Loss of just one species makes big difference in freshwater ecosystem, study finds

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The flannelmouth characin is native to South American rivers. (Photo by Brad Taylor)
The flannelmouth characin is native to South American rivers. (Photo by Brad Taylor)

Researchers at Dartmouth, Cornell University, and the University of Wyoming have learned that the removal of just one important species in a freshwater ecosystem can seriously disrupt how that environment functions. This finding contradicts earlier notions that other species can jump in and compensate for the loss.


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