2013 Fiscal Year Final Research Report
Evaluation of population units considering population dynamics, genetic structure, and life history variation
| Project/Area Number |
23770013
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Ecology/Environment
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| Research Institution | Hokkaido University |
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Principal Investigator |
KOIZUMI Itsuro 北海道大学, 創成研究機構, 特任助教 (50572799)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 個体群動態 / 個体群ユニット / 進化的に重要な単位（ESU) / 同調性 / 遺伝的構造 / 生活史形質 / 地理的変異 / サケ科魚類 |
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| Research Abstract |
This study examined "population units" with long-term data on salmonid fish, considering population dynamics, genetic structure, and life history variation. Microsatellite DNA analysis indicated genetic homogeneity for stream groups within 5-10km. However, demographic independency was suggested even among genetically non-divergent groups. In addition, despite significant variations in life history traits among streams, no geographic cluster was observed. This study suggested that population units can vary depending on the entities we focus.
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