| Project/Area Number |
19770019
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Ecology/Environment
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| Research Institution | Ryukoku University |
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Principal Investigator |
KONDOH Michio Ryukoku University, 理工学部, 准教授 (30388160)
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| Project Period (FY) |
2007 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥1,580,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥800,000 (Direct Cost: ¥800,000)
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| Keywords | 食物網 / 複雑ネットワーク / 適応 / ネスト構造 / 脳 / 対捕食者防御 / 適応的食物網仮説 |
|---|
| Research Abstract |
Combining theoretical modeling and empirical approaches, I have explored the properties of food web structure and population dynamics emerging from adaptation, an essential characteristic of living organisms. The major results are (i) that an adaptive diet choice and anti-predator defense alter the complexity-stability relationship of food web ; (ii) that food-chain length and its response to environmental variables in natural ecosystems may be explained as an emergent property of interacting adaptive foragers ; (iii) that food webs are built up with nested trophic modules, which optimal diet choice may give rise to ; (iv) prey-predator pairs in natural ecosystems are related to their relative brain sizes ; (v) that the complex food web of Caribbean ecosystem can be viewed as a set of interacting simple modules, nonrandomly arranged to enhance the maintenance of biodiversity.
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