Asymmetric effects of contaminant exposure during asymmetric contests in the hermit crab Pagurus bernhardus

Contaminant exposure is known to alter behaviour in a wide range of contexts, including animal contests. We exposed hermit crabs to sublethal concentrations of copper, a common contaminant in coastal ecosystems. When hermit crabs engage in shell fights over empty gastropod shells they adopt two distinct roles. Attackers initiate the fight and perform bouts of […]