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

Date

2019

Authors

Gruber, Jodie
Kahn, Andrew
Backwell, Patricia

Journal Title

Journal ISSN

Volume Title

Publisher

Academic Press

Abstract

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.

Description

Keywords

costebenefit ratio, fiddler crab, predator avoidance, risk taking, waiting game

Citation

Source

Animal Behaviour

Type

Journal article

Book Title

Entity type

Access Statement

Open Access

License Rights

CC BY-NC-ND

DOI

10.1016/j.anbehav.2019.09.014

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