The mate pursuit-predation avoidance tradeoff in the virile crayfish, Orconectes virilis |
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Authors: | Keith W. Pecor |
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Affiliation: | a Department of Ecology and Evolutionary Biology & Museum of Zoology, University of Michigan, Ann Arbor, MI, USA |
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Abstract: | To better understand the tradeoff between mate pursuit and predation risk avoidance, the responses of male virile crayfish (Orconectes virilis) to female sex pheromone and conspecific alarm cue, alone and in combination were tested. Male crayfish were more active and exhibited less antipredator behavior in the pheromone treatment than in either the pheromone + alarm or alarm treatment. The results suggest a tradeoff in favor of risk avoidance when pheromone and risk stimuli are encountered together. |
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Keywords: | Crayfish Orconectes predation risk sex pheromone tradeoffs |
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