| 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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| 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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