Kandai Doi,^1,* Mikuni Tokuyoshi,^2,* Kaori Morishima,³ Kazunobu Kogi,⁴ Yuya Watari<sup>3,**

1</sup>JSPS research fellow, Forestry and Forest Products Research Institute, Matsunosato, Tsukuba, Ibaraki 305-8687, Japan
²Graduate School of Agriculture and Life Science, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
³Forestry and Forest Products Research Institute, Matsunosato, Tsukuba, Ibaraki 305-8687, Japan
⁴Mikura Island Tourist Information Center, Mikura-shima village, Tokyo 100-1301, Japan

^*Equal contribution as co-first author.
^**To whom correspondence should be addressed. E-mail: ywatari@affrc.go.jp