| Project/Area Number |
24570099
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Nagoya University (2013-2015)
Osaka University (2012) |
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Principal Investigator |
Kei Tokita 名古屋大学, 情報科学研究科, 教授 (00263195)
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 群集生態 / 相互作用 / 多様性 / 種の豊富さのパターン / 国際研究者交流（米国他） / 国際情報交換（米国他） / 国際研究者交流（米国） / 国際情報交換（米国） / 中立モデル / 国際研究者交流（米国，英国，台湾，韓国） / 国際情報交換（米国，英国，台湾，韓国） / 国際研究者交流（英国，韓国，台湾，米国） / 国際情報交換（英国，韓国，台湾，中国，米国） / 国際研究者交流（英国） / 国際情報交換（英国，台湾） |
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| Outline of Final Research Achievements |
An ecological model with multiple species and the dependency of the species abundance patterns on various community parameters were theoretically analyzed. It has been clarified that the ratio of the intraspecifc/interspecies interactions, the symmetry of the interaction matrix, sparceness of the interaction matrix and the density ratio of mutualistic/competitive interactions respectively, respectively, plays an important role for the species abundance patterns. In special, for a community with sparse interaction matrix, a solution of all species coexistence and a multiple peaked species abundance distribution has been newly discovered. In the research period 2013-2015, four peer-reviewed journal papers were published and eight (incl. two invited and two symposium chair) international conference talk were given. In addition, two peer-reviewed journal papers will be published during this fiscal year.
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