Does management of upper vegetation improve tolerance to herbivory? A test based on resource allocation theory
| Project/Area Number |
15K07471
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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 |
Forest science
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Suzuki Maki 東京大学, 大学院新領域創成科学研究科, 准教授 (40396817)
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| Co-Investigator(Kenkyū-buntansha) |
松木 佐和子 岩手大学, 農学部, 講師 (40443981)
楠本 大 東京大学, 大学院農学生命科学研究科(農学部), 講師 (80540608)
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| Research Collaborator |
TAKAGI Toyohiro
HISAMOTO Yoko
MITSUGI Mitsukazu
KARUKOME Tsutomu
HARADA Kensuke
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | ニホンジカ / 二次林 / 上層木管理 / 耐陰性 / 耐食害性 / 防御物質 / 伐採 / 資源配分 / 質的防御物質 / 恒常的防御 / イズセンリョウ / サポニン / 炭素節約的防御 / シカ不嗜好性植物 / 防御と成長のトレードオフ / 森林生態系の弾力性 |
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| Outline of Final Research Achievements |
We examined effects of clearcutting and deer-exclosure installation on the forest floor vegetation of abandoned woodlands. Clearcutting improved light environment of forest floor helped germination of herbivory-tolerant or herbivory-resistant plants. Ground cover of understory vegetation increased to >45% by clearcutting even without installation of deer-exclosure; no significant recovery was found under closed canopy. Clearcutting increased inter- and intra-species variation in traits related to growth, photosynthesis and herbivory defence among forest-floor plants, increasing diversity of functional traits. Improvement of light environment of abandoned woodland would promote regeneration of many herbivory-tolerant species and also benefit growth and defence behaviour. These effects are expected to increase herbivory-toleance of forest vegetation.
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Report
(4 results)
Research Products
(7 results)
