About the Authors
- Takashi Ikeda
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* E-mail: wild_wolf_traveler@yahoo.co.jp
Affiliation Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Hokkaido, Japan
- Kenta Uchida
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Affiliation Graduate School of Environmental Earth Science, Hokkaido University, Sapporo, Hokkaido, Japan
- Yukiko Matsuura
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Affiliation Hokkaido Research Center, Forestry and Forest Products Research Institute, Sapporo, Hokkaido, Japan
- Hiroshi Takahashi
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Affiliation Kansai Research Center, Forestry and Forest Products Research Institute, Kyoto, Kyoto, Japan
- Tsuyoshi Yoshida
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Affiliation Wildlife Management Laboratory, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
- Koichi Kaji
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Affiliation Laboratory of Wildlife Management, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
- Itsuro Koizumi
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Affiliations Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Hokkaido, Japan, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo, Hokkaido, Japan
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceptualization: TI KU IK. Data curation: TI. Formal analysis: TI IK. Funding acquisition: TI TY. Investigation: TI YM HT. Methodology: TI KU IK. Project administration: TI TY KK IK. Resources: TI. Software: TI. Supervision: TI KU IK. Validation: TI KU YM HT TY KK IK. Visualization: TI. Writing – original draft: TI KU YM HT TY KK IK. Writing – review & editing: TI IK.