2011 Fiscal Year Final Research Report
The ecological study on biological conservation and sustainable management for endemic predators against a Japan-origin exotic invader
| Project/Area Number |
20405047
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Boundary agriculture
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| Research Institution | Kyoto University |
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Principal Investigator |
OSAWA Naoya 京都大学, 農学研究科, 准教授 (10221821)
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| Co-Investigator(Kenkyū-buntansha) |
YASUDA Hironori 山形大学, 農学部, 教授 (70202364)
TANAKA Chihiro 京都大学, 農学研究科, 教授 (60263133)
SATO Satoshi 山形大学, 農学部, 准教授 (70444023)
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| Project Period (FY) |
2008 – 2011
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| Keywords | 動物 / 昆虫 / 生態学 / 生態系修復・整備 / 侵入生物 / 害虫管理 / 保全生物 / ナミテントウ |
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| Research Abstract |
To clarify the coexistence mechanism between Japan-origin invasive and aggressive predator Harmonia axyridis and the related species, field and laboratory experiments were performed. From the field survey, H. axyridis was the most common among the aphidophagous predators at many invaded areas. The sibling species H. yedoensis sympatrically coexists with H. axyridis only on a pine tree to specialize at morphological and behavioral traits. The asymmetric mating interference in H. axyridis plays an important role on the limited habitatof H. yedoensis and the large habitat of H. axyridis.
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Research Products
(24 results)
