youth culture had seen Napalm and
defoliants in Vietnam and the destruction of land," he said in a
1999 interview with the Daily Local News.
Stroud Water Research Center scientist Denis Newbold was a
student at Swarthmore College at the time, and he went in to
Philadelphia for the Earth Day events.
"He was a major influence on the direction my life took, in the
sense that he was the father of ecological land planning, and
his book, 'Design With Nature,' brought a whole concept of
ecology to land planning. I read his books, attended his lectures
and moved from engineering to land planning," he said.
Newbold, who knew McHarg through their mutual membership
in London Grove Friends Meeting, said it was an honor to
have been his friend.
"He was a towering figure in ecological planning ... He looked
at all the ecological factors in the landscape to design a
community including wetlands, streams, rivers, forests,
geology and rare and endangered species. The environment
came first," he said.
Newbold added that it was safe to say that hundreds of
thousands of planners have been influenced by McHarg's ideas.
"He wasn't a voice in the wilderness ... The way we plan today
is far better than before his viewpoint was established.
It has become standard fare in the planning processes," he said.
Brandywine Conservancy spokesman Halsey Spruance said
that McHarg set the stage for a lot of what the organization
does now in the area of land preservation, water use and
planting native flowers.
Tim Wickes, former owner of the Corner Store Cafe in Unionville,
saw McHarg often when he came in for a bite to eat just down
the street from where he lived.
"(McHarg) has been a fixture in the community for a long time.
He'd come in once or twice a week. He liked to know what
was going on in the neighborhood and how business was.
He obviously liked living where he did, and he liked being part
of a small town," Wickes said.
Born in Scotland, McHarg received the Harvard Lifetime
Achievement Award and 15 medals. Last year he was awarded
the Japan Prize in city planning for the scientist or researcher
who has made a substantial contribution to the advancement
of science and technology.
In 1984, Connoisseur Magazine named him as of 131
"American Living Monuments." His "Man and Envirnment"
class at Penn spanned 20 years. He has also been featured as
host of the CBS series, "The House We Live In" and in his film,
"Multiply ... and Subdue the Earth." His publications included
"Design With Nature." "A Quest for Life," "The Once and Future
Forest" and "To Heal the Earth."
------------------------------
Date: Fri, 9 Mar 2001 15:11:16 -0500
From: Matthew Landis <rmlandis@LIFE.BIO.SUNYSB.EDU>
Subject: Re: Nabokov's butterfly
There was a good article on Nabokov and his butterflies in the Atlantic
Monthly a few months ago, I believe.
Matt
----- Original Message -----
From: Alison Gillespie <Alison@ESA.ORG>
To: <ECOLOG-L@UMDD.UMD.EDU>
Sent: 09 March, 2001 10:03 AM
Subject: Re: Nabokov's butterfly
> There have been a few good articles in the popular press about Nabokov
nd
=
> his butterfly activities.
>
> One was in Natural History magazine sometime within the last year or so
I
=
> am not sure, but I think there was also one in a recent edition of =
> National Wildlife, or maybe Audubon magazine
>
> You might try doing a search at your university library under popular =
> press. A few minutes worth of looking may turn up some interesting inf
.
>
> Alison
>
>
>
> ___________________
>
> Alison Gillespie
> Public Affairs Officer
> Ecological Society of America
> 1707 H Street NW
> Suite 400
> Washington, DC 20006
> 202-833-8773 ext 211
> alison@esa.org
> fax: 202-833-8775=20
> http://esa.sdsc.edu
>
> >>> Robert Dana <robert.dana@DNR.STATE.MN.US> 03/07/01 1
:02PM >>>
> There is probably more than one. One that I am familiar with is a =3D
> subspecies of the northern blue, Lycaeides idas nabokovi Masters,. Thi
=
> =3D
> has been given the English name Nabokov's blue. It is a small blue =3D
> butterfly (very similar to the Karner blue, Lycaeides melissa samuelis
3D
> Nabokov, described by Nabokov as you can see) that is restricted to =3
> northern MN, WI, MI, MB, and ON. The only reported food plant for the =
D
> caterpillars is dwarf bilberry, Vaccinium cespitosum. The butterfly occ
rs
=
> =3D
> in openings on sandy/gravelly/rocky soil in the northern forest. Not al
=
> =3D
> workers accept the distinctiveness of this entity, lumping it into the
3D
> more widespread subspecies L. idas scudderi. I'll send photos to you =3
> privately as attachments to lists are frowned upon.
>
> Robert Dana
>
> *************************************************************
> Robert Dana, Ph.D.
> MN DNR
> Natural Heritage and Nongame Research Program
> 500 Lafayette Rd, Box 25
> St. Paul, MN 55155
> 651 297-2367
> Email: robert.dana@dnr.state.mn.us=20
> *************************************************************
>
> >>> Lisa Deaton <Lmdeaton@aol.com> 3/6/01 9:18:37 PM >
>>
> I am trying to find out the scientific name of a butterfly named after
he
> Russian author Vladimir Nabokov. I am also looking for information or
> photographs of the butterfly.
> Thank you--Lisa
>
------------------------------
Date: Fri, 9 Mar 2001 18:34:35 -0500
From: "David W. Inouye" <di5@umail.umd.edu>
Subject: NASA image collection
10. Visible Earth - NASA [Quicktime, .mpg, .tiff, .tar]
http://visibleearth.nasa.gov/
NASA's Visible Earth site is a solid and easy-to-use collection of
images and animations of our planet. At present, the database holds
1,610 records and may be searched by keyword or advanced search
options or browsed by category and topic. Initial returns include a
large thumbnail which links to a several-paragraph description and
the full-size images or animations. A nice resource for both teachers
and interested general users. [MD]
From The Scout Report, Copyright Internet Scout Project 1994-2001.
http://scout.cs.wisc.edu/
------------------------------
Date: Fri, 9 Mar 2001 13:58:00 -0500
From: Kevin Hutton <khutton@CNIE.ORG>
Subject: NCSE Leads Effort to Advance Environmental Science Spending
[ HTML version of this update is at http://www.cnie.org/Updates/92.htm ]
NCSE Leads Effort to Advance Environmental Science Spending
More Letters needed right away
More than 100 university and college presidents, scientific, business
and environmental leaders have joined NCSE in signing a letter to
President George W. Bush urging him to significantly increase funding
for a broad range of science for the environment programs across the
federal government. If the head of your institution has not yet signed
the letter, please encourage him or her to fax their signatures to NCSE
by March 15 for inclusion in the next round of signatures. The letter
and list of signers will be included in testimony that NCSE will present
to the House of Representatives appropriations committee on March 21.
NCSE has joined 60 other organizations and institutions in a letter to
House and Senate Budget Committees asking for a strong allocation of
funding for general science, space and technology in the FY 2002 Budget
Resolution. If your Representative or Senator is on the Budget
Committee, please send similar letters to them.
The Bush Budget:
http://www.whitehouse.gov/news/usbudget/blueprint/budtoc.html
SENATOR BOND REMAINS COMMITTED TO DOUBLING THE NSF BUDGET TO $7.8
BILLION BY FY2005
Senator Kit Bond (R-MO) who chairs the Senate subcommittee that funds
NSF has announced that he remains committed to doubling the NSF budget
to a total of $7.8 billion by FY 2005. To achieve this pace, Senator
Bond reportedly handed a letter to President Bush in the White House
that expressed his desire for an increase of at least 15% in FY 2002.
Senator Bond and Senator Barbara Mikulski (D-MD), the leading Democrat
on the subcommittee, have stated their interest in once again asking
their colleagues to sign a letter asking that NSF funding be doubled in
5 years. Last year 41 other Senators signed this letter, which also had
the support of Senate Appropriations Committee Chair Ted Stevens (R-AK)
and Senate Budget Committee Chair Pete Domenici (R-NM). NCSE and the
entire scientific community appreciate the leadership of these Senators.
Please write to your Senators and ask that they sign the Bond-Mikulski
letter for doubling the NSF budget and also write to Senators Bond and
Mikulski to thank them for their leadership. Please send copies of any
letters that you send and any responses you receive to NCSE. Addresses
for all Senators are: U.S. Senate, Washington, DC 20510.
Representative James Walsh (R-NY), who chairs the House Subcommittee
that funds NSF, Sherwood Boehlert, (R-NY) who chairs the House Science
subcommittee, and several Democrat Congressmembers have reportedly
agreed to send a letter to their colleagues in the House of
Representatives. When this letter is sent NCSE will ask you to contact
your Congressmember to sign on.
D. Allan Bromley, Science Advisor to President George Bush from
1989-1992 wrote an opinion-editorial in today's New York Times arguing
that against cuts in science spending. According to Dr. Bromley:
"Economists, including Alan Greenspan, attribute much of America's
1990's boom to increased productivity stemming, in large part, from
scientific research. . . . Congress must increase the federal investment
in science. No science, no surplus. It's that simple."
If you wish to affect President Bush's proposed budget for science and
the environment, before it is released on April 3, please write to:
Mr. Mitchell Daniels
Director
Office of Management and Budget,
New Executive Office Building
725 17th St. NW
Washington, DC 20500
President George W. Bush
The White House
1600 Pennsylvania Ave
Washington, DC 20503
Your Senators
U.S. Senate
Washington, DC 20510
Your Congressional Representative
U.S. House of Representatives
Washington, DC 20515
(Ask that they send letters to OMB in support of science funding)
Your local newspaper.
Please send a copy of your letter to NCSE at cnie@cnie.org or fax
202-628-4311.
A sample letter can be found at
http://www.cnie.org/updates/bushsample.htm
National Council for Science and the Environment
1725 K Street, N.W. Suite 212 Washington, DC 20006-1401
202/530-5810 cnie@cnie.org Fax 202/628-4311 www.cnie.org
Dr. Bromley's Op-Ed piece in the New York Times follows:
3/9/01 NEW HAVEN -- When President Bush spoke to Congress and the
nation on Feb. 27, he outlined three cardinal goals: a $1.6 trillion tax
cut, a first-class education for every child and a restructured military
that confronts emerging post-cold-war threats. The next day, he
announced a budget that jeopardizes the nation's ability to achieve any
of these truly laudable goals.
Both the tax cut and the spending that would support educational and
military buildups depend upon an estimated $5.6 trillion surplus over
the next 10 years. Where is all that money coming from? There are
several sources, but the major driver of our nation's economic success
is scientific innovation. And the Bush budget includes cuts, after
accounting for inflation, to the three primary sources of ideas and
personnel in the high-tech economy: the National Science Foundation is
cut by 2.6 percent, NASA by 3.6 percent and the Department of Energy by
an alarming 7.1 percent.
Economists, including Alan Greenspan, attribute much of America's 1990's
boom to increased productivity stemming, in large part, from scientific
research. Two simple discoveries -- the transistor and the fiber optic
cable -- are at the root of it. Anyone skeptical of this should turn off
the computer for a day and see how much work gets done.
The 21st century economy will continue to depend on scientific
innovation. Economists estimate that innovation and the application of
new technology have generated at least half of the phenomenal growth in
America's gross domestic product since World War II. Keeping that
economic source productive is critical to both national prosperity and
federal revenues. (And
where defense is concerned, basic scientific discovery also has a more
direct role: it leads to the applied science that eventually provides
advances in defense hardware.)
Technological innovation depends upon the steady flow of discoveries and
trained workers generated by federal science investments in universities
and national laboratories. These discoveries feed directly into the
industries that drive the economy. It's a straightforward relationship:
industry is attentive to immediate market pressures, and the federal
government
makes the investments that ensure long-term competitiveness.
The proposed cuts to scientific research are a self-defeating policy.
Congress must increase the federal investment in science. No science, no
surplus. It's that simple.
--Dr. Allan Bromley, Science and Technology Advisor to President George
H.W. Bush, 1989-1992
New York Times, 3/9/01
--
Kevin Hutton, Webmaster
National Council for Science and the Environment
1725 K St. NW Suite 212 Washington, DC 20006
http://www.cnie.org
------------------------------
Date: Fri, 9 Mar 2001 16:08:59 -0800
From: "Steyermark, Anthony" <ASteyermark@MEDNET.UCLA.EDU>
Subject: index of productivity
i am interested in obtaining an index of productivity for various islands,
countries, and continents, averaged over a year. i have tried various
government sites (such as ncdc and noaa), but can only find precipitation
data. does anyone know of a website where productivity data are available in
a user friendly format.
thank you for any help
sincerely,
anthony steyermark
Anthony Steyermark
Department of Physiology
UCLA School of Medicine
Los Angeles, CA 90095-1751
Phone: (310) 825-6076
Fax: (310) 206-5661
email: asteyermark@mednet.ucla.edu
url: http://www.bol.ucla.edu/~asteyer/
------------------------------
Subject: ECOLOG-L Digest - 9 Mar 2001 to 10 Mar 2001
To: Recipients of ECOLOG-L digests <ECOLOG-L@UMDD.UMD.EDU>
Status: R
There are 6 messages totalling 439 lines in this issue.
Topics of the day:
1. New pollution tool
2. ENVIRONMENTALIST IAN McHARG DIES AT 80
3. Alternative for the term Relative abundance
4. Relative Abundance...Thanks!
5. new pollution tool
6. index of productivity
----------------------------------------------------------------------
Date: Fri, 9 Mar 2001 21:49:01 -0500
From: Judith Weis <jweis@ANDROMEDA.RUTGERS.EDU>
Subject: Re: New pollution tool
Metals that are in roots are underground and much less likely to get into
the food web than metals that are in leaves. While Spartina puts a greater
proportion of metals in leaves, it is not a hyperaccumulator. Those plants
that are hyperaccumulators put most of the metals in leaves, and it is
worthwhile to harvest them (and put them in hazardous waste
facilities!) For Spartina, there are not such high concentrations that
this would be worthwhile, especially considering how disruptive repetitive
harvesting would be in a salt marsh.
1880's: "There's lots of good fish in the sea" W.S. Gilbert
1990's: Many fish stocks depleted due to overfishing, habitat loss,
and pollution. \ \
\ \ \
- - _ - \ \ \ \ ----\
- _ - \
- - ( O \
_ - -_ __ /
- - /
-/// _ ______ ___/
/// /
Judith S. Weis Department of Biological Sciences
Rutgers Univ. Newark NJ 07102 jweis@andromeda.rutgers.edu
------------------------------
Date: Fri, 9 Mar 2001 19:35:59 -0800
From: Wayne Tyson <landrest@UTM.NET>
Subject: Re: ENVIRONMENTALIST IAN McHARG DIES AT 80
I hope that the profession of landscape architecture lionizes McHarg, and
in the process moves ecology into its curricula and thinking more
widely. It is time to reflect upon the crucial distinction between
assembling plants in arrangements we prefer at the expense of ecosystems
and the mending of the ecosystems we break in the process of land use. Too
few landscape architects recognize this distinction at all, much less
understand it. The real and true can be beautiful, so this is not a plea
to end art, but to expand it into undreamt of realms of beauty. It is not
a call for the diminution of landscape architecture, but for its maturation.
