Risks and rewards: balancing costs and benefits of predator avoidance in a fiddler crab

Autor: Jodie Gruber, Patricia R. Y. Backwell, Andrew T. Kahn
Rok vydání: 2019
Předmět:
Zdroj: Animal Behaviour. 158:9-13
ISSN: 0003-3472
DOI: 10.1016/j.anbehav.2019.09.014
Popis: The decision to take risks in the presence of a predator involves complex trade-offs between immediate survival and future reproduction. Individuals may gain fitness advantages if they are able to optimally alter their risk-taking strategies depending on the differential costs and benefits of risky behaviours across contexts. Male fiddler crabs (Austruca mjoebergi) exhibited a higher propensity to take risks in the presence of a female compared with conspecifics that were not presented with a female during both mating and nonmating periods. Contrary to predictions, however, risk-taking behaviour did not differ between mating and nonmating periods.
Databáze: OpenAIRE