Patterns of coalition formation in long-tailed Macaques (Macaca fascicularis) in Indonesia, Kalimantan.
In this study, kin selection, reciprocal altruism and mutualism were proposed to influence the patterns of coalition formation in a group of free-ranging long-tailed macaques (Macaca fascicularis). Coalitionary support has shown significant relationship with kinship and reciprocation of the supporti...
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Format: | Final Year Project |
Language: | English |
Published: |
2011
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Online Access: | http://hdl.handle.net/10356/45144 |
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Institution: | Nanyang Technological University |
Language: | English |
Summary: | In this study, kin selection, reciprocal altruism and mutualism were proposed to influence the patterns of coalition formation in a group of free-ranging long-tailed macaques (Macaca fascicularis). Coalitionary support has shown significant relationship with kinship and reciprocation of the supportive act itself. There was no evidence grooming-support interchange. Examination of sex differences had suggested that females are nepotistic towards their maternal kin and for males; mutualism was identified as the main influence to providing agonistic support. In addition, due to high despotism in long-tailed macaques, individuals engaged in low cost conservative and bridging coalitions, which can serve as a way to maintain one’s rank. This showed that most coalitions formed in the group reinforced the existing hierarchy. |
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