| Project/Area Number |
22500250
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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 |
Statistical science
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| Research Institution | Hokkaido University |
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Principal Investigator |
KUBO Takuya 北海道大学, 大学院・地球環境科学研究院, 助教 (80344498)
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| Co-Investigator(Kenkyū-buntansha) |
ITO Fuminori 香川大学, 農学部, 教授 (50260683)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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| Keywords | アルゼンチンアリ / 外来性侵入生物 / 群集動態 / 時系列データ解析 / 階層ベイズモデル / 外来侵入生物 / 分布拡大 / 群集生態学 / 統計モデル / 空間相関 / パラメーター推定 / 特定外来生物 |
|---|
| Research Abstract |
We analyzed the expanding dynamics and impact of Argentine ants (Linepithema humile), an invasive alien species in Japan, on native ant community using Bayesian statistical models based on a long-term monitoring data taken from 2000 to 2012 in Hatsukaichi-city, Japan. The results clearly showed that the Argentine ants in high density decreased the density of native ant species, while the ecological factors controlling on their expansion could not detected.
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