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Jealous females? Female competition and reproductive suppression in a wild promiscuous primate

Baniel, A; Cowlishaw, G; Huchard, E; (2018) Jealous females? Female competition and reproductive suppression in a wild promiscuous primate. Proceedings of the Royal Society B: Biological Sciences , 285 (1886) , Article 20181332. 10.1098/rspb.2018.1332. Green open access

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Abstract

Female–female competition over paternal care has rarely been investigated in promiscuous mammals, where discreet forms of male care have recently been reported despite low paternity certainty. We investigated female competition over paternal care in a wild promiscuous primate, the chacma baboon (Papio ursinus), where pregnant and lactating females establish strong social bonds (friendships) with males that provide care to their offspring. We tested whether pregnant and lactating females interfere with the sexual activity of their male friend to prevent new conceptions that might lead to the subsequent dilution of his paternal care. We found that pregnant and lactating females were more aggressive towards oestrous females when they had recently conceived themselves, and when the oestrous female was mate-guarded by, and showed greater sexual activity with, their male friend. This aggression also reduced the likelihood of conception of the targeted female. These findings indicate that females can aggressively prevent further conceptions with their offspring's carer through reproductive suppression. Competition over access to paternal care may play an important and underestimated role in shaping female social relationships and reproductive strategies in promiscuous mammalian societies.

Type: Article
Title: Jealous females? Female competition and reproductive suppression in a wild promiscuous primate
Open access status: An open access version is available from UCL Discovery
DOI: 10.1098/rspb.2018.1332
Publisher version: https://doi.org/10.1098/rspb.2018.1332
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: reproductive suppression, paternal care, intrasexual competition, primate, chacma baboon
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences
URI: https://discovery.ucl.ac.uk/id/eprint/10055766
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