Predator community and resource use jointly modulate the inducible defense response in body height of crucian carp

Ilaria De Meo, Kjartan Østbye, Kimmo Kahilainen, Brian Hayden, Christian Fagertun & Antonio Poléo
Phenotypic plasticity can be expressed as changes in body shape in response to environmental variability. Crucian carp (Carassius carassius), a widespread cyprinid, displays remarkable plasticity in body morphology and increases body depth when exposed to cues from predators, suggesting the triggering of an anti-predator defense mechanism. However, these morphological changes could also be related to resource use and foraging behavior, as an indirect effect of predator presence. In order to determine whether phenotypic plasticity in...
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