Functional diversity among predators of a freshwater snail imposes an adaptive trade-off for shell morphology

Abstract

We explored how functional diversity among predators of the freshwater snail Physa creates an adaptive trade-off for the snail’s shell morphology. Physid shells range continuously between elongate and rotund in overall shape. The protection conferred by alternative shell shapes depends on the mode of attack employed by predators. Predators attack Physa… (More)

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