| Project/Area Number |
10041168
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| Research Category |
Grant-in-Aid for Scientific Research (A).
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
生態
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| Research Institution | Tokai-Gakuen University (2000)
Tokai Gakuen Women’s College (1999)
Kyoto University (1998) |
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Principal Investigator |
SUGIYAMA Yukimaru Tokai-Gakuen University, Faculty of Humanities, Professor, 人文学部, 教授 (20025349)
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| Co-Investigator(Kenkyū-buntansha) |
MYOWA-YAMAKOSHI Masako Kyoto University, Primate Research Institute, Research Fellow, 霊長類研究所, 日本学術振興会特別研究員
YAMAKOSHI Gen Kyoto University, Post-Graduate School of Asia-African Studies, Assistant Professor, アジアアフリカ地域研究所, 助手 (00314253)
MATSUZAWA Tetsuro Kyoto University, Primate Research Institute, Professor, 霊長類研究所, 教授 (60111986)
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| Project Period (FY) |
1998 – 2000
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| Keywords | chimpanzee / algae-scooping / leaf-cushion / tool-using / tool-compoite / behavioral comparison among local chimpanzee populations / genetic-comparison among local chimpanzee populations / DNA analysis |
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| Research Abstract |
Since 1976 behavior and ecology of a group of wild chimpanzees at Bossou, south-eastern Guinea, has been studies with identification of all individuals. During those years adolescent males as well as females were supposed to have dispersed. This is different phenomenon from other research sites. For making clear this local difference adjacent populations of chimpanzees at Monts Nimba and Dieke have been preliminarily studied. Feces and urine samples are under analysis for genetic variation.
Bossou chimpanzees are characterized for their rich variation of tool-using behavior. 19 out of 27 chimpanzee tool-using behaviors and 5 out of 8 tool-composite using have been found at Bossou. Even for the last 3 years algae-scooping and leaf-cushion using were newly found. Development and learning of cultural behaviors and local difference are being studied.
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