| Project/Area Number |
21770265
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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 |
Physical anthropology
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| Research Institution | 株式会社林原生物科学研究所 (2011)
Hayashibara Biochemical Laboratories, Inc. Great Ape. Research Institute (2009-2010) |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Keywords | 霊長類 / 化石 / 哺乳類 / 距骨 / 体重推定 / ニホンザル / 種内変異 |
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| Research Abstract |
Although the astragalus(=ankle bone) of mammals is useful for the fossil studies, its size variation and relationship with the body mass have not been well documented. In this study, I examined the relationship between the astragalar size and body mass in land mammals, making regression functions to estimate the body mass from the astragalar size. Using the regression functions, I estimated the body masses of several fossil mammals and made some taxonomic reappraisals. Furthermore, I investigated the intraspecific variation of the astragalus in Japanese Monkey(Macaca fuscata). The correlation between the astragalar size and the molar size was low. There is a difference between the sexes in the astragalar size.
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