I hope that ecologists will find a way to lead in the process of evolving
from land-scaping (from the Old Dutch skep--to hack, to cut) to
land-healing, to land-restoring, in the way we deal with the earth. This
requires not simply a gut-level or even a "refined" aesthetic, but a deep
understanding of ecology in its true sense rather than as a mere
all-purpose buzz-word for spin, for publicity, for deception. Like it or
not, politically correct or not, this culture (there comes another word
rooted in "cut") continues to lay waste to ecosystems, even as it deludes
itself that it is "improving" it.
It is a big job, but the time has come, not merely to criticize, but to
simply tell, and keep telling, despite the protestations of conventional
egos, the simple truth that land cosmetics with unsustainable vegetation
will not heal the earth--that on the contrary, conventional, traditional
landscape architecture ensures its continued injury.
Regretfully but optimistically submitted,
WT
At 04:36 PM 03/09/2001 -0500, E. Ann Poole wrote:
>ENVIRONMENTALIST IAN McHARG DIES AT 80
>
>By Chris Barber, Staff Writer March 08, 2001
> <http://www.zwire.com/images/spacer.gif
>
>EAST MARLBOROUGH -- Ian McHarg, an environmentalist, writer
>and prime mover of the first Earth Day, died on Monday, March 5.
>He was 80. The emeritus professor of Landscape Architecture
>and Regional Planning at the University of Pennsylvania was
>known worldwide for introducing ecological concerns into land
>planning.
>
>On April 22, 1970, he stood before 30,000 people in Philadelphia's
>Fairmount Park in the name of protecting the earth with other
>environmentalists, including Sen. Edmund Muskie of Maine
>and biologist George Wald. It was the largest such gathering
>in the nation.
>
>He said afterward that the first Earth Day, which would come to
>be known as the turning point in the environmental movement,
>was a natural outgrowth of what was happening in the country
>at the time.
>
>"I think it was the loss of countryside -- cutting down trees, Pete
>Seeger singing 'Little Boxes Made of Ticky Tack' ... the elimination
>of farmland... A growing youth culture had seen Napalm and
>defoliants in Vietnam and the destruction of land," he said in a
>1999 interview with the Daily Local News.
>
>Stroud Water Research Center scientist Denis Newbold was a
>student at Swarthmore College at the time, and he went in to
>Philadelphia for the Earth Day events.
>
>"He was a major influence on the direction my life took, in the
>sense that he was the father of ecological land planning, and
>his book, 'Design With Nature,' brought a whole concept of
>ecology to land planning. I read his books, attended his lectures
>and moved from engineering to land planning," he said.
>
>Newbold, who knew McHarg through their mutual membership
>in London Grove Friends Meeting, said it was an honor to
>have been his friend.
>
>"He was a towering figure in ecological planning ... He looked
>at all the ecological factors in the landscape to design a
>community including wetlands, streams, rivers, forests,
>geology and rare and endangered species. The environment
>came first," he said.
>
>Newbold added that it was safe to say that hundreds of
>thousands of planners have been influenced by McHarg's ideas.
>
>"He wasn't a voice in the wilderness ... The way we plan today
>is far better than before his viewpoint was established.
>It has become standard fare in the planning processes," he said.
>
>Brandywine Conservancy spokesman Halsey Spruance said
>that McHarg set the stage for a lot of what the organization
>does now in the area of land preservation, water use and
>planting native flowers.
>
>Tim Wickes, former owner of the Corner Store Cafe in Unionville,
>saw McHarg often when he came in for a bite to eat just down
>the street from where he lived.
>
>"(McHarg) has been a fixture in the community for a long time.
>He'd come in once or twice a week. He liked to know what
>was going on in the neighborhood and how business was.
>He obviously liked living where he did, and he liked being part
>of a small town," Wickes said.
>
>Born in Scotland, McHarg received the Harvard Lifetime
>Achievement Award and 15 medals. Last year he was awarded
>the Japan Prize in city planning for the scientist or researcher
>who has made a substantial contribution to the advancement
>of science and technology.
>
>In 1984, Connoisseur Magazine named him as of 131
>"American Living Monuments." His "Man and Envirnment"
>class at Penn spanned 20 years. He has also been featured as
>host of the CBS series, "The House We Live In" and in his film,
>"Multiply ... and Subdue the Earth." His publications included
>"Design With Nature." "A Quest for Life," "The Once and Future
>Forest" and "To Heal the Earth."
------------------------------
Date: Sat, 10 Mar 2001 13:44:35 +0700
From: yayu <kangaroo@UPANDANG.WASANTARA.NET.ID>
Subject: Re: Alternative for the term Relative abundance
----- Original Message -----
From: Aaron R. Ellingson <are@LAMAR.COLOSTATE.EDU>
To: <ECOLOG-L@UMDD.UMD.EDU>
Sent: Thursday, March 08, 2001 5:56 AM
Subject: Re: Alternative for the term Relative abundance
> Some use "index" or "abundance/density index." "Density" is definitely
> misleading.
>
> However, aside from semantic issues, one should seriously consider Davi
> McNeely's points. The assumption inherent in using a metric that is
> "relative" to true abundance is that this relationship does not vary.
That
> is, the probability of detection is the same across species (unlikely),
> across days (feasible, but what about weather?), across habitats (?),
> across observers (?) etc. One should justify these assumptions, or at
> least examine the sensitivity of results to this assumption, whenever s
ch
> "indices" are used.
>
> Too often we rely on using simple "indices" (and their unexamined
> assumptions) when direct estimation of detection probability is often
> feasible. The suggestion to used marked animals is one such method.
> Others (double-platform observation, distance sampling) are available.
>
> Good luck,
>
> Aaron
>
>
> At 04:06 PM 3/7/01 -0600, David McNeely wrote:
> >There is nothing inheritantly wrong with the term "relative density
" for
> what
> >you are doing. However, I have a couple of questions.
> >
> >1. Is it not likely that since you are working only at the "surfac
,"
> >different species are differentially exposed to your detecting them
> >
> >2. Since you are catching a lot of the scorpions and then returnin
them,
> and
> >then repeating the process at some later time, could you not get a
ore
> >accurate picture of their abundance by some sort of mark-recapture
method?
> >
> >Just a thought.
> >
> >"Christopher A. Brown" wrote:
> >
> >> To all,
> >>
> >> Just as the preference vs selection debate has died down,
have
> >> another semantic question. First, some probably needlessly lon
> >> background...
> >> I am working with a community of scorpions in west Texas a
d have
> >> gathered data on number of individuals per 100 square meters (
he
standard
> >> sized quadrat I use) in both diurnal and nocturnal searches. T
do
these
> >> diurnal counts, I and my coworkers flip all surface objects, m
inly
rocks,
> >> collect scorpions into vials and hold them until all objects i
a
quadrat
> >> have been turned. We then count number of individuals per spec
es and
> >> release them back into the plot. Now, the problem is that we a
e only
> >> finding and counting individuals that are on the "surface" (al
eit
under
> >> something), and not individuals that are below the surface. Th
s, we
are
> >> undoubtedly underestimating true density; this is particurlary
true for
two
> >> burrowing species and for all species during the summer, when
e
suspect
> >> that many individuals crawl into deep cracks in the soil to av
id the
> >> intense daytime heat.
> >> Because we are likely not getting true densities, we have
een
> >> referring to these counts as "relative abundances". However, a
reviewer
of
> >> a manuscript based on these data has suggested that "relative
abundance" is
> >> a poor term. His reasoning is that this term suggests a specie
abundance
> >> relative to the total abundance of all species of scorpions in
the
> >> community. I have been using it as a species abundance relativ
to the
true
> >> (undetermined) abundance of that species. His suggestion is to
replace
> >> "relative abundance" with "density," but "density" has a stron
er
> >> connotation, to me at least, than is implied by my data.
> >> I would appreciate any comments on the relative merits of
he terms
> >> "relative abundance" and "density," and any suggestions for al
ernative
> >> phrases to describe these counts (other than "density of scorp
ons
found on
> >> the surface but below a cover object"!).
> >>
> >> Thanks in advance,
> >> Chris
> >>
> >> Chris Brown
> >> Dept. of Biology
> >> SUNY College at Fredonia
> >> Fredonia, NY 14063
> >> Phone: (716) 673-3284
> >> email: Christopher.Brown@fredonia.edu
> >
> >
> >
> >
> >--
> >===============================================
> >"Are we there yet?" Source unknown
> >
> >See my web page at http://unix.utb.edu/~mcneely
> >===============================================
> >David L. McNeely (Dave)
> >Professor and Graduate Coordinator
> >Biological Sciences
> >The University of Texas at Brownsville
> >80 Fort Brown
> >Brownsville, TX 78520
> >Telephone (956) 544-8289 or 983-7578
> >FAX (956) 983-7115
> >mailto:mcneely@utb1.utb.edu
> >
------------------------------
Date: Sat, 10 Mar 2001 14:35:11 -0500
From: "Christopher A. Brown" <brownc@FREDONIA.EDU>
Subject: Relative Abundance...Thanks!
To all,
I'd like to thank everyone who responded to me or the list
regarding the question of relative abundance versus density. Counting
votes, the results were overwhelmingly against relative abundance: 13 to 3.
Some alternatives suggested were:
number counted aboveground density
observed density number collected
index of abundance index of relative abundance
apparent abundance apparent density
abundance index density index
estimated abundance estimated density
At this point I'm planning to use surface density, although I don't
particularly like the "surface" part since the scorpions are really under
something. However, this seems to me to be the best and most accurate (or,
maybe, least inaccurate) of my choices. I also plan to define exactly what
it is I'm measuring, as per a number of people's suggestions. And I'd
especially like to thank those of you who emphasized the point that the
different "catchabilities" of different species or at different times would
strongly affect any "relative" measures. I plan to discuss this in the
manuscript, rather than having it as an unwritten assumption as it
currently stands.
Finally, several people suggested mark-recapture studies. I didn't
do this (a) because juveniles lose any marks upon molting, and more
importantly (b) I couldn't get out to my study site often enough or for
long enough to do a decent survey of this type. And as for digging up a 100
m^2 plot...well, since it took 4 people two full days with shovels and
post-hole diggers to put 9 pitfall traps in two plots, I think I'll pass!!
Thanks again,
Chris
Chris Brown
Dept. of Biology
SUNY College at Fredonia
Fredonia, NY 14063
Phone: (716) 673-3284
email: Christopher.Brown@fredonia.edu
------------------------------
Date: Sat, 10 Mar 2001 13:52:58 -0600
From: Aaron Turner <a-turner2@NEIU.EDU>
Subject: Re: new pollution tool
This is a multi-part message in MIME format.
------=_NextPart_000_0067_01C0A969.6A382AE0
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charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Thank you everyone for jumping on my over enthusiastic fingers =
concerning the heavy metals. No, heavy metals can not be broken down, =
duh! I meant to say bioaccumulated. This is a subject that I found quite =
promising for remediation of brown fields and such. I got a little =
carried away. Thank you for all of the responses.
Aaron Turner
------=_NextPart_000_0067_01C0A969.6A382AE0
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 5.50.4134.600" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#f0e8d8>
<DIV><FONT face=3DArial size=3D2>Thank you everyone for jum
ing on =
my over=20
enthusiastic fingers concerning the heavy metals. No, heavy metals can =
not be=20
broken down, duh! I meant to say bioaccumulated. This is a subject that =
I found=20
quite promising for remediation of brown fields and such. I got a little =
carried=20
away. Thank you for all of the responses.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Aaron Turner</FONT></D
V></BODY></HTML>
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------------------------------
Date: Sat, 10 Mar 2001 09:19:23 -0800
From: "D. Mckenzie" <dmck@U.WASHINGTON.EDU>
Subject: Re: index of productivity
I'm not sure what you mean by user-friendly, but you could try the
NUmerical Terradynamics Simulation Group at U. Montana. They have
produced gridded daily estimates from satellite data.
_______________________________________________________________________
DON MCKENZIE
College of Forest Resources, Box 352100
University of Washington
Seattle, WA 98195
206.543.2789
dmck@u.washington.edu
_______________________________________________________________________
On Fri, 9 Mar 2001, Steyermark, Anthony wrote:
> i am interested in obtaining an index of productivity for various islan
s,
> countries, and continents, averaged over a year. i have tried various
> government sites (such as ncdc and noaa), but can only find precipitati
n
> data. does anyone know of a website where productivity data are availab
e in
> a user friendly format.
>
> thank you for any help
> sincerely,
>
> anthony steyermark
>
>
>
>
> Anthony Steyermark
> Department of Physiology
> UCLA School of Medicine
> Los Angeles, CA 90095-1751
>
> Phone: (310) 825-6076
> Fax: (310) 206-5661
> email: asteyermark@mednet.ucla.edu
> url: http://www.bol.ucla.edu/~asteyer/
>
------------------------------
End of ECOLOG-L Digest - 9 Mar 2001 to 10 Mar 2001
**************************************************
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From: Automatic digest processor <LISTSERV@UMDD.UMD.EDU>
Subject: ECOLOG-L Digest - 7 Mar 2001 to 8 Mar 2001
To: Recipients of ECOLOG-L digests <ECOLOG-L@UMDD.UMD.EDU>
Status: R
There are 29 messages totalling 1595 lines in this issue.
Topics of the day:
1. Alternative for the term Relative abundance (2)
2. Working with bats
3. summer undergrad. field bio. job
4. Seeking wetland consultant for Calif. field station
5. Radio Tracking (2)
6. Polish Journal of Ecology - actual information and issue contents
7. Summer School 2001
8. Identification
9. Job: project assistants, deciduous forest ecology, NY
10. Job: seasonal, amphibian survey, CO and WY
11. Job: summer research opportunities, IES, birds and nest predators
12. SD Online new listings
13. Presentation Graphics (2)
14. Advice needed on forest buffer zone
15. Total Nitrogen, crude protein, or fiber?
16. Canadian looking for work?
17. job announcements
18. New pollution tool (7)
19. fungal bioremediation
20. Ohio prairie pollen studies
----------------------------------------------------------------------
Date: Wed, 7 Mar 2001 21:13:31 -0800
From: Timothy Brook Smith <timsmith@UCDAVIS.EDU>
Subject: Re: Alternative for the term Relative abundance
Matthew...
Some one once pointed out that the late great ecologist Frederic Clements le
his scientific nomenclature become so pretentious and jargon-ridden that one
of
his articles referred to a common shovel as a "geotome". Surely a spade is
still a spade, but here we are still like moths drawn to the semantic flame
(fire ...blaze...conflagration...).
