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News Release 11-086
A Tale of Two Lakes: One Gives Early Warning Signal for Ecosystem Collapse
First experimental evidence that radical ecosystem change can be detected in advance
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![Photo of two lakes, Paul the smaller lake and Peter the manipulated lake in the background.](/news/mmg/media/images/two_lakes1_f.jpg)
A tale of two lakes: Paul (reference lake) is smaller lake; Peter (manipulated lake) in background.
Credit: Steve Carpenter
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![Photo of the explosion of young largemouth bass in the manipulated lake.](/news/mmg/media/images/two_lakes2_f.jpg)
An explosion of largemouth bass young-of-year accelerated the manipulated lake's changes.
Credit: Tim Cline
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![Photo of the high-frequency sampling equipment that monitored lake conditions.](/news/mmg/media/images/two_lakes3_f.jpg)
Automated high-frequency sampling equipment monitored lake conditions every five minutes.
Credit: James Coloso
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![Photo of a largemouth bass being measured by a researcher.](/news/mmg/media/images/two_lakes4_f.jpg)
Largemouth bass were sampled by electrofishing at night and returned alive to the lake.
Credit: Mike Pace
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![Photo of Tim Cline on the left and Lee Zinn on the right in a boat sampling minnows.](/news/mmg/media/images/two_lakes5_f.jpg)
Tim Cline (left), Lee Zinn (right) and others sampled minnows daily to track abundance of fishes.
Credit: Mike Pace
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![Cover of the April 29, 2011 issue of the journal Science.](/news/mmg/media/images/science_042911_f.jpg)
The researchers' work is described in the April 29, 2011 issue of the journal Science.
Credit: Copyright AAAS 2011
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