Theoretical study in evolution and maintenance of symbiotic systems
Project/Area Number |
23570034
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Ecology/Environment
|
Research Institution | Osaka Prefecture University |
Principal Investigator |
EZOE Hideo 大阪府立大学, 理学(系)研究科(研究院), 講師 (90275230)
|
Project Period (FY) |
2011 – 2013
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
Keywords | 進化生態 / 数理モデル / 相利共生 / 格子モデル / 空間構造 / 1対多相利共生 / 必須相利共生系 / 相利 / 寄生 / 花の中絶 / ギルド内捕食 / facilitation / 病気 |
Research Abstract |
I developed several general mathematical models on the population and evolutionary dynamics of symbiotic systems, especially mutualistic ones. I observed their characteristic behaviors and clarified the conditions with which those systems can evolve and persist. The results suggest that mutualism are more likely to evolve in harsher environments. Moreover, variation in populations should be essential for evolution and stable persistence of symbiosis. Especially parasites might play a key role for maintenance of the systems, while so far they have been considered as detrimental to them.
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Report
(4 results)
Research Products
(30 results)