2017 Fiscal Year Final Research Report
Biological interaction networks across Japanese black bears as a canopy gap creator
| Project/Area Number |
26450203
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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 | Nagano University |
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Principal Investigator |
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| Research Collaborator |
Takahashi Kaori クマ棚ネットワーク
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Keywords | ツキノワグマ / クマ棚 / クマ剥ぎ / 林冠ギャップ / 生物間相互作用 / 森林生態学 |
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| Outline of Final Research Achievements |
We grasped characteristics of the size and distribution of canopy gaps created by Japanese black bears in both a deciduous broad-leaved forest and a larch plantation forest, and also characteristics of light conditions and vegetation structures in each forest layers beneath the created canopy gaps. The size of canopy gaps created by forming of bear shelves and bear bark stripping was about two times and about 1.3 times as large as canopy gaps created by natural processes, respectively. The canopy gap created by forming of bear shelves improved light conditions, and also improved both the number of woody plants for all species and that of woody plant species in canopy layers. The canopy gaps created by bear bark stripping improved light conditions, and also improved the number of woody plant species in forest floor layers. According to the results, we suggested some new ideas on forest managements utilizing the function of wild animals.
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| Free Research Field |
森林科学
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