| Project/Area Number |
01041079
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | Field Research |
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| Research Institution | Osaka City University |
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Principal Investigator |
YAMAGISHI Satoshi Faculty of Science, Osaka City University ; Professor, 理学部, 教授 (80101286)
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| Co-Investigator(Kenkyū-buntansha) |
EGUCHI Kazuhiro Faculty of Science, Kyushu University ; Tutor, 理学部, 助手 (60136421)
KOYAMA Naoki The Center for African Area Studies, Kyoto University ; Associate Professor, アフリカ地域研究センター, 助教授 (40027496)
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| Project Period (FY) |
1989 – 1991
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| Project Status |
Completed (Fiscal Year 1991)
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| Budget Amount *help |
¥24,500,000 (Direct Cost: ¥24,500,000)
Fiscal Year 1991: ¥9,500,000 (Direct Cost: ¥9,500,000)
Fiscal Year 1990: ¥7,500,000 (Direct Cost: ¥7,500,000)
Fiscal Year 1989: ¥7,500,000 (Direct Cost: ¥7,500,000)
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| Keywords | Ecological Radiation / Lemurs / Vangidae / Social Structure / ベロ-シファカ / 社会構造 / 適応放散 / 共存 / 採食行動 / オオハシモズ科 / 原猿 / 採食習性 / 生態的地位 |
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| Research Abstract |
In Madagascar, a very peculiar fauna has been evolved after segregation from African Continent in late Cretaceous Period. The aim of this study is to reveal the adaptive radiation in higher vertebrates and evaluate influences of ecological factors such as the habitat, food resources, competitive species, etc., on their forms, behaviors and social structure. Lemurs and vangid birds are chosen as the materials for this study. How greatly these animals segregate their feeding niche were investigated. And how to relate these segregations into their social structures will be discussed.
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