^○Yano Rintaro, Hanada Masaaki, Nishida Takehiro, Fukuma Naoki (Obihiro Univ. of Agriculture and Veterinary Medicine)

^○Matsuya Yosuke¹, Tanabe Tomoki², Minohara Taisuke³, Kurosu Kazuhiro³, Kawai Masahito⁴ (1.Hokuchiku Co., Ltd., 2.Graduate School of Environmental Science, Hokkaido Univ., 3.Nippon Paper Industries Co., Ltd., 4.Field Science Center for Northern Biosphere, Hokkaido Univ.)

^○Tanabe Tomoki¹, Kawai Masahito², Matsui Akira³, Mitani Tomohiro², Ueda Koichiro⁴ (1.Graduate School of Environmental Science, Hokkaido Univ., 2.Field Science Center for Northern Biosphere, Hokkaido Univ., 3.Hidaka Training and Research Center, Japan Racing Association, 4.Graduate School of Agriculture, Hokkaido Univ.)