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Reproductive BiologyThe Natural History of the Crustacea, Volume 6$
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Rickey Cothran and Martin Thiel

Print publication date: 2020

Print ISBN-13: 9780190688554

Published to Oxford Scholarship Online: March 2021

DOI: 10.1093/oso/9780190688554.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 22 June 2021

Animal Personality and Investment in Reproduction: Hermit Crabs and Other Crustaceans as Model Organisms

Animal Personality and Investment in Reproduction: Hermit Crabs and Other Crustaceans as Model Organisms

(p.503) 18 Animal Personality and Investment in Reproduction: Hermit Crabs and Other Crustaceans as Model Organisms
Reproductive Biology

Mark Briffa

Oxford University Press

Animal personality has been demonstrated in a wide range of taxa, including crustaceans. This chapter defines personality as consistent variation in behavior among individuals. It describes related ideas about how individuals can differ in the way they adjust their behavior to match the current situation (“behavioral plasticity”) and how they might differ in how consistent their behavior is within a particular situation (“within individual variation”). Such behavioral variation may represent a component of wider syndromes encompassing among-individual differences in life history traits such as growth, metabolism, and fecundity. First, the chapter reviews studies that have tested these ideas in a range of crustacean species. It then focuses on a series of studies on the common European hermit crab Pagurus bernhardus. In both cases, it describes details of the experimental approaches and analyses used to study personality in crustaceans. While boldness appears to be a key personality trait in hermit crabs and other crustaceans, bold individuals are not necessarily those with the greatest success in acquiring resources or with the greatest life history productivity (i.e., investment in growth and reproduction). Rather, individuals that win fights and invest heavily in respiratory pigments and in reproduction appear to behave consistently more cautious when compared to other individuals from the same population. Despite these initial findings, there is a paucity of studies that investigate links between personality and mating behavior in crustaceans, or that investigate the behavior of females; these areas should be priorities for future work.

Keywords:   Animal personality, consistent behavior, behavioral plasticity, mating behavior, crustacean boldness, hermit crab behavior

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