Pine wilt disease leads ecological trap for critically endangered Okinawa woodpecker?
| Project/Area Number |
19780128
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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 |
林学・森林工学
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| Research Institution | Forestry and Forest Products Research Institute |
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Principal Investigator |
KOTAKA Nobuhiro Forestry and Forest Products Research Institute, 九州支所, 主任研究員 (90414482)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥3,480,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥480,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥1,400,000 (Direct Cost: ¥1,400,000)
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| Keywords | ノグチゲラ / やんばる / エコロジカルトラップ / リュウキュウマツ / マツ材線虫病 / 営巣木選択 / 繁殖成功 / 枯死木 / 営草木選択 |
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| Research Abstract |
Okinawa woodpecker (OW), ranked as a critically endangered species, is endemic to the northern part of Okinawa Island called Yambaru Forest. OWs have been mainly nesting on Castanopsis sieboldii, dominating tree species in ever green Yambaru Forest. Recently I found some OWs were nesting on dead pine trees (Pinus luchuensis), which were infected with pine wilt disease in artificially created pine forests by plantation. Fledging success of OWs nesting on dead pine trees were significantly lower than those nesting on C. sieboldii, although the dead pine trees were strongly selected by OWs for their nesting. These results are consistent with the hypothesis that the pine wilt disease infected dead pine trees can act as an "ecological trap" by attracting OW to unfavorable poor-quality nesting habitat.
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Report
(4 results)
Research Products
(5 results)
