Eco-evolutionary dynamics of predator-prey systems : experimental study using plankton microcosms
| Project/Area Number |
19687002
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Ecology/Environment
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| Research Institution | The University of Tokyo |
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Principal Investigator |
YOSHIDA Takehito The University of Tokyo, 大学院・総合文化研究科, 准教授 (40447321)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥25,220,000 (Direct Cost: ¥19,400,000、Indirect Cost: ¥5,820,000)
Fiscal Year 2009: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2007: ¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
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| Keywords | 個体群動態 / 進化 / ケモスタット / プランクトン / クロレラ / ワムシ |
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| Research Abstract |
Organisms can evolve at a very short-time scale and such rapid evolution has been reported by many studies. This study focused on how rapid evolution influences population and evolutionary dynamics. I found that there was a substantial variation in the shape of a tradeoff between predation resistance and competitive ability in an algal population, which produces the genetic diversity that makes rapid evolution possible to occur. Then, I observed strange population dynamics of a predator-prey system, depending on the shape of the tradeoff.
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Report
(4 results)
Research Products
(17 results)
