2011 Fiscal Year Final Research Report
Ecological Radiation and Social Evolution of Malagasy Endemic Vangas(Aves : Vangidae)
| Project/Area Number |
21405007
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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 | Joetsu University of Education |
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Principal Investigator |
NAKAMURA Masahiko 上越教育大学, 大学院・学校教育研究科, 教授 (90272880)
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| Co-Investigator(Kenkyū-buntansha) |
NISHIUMI Isao 国立科学博物館, 動物研究部, 研究員 (90290866)
HORI Michio 京都大学, 大学院・理学研究科, 教授 (40112552)
MORI Akira 京都大学, 大学院・理学研究科, 准教授 (80271005)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 生態 / 進化 / 適応放散 / 社会 |
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| Research Abstract |
The family Vangidae is endemic to Madagascar(17 species) and provides one of the most striking examples of adaptive radiation. In contrast to morphology and foraging ecology, little is known about mating system of each species, except for the Rufous Vanga. The Rufous Vanga has a cooperative breeding system that young males act as helpers. Is this cooperative breeding system present among other vangas as well or is this breeding system specific to the Rufous Vanga within this group? This question is our starting point. Our studies show that 5 of 17 species were cooperative breeders and 10 were monogamous species(two were not able to study). Cooperative breeding was not concentrated within a specific taxonomic group of vanga but occurred in the dry forests.
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