2009 Fiscal Year Final Research Report
Temporal distribution and social evolution in female primates
| Project/Area Number |
19570230
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Anthropology
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| Research Institution | Okinawa University |
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Principal Investigator |
MATSUMOTO Akiko Okinawa University, 人文学部, 教授 (80369206)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 発情同期 / 配偶者選択 / 適応度 / チンパンジー / ヒヒ |
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| Research Abstract |
The purpose of this study is to examine social evolution of humans from their mating patterns and society systems by comparing the temporal distribution patterns of female estrus between baboons and chimpanzees. Both in chimpanzees and baboons, females asynchronized their estrous periods. One consequence of estrous asynchrony is male-biased operational sex ratio. There were three hypotheses for rising female fitness : increasing birth rate, patanity confusion, and rising sperm competition. I considered these three hypotheses by making a model.
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Research Products
(11 results)
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[Journal Article] Estrus cycle asynchrony in wild female chimpanzees, Pan troglodytes schweinfurthii.2007
Author(s)
Matsumoto-Oda A, Hamai M, Hayaki H, Hosaka K, Hunt KD, Kasuya E, Kawanaka K, Mitani JC, Takasaki H, Takahata Y
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Journal Title
Behav. Ecol. Sociobiol. 61
Pages: 611-618
Peer Reviewed
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