2012 Fiscal Year Final Research Report
Structure and dynamics of biological communities including multiple types of interactions such as mutualism and predation
| Project/Area Number |
22570026
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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 |
Ecology/Environment
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
NAMBA Toshiyuki 大阪府立大学, 大学院・理学系研究科, 教授 (30146956)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 群集 |
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| Research Abstract |
Effects of multiple types of interactions on dynamics and stabilityof ecological communities were revealed. Inclusion of predators and competitors into a system of plants and mutualists makes the communities more complex and stable. Competition at the basal trophic level makes the dynamical stability of food chains crucially dependent on the number of trophic levels. In a system of intraguild predation, the profitability of the basal resource and intermediate consumer can explain the puzzle why the intermediate consumer does not become extinct in a highly productive environment.
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