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Female chimpanzees adjust copulation calls according to reproductive status and level of female competition

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Byrne_2016_AB_Female_AM.pdf (1.007Mb)
Date
03/2016
Author
Fallon, Brittany Laurie Ann
Neumann, C
Byrne, Richard William
Zuberbuhler, Klaus
Keywords
Chimpanzee
Parity
Female competition
Copulation call
Sexual signal
RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
QH301 Biology
NDAS
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Abstract
Female chimpanzees (Pan troglodytes) are usually depicted as sexually submissive and bound by male coercion, because males are able to monopolize oestrous females, limiting a female's options for mate choice. We present behavioural data from a group of wild chimpanzees during a rare period in which up to 10 females cycled simultaneously, which prevented males from monopolizing oestrous females, thus changing the dynamic of male-female sexual interactions. Overall, we found that nulliparous and parous females employed different copulation calling strategies, reflecting their relative reproductive attractiveness and social standing within the community. Male partner rank, copulation duration, and dominant male audience further influenced calling behaviour, and there was a non-significant trend for females to increase calling as the number of cycling females increased. We conclude that female chimpanzees are capable of adjusting their copulation calling flexibly, by taking into account their own sexual attractiveness in order to incite male competition.
Citation
Fallon , B L A , Neumann , C , Byrne , R W & Zuberbuhler , K 2016 , ' Female chimpanzees adjust copulation calls according to reproductive status and level of female competition ' , Animal Behaviour , vol. 113 , pp. 87-92 .
Publication
Animal Behaviour
Status
Peer reviewed
ISSN
0003-3472
Type
Journal article
Rights
Copyright © 2016 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at: https://dx.doi.org/10.1016/j.anbehav.2015.12.028
Description
This project has received funding from the European Union's Seventh Framework Programme for research, technological development, and demonstration under grant agreement no. 283871.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/10190

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