| Project/Area Number |
18405009
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Ecology/Environment
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| Research Institution | Rikkyo University |
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Principal Investigator |
UEDA Keisuke Rikkyo University, 理学部, 教授 (00213348)
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| Co-Investigator(Kenkyū-buntansha) |
EGUCHI Kazuhiro 九州大学, 理学研究院, 助教 (60136421)
BISHIUMI Isao 国立科学博物館, 動物研究部, 研究員 (90290866)
TAKAGI Masaoki 大阪市大学, 理学部, 准教授 (70311917)
TAKASU Fugo 奈良大学, 理学部, 教授 (70263423)
濱尾 章二 国立科学博物館, 動物研究部, 研究官 (60360707)
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| Co-Investigator(Renkei-kenkyūsha) |
HAMAO Shoji 国立科学博物館, 附属自然教育園, 研究員 (60360707)
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| Project Period (FY) |
2006 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥13,190,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2009: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2008: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2007: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2006: ¥3,700,000 (Direct Cost: ¥3,700,000)
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| Keywords | カッコウ / 托卵 / 宿主 / 寄生 / 進化 / 共進化 / 軍拡競争 / 熱帯 / 繁殖システム / オーストラリア / マングローブ / 進化生物学 / 寄生者 / 行動生態 / ヒナ排除 / ミドリカッコウ / 社会寄生 / 労働寄生 / センニョムシクイ / 適応進化 |
|---|
| Research Abstract |
A new anti-parasitism behaviour was observed in the Large-billed Gerygone Gerygone magnirostris and the Mangrove Gerygone G. laevigaster which are hosts of the Little Bronze-cuckoo Chalcites (formally Chrysococcyx) minutillus. This behaviour, termed parasite nestling ejection, involves the physical removal of live parasite nestlings from active nests and represents a type of chick discrimination. The discovery of parasite nestling ejection by Gerygones represented a significant finding for anti-parasitic behaviour research at the nestling stage. Although the Little Bronze-cuckoo seemed to start parasitism to Large-billed Gerygone historically, then they seemed to explore the Mangrove Gerygone as a new host.
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