2015 Fiscal Year Final Research Report
Feedback mechanisms of adaptive evolution and ecosysten metworks
| Project/Area Number |
25291102
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Ecology/Environment
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
UTSUMI Shunsuke 北海道大学, 北方生物圏フィールド科学センター, 准教授 (10642019)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 群集 / 進化 / 間接効果 / 表現型可塑性 / 遺伝子型 |
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| Outline of Final Research Achievements |
Effects of aphid and lacebug herbivory on reproductive success and flower visitor communities on tall goldenrods were investigated. Lacebug herbivory decreased flower number and floral nectar. In contrast, aphid herbivory increased them. Increased flowers increased abundance of pollinators and non-pollinators. Lacebug herbivory decreased seed production, while aphid herbivory increased it. Origin of Japanese goldenrods was explored using neutral genetic marker. We found that Japanese goldenrods came from Southeastern United States, and that genetic diversity has been maintained through gene flow since their establishment in Japan. Effects of diversity and selection in goldenrod genotypes from Honshu and Hokkaido were investigated. Although we did not find the diversity effect on plant growth, the selection effect in Hokkaido genotypes was detected. The diversity effect of plant genotypes was also found in aphid abundance.
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| Free Research Field |
群集生態学
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