| Project/Area Number |
25870208
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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 |
Aquatic bioproduction science
Forest science
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
SAKAI Masaru 東京農工大学, 農学部, 助教 (10636343)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | シカ食害 / 河畔林 / 渓流 / 底生動物 / 魚類 / 餌資源 / ニホンジカ / 過採食 / 河畔植生 / 陸生昆虫 / 土砂流出 / 河川生態系 / 水生昆虫 |
|---|
| Outline of Final Research Achievements |
This study evaluated impacts of deer overbrowsing on stream ecosystems through riparian forest degradations. Samples of periphyton, benthic invertebrates and fishes were collected for comparing stream food web structures between deer-excluded and control sites. Moreover, quality and quantity of food resources for fishes were evaluated based on falling and drifting materials and gut contents of fishes. These investigations suggest that impacts of deer overbrowsing can further propagate to fish communities through alterations of food resource flows within stream and riparian forest ecosystems.
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