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The great pond experiment: Regional vs. local biodiversity
Date:5/27/2010

at emerges only at a certain scale. Beta diversity may emerge clearly only if we look regionally rather than locally.

Restorationists say ecology is plagued by the myth of the carbon copy, the idea that we can easily make an identical copy of an ecosystem because community assembly is predictable and always ends up in the same place.

Degrading an ecosystem resets it to an earlier stage, it was thought, from which it will develop in a predictable fashion to an end point.

But experience shows that replacement ecosystems often fall short of the original ones.

Chase's pond experiment suggests why.

Far from being carbon copies, ecosystems are historical artifacts, their final form a sensitive record of their past.


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Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert

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