As you state, your collection method (every collection method) is biased. T
us
you cannot report actual numbers of individuals occupying an area or volume.
For this reason the terms "density" and simple "abundance" are emphatically
wrong. You reviewer should be tossed into the lower levels of the semantic
inferno.
Whatever the accepted convention, I am sure I have seen others use "relative
abundance" the way you have used it here. With one fewer syllable you also
ave
at your disposal "number collected". This term avoids jargon and is accurat
and unambiguous (with hints of tangerine and oak!).
As our new president knows, it requires great "strategery" to communicate we
l.
Best of luck!
Tim
------------------------------
Date: Thu, 8 Mar 2001 08:07:11 -0000
From: Ama Dablam <acampanella@HOTMAIL.COM>
Subject: Working with bats
Does anybody in the list know someone working with bats?
Seem me to remember that some weeks ago there was a job announcement seeking
a bat technician or something else. If someone could help, please reply me.
Many Thanks for any useful news.....
Best regard
Andrea
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
------------------------------
Date: Wed, 7 Mar 2001 19:45:31 -0600
From: Joe Gathman <gathmanj@UWW.EDU>
Subject: Alternative for the term Relative abundance
Chris,
I agree with the others that the term "relative abundance" doesn't apply to
your measures. It is not the typical usage with which I am familiar:
(abundance of species i)/(abundance of all species). I use this measure
regularly so your usage seems foreign to me.
Also, the term "relative" implies a ratio, which you don't have. The ratio
that you seem to have in mind is: (abundance of species i above
ground)/(total abundance of species i), with the implication that the ratio
is a constant (which is doubtful, as others have pointed out).
Why not call your measure what it is: above-ground density (I DO think
density is appropriate, because you are counting abundance in a given
area)? I think the only way to safely extrapolate it to total density is
to quantify the bias for each species, which would probably require a
separate study in itself.
Joe Gathman
UW Whitewater
>To all,
>
> Just as the preference vs selection debate has died down, I have
>another semantic question. First, some probably needlessly long
>background...
> I am working with a community of scorpions in west Texas and have
>gathered data on number of individuals per 100 square meters (the standa
d
>sized quadrat I use) in both diurnal and nocturnal searches. To do these
>diurnal counts, I and my coworkers flip all surface objects, mainly rock
,
>collect scorpions into vials and hold them until all objects in a quadra
>have been turned. We then count number of individuals per species and
>release them back into the plot. Now, the problem is that we are only
>finding and counting individuals that are on the "surface" (albeit under
>something), and not individuals that are below the surface. Thus, we are
>undoubtedly underestimating true density; this is particurlary true for
wo
>burrowing species and for all species during the summer, when we suspect
>that many individuals crawl into deep cracks in the soil to avoid the
>intense daytime heat.
> Because we are likely not getting true densities, we have been
>referring to these counts as "relative abundances". However, a reviewer
f
>a manuscript based on these data has suggested that "relative abundance"
is
>a poor term. His reasoning is that this term suggests a species abundanc
>relative to the total abundance of all species of scorpions in the
>community. I have been using it as a species abundance relative to the t
ue
>(undetermined) abundance of that species. His suggestion is to replace
>"relative abundance" with "density," but "density" has a stronger
>connotation, to me at least, than is implied by my data.
> I would appreciate any comments on the relative merits of the terms
>"relative abundance" and "density," and any suggestions for alternative
>phrases to describe these counts (other than "density of scorpions found
on
>the surface but below a cover object"!).
>
>Thanks in advance,
>Chris
>
>Chris Brown
>Dept. of Biology
>SUNY College at Fredonia
>Fredonia, NY 14063
>Phone: (716) 673-3284
>email: Christopher.Brown@fredonia.edu
>
------------------------------
Date: Wed, 7 Mar 2001 21:19:00 -0600
From: Francis Russell <LelandRussell@MSN.COM>
Subject: summer undergrad. field bio. job
------=_NextPart_001_0000_01C0A74C.3AADDDC0
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Biology Field Assistant Job, 1 May-15 August 2001
We seek one highly motivated upper class undergraduate student inter=
ested in experience in field biology to become involved in a project to e=
valuate the effect of an invasive biological control insect on native pla=
nt species. The project involves both a quantitative survey of the plant=
s and their insects and two experiments to understand the mechanisms unde=
rlying the consequences of the host range expansion of the biocontrol wee=
vil, Rhinocyllus conicus, onto native thistle species (Cirsium spp.) in p=
rairie grasslands.
The study is designed to answer three fundamental questions: 1) how =
are seed losses of native thistles to exotic seed-feeding weevils related=
to surrounding ecological conditions?; 2) are thistle co-occurrence and =
observed levels of insect impact causally related?; and, 3) can ecologica=
l factors (such as the presence, density and identity of surrounding this=
tle species) be manipulated to minimize negative impacts on rare native s=
pecies?
The position is available for 3.3 months ($1,500/mo + great experien=
ce!) For more information, contact Dr. Svata M. Louda, Dr. Tatyana A. Ra=
nd or Dr. Leland Russell, School of Biological Sciences, University of Ne=
braska at Lincoln (SLouda@UNL.edu, 402-472-2763; tatyana_rand@hotmail.com=
; LelandRussell@msn.com).
Application: To apply please submit a resume, description of interests an=
d experience in biology, and have two letters of recommendation sent to D=
r. Svata M. Louda, School of Biological Sciences, University of Nebraska,=
Lincoln NE 68588-0118 by March 23, 2001. Position will remain open unti=
l an appropriate candidate is found. The University of Nebraska is commi=
tted to EEO/AA/ADA.
------=_NextPart_001_0000_01C0A74C.3AADDDC0
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<HTML><BODY STYLE=3D"font:10pt verdana; border:none;"><DIV al
gn=3Dcenter=
><STRONG>Biology Field Assistant Job</STRONG>, 1 May-15 Augus
2001</DIV>=
<DIV align=3Dcenter> </DIV> <DIV align=3Dleft>
nbsp; &nb=
sp; We seek one highly motivated upper class undergraduate student intere=
sted in experience in field biology to become involved in a project to ev=
aluate the effect of an invasive biological control insect on native plan=
t species. The project involves both a quantitative survey of the p=
lants and their insects and two experiments to understand the mechanisms =
underlying the consequences of the host range expansion of the biocontrol=
weevil, <EM>Rhinocyllus conicus</EM>, onto native thistle speci
s (<EM>C=
irsium </EM>spp.) in prairie grasslands.</DIV> <DIV align=3Dl
ft> </=
DIV> <DIV align=3Dleft> The study is design
d to =
answer three fundamental questions: 1) how are seed losses of native this=
tles to exotic seed-feeding weevils related to surrounding ecological con=
ditions?; 2) are thistle co-occurrence and observed levels of insect impa=
ct causally related?; and, 3) can ecological factors (such as the presenc=
e, density and identity of surrounding thistle species) be manipulated to=
minimize negative impacts on rare native species?</DIV> <DIV align
3Dlef=
t> </DIV> <DIV align=3Dleft> The
position is=
available for 3.3 months ($1,500/mo + great experience!) For more =
information, contact Dr. Svata M. Louda, Dr. Tatyana A. Rand or Dr. Lelan=
d Russell, School of Biological Sciences, University of Nebraska at Linco=
ln (<A href=3D"mailto:SLouda@UNL.edu">SLouda@UNL.edu</A>, 402-47
-2763; <=
A href=3D"mailto:tatyana_rand@hotmail.com">tatyana_rand@hotmail.com</A>
; =
<A href=3D"mailto:LelandRussell@msn.com">LelandRussell@msn.com</A>
).</DIV=
> <DIV align=3Dleft> </DIV> <DIV align=3Dleft><
TRONG>Application:</=
STRONG> To apply please submit a resume, description of interests and exp
erience in biology, and have two letters of recommendation sent to Dr. Sv=
ata M. Louda, School of Biological Sciences, University of Nebraska, Linc=
oln NE 68588-0118 by March 23, 2001. Position will remain open unti=
l an appropriate candidate is found. The University of Nebraska is =
committed to EEO/AA/ADA.</DIV> <DIV align=3Dleft> </DIV>
</BODY></HTM=
L>
------=_NextPart_001_0000_01C0A74C.3AADDDC0--
------------------------------
Date: Wed, 7 Mar 2001 17:41:50 -0800
From: be cool <thamnosma1@YAHOO.COM>
Subject: Seeking wetland consultant for Calif. field station
Hi all --
I'm the manager of the Bernard Biological Field
Station of the Claremont Colleges in Claremont
California. The Field Station, located in the San
Gabriel Valley in the Los Angeles area, covers
approximately 90 acres of coastal sage scrub and oak
woodland vegetation. We also maintain a 1-acre or so
lake/wetland in which cattails have been allowed to
take over most of the shoreline.
We are in need of someone to assist us in controlling
the cattails and restoring parts of the shoreline as
habitat for additional species...only coots now make
the lake a full-time residence, but many others make
temporary use of it.
In addition, we are looking for any group or firm with
some experience in cattail removal for contract
hiring. Please note that this is an artificial lake
with a liner.
Kindly contact me by email or at 909/624-6661.
Thanks.
Stephen Dreher
__________________________________________________
Do You Yahoo!?
Get email at your own domain with Yahoo! Mail.
http://personal.mail.yahoo.com/
------------------------------
Date: Thu, 8 Mar 2001 12:20:14 -0800
From: Aaa Bbb <oxf01@MAXMAIL.CO.UK>
Subject: Radio Tracking
Hello everyone,
Could anyone recomend some texts on the subject of radio tracking of
mamals? Both the basic principles and also the data collection. All
sugestions appreciated.
Thanks
Michael Bolton
------------------------------
Date: Thu, 8 Mar 2001 12:38:02 +0100
From: Instytutu Ekologii PAN <ekolog@WARMAN.COM.PL>
Subject: Polish Journal of Ecology - actual information and issue contents
from: Institute of Ecology, Polish Academy of Sciences
05-092 Lomianki Poland
e-mail:ekolog@warman.com.pl
POLISH JOURNAL OF ECOLOGY ( Pol.J.Ecology )publishes original scientific =
papers dealing with all aspects of ecology: both fundamental and applied,=
physiological ecology, ecology of population, community, ecosystem,
landscape as well as global ecology.
STILL AVAILABLE No.3 and 4 for 2000 and SUPPLEMENT 2000 INCLUDING SPECIAL=
ISSUES ON " BANK VOLE BIOLOGY: RECENT ADVANCES IN THE POPULATION BIOLOGY =
OF
A MODEL SPECIES"(guest editors: Gabriela Bujalska and Lennart Hansson
Information on contents of current issues as well as the abstracts and
adresses of authors are available on web page of Institute of Ecology
Polish Academy of Sciences : www.ekologia-pan.home.pl/PolJEcol.htm
NOW AVAILABLE!
POLISH JOURNAL OF ECOLOGY NR.1/2001
CONTENTS:
Standard papers
Lidia DZIERZBICKA-G=A3OWACKA - Numerical simulations of marine zooplankto=
n
dynamics and its interaction with other system
components.......................
Zdzis=B3aw KAJAK and Pawe=B3 PRUS - Field experiment reveals no relation =
between substrate composition and Chironomus abundance
................................
Krassimira ILIEVA-MAKULEC - A comparative study of the life strategies of=
two bacterial-feeding nematodes under laboratory conditions. I. Influence=
of culture conditions on selected life-history parameters of Acrobeloides=
nanus (de Man 1880) Anderson 1968 and Dolichorhabditis dolichura (Schneid=
er
1866) Andrassy
1983.....................................................................=
.
....
Stanis=B3aw STANUSZEK - The role of epigeic macroarthropod predators in t=
he
regulation of abundance and biomass of saprophagous nematodes on grass
litter of
meadow...................................................................=
.
....
Werner ULRICH - Spatial scaling laws and weight dependent distributions i=
n
guilds of Diptera and parasitic
Hymenoptera.....................................
Werner ULRICH - Species area relations generated by theoretical relative =
abundance distributions: parameter values, model fit and relation to
species saturation
studies..............................................................
Aleksander H. K=CADRA and Tomasz D. MAZGAJSKI - Factors affecting anvils =
utilization by great spotted woodpecker Dendrocopos
major.......................
Short contributions
W=B3adys=B3awa WOJCIECHOWSKA and Micha=B3 SOLIS - Small scale distributio=
n and
composition of phytoplankton in a shallow
lake..................................
Werner ULRICH - On the scale dependence of
evenness............................
The papers as well as all correspondence should be mailed on the address:=
Prof. dr Anna Hillbricht-Ilkowska
Managing Editor, Polish Journal of Ecology (Ekologia Polska)
Dziekanow Lesny near Warsaw, 05-092 Lomianki, Poland
Fax (48 22) 751 31 00, e-mail: ahillbricht@post.pl
Subscription orders for the current issues of Pol. J. Ecol as well as fo=
r
back and archival issues are available directly through:
Library of Institute of Ecology
Polish Academy of Sciences
Dziekanow Lesny, 05-092 Lomianki, Poland
Fax (48 22) 751 31 00
e-mail: ekolog@warman.com.pl
The payment should be made directly by cheque mailed on address =
as
above or by transfer to:
Wielkopolski Bank Kredytowy
WBK S.A. O/Warszawa 350004-2017
The current price for an yearly issue in 2000 is 135 US dollars (plus
porto)
------------------------------
Date: Thu, 8 Mar 2001 11:20:45 +0100
From: ODVL Programme at AINova <odvl@NETRA.AINOVA.SK>
Subject: Summer School 2001
Dear Madam/Sir,
Open, Distance and Vocational Learning Programme at Academia Istropolitan=
a
Nova would like to inform you about its Environmental Management in a
European Perspective Summer School 2001. The Summer School will be organi=
sed
from July 16 till August 3, 2001. In its three weeks duration, the Summer
School will bring to its participants profound knowledge of the subject o=
f
environmental management with focus on its European implementation. The
whole Summer School will be very practically oriented with number of case
studies, mutual interaction and role-playing. The main subjects of the
Summer School taught by recognized European professionals will be:
1. Principles and Methods in Environmental Management
2. Management of Environmental Projects
3. Economics for Environmental Management
The Summer School is targeted on young university teachers and PhD. stude=
nts
with teaching responsibilities. One of the aims of the Summer School is a=
lso
to promote implementation of the environmental management into participan=
ts'
own curriculum. For more information please visit the website of the Summ=
er
School on the address
http://www.ss2001.sk.
Dear Madam/Sir, we hope our proposal will take your interest and the
introduced Summer School will find its place in your professional growth.=
We
are looking forward to welcome you on the event. We would also strongly
appreciate if you could pass this information to anyone interested in the
subject of the Environmental Management in a European Perspective Summer
School 2001.
