2009 Fiscal Year Final Research Report
Colonization and speciation mechanisms of an invading insect pest
| Project/Area Number |
18405023
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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 |
Applied entomology
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| Research Institution | Kobe University |
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Principal Investigator |
TAKEDA Makio Kobe University, 大学院・農学研究科, 教授 (20171647)
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| Co-Investigator(Kenkyū-buntansha) |
GOMI Tadashi 広島県立大学, 生命環境学部, 准教授 (80316132)
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| Project Period (FY) |
2006 – 2009
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| Keywords | 生殖隔離 / 同所的種分化 / 概日振動 / 休眠 / 臨界日長 / 化性 |
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| Research Abstract |
Hyphantria cunea has a sibling species in the North America. We investigated the mode of speciation and the effect of global warming on the life cycle adaptation, the two aspects that colonizing species faces and undergoes adaptation after colonization, i.e., competition and adaptation to lacal climatic condition. The results suggest that the two sibling species are distinct species and the reproductive isolation is effected by differentiation in circadian clock and seasonal life cycle. The transition from bivoltine/trivoltine life cycle steadily moves northerly year by year, probably pushed by global warming.
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[Journal Article] Shift of northern limit in the trivoltine area of Hyphantria cunea (Lepidoptera: Arctiidae) in districts along the Sea of Japan.2009
Author(s)
Gomi, T., Adachi, K., Shimizu, A., Tanimoto, Kawabata, E., Takeda, M.
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Journal Title
Applied Entomology and Zoology 44
Peer Reviewed
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