2012 Fiscal Year Final Research Report
Evolution of ecological traits in a native weed driven by the reproductive interference by allied alien species
| Project/Area Number |
22710240
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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 |
Resource conservation science
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| Research Institution | Osaka City Institute of Public Health and Environmental Sciences |
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Principal Investigator |
TAKAKURA Kouichi 大阪市立環境科学研究所, その他部局, 研究員 (50332440)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 種間送粉 / 繁殖干渉 / 在来種保全 |
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| Research Abstract |
A native annual herb, Veronica polita lilacina, has been known to be found at crevice of stone walls. In this study, I showed that the inter-specific pollination from the allied alien species, V. persica, decreased the seed-set of the natives and this caused the decrease of the natives, that the original habitat of the natives was on the ground and that the seed-dispersal mutualism with a diverse ant species helped to alter the habitat to the stone wall environment based on experiments and field surveys among islands in the Seto Inland Sea.
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