Ignorance is not bliss: Evolutionary naïveté in an endangered desert fish and implications for conservation

Craig Stockwell, Craig Stockwell, Madison Schmelzer, Bailey Gillis, Cody Anderson & Brian Wisenden
Predator naiveté has been invoked to explain the impacts of non-native predators on isolated populations that evolved with limited predation. Such impacts have been repeatedly observed for the endangered Pahrump poolfish, Empetrichthys latos, a desert fish species that evolved in isolation since the end of the Pleistocene. We tested Pahrump poolfish anti-predator responses to conspecific chemical alarm cues released from damaged epidermal tissue in terms of fish activity and water column position. Pahrump poolfish behavioural...
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