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*Kiyoshi Fujimoto
Faculty of Policy Studies, Nanzan university
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Kenji Ono
Tohoku Research Center, Forestry and Forest Pruducts Research Institute
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Shin Watanabe
Tropical Biosphere Research Center, University of the Ryukyus
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Shingo Taniguchi
Faculty of Agriculture, University of the Ryukyus
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Saimon Lihpai
Department of Land and Natural Resources, Pohnpei State Government