University of the Ryukyus · Faculty of Science

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• Advances in research on the evolution, ecology, and conservation of Ryukyu endemic mammals2025 · Kobayashi, S; Kubo, MO; Hayashi, S
• Volatile compounds of mammal-pollinated Mucuna macrocarpa (Fabaceae) based on distribution area in Japan, Taiwan, and Thailand2025 · Abstract In this study, we aimed to identify the variation in the volatile compounds of Mucuna macrocarpa (Fabaceae), a species pollinated by various mammals in different regions. Volatile compounds of M. macrocarpa were collected from four regions using the dynamic head‐space method. Collected compounds were analyzed using gas chromatography–mass spectrometry. Combined, 112 volatile compounds were identified, with the number per flower ranging from 14 to 63 compounds in each flower. Of these, 1,3‐pentadiene was the most dominant compound in all flowers across all regions, accounting for 89.2%–98.5% of the total peak area. Several flowers did not contain the sulfur compounds reported to attract mammals, particularly nectar‐feeding bats. The results indicate that this plant attracts a diverse range of mammals without changing its primary compounds. Despite the absence of certain known mammal‐attracting volatile compounds, 1,3‐pentadiene may still effectively attract a range of arboreal mammalian pollinators.
• An attempt at age estimation of the Ryukyu long-furred rat (Diplothrix legata) using tooth wear analysis: first report on the difference in molar wear patterns between rats in Okinawajima and Amami-Oshima Islands2025 · Nakanishi, N; Tsubasaka, Y; Sawanaka, I; Kondo, K; Kobayashi, S; Izawa, M; Hayashi, S
• ケナガネズミによるアダン摂食とロードキル発生および餌としてのオカヤドカリの新知見2025 · 丸田裕介, 辻 和希, 佐藤行人, 小林 峻, 小高信彦, 鶴井香織

• 琉球諸島の哺乳類をモデルとした陸生哺乳類の島嶼適応に関する研究2023 · 基盤研究(C)
• マメ科トビカズラ属をモデルとした広域分布種と局所分布種の送粉様式の差異の解明2022 · 基盤研究(C)

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