Predator exposure alters stress physiology in guppies across timescales.

Abstract

In vertebrates, glucocorticoids mediate a wide-range of responses to stressors. For this reason, they are implicated in adaptation to changes in predation pressure. Trinidadian guppies (Poecilia reticulata) from high-predation environments have repeatedly and independently colonized and adapted to low-predation environments, resulting in parallel changes in… (More)
DOI: 10.1016/j.yhbeh.2013.12.010

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