Open, Distance and Vocational Learning Programme (ODVL)
Academia Istropolitana Nova
Prostredn=E1 13
P.O. Box 19
900 21 Sv=E4t=FD Jur
Slovakia
Tel.: +421-7-4497 0453
Fax: +421-7-4497 0454
E-mail: odvl@ainova.sk
Web: http://www.ss2001.sk
------------------------------
Date: Thu, 8 Mar 2001 11:22:49 -0400
From: Gary Corbett <Gary_Corbett@PCH.GC.CA>
Subject: Identification
I was wondering if someone can help me identify a large Costa Rican spider?
have a good photo that can be sent via email. Thankyou
Gary Corbett
------------------------------
Date: Thu, 8 Mar 2001 10:59:52 -0500
From: "David W. Inouye" <di5@umail.umd.edu>
Subject: Job: project assistants, deciduous forest ecology, NY
Job Announcement, Spring/Summer 2001
Project Assistants needed for research on the ecology of deciduous forests
in southeastern New York State. Research focuses on the dynamics of
mammalian communities and the relationship between mammals and Lyme disease
ecology, tree seed survival, and forest composition. Duties include
live-trapping small and medium-sized mammals, sampling abundance of ticks,
tree-mapping, and laboratory assays of tick infection with the Lyme-disease
bacterium. Work is conducted in small teams within forest sites at the
Institute of Ecosystem Studies in Millbrook, NY. Field research involves
early morning and late afternoon hours and moderately strenuous activities.
Prior experience with live-trapping or forest ecology is highly desirable.
Consideration of applications will begin on March 12, 2001. Please submit a
letter of application, a resume, and the names, phone numbers, and email
addresses of three professional references to:
Richard S. Ostfeld, Ph.D.
Scientist
Institute of Ecosystem Studies
Box AB, 65 Sharon Turnpike
Millbrook, NY 12545
ROstfeld@ecostudies.org
Richard S. Ostfeld, Ph.D.
Scientist
Institute of Ecosystem Studies
Box AB, 65 Sharon Turnpike
Millbrook, NY 12545, U.S.A.
phone: 845 677-5343
fax: 845 677-5976
email: Rostfeld@ecostudies.org
------------------------------
Date: Thu, 8 Mar 2001 11:00:59 -0500
From: "David W. Inouye" <di5@umail.umd.edu>
Subject: Job: seasonal, amphibian survey, CO and WY
Dear Listmembers:
Seasonal research technicians needed to survey for amphibians on DOI
lands in Colorado and Wyoming (including Great Sand Dunes National Pa=
rk,
BLM lands in southwestern and eastern Wyoming, northern Colorado and
Florissant Fossil Beds). Because positions will be administered as a
student contract, applicants must have been enrolled as a student at =
a
university within the last year (note, this does not preclude recent
graduates). Please forward resumes including references electronicall=
y
(MS Word preferred) to Erin Muths at: Erin_Muths@usgs.gov Please resp=
ond
no later than 23 March 2001.
Project Description: The goal of this project is to survey for amphib=
ians
(present / not present data) in Colorado and Wyoming. Technicians wi=
ll
participate in all aspects of data collection for the study. The stu=
dy
will begin on (approximately) May 1, 2001, and will end on
(approximately) mid to late August, 2001. Exact starting and ending d=
ates
will be negotiated with the student and may be flexible. Fieldwork wi=
ll
be based out of Fort Collins, CO and the student will be responsible =
for
finding his or her own accommodation in Fort Collins. There will be
substantial time spent in camping and in the field (tentatively 10 da=
ys
in the field, including driving time and 4 days off). Camping per die=
m
will also be paid. Transportation to and from the field and
transportation while in the field will be supplied by the project.
Description of Student Services: The student will participate in the
collection of survey data on amphibians on DOI lands in Colorado and
Wyoming in a team of 4 persons. This may entail hikes of up to 10 mil=
es
per day over rough terrain carrying a backpack (35 ? 50 pounds). The
project will entail surveying specific areas using Visual Encounter
Survey methods with attention to detail and consistent methodology
important. Field crews will collect weather and site data, and will e=
nter
data onto forms in the field.
Level of Knowledge or Skills: The student is required to have or to b=
e
working toward a Bachelor's or Master's degree in wildlife biology,
ecology, or a related discipline, must be able to identify to species=
the
amphibians (adult, larval and eggs forms) present in the survey areas=
or
willing to learn quickly. Must be physically capable of hiking and
carrying the loads listed above. Navigation and map reading skills
helpful and applicant MUST get along well in small groups. First aid =
is
required but fulfillment of this requirement may be negotiated with t=
he
student. A valid driver's license is required and ability to drive 4W=
D
vehicles also helpful.
Working Conditions: Environmental conditions may range from blizzards=
at
higher elevations to extremely hot and dry conditions at Great Sand D=
unes
National Park.
Physical hazards include intense sun exposure, dehydration,
thunderstorms, hailstorms and blizzards.
Pay Scale: BA/BS + 1 yr grad school, $15/hr; completed BA/BS, $12/hr;=
2
or more years of college, $11/hr.
Erin Muths, Ph.D. Phone: 970-226-9474
U.S. Geological Survey Fax: 970-226-9230
Midcontinent Ecol. Science Ctr. Email: Erin_muths@usgs.gov
4512 McMurry Ave. Internet: www.mesc.usgs.gov
Fort Collins, CO 80525=
------------------------------
Date: Thu, 8 Mar 2001 11:02:04 -0500
From: "David W. Inouye" <di5@umail.umd.edu>
Subject: Job: summer research opportunities, IES, birds and nest predators
Summer Research Opportunities at the Institute of Ecosystem Studies (IES),
Millbrook, NY. Research focuses on breeding songbird populations and their
mammalian nest predators. Woodland rodents are primarily responsible for
preying on the nest contents of songbirds and subsequently affecting their
reproductive success and population growth. In turn, rodent abundance
during the spring is determined by the periodic production of huge
quantities of acorns (or the failure of such masting events) in the previous
fall. We are currently investigating this interplay of oaks, rodents, and
songbirds using field experiments and monitoring natural populations.
Activities include nest searching and monitoring, foraging experiments with
small mammals, mist-netting and bird banding, and census of songbirds
populations using point counts. Research begins mid-May and continues
through the end of July and possibly later.
Must be willing to work early hours and be able to cope with rigors of field
work. Familiarity with local songbird species and own transportation are
helpful. Housing at the Institute may be available.
For more information, please contact Dr. Ken Schmidt at 413-597-4508, or to
apply, send a letter of application, current resume, and the names, phone
numbers and email addresses of three professional references to
Kenneth.A.Schmidt@Williams.edu by March 15th.
Richard S. Ostfeld, Ph.D.
Scientist
Institute of Ecosystem Studies
Box AB, 65 Sharon Turnpike
Millbrook, NY 12545, U.S.A.
phone: 845 677-5343
fax: 845 677-5976
email: Rostfeld@ecostudies.org
------------------------------
Date: Thu, 8 Mar 2001 16:03:08 -0800
From: SD Online <susdev@EUROFOUND.IE>
Subject: SD Online new listings
Dear Reader,
After a short break SD ONLINE is back with its free regular updates
on sustainable development initiatives around the world.
NEW CONFERENCES
We have just added 39 New conferences to the databases - an overview
is provided at the end of this message.
UPDATING SD ONLINE
During March two further updates to the databases are planned -
covering Sustainable Development Networks, Tools, Training and SME
Support Initiatives.
NEW SD ONLINE URL (WWW ADDRESS)
Please change your book marks to http://www.sd-online.net to access SD ONLI
E.
The old URL ( http://susdev.eurofound.ie ) still works for the moment.
PROMOTE YOUR SITE
'Submit' your own SD web site (and support activities such as
eco-design, industrial ecology, LCA, etc) or recommend one to SD
ONLINE. It will be reviewed by our team and be available to the
thousands of visitors to SD ONLINE every month.
WEBSITE DEVELOPMENT: SD-ONLINE is designed and developed by EDEN B.V.
on behalf of the European Foundation for the Improvement of Living
and Working Conditions (an autonomous publicly funded agency of the
European Union).
Learn more about EDEN's database driven websites and how EDEN can
help you. For example, publish and edit YOUR OWN NEWSLETTER as and
when you want without knowing a single line of HTML.
Email: eden@antenna.nl
39 NEW CONFERENCE LISTINGS (Go: http://www.sd-online.net )
18th Conference on Passive and Low Energy Architecture -
=46lorian=F3polis, Brazil
4th Toulouse Conference on Environment and Resource Economics -
Toulouse, France
5th Nordic Environmental Research Conference - Aarhus, Denmark
7th International Interdisciplinary Conference on the Environment -
San Francisco, U.S.A.
A Seminar "Biopolymers: Packaging - a new generation" - Birmingham,
United Kingdom
BAGIS'01 - Baltic Sea Region - Stockholm, Sweden
Baltic Meeting Point - Uppsala, Sweden
Bridging Sustainability - research and sector integration - Stockholm, Swede
Building Energy 2001 - Medford, MA, U.S.A
Climate Change in the Circumpolar North: Summit and Sustainable
Technology Exposition - Whitehorse, Canada
Climate Conference 2001 - Utrecht, The Netherlands
Commission on Sustainable Development, 9th Session - New York, U.S.A.
Creating an All-Energy Future - Renewables and Diversification -
Aberdeen, United Kingdom
Delhi Sustainable Development Summit - New Delhi, India
Delhi Sustainable Development Summit - New Delhi, India
Detecting Environmental Change - London, United Kingdom
Durability of Building Materials and Components - Brisbane, Australia
ECO-INFORMA 2001 - Environmental Risks and the Global Community -
Argonne, U.S.A.
ENCORE 2001 - Villach, Austria
Environment 2001 - Tel Aviv, Israel
Future Home: Sustainable Housing in the 21st Century - Dundee, Scotland ,
UK
Global Change and Sustainable Development in Southeast Asia - Chiang
Mai, Thailand
Global Young Greens 2001 - Sydney, Australia
Green Chemistry: Sustainable Products and Processes - Swansea, Wales,
United Kingdom
GW12 - Global Warming International Conference & Expo - Cambridge,
United Kingdom
HDP-A Symposium - Graz, Austira
International Emission Inventory Conference: One Atmosphere, One
Inventory, Many Challenges - Denver, Colorado, U.S.A.
Learning for the Future - Seattle, U.S.A.
Local Action for Global Climate Protection - Vaxjo, Sweden
Making Sustainable Regional Development Visible - Leibnitz, Austria
New Partnerships for the 21st Century - 2nd International Conference
- "Business & Municipality" - Bremen, Germany
OECD Forum 2001 - Paris, France
Renewable energy 2002 - Cologne, Germany
Sustain 2001 - The World Sustainable Energy Exhibition and Conference
- Amsterdam, The Netherlands
The 13th International Conference on Engineering Design - Glasgow,
United Kingdom
The Human Dimensions of Global Change - Rio de Janeiro, Brazil
The Second Annual Global Conference on Environmental Taxation Issues,
Experience and Potential - Vancouver, Canada
Towards Sustainable Product Design 6 - Amsterdam, The Netherlands
World Sustainable Energy Day 2001 - Linz, Austria
------------------------------
Date: Thu, 8 Mar 2001 16:03:55 -0000
From: Ama Dablam <acampanella@HOTMAIL.COM>
Subject: Re: Radio Tracking
White, G.C. & Garrott, R.A. 1990. Analysis of wildlife radio-tracking data.
Academic Press, San Diego
This is a good and complete guide to radio tracking, maybe is a little bit
old, I don't know if there is something better or newer.
Best luck
Andrea Campanella
>Hello everyone,
>
>Could anyone recomend some texts on the subject of radio tracking of
>mamals? Both the basic principles and also the data collection. All
>sugestions appreciated.
>
>Thanks
>
>Michael Bolton
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
------------------------------
Date: Thu, 8 Mar 2001 11:26:46 -0500
From: Steve Clough <Stephen_Clough@UML.EDU>
Subject: Presentation Graphics
Can any scientists on this listserver provide me with a good
recommendation for a computer program or CD for obtaining
"environmental" graphics for Powerpoint presentations (e.g.,
clip-art/wallpaper of wetlands, macroinvertebrates, fish, etc.)? Most
of them are very expensive and aren't very explicit on what the programs
contain. Thank you for any leads you can provide!
------------------------------
Date: Thu, 8 Mar 2001 12:24:49 -0500
From: Linda Fink <lfink@SBC.EDU>
Subject: Advice needed on forest buffer zone
I need advice on the minimum width of a forest buffer zone:
Sweet Briar College has a fully-mapped transect, 40m x 1000m, through a
mature hardwood forest that has not been cut in more than 70 years. We
have tree species, DBH, location and condition in the late-1980's and
again in 1999, for more than 1600 individually tagged trees greater than
10cm DBH. This is a long-term research transect that will be remapped
at approximately 10-year intervals.
The College is considering selective thinning (removal of 35-50% of the
canopy) of the forest in which the transect lies. Our two options are
to allow thinning within the transect, or maintain a buffer around it of
sufficient width that the dynamics in the transect will be unaffected by
the thinning. My preference is to keep the transect intact, and
establish new study plots within other areas that will be thinned.
How wide should an uncut buffer be, to protect the transect?
One piece of advice I have received is to keep a buffer that is
approximately as wide as the trees are high (30-40m). Can anyone
direct me to research reports or management plans that provide a good
evaluation of buffer sizes?
Please respond directly to me at:
lfink@sbc.edu
-- Linda Fink
Dept. of Biology, Sweet Briar College
Sweet Briar VA 24595
------------------------------
Date: Thu, 8 Mar 2001 09:36:04 -0800
From: Parrot Head <harding@PWA.ACUSD.EDU>
Subject: Re: Presentation Graphics
www.clipart.com
*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+*+
+
On Thu, 8 Mar 2001, Steve Clough wrote:
> Can any scientists on this listserver provide me with a good
> recommendation for a computer program or CD for obtaining
> "environmental" graphics for Powerpoint presentations (e.g.,
> clip-art/wallpaper of wetlands, macroinvertebrates, fish, etc.)? Most
> of them are very expensive and aren't very explicit on what the program
> contain. Thank you for any leads you can provide!
>
------------------------------
Date: Thu, 8 Mar 2001 12:20:01 -0500
From: Justin Brashares <justinb@INTERCHANGE.UBC.CA>
Subject: Total Nitrogen, crude protein, or fiber?
Greetings folks!
I'm studying the relationship between several ecological variables and
dispersion, mating system, and fitness in two species of African antelope.
Specifically, I'm examining the influence of diet quality, predation,
habitat complexity, sex ratio, and density, in natural and controlled
(experimental) conditions. For diet quality, I have been provided the total
nitrogen, percent crude protein, and percent fiber for grass samples
collected on antelope territories. Unfortunately, and embarrassingly, I
don't have the background to know which of these measures says the most
about diet quality for a small ruminant and, therefore, is most important to
include in analyses.
