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Heightened perception of competition hastens courtship

Accepted version
Peer-reviewed

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Type

Article

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Authors

Santori, C 
Bussière, LF 
Houslay, TM 

Abstract

jats:titleAbstract</jats:title>jats:pWhen animals use costly labile display or signal traits to display to the opposite sex, they face complex decisions regarding the degree and timing of their investment in separate instances of trait expression. Such decisions may be informed by not only the focal individual’s condition (or pool of available resources) but also aspects of the social environment, such as perceptions of same-sex competition or the quality of available mates. However, the relative importance of these factors to investment decisions remains unclear. Here, we use manipulations of condition (through dietary nutrition), recent social environment (exposure to a silenced male, nonsilenced male, female, or isolation), and female mating history (single or multiple male) to test how quickly male decorated crickets (Gryllodes sigillatus) decide to begin courting an available female. We find that males that were previously housed with nonsilenced males started courting the female earlier than other males. Females only mounted males after courtship began. Our results suggest a strong effect of the perception of competition on the decision to invest resources in sexual signaling behavior and that females might exert directional selection on its timing.</jats:p>

Description

Keywords

condition dependence, courtship, Gryllodes sigillatus, phenotypic flexibility, sexual selection, sexual signaling, social experience

Journal Title

Behavioral Ecology

Conference Name

Journal ISSN

1045-2249
1465-7279

Volume Title

31

Publisher

Oxford University Press (OUP)

Rights

All rights reserved