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Flexible grouping patterns in a western and eastern chimpanzee community
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dc.contributor.author | Koops, Kathelijne | |
dc.contributor.author | Akankwasa, Walter | |
dc.contributor.author | Camara, Henry Didier | |
dc.contributor.author | Fitzgerald, Maegan | |
dc.contributor.author | Keir, Alex | |
dc.contributor.author | Mamy, Gnan | |
dc.contributor.author | Matsuzawa, Tetsuro | |
dc.contributor.author | Péter, Hella | |
dc.contributor.author | Vicent, Kizza | |
dc.contributor.author | Zuberbühler, Klaus | |
dc.contributor.author | Hobaiter, Catherine | |
dc.date.accessioned | 2024-01-23T11:30:12Z | |
dc.date.available | 2024-01-23T11:30:12Z | |
dc.date.issued | 2024-01-22 | |
dc.identifier | 298435842 | |
dc.identifier | 7a5fa38e-7267-4567-a4ef-0109d5ad7fe3 | |
dc.identifier | 85182851046 | |
dc.identifier.citation | Koops , K , Akankwasa , W , Camara , H D , Fitzgerald , M , Keir , A , Mamy , G , Matsuzawa , T , Péter , H , Vicent , K , Zuberbühler , K & Hobaiter , C 2024 , ' Flexible grouping patterns in a western and eastern chimpanzee community ' , American Journal of Primatology , vol. Early View , e23593 . https://doi.org/10.1002/ajp.23593 | en |
dc.identifier.issn | 0275-2565 | |
dc.identifier.other | Jisc: 1692505 | |
dc.identifier.other | publisher-id: ajp23593 | |
dc.identifier.other | ORCID: /0000-0001-8378-088X/work/151761527 | |
dc.identifier.other | ORCID: /0000-0002-3893-0524/work/151761729 | |
dc.identifier.uri | https://hdl.handle.net/10023/29063 | |
dc.description | Research was supported by grants from the Gates Cambridge Trust (Cambridge, UK), the Lucie Burgers Foundation for Comparative Behaviour Research (Netherlands), Homerton College and Newnham College (Cambridge, UK), SNSF Eccellenza Professorial Fellowship (no. PCEFP3_186967) to K. Koops, by funding from the European Union's 8th Framework Program, Horizon 2020, under grant agreement no 802719 to C. Hobaiter, and MEXT (#12002009, #16002001, #20002001, #24000001, #16H06283) grants to T. Matsuzawa. | en |
dc.description.abstract | Primate social organizations, or grouping patterns, vary significantly across species. Behavioral strategies that allow for flexibility in grouping patterns offer a means to reduce the costs of group living. Chimpanzees (Pan troglodytes) have a fission-fusion social system in which temporary subgroups (“parties”) change in composition because of local socio-ecological conditions. Notably, western chimpanzees (P. t. verus) are described as showing a higher degree of bisexual bonding and association than eastern chimpanzees, and eastern female chimpanzees (P. t. schweinfurthii) are thought to be more solitary than western female chimpanzees. However, reported comparisons in sociality currently depend on a small number of study groups, particularly in western chimpanzees, and variation in methods. The inclusion of additional communities and direct comparison using the same methods are essential to assess whether reported subspecies differences in sociality hold in this behaviorally heterogeneous species. We explored whether sociality differs between two communities of chimpanzees using the same motion-triggered camera technology and definitions of social measures. We compare party size and composition (party type, sex ratio) between the western Gahtoy community in the Nimba Mountains (Guinea) and the eastern Waibira community in the Budongo Forest (Uganda). Once potential competition for resources such as food and mating opportunities were controlled for, subspecies did not substantially influence the number of individuals in a party. We found a higher sex-ratio, indicating more males in a party, in Waibira; this pattern was driven by a greater likelihood in Gahtoy to be in all-female parties. This finding is the opposite of what was expected for eastern chimpanzees, where female-only parties are predicted to be more common. Our results highlight the flexibility in chimpanzee sociality, and caution against subspecies level generalizations. | |
dc.format.extent | 1365347 | |
dc.language.iso | eng | |
dc.relation.ispartof | American Journal of Primatology | en |
dc.subject | Sociality | en |
dc.subject | Party composition | en |
dc.subject | Party size | en |
dc.subject | Camera trapping | en |
dc.subject | Chimpanzee | en |
dc.subject | QL Zoology | en |
dc.subject | RR-NDAS | en |
dc.subject.lcc | QL | en |
dc.title | Flexible grouping patterns in a western and eastern chimpanzee community | en |
dc.type | Journal article | en |
dc.contributor.sponsor | European Research Council | en |
dc.contributor.institution | University of St Andrews. School of Psychology and Neuroscience | en |
dc.contributor.institution | University of St Andrews. Institute of Behavioural and Neural Sciences | en |
dc.contributor.institution | University of St Andrews. Centre for Social Learning & Cognitive Evolution | en |
dc.contributor.institution | University of St Andrews. Organic Semiconductor Centre | en |
dc.identifier.doi | 10.1002/ajp.23593 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | 802719 | en |
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