Can anyone help me out with their personal knowledge and/or useful
references? If it's of any help, the samples analyzed were comprised only of
the green leaves that these antelope were observed to select.
Thanks,
Justin
**********************
Centre for Applied Conservation Biology
University of British Columbia
email justinb@interchange.ubc.ca
------------------------------
Date: Thu, 8 Mar 2001 12:43:53 -0500
From: Jennifer Davidson <jen.davidson@UTORONTO.CA>
Subject: Canadian looking for work?
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Hi everyone,
Been noticing there are tons of field jobs this year on the list, so I =
wanted to share a useful piece of info that some may not be aware of:
If you're a Canadian citizen and hold a bachelors degree you can work in =
the US-=20
the visa you get is issued at the border, all you need is a brief letter =
from your employer stating the nature, location and pay rate of the job, =
the dates and why you are qualified.
I've spent a few summers in various parts of the US doing fieldwork, =
it's great a way to travel and work at the same time. Suggest calling =
the American consulate for more details.
Jennifer Davidson
Cooperative Freshwater Ecology Unit
Sudbury, ON=20
------=_NextPart_000_004D_01C0A7CD.6E9D22E0
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2614.3500" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Hi everyone,</FONT></D
V>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Been noticing there are tons of
field =
jobs this=20
year on the list, so I wanted to share a useful piece of info that some =
may not=20
be aware of:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>If you're a Canadian citizen an
hold a =
bachelors=20
degree you can work in the US- </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>the visa you get is issued at t
e =
border, all you=20
need is a brief letter from your employer stating the nature, location =
and pay=20
rate of the job, the dates and why you are qualified.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I've spent a few summers in var
ous =
parts of the US=20
doing fieldwork, it's great a way to travel and work at the same time. =
Suggest=20
calling the American consulate for more details.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Jennifer Davidson</FONT><
/DIV>
<DIV><FONT face=3DArial size=3D2>Cooperative Freshwater Ecology
Unit</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Sudbury, =
ON </FONT></DIV></BODY></HTML>
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------------------------------
Date: Thu, 8 Mar 2001 13:14:44 -0600
From: pam_pietz@USGS.GOV
Subject: job announcements
PLEASE NOTE that these positions are now open for applications at the
website listed in the message below. I've also listed the job
announcement numbers for each position and grade-level (pay scale). If=
you're searching the system by "LOCATION", these are all listed under
"Sheldon, ND." You must apply separately for each job announcement f=
or
which you wish to be considered. (To maximize the amount of informati=
on
you can submit in the "resume" box, you can convert your resume to a te=
xt
file to reduce margins and other blank areas.)
RADIO-TRACKERS and NEST-SEARCHERS NEEDED for COWBIRD STUDY:
We are hiring 8 Biological Science Technicians for a study of brown-hea=
ded
cowbirds in the Sheyenne National Grassland in southeastern North Dakot=
a
from May to August 2001. We need a 4-person crew to capture, tag, and
radio-track female cowbirds to determine habitat use and home range. W=
e
also need a 4-person crew to search for and monitor grassland passerine=
nests to determine levels of cowbird parasitism and nest success.
Applicants should have some combination of the following: (1) experienc=
e
capturing and handling passerines and locating animals with ground-base=
d
telemetry, (2) experience finding passerine and/or grassland bird nests=
and
monitoring their fates, (3) ability to identify passerines that breed i=
n
the northern grasslands by sight and sound, (4) experience using maps,
compasses, and GPS units, and ability to accurately map locations. All=
applicants must be in good physical condition, possess good communicati=
on
and organizational skills, and work well both independently and as part=
of
a team. U.S. citizenship and a valid State driver's license are requir=
ed.
Positions will last from 11 to 15 weeks and will likely start between t=
he
end of April and mid-May and end in late July or early August 2001. Pa=
y
levels, depending on experience and responsibility, will range from $10=
to
$14 per hour. YOU MUST APPLY ELECTRONICALLY at
http://www.usgs.gov/ohr/oars/index.html for EACH of the job announceme=
nts
(listed below) for which you wish to be considered. APPLICATIONS DUE =
by
MARCH 23, 2001.
RADIO-TRACKING CREW LEADER: 1 opening,
job announcement #USGS-2001-1178
RADIO-TRACKING CREW: 3 openings,
job announcement #USGS-2001-1176
NEST-SEARCHING CREW LEADER: 1 opening,
job announcement #USGS-2001-1182 (for GS-6)
job announcement #USGS-2001-1183 (for GS-7)
NEST-SEARCHING CREW: 3 openings,
job announcement #USGS-2001-1179 (for GS-4)
job announcement #USGS-2001-1181 (for GS-5)
If you need further information about the job responsibilities or study=
objectives, please contact:
Pam Pietz, USGS, Northern Prairie Wildlife Research Center, 8711 37th S=
t.
SE, Jamestown, ND 58401, 701-253-5505, pam_pietz@usgs.gov
If you need further information about the application process, please
contact:
Mary Owens, USGS, Denver Federal Center, 303-236-9576, mtowens@usgs.gov=
=
------------------------------
Date: Thu, 8 Mar 2001 14:41:43 -0600
From: Aaron Turner <a-turner2@NEIU.EDU>
Subject: Re: New pollution tool
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Yes, the metals are concentrated in the biomass of the plants. The =
plants are then harvested and can be broken down into a volume that is =
much less that if the entire site was dug up, placed into 55 gallon =
drums and placed into a hazmat site. Which seems more logical. Fungi =
have the ability to completely break down heavy metals and hazardus =
materials. A mycologist from Washington state is working with the =
mililtary and other large companies using this awesome, quick technique.
Aaron Turner
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charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 5.50.4134.600" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#f0e8d8>
<DIV><FONT face=3DArial size=3D2>Yes, the metals are concentrate
in the =
biomass of=20
the plants. The plants are then harvested and can be broken down into a =
volume=20
that is much less that if the entire site was dug up, placed into 55 =
gallon=20
drums and placed into a hazmat site. Which seems more logical. Fungi =
have the=20
ability to completely break down heavy metals and hazardus materials. A=20
mycologist from Washington state is working with the mililtary and other =
large=20
companies using this awesome, quick technique.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Aaron Turner</FONT></D
V></BODY></HTML>
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------------------------------
Date: Thu, 8 Mar 2001 16:15:58 -0500
From: Judith Weis <jweis@ANDROMEDA.RUTGERS.EDU>
Subject: Re: New pollution tool
Fungi "break down" heavy metals?????? I don't think so.
1880's: "There's lots of good fish in the sea" W.S. Gilbert
1990's: Many fish stocks depleted due to overfishing, habitat loss,
and pollution. \ \
\ \ \
- - _ - \ \ \ \ ----\
- _ - \
- - ( O \
_ - -_ __ /
- - /
-/// _ ______ ___/
/// /
Judith S. Weis Department of Biological Sciences
Rutgers Univ. Newark NJ 07102 jweis@andromeda.rutgers.edu
------------------------------
Date: Thu, 8 Mar 2001 15:29:42 -0600
From: Aaron Turner <a-turner2@NEIU.EDU>
Subject: Re: New pollution tool
http://www.fungiperfecti.com/remed.html
Please review this link, then you may believe.....
Aaron Turner
----- Original Message -----
From: "Judith Weis" <jweis@andromeda.rutgers.edu>
To: "Aaron Turner" <a-turner2@neiu.edu>
Cc: <ECOLOG-L@UMDD.UMD.EDU>
Sent: Thursday, March 08, 2001 3:15 PM
Subject: Re: New pollution tool
> Fungi "break down" heavy metals?????? I don't think so.
>
> 1880's: "There's lots of good fish in the sea" W.S. Gilbert
> 1990's: Many fish stocks depleted due to overfishing, habitat loss,
> and pollution. \ \
> \ \ \
> - - _ - \ \ \ \ ----\
> - _ - \
> - - ( O \
> _ - -_ __ /
> - - /
> -/// _ ______ ___/
> /// /
> Judith S. Weis Department of Biological Sciences
> Rutgers Univ. Newark NJ 07102 jweis@andromeda.rutgers.edu
>
>
>
>
>
------------------------------
Date: Thu, 8 Mar 2001 15:26:52 -0600
From: "Cramer, Kenneth" <KENC@MONM.EDU>
Subject: Re: New pollution tool
I am excited about the benefits we may gain from organisms that can detoxify
certain hazardous materials, but I am skeptical that fungi can "completely
break down" heavy metals, which are, after all, ELEMENTS. Unless fungi are
practicing some kind of alchemy and changing mercury into carbon by
rearranging protons, neutrons, and electrons, it's an overstatement to say
that we can do anything with heavy metals other than retrieve and store them
in a safer environment. So let's not get overly excited and put too much
faith in a supposed techno-fix to serious hazardous waste problems lest we
become unduly enamored of our cleverness and forget the value of wisdom.
Wisdom might focus on preventing the accumulation of more hazardous waste,
rather than encouraging it's production because we now have miracle fungi
that can "completely break it down." Thanks,
Ken Cramer
Monmouth College
-----Original Message-----
From: Aaron Turner [mailto:a-turner2@NEIU.EDU]
Sent: Thursday, March 08, 2001 2:42 PM
To: ECOLOG-L@UMDD.UMD.EDU
Subject: Re: New pollution tool
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Yes, the metals are concentrated in the biomass of the plants. The =
plants are then harvested and can be broken down into a volume that is =
much less that if the entire site was dug up, placed into 55 gallon =
drums and placed into a hazmat site. Which seems more logical. Fungi =
have the ability to completely break down heavy metals and hazardus =
materials. A mycologist from Washington state is working with the =
mililtary and other large companies using this awesome, quick technique.
Aaron Turner
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charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 5.50.4134.600" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#f0e8d8>
<DIV><FONT face=3DArial size=3D2>Yes, the metals are concentrate
in the =
biomass of=20
the plants. The plants are then harvested and can be broken down into a =
volume=20
that is much less that if the entire site was dug up, placed into 55 =
gallon=20
drums and placed into a hazmat site. Which seems more logical. Fungi =
have the=20
ability to completely break down heavy metals and hazardus materials. A=20
mycologist from Washington state is working with the mililtary and other =
large=20
companies using this awesome, quick technique.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Aaron Turner</FONT></D
V></BODY></HTML>
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------------------------------
Date: Thu, 8 Mar 2001 16:11:27 -0600
From: "D. Liane Cochran-Stafira" <cochran@SXU.EDU>
Subject: Re: New pollution tool
Aaron,
The site is a commercial site devoted to hawking its wares. I have no
problem with that. In fact the use of fungi as composting organisms is a
terrific idea and is the way things happen in natural ecosystems anyway.
However, the site mentions nothing about breaking down heavy metals. It
does discus breaking down toxic organic compounds, and yes, there is good
data to support this capacity in many microbes.
BUT It is not possible to break down metals. There is no carbon nutrient
for the fungus in a metal from which to make organic molecules. Besides
most heavy metal waste is due to elemental metals such as lead and cadmium
which by definition cannot be broken down.
I do agree with you on the fact that at least if biological accumulators
are used, the mass of contaminated material is greatly reduced. You do
still have to do something with the plants or fungi though.
Liane
At 03:29 PM 3/8/01 -0600, you wrote:
>http://www.fungiperfecti.com/remed.html
>
>Please review this link, then you may believe.....
>
>Aaron Turner
>----- Original Message -----
>From: "Judith Weis" <jweis@andromeda.rutgers.edu>
>To: "Aaron Turner" <a-turner2@neiu.edu>
>Cc: <ECOLOG-L@UMDD.UMD.EDU>
>Sent: Thursday, March 08, 2001 3:15 PM
>Subject: Re: New pollution tool
>
>
>> Fungi "break down" heavy metals?????? I don't think so.
>>
>> 1880's: "There's lots of good fish in the sea" W.S. Gilbert
>> 1990's: Many fish stocks depleted due to overfishing, habitat loss
>> and pollution. \ \
>> \ \ \
>> - - _ - \ \ \ \ ----\
>> - _ - \
>> - - ( O \
>> _ - -_ __ /
>> - - /
>> -/// _ ______ ___/
>> /// /
>> Judith S. Weis Department of Biological Sciences
>> Rutgers Univ. Newark NJ 07102 jweis@andromeda.rutgers.edu
>>
>>
>>
>>
>>
>
>
***************************
Liane Cochran-Stafira, Ph.D.
Department of Biology
Saint Xavier University
3700 West 103rd Street
Chicago, Illinois 60655
phone: 773-298-3514
fax: 773-779-9061
email: cochran@sxu.edu
------------------------------
Date: Fri, 9 Mar 2001 09:29:10 +1100
From: "Robert N. Reed" <rnreed@BIO.USYD.EDU.AU>
Subject: fungal bioremediation
Dear All;
The bioremedial powers of fungi are probably considerable (with the cave
t
that non-radioactive elements cannot be 'broken down'). However, should we
automatically assume that the positive aspects of fungi in a clean-up zone
outweigh their longer-term effect once they've moved out of these zones?
Unlike many plants used in bioremediation, fungi can't be pulled out and
stored after absorbing/transforming waste materials. In terms of
conservation ecology, does it make sense to have enormously vagile
organisms available to all and sundry by mail order? Given the importance
of fungi as detritivores in many ecosystems, I wonder about the effects of
new genes or new species on extant locally-adapted fungal communities, and
I wonder whether this type of risk assessment is attempted before
bioremediation takes place. That said, I remain utterly ignorant of almost
every facet of bioremediation, so feel free to pounce on this e-mail and
worry it to death with your electronic teeth.
Adios.
Bob
**********************************************************
Robert N. Reed
Fulbright Post-Graduate Fellow
Herpetology and Evolution Laboratory (Shine lab)
Dept. of Biological Sciences A08
University of Sydney
Sydney 2006 NSW Australia
Phone: 61 2 9351 3996
FAX: 61 2 9351 5609
U.S. Address (after 15 March 2001):
Department of Biological Sciences
Auburn University
Auburn AL 36849-5414 USA
e-mail: rreed@acesag.auburn.edu
**********************************************************
------------------------------
Date: Thu, 8 Mar 2001 17:16:09 -0500
From: Debby Andreadis <dka@UTK.EDU>
Subject: Re: New pollution tool
It specifies on that site that heavy metals are concentrated and removed
from the soil, not broken down.
Debby Williams Andreadis
dka@utk.edu
On Thu, 8 Mar 2001, Aaron Turner wrote:
*http://www.fungiperfecti.com/remed.html
*
*Please review this link, then you may believe.....
