[APWG] Abstract of Opposing Effects of Native and Exotic Herbivores on Plant Invasions - Science article
Patricia_DeAngelis at fws.gov
Patricia_DeAngelis at fws.gov
Wed Mar 15 09:35:06 CST 2006
Actually, the url I provided is the full
article...http://www.sciencemag.org/cgi/content/full/311/5766/1459 - I
thought it was accessible to all.
Patricia S. De Angelis, Ph.D.
Botanist - Division of Scientific Authority
Chair - Plant Conservation Alliance - Medicinal Plant Working Group
US Fish & Wildlife Service
4401 N. Fairfax Dr., Suite 750
Arlington, VA 22203
703-358-1708 x1753
FAX: 703-358-2276
Working for the conservation and sustainable use of our green natural
resources.
<www.nps.gov/plants/medicinal>
Craig Dremann <craig at ecoseeds.com>
03/15/2006 10:24 AM
To
Patricia_DeAngelis at fws.gov
cc
apwg at lists.plantconservation.org
Subject
Abstract of Opposing Effects of Native and Exotic Herbivores on Plant
Invasions - Science article
Dear All,
Interesting article, but unless you subscribe to SCIENCE, or pay for the
article, on-line you can only read the free abstract, which follows:
Science 10 March 2006: Vol. 311. no. 5766, pp. 1459 - 1461
Reports
Opposing Effects of
Native and Exotic
Herbivores on Plant
Invasions
John D. Parker,*
Deron E. Burkepile, Mark E. Hay
Exotic species are widely assumed to
thrive because they lack natural enemies in
their new ranges. However, a
meta-analysis of 63 manipulative field
studies including more than 100 exotic
plant species revealed that native
herbivores suppressed exotic plants,
whereas exotic herbivores facilitated both
the abundance and species richness of
exotic plants. Both outcomes suggest that
plants are especially susceptible to novel,
generalist herbivores that they have not
been selected to resist. Thus, native
herbivores provide biotic resistance to
plant invasions, but the widespread
replacement of native with exotic
herbivores eliminates this ecosystem
service, facilitates plant invasions, and
triggers an invasional "meltdown."
School of Biology, Georgia Institute of
Technology, Atlanta, GA 30332, USA.
* Present address: Department of Ecology
and Evolutionary Biology, Cornell
University, Ithaca, NY 14853, USA.
E-mail: jdp52{at}cornell.edu
To whom correspondence should be
addressed. E-mail:
mark.hay{at}biology.gatech.edu
-----------------------------------
Exotic herbivores like sheep and cows?
Sincerely, Craig Dremann (650) 325-7333
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