Sex‐specific shifts in morphology and diet in a frog after 50 years of anthropogenic habitat fragmentation

Abstract

Aim: Phenotypic shifts are commonly observed when animals face insular habitat change and may reflect ongoing stresses on individuals. However, the generality and the driving processes of this 'island rule' remain equivocal, notably in amphibians.Here, we investigate both morphological and dietary shifts in a frog using a mosaic of human-created islands to assess the potential operating mechanisms underlying these phenotypic responses.