*
*Aaron Turner
*----- Original Message -----
*From: "Judith Weis" <jweis@andromeda.rutgers.edu>
*To: "Aaron Turner" <a-turner2@neiu.edu>
*Cc: <ECOLOG-L@UMDD.UMD.EDU>
*Sent: Thursday, March 08, 2001 3:15 PM
*Subject: Re: New pollution tool
*
*
*> Fungi "break down" heavy metals?????? I don't think so.
*>
*> 1880's: "There's lots of good fish in the sea" W.S. Gilbert
*> 1990's: Many fish stocks depleted due to overfishing, habitat loss,
*> and pollution. \ \
*> \ \ \
*> - - _ - \ \ \ \ ----\
*> - _ - \
*> - - ( O \
*> _ - -_ __ /
*> - - /
*> -/// _ ______ ___/
*> /// /
*> Judith S. Weis Department of Biological Sciences
*> Rutgers Univ. Newark NJ 07102 jweis@andromeda.rutgers.edu
*>
*>
*>
*>
*>
*
------------------------------
Date: Thu, 8 Mar 2001 17:44:03 -0500
From: John Mack <John.Mack@EPA.STATE.OH.US>
Subject: Ohio prairie pollen studies
I am doing floristic and seed bank research on relict prairies in =
west-central Ohio (The former Sandusky Plains). In reviewing the =
literature on the prairie peninsula and recent synthesis papers using =
pollen percentages to determine the prairie-forest border, I have only =
come across a few older published papers with radiocarbon dated pollen =
studies near known presettlement Ohio prairie areas. =20
I am have been relying on Webb et al. (1983) "Holocene Changes in the =
Vegetation of the Midwest" quite a bit as well as Ogden (1966) "Forest =
History of Ohio" and Kapp and Gooding (1964) and Gooding and Ogden (1965), =
Wright (1968). I've also found older papers by Sears (1930, 1931, 1935, =
1967), Potter (1947) and others with undated profiles.
I am interested in finding out if anyone is doing, has done, or knows of =
more recent radiocarbon dated pollen studies in Ohio and especially in or =
near known Ohio prairie areas, if they exist. Other 1990s era prairie =
peninsula work would be of interest also.
Thanks in advance.
John
John J. Mack
Wetland Ecologist
Division of Surface Water
Ohio Environmental Protection Agency
122 S. Front Street
P.O. Box 1049
Columbus, Ohio 43216-1049
(614) 644-3076
john.mack@epa.state.oh.us
------------------------------
Date: Thu, 8 Mar 2001 14:55:16 -0800
From: Jeremy O'Leary <jeremy@BIOHABIT.COM>
Subject: Re: New pollution tool
I would add that while you can not break down heavy metals (without
fission or fusion), you can make the metals less toxic by manipulating
what elements or compounds the heavy metals bond, which is what I believe
most flora does. Also, some vascular plants can also move fairly large
conc. of toxics/metals into vacuoles and thus removing them from contact
with their metabolism.
You can also make the the metals far more toxic, elemental Mercury vs
Methyl Mercury, for example.
+ Jeremy
On Thu, 8 Mar 2001, D. Liane Cochran-Stafira wrote:
> Aaron,
> The site is a commercial site devoted to hawking its wares. I have no
> problem with that. In fact the use of fungi as composting organisms is
a
> terrific idea and is the way things happen in natural ecosystems anyway
> However, the site mentions nothing about breaking down heavy metals. I
> does discus breaking down toxic organic compounds, and yes, there is go
d
> data to support this capacity in many microbes.
>
> BUT It is not possible to break down metals. There is no carbon nutri
nt
> for the fungus in a metal from which to make organic molecules. Beside
> most heavy metal waste is due to elemental metals such as lead and cadm
um
> which by definition cannot be broken down.
>
> I do agree with you on the fact that at least if biological accumulator
> are used, the mass of contaminated material is greatly reduced. You do
> still have to do something with the plants or fungi though.
>
> Liane
>
> At 03:29 PM 3/8/01 -0600, you wrote:
> >http://www.fungiperfecti.com/remed.html
> >
> >Please review this link, then you may believe.....
> >
> >Aaron Turner
> >----- Original Message -----
> >From: "Judith Weis" <jweis@andromeda.rutgers.edu>
> >To: "Aaron Turner" <a-turner2@neiu.edu>
> >Cc: <ECOLOG-L@UMDD.UMD.EDU>
> >Sent: Thursday, March 08, 2001 3:15 PM
> >Subject: Re: New pollution tool
> >
> >
> >> Fungi "break down" heavy metals?????? I don't think so.
> >>
> >> 1880's: "There's lots of good fish in the sea" W.S. Gilbert
> >> 1990's: Many fish stocks depleted due to overfishing, habitat
loss,
> >> and pollution. \ \
> >> \ \ \
> >> - - _ - \ \ \ \ ----\
> >> - _ - \
> >> - - ( O \
> >> _ - -_ __ /
> >> - - /
> >> -/// _ ______ ___/
> >> /// /
> >> Judith S. Weis Department of Biological Sciences
> >> Rutgers Univ. Newark NJ 07102 jweis@andromeda.rutgers
edu
> >>
> >>
> >>
> >>
> >>
> >
> >
>
> ***************************
> Liane Cochran-Stafira, Ph.D.
> Department of Biology
> Saint Xavier University
> 3700 West 103rd Street
> Chicago, Illinois 60655
>
> phone: 773-298-3514
> fax: 773-779-9061
> email: cochran@sxu.edu
>
_______________
Jeremy O'Leary
Banging your head against a wall uses 150 calories an hour.
------------------------------
Subject: ECOLOG-L Digest - 6 Mar 2001 to 7 Mar 2001
To: Recipients of ECOLOG-L digests <ECOLOG-L@UMDD.UMD.EDU>
Status: R
There are 17 messages totalling 1081 lines in this issue.
Topics of the day:
1. Nabokov's butterfly (3)
2. limnology technician
3. New Pollution Tool Toxic Avengers With Leaves (2)
4. Three summer Research Technician Position on Lake Erie
5. Summer Employment -- 4 Bio. Techs.
6. Please post this position opening on your ecolog-L
7. long term field labs (2)
8. Research Technicians Wanted, Colorado Small Mammal Study
9. Wildlfie/Conservation Careers
10. Alternative for the term Relative abundance (4)
----------------------------------------------------------------------
Date: Tue, 6 Mar 2001 22:18:37 EST
From: Lisa Deaton <Lmdeaton@AOL.COM>
Subject: Nabokov's butterfly
I am trying to find out the scientific name of a butterfly named after the
Russian author Vladimir Nabokov. I am also looking for information or
photographs of the butterfly.
Thank you--Lisa
------------------------------
Date: Wed, 7 Mar 2001 09:26:14 -0500
From: sarnelle@PILOT.MSU.EDU
Subject: limnology technician
JOB OPENING: LIMNOLOGY TECHNICIAN, ALPINE LAKES PROJECT
APPLICATION DEADLINE EXTENDED TO APRIL 5, 2001.
MICHIGAN STATE UNIVERSITY
Research Technologist
Department of Fisheries and Wildlife, College of Agriculture and Natural
Resources.
Requires knowledge equivalent to that which normally would be acquired by
completing a four-year college degree program in biology or a related
field; up to six months of related work experience in basic
research techniques in a related field including identification and
enumeration of freshwater phytoplankton and flurometric and
spectrophotometric techniques in water analysis; or an equivalent
combination of education and experience. Desired experience would include
backpacking at high elevations (>9,000 ft), general field techniques in
limnology, handling of low-energy radioisotopes (14C for example), computer
software (word processing, spreadsheet, statistics, graphics, and database
mgmt). This position participates in field sampling of high-elevation
lakes in the central Sierra Nevada of California during the summer.
Position is based at Michigan State University (East Lansing, MI) from
October to May and at the Sierra Nevada Aquatic Research Laboratory
(SNARL), Mammoth Lakes, California, June to September. This is a project
technician position funded for at least 12 months. Contact MSU Employment
office at 517/432-1662 to request an application. Refer to posting #C10067.
Closing date is March 2, 2001. MSU is an affirmative action/equal
opportunity institution. Women and minority candidates are encouraged to
apply.
FOR MORE INFORMATION, CONTACT:
Orlando Sarnelle
Assistant Professor
Department of Fisheries and Wildlife
163 Natural Resources Building
Michigan State University
East Lansing, MI 48824-1222
office phone: 517-353-4819
Fax #: 517-432-1699
e-mail: sarnelle@pilot.msu.edu
webpage: http://www.fw.msu.edu/faculty/sarnelle/
Orlando Sarnelle
Assistant Professor
Department of Fisheries and Wildlife
163 Natural Resources Building
Michigan State University
East Lansing, MI 48824-1222
office phone: 517-353-4819
Fax #: 517-432-1699
e-mail: sarnelle@pilot.msu.edu
webpage: http://www.fw.msu.edu/faculty/sarnelle/
------------------------------
Date: Wed, 7 Mar 2001 11:21:53 -0500
From: Karen Claxon <kclaxon@EARTHLINK.NET>
Subject: New Pollution Tool Toxic Avengers With Leaves
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New Pollution Tool: Toxic Avengers With Leaves
By ANDREW C. REVKIN
As scientists struggle to find cheaper, easier ways to clean up polluted
soil and groundwater, they are increasingly wielding a novel tool:
plants.
In the United States alone, the cost of decontaminating tens of
thousands of toxic sites on factory grounds, farms and military
installations is expected to eventually surpass $700 billion, several
analyses show.
The main approach so far, digging out offending chemicals and carting
them to special landfills, is costly and disruptive, often requiring
fleets of trucks, forests of mechanical wells and other equipment.
After a decade of field and greenhouse tests, a variety of techniques
harnessing the absorptive power of plants' roots appear poised for a
much expanded role.
Hundreds of species of plants, together with the fungi and bacteria that
infuse the rhizosphere, the ecosystem around roots, represent the
botanical equivalent of detox centers, seeking and often breaking down
molecules that can harm most other life, soil scientists and botanists
say. http://www.nytimes.com/2001/03/06/science/06PLAN.html
Dr. Lena Q. Ma helped discover that the brake fern filters arsenic out
of water and soil. ``It not only tolerates arsenic, it loves it,'' Dr.
Ma said.
Slavik Dushenkov
Sunflowers soaked up radioactive elements near Chernobyl.
A. Joseph Pollard/Furman University
A locust ate the alpine herb at right but did not attack the herb that
had absorbed zinc.
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------------------------------
Date: Wed, 7 Mar 2001 11:33:39 -0500
From: Gene wook Kim <kim.985@OSU.EDU>
Subject: Three summer Research Technician Position on Lake Erie
Dear List Members:
This is an announcements for three summer research technician positions
(May-September 2001) that we have available to assist with our ongoing
smallmouth bass and ecosystem research on Lake Erie. The technicians will
assist two graduate student leading the projects. Please pass it along to
any finishing or recently finished undergraduates or MS students you think
might be interested in gaining some additional research experience.
Three Field Fisheries Technician Positions --Lake Erie Smallmouth Bass and
Ecosystem Research
Duration: May-September 2001
Closing Date: 23 March 2001
Agency: The Ohio State University-Aquatic Ecology Lab, Columbus, Ohio
Project Descriptions: Our two Lake Erie research projects deal with 1) how
storms, anglers, and nest predators affect smallmouth bass nest success in
two different lake ecosystems: Lake Erie and Lake Opeongo, Ontario and 2)
how changes in Lake Erie food-web structure and basin-wide
sediment characteristics affect the flow of both energy and contaminants
within this food web.
More information on these projects and the Aquatic Ecology Lab is available
on the web at: http://www.biosci.ohio-state.edu/~eeob/ael/index.html
Position Responsibilities: Tasks for these three positions include field
sampling on Lake Erie using various techniques (two of our three positions
involve SCUBA diving), processing samples, and data entry. Depending on
the position, additional duties include sample processing for zooplankton,
eggs, diets, and macroinvertebrates, determining fish ages via scales and
otoliths, chemical analyses, and maintaining laboratory research organisms.
Salary: $7.00-7.60 per hour (housing is available at the field
stations). The ideal applicant would begin work no later than 15 May 2001;
however, there is flexibility in both the start and end dates. Medical
benefits and housing will not be provided, except when at the field
stations. Applicants must find housing in Columbus, Ohio (temporary
housing may be available). Applicants must have completed a bachelor's
degree or be a currently enrolled student in biological sciences or a
related field. Successful applicants must be comfortable working on a
large boat, often in rough conditions, and be flexible to spend an extended
period at the research sites. Candidates must be self-motivated and able
to work with a variety of people. Experience with the previously mentioned
field sampling and laboratory analyses is desired, but not essential.
Contact and Application Information: All applicants must submit a carefully
crafted cover letter describing your interests and qualifications, resume,
college transcripts (can be unofficial), and names, addresses, and phone
numbers of three (3) references by 23 March 2001. Decisions will be made
the first week of April. Given that multiple positions are open within the
Aquatic Ecology Lab, please be sure to indicate this specific project for
which you are applying.
Please send materials and direct questions to:
Beth De Witt, Administrative Assistant
Aquatic Ecology Laboratory
1314 Kinnear Road
Columbus, OH 43212-1156
Voice: 614/292-1613, Fax: 614/292-0181
Internet: dewitt.2@osu.edu
Gene W. Kim
Aquatic Ecology Laboratory
Department of Evolution, Ecology, and Organismal Biology
The Ohio State University
Rm. 221 Research Center Building
1314 Kinnear Road
Columbus, OH 43212-1156
Voice: 614/292-1613
Fax: 614/292-0181
Home Page: http://www.mindspring.com/~genekim/gwk_index.html
Internet: kim.985@osu.edu
------------------------------
Date: Wed, 7 Mar 2001 12:07:49 -0500
From: Keith L Pardieck <keith_pardieck@USGS.GOV>
Subject: Summer Employment -- 4 Bio. Techs.
FOUR BIOLOGICAL SCIENCE TECHNICIANS NEEDED --
The USGS Patuxent Wildlife Research Center, Monitoring Operations Group is
seeking to hire Four (4) full-time temporary Biological Science Technicians
to assist Monitoring Program biologists in maintaining and developing
national biological inventory and monitoring programs and databases, such
as those of the North American Breeding Bird Survey and Colonial Waterbird
Monitoring programs. Duties will include: preparation of biological data
for computer entry, performance of quality assurance and quality control
procedures on biological data using optical character recognition software
and other techniques, assisting with database management, conducting
literature searches, preparation of graphs, charts and other materials for
web pages, and assisting in preparation of administrative correspondence
and technical reports on wildlife resources. Qualifications: current
student in biology, wildlife management, or related field at an accredited
college or university with at least two years of completed course work;
knowledge of biological theories, concepts and principles (knowledge of the
distributions and natural history of North American birds a plus);
knowledge of computer software used to summarize data and develop web
pages; ability to communicate effectively both verbally and in writing.
