1Global Education Institute, University of the Ryukyus, Okinawa, 903‑0213 Japan
2Department of Environmental Science and Conservation Biology, United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, 890‑8580 Japan
3Graduate School of Education, University of the Ryukyus, Nishihara, Okinawa 903‑0213 Japan
4Entomological Laboratory, Faculty of Agriculture, University of the Ryukyus, Okinawa, 903‑0213 Japan
5Field Science Education and Research Center, Hokkaido Forest Research Station, Kyoto University, 553 Tawa, Shibecha‑cho, Kawakami‑gun, Hokkaido 088‑2339 Japan
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