2015 Fiscal Year Final Research Report
Studies on life history and biogeography for in-situ conservation of terrestrial hermit crabs
| Project/Area Number |
24310171
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Resource conservation science
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| Research Institution | Tokyo University of Marine Science and Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KITADA Shuichi 東京海洋大学, 学術研究院, 教授 (10262338)
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | 保全生物 / 生物多様性 / 在来種保全 / 生物地理 / 集団遺伝 |
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| Outline of Final Research Achievements |
We evaluated the adaptations of early life history stages, i.e., embryos, larvae, and juveniles to environmental factors including salinity and temperature in terrestrial hermit crabs Birgus latro and five Coenobita species which are distributed in southern Japanese islands. Coenobita purpureus has the most lower thermal tolerance limit and its overwintering population was found in the Boso Peninsula and Miura Peninsula of the main Island of Japan. Additionally, Coenobita violascens showed a specific distribution; it inhabited the estuary including mangrove areas. Furthermore, our population genetic studies revealed that the C. purpureus population in the Ogasawara Islands was genetically distinct from other regions with genetic panmixia.
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| Free Research Field |
生物資源保全学
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