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Why do vulnerable mayflies thrive in trout streams?

Authors: Peckarsky, B. L.; Encalada, A. C.; McIntosh, A. R.
Year: 2011
Journal: American Entomologist, Vol. 57(3), pp. 152-164
Publisher: UNKNOWN
DOI: 10.1093/ae/57.3.152
Keywords: MAYFLIES, PREDATION, TROUT, STREAMS, RECRUITMENT

Abstract

higher densities in streams with the highest risk of vertebrate predation. Along with many students and other colleagues, we have spent many years trying to understand that perplexing pattern. Adaptive behavior and life history strategies that can be induced experimentally by predator risk result in equivalent probabilities of surviving the larval stage, but do not explain the high relative abundance of Baetis populations in streams -

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