Mechanisms of biodiversity declines in satokusachi:effects of land consolidation and abandonment
| Project/Area Number |
23570024
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Ecology/Environment
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| Research Institution | Kobe University |
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Principal Investigator |
USHIMARU Atushi 神戸大学, 人間発達環境学研究科, 教授 (70399327)
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 里草地 / 植物 / チョウ / バッタ / 中規模撹乱仮説 / 土地利用変化 / 耕作放棄 / 圃場整備 / 植物多様性 / 植食性昆虫多様性 / 半自然草地 / 維管束植物 / 植食性昆虫 / 土地利用 / 生物多様性 / ほ場整備 / 食植生昆虫 |
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| Outline of Final Research Achievements |
Declines in plants and herbivorous insects due to land-use abandonment and intensification, have been studied in agricultural areas worldwide. We compared plant richness and butterfly and orthopteran richness and diversity among three land-use types in semi-natural grasslands: abandoned, traditional and intensified terraces. Plant and herbivore richness and diversity were significantly lower in abandoned and intensified grasslands than in traditional grasslands. Changes in the mowing frequency explained plant richness decline as a consequence of land abandonment and intensification. The results suggest that a mowing frequency of 2-3 times per year enhance herbivore richness directly, as well as indirectly by enhancing plant diversity.
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Report
(5 results)
Research Products
(20 results)
