2010 Fiscal Year Final Research Report
Evaluation of ecological risks of alien Chinese giant salamander on native Japanese giant salamander
| Project/Area Number |
20510215
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Resource conservation science
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| Research Institution | Kyoto University |
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Principal Investigator |
MATSUI Masafumi Kyoto University, 大学院・人間・環境学研究科, 教授 (40101240)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 両生類 / 外来種 / オオサンショウウオ / 生態リスク |
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| Research Abstract |
Over three years, giant salamanders were captured at Kamogawa, Kyoto City, and studied for their genetic variation in mtDNA. allozymes, and microsatellite genes. When all results were combined, Japanese, Chinese, F1, and F2 or back-crossed individuals accounted for 1 (1.2%), 0 (0%) , 25 (28.7%) , and 61 (70.1%) , respectively, in number. Genetic pollution of the Japanese species by alien Chinese species is at its maximum and the Japanese species is now immediately before extinction.
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