of the Mechanism Underlying the Island Rule : A Case Study of the Birds of the Southern Ryukyus.
| Project/Area Number |
20770070
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Yamashina Institute for Ornithology |
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Principal Investigator |
YAMASAKI Takeshi Yamashina Institute for Ornithology, 自然誌研究室, 研究員 (70390755)
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| Project Period (FY) |
2009 – 2011
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 進化 / 種分化 / 島の規則 / 体サイズ / 鳥類 / 先島諸島 / 烏類 |
|---|
| Research Abstract |
Corvus macrorhynchos is one example of species following the island rule. The southern Ryukyus population as a whole has a much smaller body size than the neighboring Taiwanese population. In this case study, I conducted morphological, ecological and genetic examinations on four island populations in the Southern Ryukyus and compared them with the putative ancestral population in Taiwan. Although the studied islands were located very close to each other, there were found remarkable differences in morphology, ecology and genetics. In the Southern Ryukyus, the most massively dwarfed was the population ecologically the most similar to the ancestral Taiwanese population.
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Report
(4 results)
Research Products
(9 results)
