David Tillman at, I believe, Minnesota has done some elegant work
on plant competition, succession and diversity. His work has been
mostly with grasses. If you haven't already come across his work, I
strongly recommend it.
John
Date sent: Thu, 5 Aug 1999 23:51:28 -0400 (EDT)
From: Joel Brooks Gruver <jgruv@wam.umd.edu>
To: sanet <sanet-mg@ces.ncsu.edu>
Subject: stability in agroecosystems
> Hello to all...
>
> I am wondering if anyone is familiar with studies that looked at the
> population dynamics of non crop species in early succession
> agroecosystems. Are there studies that showed that under extended
> periods of uniform management/ecosystem disturbances (e.g. a long term
> cropping experiment with annual crops), populations of some non-crop
> species tended to stabilize while others did not ?
>
> Certainly there are studies of changes in weed and arthropod populations
> over time in long term experiments.
>
> Can anyone refer me to an article in which non-crop species
> population dynamics over time are discussed in terms of cropping system
> sustainability/unsustainability ?
>
> Joel Gruver
> Soil Quality Research
> U of MD
>
>
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John C. Mayne, Ph.D.
Southern SARE Program
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