Duration of positions: 4 June - 31 Aug. 2001, continued full or part-time
employment possible after end date. Salary range: $10.36 - $11.59. Duty
Station: work will be performed in an office environment located on the
USGS Patuxent Wildlife Research Center campus in Laurel, MD. Dormitory
style housing available, if needed. For more information contact: Keith
Pardieck (301-497-5843), or Melanie Steinkamp (301-497-5753). To apply,
send cover letter and resume with three references by 23 March 2001 to:
Keith Pardieck, USGS Patuxent Wildlife Research Center, 12100 Beech Forest
Road, Laurel, MD 20708-4038; email: Keith_Pardieck@usgs.gov.
----------------------------------------------------------------------------
---
--------
Keith L. Pardieck
USGS Patuxent Wildlife Research Center
12100 Beech Forest Road
Laurel, MD 20708-4038
301-497-5843 Tel
301-497-5784 Fax
Breeding Bird Survey - www.mp2-pwrc.usgs.gov/bbs/
----------------------------------------------------------------------------
---
-------
------------------------------
Date: Wed, 7 Mar 2001 11:50:16 -0700
From: "Aaron R. Ellingson" <are@LAMAR.COLOSTATE.EDU>
Subject: Re: Nabokov's butterfly
Lisa,
Interesting topic. Nabokov was a fascinating individual. Nabokovia
excisicosta is the name you are looking for and I think this web article
has a picuture as well as other links:
http://www.suite101.com/article.cfm/1641/29816
Cheers,
aaron
At 10:18 PM 3/6/01 EST, Lisa Deaton wrote:
>I am trying to find out the scientific name of a butterfly named after t
e
>Russian author Vladimir Nabokov. I am also looking for information or
>photographs of the butterfly.
>Thank you--Lisa
>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Aaron R. Ellingson
Research Assistant
Colorado Cooperative Wildlife Research Unit
Department of Fishery and Wildlife Biology
Colorado State University
Fort Collins, CO 80523
are@lamar.colostate.edu
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
------------------------------
Date: Wed, 7 Mar 2001 11:09:46 -0600
From: "Glenda Parks, PHR" <jobforce@HOME.COM>
Subject: Please post this position opening on your ecolog-L
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Ecological Risk Assessor - Major company has opening for Eco Risk =
Assessor in San Diego CA. Work may include Human Health Regs., Marine =
Impact studies, working with the gov't (Navy), Sediment Management, and =
Baseline Oil & Gas Assessments. Occasional travel the Caspian Sea area =
may be required as well.=20
Requirements: Masters degree or above in appropriate discipline. At =
least 3 years experience.=20
Contact Glenda Parks, Job Force One, jobforce@home.com, 225-752-1043
Thanks
Glenda Parks, PHR
Job Force One/The Eastman Group
www.nvo.com/jobforce=20
225-752-1043
jobforce@home.com
------=_NextPart_000_00D8_01C0A6F7.1E4BF040
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charset="iso-8859-1"
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<META content=3D"text/html; charset=3Diso-8859-1" =
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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Ecological Risk Assessor - Majo
=
company has=20
opening for Eco Risk Assessor in San Diego CA. Work may include =
Human=20
Health Regs., Marine Impact studies, working with the gov't (Navy), =
Sediment=20
Management, and Baseline Oil & Gas Assessments. Occasional travel =
the=20
Caspian Sea area may be required as well. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2><B>Requirements: </B>
Masters degree or =
above in=20
appropriate discipline. At least 3 years experience. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Contact Glenda Parks, Job Force
One, <A =
href=3D"mailto:jobforce@home.com">jobforce@home.com</A>, =
225-752-1043</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2> </DIV>
<P>Thanks<BR></FONT><FONT face=3DArial size=3D2>Glen
a Parks, PHR<BR>Job =
Force=20
One/The Eastman Group<BR><A=20
href=3D"http://www.nvo.com/jobforce">www.nvo.com/jobforce</A>=20
<BR>225-752-1043<BR><A=20
href=3D"mailto:jobforce@home.com">jobforce@home.com</A><BR><
/FONT></P></B=
ODY></HTML>
------=_NextPart_000_00D8_01C0A6F7.1E4BF040--
------------------------------
Date: Wed, 7 Mar 2001 10:23:16 -0800
From: Carol Retzlaff <cretzlaff@SELKIRK.BC.CA>
Subject: long term field labs
Hello all,
I have been mulling over the idea of turning over an area of abandoned
grazing land on campus and using it as a site for long term field studies
for an Ecology course. For example, students could follow succession,
think about colonization success of exotic vs endemic species, map out
distribution patterns, etc.
Has anyone tried anything like this or seen a similar protocol?
Regards
Carol Retzlaff
Instructor, Dept of Biological Sciences
Selkirk College
Castlegar, British Columbia
------------------------------
Date: Wed, 7 Mar 2001 11:15:24 -0700
From: Thomas R Stanley <tom_stanley@USGS.GOV>
Subject: Research Technicians Wanted, Colorado Small Mammal Study
This is a multipart message in MIME format.
--=_alternative 0064A83A87256A08_=
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Dear Listmembers:
This announcement is for 2 seasonal research technicians to work on a=20
small mammal study on the shortgrass prairie in Northeastern Colorado.=20
Because the position will be administered as a student contract,=20
applicants must have been enrolled as a student at a university for at=20
least 1 credit-hour within the last year (note, this does not preclude=20
recent graduates). Please forward resumes electronically (WordPerfect or=20
MS Word preferred) to Tom Stanley at tom=5Fstanley@usgs.gov, or by mail to =
the address at the end of this message.=20
Project Description: The goal of this project is to assess small mammal=20
predation on natural and artificial nests on fragmented and unfragmented=20
shortgrass prairie in Colorado. To this end, the student contractor=20
(hereafter "student") will participate in all aspects of data collection=20
for the study, which is described in more detail below. The study will=20
begin on (approximately) May 7, 2001, and will end on (approximately) July =
13, 2001. Exact starting and ending dates will be negotiated with the=20
student. The student will be housed in a USGS-supplied trailer at the US=20
Forest Service Briggsdale work center on the Pawnee National Grasslands,=20
where utilities such as water, electricity, and waste disposal will be=20
supplied. The student will be required to split their workday to open=20
traps in the evening, and check and close traps the following morning.=20
Transportation between the Briggsdale work center and the study sites, and =
for work-related travel between the Midcontinent Ecological Science Center =
(MESC) and the Briggsdale work center, will be supplied by the project.=20
Description of Student Services: The student will participate in the=20
collection of small mammal capture-recapture data, avian nesting success=20
data, and vegetation data on the shortgrass prairie and surrounding areas=20
in Colorado. This will entail setting up (in the evening), baiting,=20
checking (in the morning), and maintaining live traps on one or more=20
trapping webs, and identifying, weighing, and marking captured small=20
mammals. Duties will also include vegetation sampling, construction and=20
monitoring of artificial bird nests for estimating predation rates,=20
searching for and monitoring natural nests, collection of precipitation=20
and temperature data, and entry of detailed data onto forms in the field=20
and into computerized data bases in the office. The student will be=20
required to wear hantavirus protective gear (respirator, gloves,=20
coveralls) while handling small mammals or traps contaminated by small=20
mammal urine or feces, and must pass a medical exam (paid for by the=20
project) certifying they can wear a respirator during the performance of=20
their duties.
Level of Knowledge or Skills: The student is required to have or to be=20
working toward a Bachelor's or Master's degree in wildlife biology,=20
ecology, or a related discipline, must be able to identify (to species)=20
small mammals occurring on the Pawnee National Grasslands and surrounding=20
areas, and must be physically capable of supplying the services listed=20
above while wearing hantavirus protective gear.=20
Working Conditions: The shortgrass prairie is a hot, dry environment, with =
physical hazards including intense sun exposure, dehydration,=20
thunderstorms, hailstorms and high winds. Biological hazards include a=20
small incidence rate of hantavirus in the small mammal population, and=20
the possibility of encountering rattlesnakes or black widow spiders. Field =
work will require a moderate degree of walking to open traps in the=20
evening and check traps in the morning - while wearing hantavirus=20
protective gear.=20
Pay Scale: MA/MS degree, $18/hr; BA/BS + 1 yr grad school, $15/hr; BA/BS,=20
$12/hr; 2 or more years of college, $11/hr.
***************************************************************************=
***
Thomas R. Stanley, Ph.D. Phone: 970-226-9360
U.S. Geological Survey Fax: 970-226-9230
Midcontinent Ecol. Science Ctr. Email: tom=5Fstanley@usgs.gov
4512 McMurry Ave. Internet: www.mesc.usgs.gov
Fort Collins, CO 80525
***************************************************************************=
***
--=_alternative 0064A83A87256A08_=
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<br><font size=3D2 face=3D"sans-serif"><br>
</font><font size=3D3 face=3D"Times New Roman">Dear Listmembers:<
/font>
<br>
<br><font size=3D3 face=3D"Times New Roman">This announcement is
for 2 seas=
onal research technicians to work on a small mammal study on the shortgrass=
prairie in Northeastern Colorado. Because the position will be admin=
istered as a student contract, applicants must have been enrolled as a stud=
ent at a university for at least 1 credit-hour within the last year (note, =
this does not preclude recent graduates). Please forward resumes elec=
tronically (WordPerfect or MS Word preferred) to Tom Stanley at tom=5Fstanl=
ey@usgs.gov, or by mail to the address at the end of this message. </font>
<br>
<br><font size=3D3 face=3D"Times New Roman">Project Description:
The goal o=
f this project is to assess small mammal predation on natural and artificia=
l nests on fragmented and unfragmented shortgrass prairie in Colorado. &nbs=
p;To this end, the student contractor (hereafter "student") will participat=
e in all aspects of data collection for the study, which is described in mo=
re detail below. The study will begin on (approximately) May 7, 2001,=
and will end on (approximately) July 13, 2001. Exact starting and en=
ding dates will be negotiated with the student. The student will be h=
oused in a USGS-supplied trailer at the US Forest Service Briggsdale work c=
enter on the Pawnee National Grasslands, where utilities such as water, ele=
ctricity, and waste disposal will be supplied. The student will be re=
quired to split their workday to open traps in the evening, and check and c=
lose traps the following morning. Transportation between the Briggsda=
le work center and the study sites, and for work-related travel between the=
Midcontinent Ecological Science Center (MESC) and the Briggsdale work cent=
er, will be supplied by the project. </font>
<br>
<br><font size=3D3 face=3D"Times New Roman">Description of Stude
t Services=
: The student will participate in the collection of small mammal capture-re=
capture data, avian nesting success data, and vegetation data on the shortg=
rass prairie and surrounding areas in Colorado. This will entail sett=
ing up (in the evening), baiting, checking (in the morning), and maintainin=
g live traps on one or more trapping webs, and identifying, weighing, and m=
arking captured small mammals. Duties will also include vegetation sa=
mpling, construction and monitoring of artificial bird nests for estimating=
predation rates, searching for and monitoring natural nests, collection of=
precipitation and temperature data, and entry of detailed data onto forms =
in the field and into computerized data bases in the office. The stud=
ent will be required to wear hantavirus protective gear (respirator, gloves=
, coveralls) while handling small mammals or traps contaminated by small ma=
mmal urine or feces, and must pass a medical exam (paid for by the project)=
certifying they can wear a respirator during the performance of their duti=
es.</font>
<br>
<br><font size=3D3 face=3D"Times New Roman">Level of Knowledge o
Skills: T=
he student is required to have or to be working toward a Bachelor's or Mast=
er's degree in wildlife biology, ecology, or a related discipline, must be =
able to identify (to species) small mammals occurring on the Pawnee Nationa=
l Grasslands and surrounding areas, and must be physically capable of suppl=
ying the services listed above while wearing hantavirus protective gear. <
/=
font>
<br>
<br><font size=3D3 face=3D"Times New Roman">Working Conditions:
he shortgr=
ass prairie is a hot, dry environment, with physical hazards including inte=
nse sun exposure, dehydration, thunderstorms, hailstorms and high winds. &n=
bsp;Biological hazards include a small incidence rate of hantavirus in the =
small mammal population, and the possibility of encountering rattlesn=
akes or black widow spiders. Field work will require a moderate degre=
e of walking to open traps in the evening and check traps in the morning - =
while wearing hantavirus protective gear. </font>
<br>
<br><font size=3D3 face=3D"Times New Roman">Pay Scale: MA/MS deg
ee, $18/hr=
; BA/BS + 1 yr grad school, $15/hr; BA/BS, $12/hr; 2 or more years of colle=
ge, $11/hr.</font>
<br><font size=3D2 face=3D"sans-serif"><br>
<br>
***************************************************************************=
***<br>
Thomas R. Stanley, Ph.D. Ph=
one: 970-226-9360<br>
U.S. Geological Survey &nb=
sp; Fax: 970-226-9230<br>
Midcontinent Ecol. Science Ctr. Email: tom=5Fstanley@usgs.gov=
<br>
4512 McMurry Ave. &=
nbsp; Internet: www.mesc.usgs.gov<br>
Fort Collins, CO 80525<br>
***************************************************************************=
***</font>
--=_alternative 0064A83A87256A08_=--
------------------------------
Date: Wed, 7 Mar 2001 13:40:23 -0500
From: Jodi Witte <jwitte@ANIMALHELP.COM>
Subject: Wildlfie/Conservation Careers
Dear Listmembers,
I am currently searching for professionals who are interested in authoring
articles relating to their careers for a new website AnimalHelp.Com which
will be going live on April 1st. These articles will be featured in the
Wildlife Career section. The majority of the audience will be high
school/college age with the rest spread out between pre-teens and older
persons wishing for a career change. What we need is information about the
career, what work is involved, how your career benefits wildlife and the
environment, what type of schooling is needed, etc.... We welcome all types
of biologists and other wildlife and conservation professionals, as we know
your experiences and specialties are all different. All submissions can be
made by email and we can begin accepting them immediately. All authors
receive full credit for their work and a brief author bio will be included
for each article. Please feel free to contact me if you have any other
questions and I look forward to hearing from you!
Jodi Witte
EVP Community Development
AnimalHelp.Com
http://www.animalhelp.com
PS If you are interested in authoring other types of articles on
wildlife/conservation for a general audience, we would also love to hear
from you!
------------------------------
Date: Wed, 7 Mar 2001 11:02:35 -0600
From: Robert Dana <robert.dana@DNR.STATE.MN.US>
Subject: Re: Nabokov's butterfly
There is probably more than one. One that I am familiar with is a =
subspecies of the northern blue, Lycaeides idas nabokovi Masters,. This =
has been given the English name Nabokov's blue. It is a small blue =
butterfly (very similar to the Karner blue, Lycaeides melissa samuelis =
Nabokov, described by Nabokov as you can see) that is restricted to =
northern MN, WI, MI, MB, and ON. The only reported food plant for the =
caterpillars is dwarf bilberry, Vaccinium cespitosum. The butterfly occurs =
in openings on sandy/gravelly/rocky soil in the northern forest. Not all =
workers accept the distinctiveness of this entity, lumping it into the =
more widespread subspecies L. idas scudderi. I'll send photos to you =
privately as attachments to lists are frowned upon.
