| Project/Area Number |
23780054
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Applied entomology
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| Research Institution | National Agriculture and Food Research Organization |
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Principal Investigator |
MATSUKURA Keiichiro 独立行政法人農業・食品産業技術総合研究機構, 九州沖縄農業研究センター 生産環境研究領域, 主任研究員 (50414800)
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| Co-Investigator(Renkei-kenkyūsha) |
WADA Takashi 農業・食品産業技術総合研究機構, 九州沖縄農業研究センター, 非常勤職員
IZUMI Yohei 岡山大学, 資源生物科学研究所, 技術専門職員 (10457210)
YOSHIDA Kazuhiro 農業・食品産業技術総合研究機構, 九州沖縄農業研究センター, 特別研究員
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 侵略的外来種 / 遺伝的変異 / 交雑 / 耐寒性 / 天敵 / 巻貝 / 分子系統樹 / 水稲 / 淡水 / メッシュ気候値 / 捕食性天敵 |
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| Research Abstract |
We clarified current distribution of two invasive apple snails, Pomacea canaliculata and P. maculata in East and Southeast Asia, and ecological factors restricting their distribution area. Pomacea canaliculata were distributed widely from Southeast Asia to temperate Japan (Kanto Plain), whereas northern disrbitution limit of P. maculata was Iriomote Island. We demonstrated that P. canaliculata and P.maculata could hybridize and found the hybrid snails in field. The hybrid snails had an intermediated distribution range between the two snails with a northern distribution limit of Pusan, Korea. The most important factor causing the different distribution ranges among the species and hybrids were considered to be the different degrees of tolerance to low temperature during winter.
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