| Project/Area Number |
23780155
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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 |
Forest science
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| Research Institution | Niigata University |
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Principal Investigator |
ABE HARUE 新潟大学, 自然科学系, 助教 (60462272)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKAHASHI Toshimori 宇都宮大学, 農学部, 准教授 (20396815)
HASEGAWA Masami 東邦大学, 理学部, 教授 (40250162)
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| Research Collaborator |
YOSHIKAWA Tetsuro 森林総合研究所, 森林植生研究室, 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 |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 三宅島 / 種子散布 / 鳥類 / 噴火 / 遺伝的多様性 / 外来種 / 遺伝マーカー |
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| Research Abstract |
Physiological tolerances in species in addition to ecological tolerance for disturbance in interspecific interactions act as key elements for restoration of a whole island ecosystem. In an effort to study these community recovery processes, we aim to identify the key elements on a seed dispersal system and estimate these ecological tolerance on a volcanic island, Miyake-jima, which experienced an eruption in the summer of 2000. In the results, seeds of Eutya japonica were found most frequently in bird feces and Japanese white-eye was the dominant visitor, comprising 75% of all visits to fruiting Eurya trees. The genetic diversity of Eurya seeds in bird feces were not correlated with index of volcanic damages. The results indicated that the seed-dispersal system of E. japonica and White-eye was maintained under volcanic disturbance and act as important elements for forest restoration.
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