Robert Dana
*************************************************************
Robert Dana, Ph.D.
MN DNR
Natural Heritage and Nongame Research Program
500 Lafayette Rd, Box 25
St. Paul, MN 55155
651 297-2367
Email: robert.dana@dnr.state.mn.us
*************************************************************
>>> Lisa Deaton <Lmdeaton@aol.com> 3/6/01 9:18:37 PM >>>
I am trying to find out the scientific name of a butterfly named after the
Russian author Vladimir Nabokov. I am also looking for information or
photographs of the butterfly.
Thank you--Lisa
------------------------------
Date: Wed, 7 Mar 2001 13:19:52 -0800
From: Wayne Tyson <landrest@UTM.NET>
Subject: Re: long term field labs
Dear Carol:
Excellent idea, but please don't just duplicate other experiments. Think
independently. Work our your own concept, then (and only then, please)
compare it to others. Refine according to your best judgment (combining
your uncontaminated best original judgment, then modifying it under the
influence of similar experiences and projects). This way, you take
advantage of your own unique thoughts, think out of the box, avoid the
ruts, the "protocol" of others, etc. In fact, the greatest value of
looking at other long-term experiments might be to critically evaluate them
and to take on the challenge of doing it better. Or even just differently.
You probably already have thought of this (I hope).
Lordy, but does the world need more of this!!! There are others, but some
of the ones (damned few) of which I am aware follow traditional agronomic
assumptions (e.g. think primarily or only in terms of biomass and
cover--as positive values, stress and fluctuations as negative ones) rather
than ecological ones. Where are the exceptions? Not only for grasslands
but for other community types and habitats?
I hope you will share a list of similar projects. A good student
project? Comparing the "protocols?" Thinking up new protocols? Defining
what's left out? Developing a master list of possible elements for
observation? Defining/discussing relevance/non-relevance? The differences
between agronomic and ecological approaches?
Best,
WT
PS:
Couldn't you get your "institution" to change your title?
At 10:23 AM 03/07/2001 -0800, Carol Retzlaff wrote:
>Hello all,
>
>I have been mulling over the idea of turning over an area of abandoned
>grazing land on campus and using it as a site for long term field studie
>for an Ecology course. For example, students could follow succession,
>think about colonization success of exotic vs endemic species, map out
>distribution patterns, etc.
>
>Has anyone tried anything like this or seen a similar protocol?
>
>Regards
>
>Carol Retzlaff
>Instructor, Dept of Biological Sciences
>Selkirk College
>Castlegar, British Columbia
------------------------------
Date: Wed, 7 Mar 2001 11:37:24 -0500
From: "Christopher A. Brown" <brownc@FREDONIA.EDU>
Subject: Alternative for the term Relative abundance
To all,
Just as the preference vs selection debate has died down, I have
another semantic question. First, some probably needlessly long
background...
I am working with a community of scorpions in west Texas and have
gathered data on number of individuals per 100 square meters (the standard
sized quadrat I use) in both diurnal and nocturnal searches. To do these
diurnal counts, I and my coworkers flip all surface objects, mainly rocks,
collect scorpions into vials and hold them until all objects in a quadrat
have been turned. We then count number of individuals per species and
release them back into the plot. Now, the problem is that we are only
finding and counting individuals that are on the "surface" (albeit under
something), and not individuals that are below the surface. Thus, we are
undoubtedly underestimating true density; this is particurlary true for two
burrowing species and for all species during the summer, when we suspect
that many individuals crawl into deep cracks in the soil to avoid the
intense daytime heat.
Because we are likely not getting true densities, we have been
referring to these counts as "relative abundances". However, a reviewer of
a manuscript based on these data has suggested that "relative abundance" is
a poor term. His reasoning is that this term suggests a species abundance
relative to the total abundance of all species of scorpions in the
community. I have been using it as a species abundance relative to the true
(undetermined) abundance of that species. His suggestion is to replace
"relative abundance" with "density," but "density" has a stronger
connotation, to me at least, than is implied by my data.
I would appreciate any comments on the relative merits of the terms
"relative abundance" and "density," and any suggestions for alternative
phrases to describe these counts (other than "density of scorpions found on
the surface but below a cover object"!).
Thanks in advance,
Chris
Chris Brown
Dept. of Biology
SUNY College at Fredonia
Fredonia, NY 14063
Phone: (716) 673-3284
email: Christopher.Brown@fredonia.edu
------------------------------
Date: Wed, 7 Mar 2001 15:27:29 -0500
From: Henry Freedenberg <henryf@GLY.FSU.EDU>
Subject: Re: New Pollution Tool Toxic Avengers With Leaves
I saw this article on the NY Times web page.
They are missing an important point. All those metals don't disappear
when they are phytoremediated. They are simply bioconcentrated in the
vegetation. You still have the problem of deal with heavy metal rich
vegetation when it dies.
Henry
------------------------------
Date: Wed, 7 Mar 2001 16:06:44 -0600
From: David McNeely <mcneely@UTB1.UTB.EDU>
Subject: Re: Alternative for the term Relative abundance
There is nothing inheritantly wrong with the term "relative density," for wh
t
you are doing. However, I have a couple of questions.
1. Is it not likely that since you are working only at the "surface,"
different species are differentially exposed to your detecting them?
2. Since you are catching a lot of the scorpions and then returning them, a
d
then repeating the process at some later time, could you not get a more
accurate picture of their abundance by some sort of mark-recapture method?
Just a thought.
"Christopher A. Brown" wrote:
> To all,
>
> Just as the preference vs selection debate has died down, I have
> another semantic question. First, some probably needlessly long
> background...
> I am working with a community of scorpions in west Texas and have
> gathered data on number of individuals per 100 square meters (the stand
rd
> sized quadrat I use) in both diurnal and nocturnal searches. To do thes
> diurnal counts, I and my coworkers flip all surface objects, mainly roc
s,
> collect scorpions into vials and hold them until all objects in a quadr
t
> have been turned. We then count number of individuals per species and
> release them back into the plot. Now, the problem is that we are only
> finding and counting individuals that are on the "surface" (albeit unde
> something), and not individuals that are below the surface. Thus, we ar
> undoubtedly underestimating true density; this is particurlary true for
two
> burrowing species and for all species during the summer, when we suspec
> that many individuals crawl into deep cracks in the soil to avoid the
> intense daytime heat.
> Because we are likely not getting true densities, we have been
> referring to these counts as "relative abundances". However, a reviewer
of
> a manuscript based on these data has suggested that "relative abundance
is
> a poor term. His reasoning is that this term suggests a species abundan
e
> relative to the total abundance of all species of scorpions in the
> community. I have been using it as a species abundance relative to the
rue
> (undetermined) abundance of that species. His suggestion is to replace
> "relative abundance" with "density," but "density" has a stronger
> connotation, to me at least, than is implied by my data.
> I would appreciate any comments on the relative merits of the terms
> "relative abundance" and "density," and any suggestions for alternative
> phrases to describe these counts (other than "density of scorpions foun
on
> the surface but below a cover object"!).
>
> Thanks in advance,
> Chris
>
> Chris Brown
> Dept. of Biology
> SUNY College at Fredonia
> Fredonia, NY 14063
> Phone: (716) 673-3284
> email: Christopher.Brown@fredonia.edu
--
===============================================
"Are we there yet?" Source unknown
See my web page at http://unix.utb.edu/~mcneely
===============================================
David L. McNeely (Dave)
Professor and Graduate Coordinator
Biological Sciences
The University of Texas at Brownsville
80 Fort Brown
Brownsville, TX 78520
Telephone (956) 544-8289 or 983-7578
FAX (956) 983-7115
mailto:mcneely@utb1.utb.edu
------------------------------
Date: Wed, 7 Mar 2001 15:56:28 -0700
From: "Aaron R. Ellingson" <are@LAMAR.COLOSTATE.EDU>
Subject: Re: Alternative for the term Relative abundance
Some use "index" or "abundance/density index." "Density" is definitely
misleading.
However, aside from semantic issues, one should seriously consider David
McNeely's points. The assumption inherent in using a metric that is
"relative" to true abundance is that this relationship does not vary. That
is, the probability of detection is the same across species (unlikely),
across days (feasible, but what about weather?), across habitats (?),
across observers (?) etc. One should justify these assumptions, or at
least examine the sensitivity of results to this assumption, whenever such
"indices" are used.
Too often we rely on using simple "indices" (and their unexamined
assumptions) when direct estimation of detection probability is often
feasible. The suggestion to used marked animals is one such method.
Others (double-platform observation, distance sampling) are available.
Good luck,
Aaron
At 04:06 PM 3/7/01 -0600, David McNeely wrote:
>There is nothing inheritantly wrong with the term "relative density," fo
what
>you are doing. However, I have a couple of questions.
>
>1. Is it not likely that since you are working only at the "surface,"
>different species are differentially exposed to your detecting them?
>
>2. Since you are catching a lot of the scorpions and then returning the
,
and
>then repeating the process at some later time, could you not get a more
>accurate picture of their abundance by some sort of mark-recapture metho
?
>
>Just a thought.
>
>"Christopher A. Brown" wrote:
>
>> To all,
>>
>> Just as the preference vs selection debate has died down, I hav
>> another semantic question. First, some probably needlessly long
>> background...
>> I am working with a community of scorpions in west Texas and ha
e
>> gathered data on number of individuals per 100 square meters (the s
andard
>> sized quadrat I use) in both diurnal and nocturnal searches. To do
hese
>> diurnal counts, I and my coworkers flip all surface objects, mainly
rocks,
>> collect scorpions into vials and hold them until all objects in a q
adrat
>> have been turned. We then count number of individuals per species a
d
>> release them back into the plot. Now, the problem is that we are on
y
>> finding and counting individuals that are on the "surface" (albeit
nder
>> something), and not individuals that are below the surface. Thus, w
are
>> undoubtedly underestimating true density; this is particurlary true
for two
>> burrowing species and for all species during the summer, when we su
pect
>> that many individuals crawl into deep cracks in the soil to avoid t
e
>> intense daytime heat.
>> Because we are likely not getting true densities, we have been
>> referring to these counts as "relative abundances". However, a revi
wer of
>> a manuscript based on these data has suggested that "relative abund
nce" is
>> a poor term. His reasoning is that this term suggests a species abu
dance
>> relative to the total abundance of all species of scorpions in the
>> community. I have been using it as a species abundance relative to
he true
>> (undetermined) abundance of that species. His suggestion is to repl
ce
>> "relative abundance" with "density," but "density" has a stronger
>> connotation, to me at least, than is implied by my data.
>> I would appreciate any comments on the relative merits of the t
rms
>> "relative abundance" and "density," and any suggestions for alterna
ive
>> phrases to describe these counts (other than "density of scorpions
ound on
>> the surface but below a cover object"!).
>>
>> Thanks in advance,
>> Chris
>>
>> Chris Brown
>> Dept. of Biology
>> SUNY College at Fredonia
>> Fredonia, NY 14063
>> Phone: (716) 673-3284
>> email: Christopher.Brown@fredonia.edu
>
>
>
>
>--
>===============================================
>"Are we there yet?" Source unknown
>
>See my web page at http://unix.utb.edu/~mcneely
>===============================================
>David L. McNeely (Dave)
>Professor and Graduate Coordinator
>Biological Sciences
>The University of Texas at Brownsville
>80 Fort Brown
>Brownsville, TX 78520
>Telephone (956) 544-8289 or 983-7578
>FAX (956) 983-7115
>mailto:mcneely@utb1.utb.edu
>
------------------------------
Date: Wed, 7 Mar 2001 18:12:27 -0600
From: Matthew Doeringsfeld <matthew_doeringsfeld@UND.NODAK.EDU>
Subject: Re: Alternative for the term Relative abundance
Chris,
At 11:37 AM 3/7/2001 -0500, you wrote:
> ....Now, the problem is that we are onl
>finding and counting individuals that are on the "surface" (albeit under
>something), and not individuals that are below the surface. Thus, we are
>undoubtedly underestimating true density; this is particurlary true for
wo
>burrowing species ...
Based on what you've said here, I would agree with the reviewer that you
are not truly estimating "relative abundance" which would generally be
interpreted as he/she described. (I have always taken relative abundance to
mean the proportion of the community comprised by a species). Your data
would be biased toward a higher relative abundance of "non-burrowing"
species compared to "burrowers", than actually exists in the community.
_________________________
> ...I have been using it as a species abundance relative to the
true(undetermined) abundance of that species.
I'm not sure of the utility of this interpretation, since you have no idea
(I presume) what the difference between the species (sampled) abundance and
true (parametric) abundance is, OR how this difference varies among species.
_________________________
> ...His suggestion is to replace "relative abundance" with "density," bu
"density" has a stronger connotation, to me at least, than is implied by my
data.
Density makes no presumption about what the actual proportional abundances
of various species in the community are; merely what you found with your
sampling regime. As such, density may be more appropriate. However, you
must also assume that the densities you calculate are underestimates of
true densities since you acknowledge that you are likely not collecting all
of the individuals in the quadrat. MORE IMORTANTLY, the degree to which
the densities would be underestimated would vary depending on the burrowing
behavior of each species (i.e. "burrower" densities would be underestimated
more than "non-burrowers"), or any number of other factors.
_________________________
There are definite differences in the semantics of the two terms, but each
has its drawbacks in your situation. The critical thing as I see it is to
recognize the problems associated with each and recognize that your
sampling regime limits the conclusions you are able to draw about community
structure. Even if you were to use just "density", you are still limited
based on the points above. Unfortunately, I can't think of a more
appropriate term to describe your data since you ARE measuring "density of
scorpions found on the surface but below a cover object". If you could
somehow quantify the bias associated with your sampling (e.g. excavate some
quadrats following surface sampling to determine this), you could stretch
your interpretations a little farther.
Matt
**********************************
Matthew R. Doeringsfeld
Dept. of Biology, UND
Box 9019 Starcher Hall
Grand Forks, ND 58202
Ph#: (701)777-3676
Fax: (701)777-2623
matthew_doeringsfeld@und.nodak.edu
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End of ECOLOG-L Digest - 6 Mar 2001 to 7 Mar 2001
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Thanks to discussion with TVR, I have decided to put a link to back files of the discussion group. This months back files.
The link to complete archives is available elsewhere.
This text was originally an e-mail. It was converted using a program
RUPANTAR- a simple e-mail-to-html converter.
(c)Kolatkar Milind. kmilind@ces.iisc.ernet.in