Elucidation of small mammal fauna in Arimine, Toyama, central Japan

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  • 有峰湖周辺地域の小型哺乳類相
  • アリミネコ シュウヘン チイキ ノ コガタホニュウルイソウ

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In the Arimine area of Toyama City, Toyama Prefecture, I conducted automatic infrared sensor cameras survey and trappinng survey of wild life. In these surveys, I have confirmed two orders, five familys, six genuses, eight species including Japanese water shrew (Chimarrogale platycephalus), Japanese white-toothes shrew (Crocidura dsinezumi), Japanese shrew mole (Urotrichus talpoides), Japanese squirrel (Sciurus lis), Anderson’s red-backed vole (Eothenomys andersoni), Smith’s red-backed vole (Eothenomys smithii), Small Japanese field mouse (Apodemus argenteus) and Large Japanese field mouse (Apodemus speciosus). It is the first time in 40 years that the Japanese red-backed vole has been confirmed to inhabit. The Japanese water shrew were newly confirmed to inhabit Sumi-tani. In addition to the six spots in the Nishitani and Inonedaira of Lake Arimine that have been confirmed in recent years. It is possible that they inhabit widely in the mountain streams around Lake Arimine. Regarding the water shrew, it is possible that it will inhabit widely in the mountain stream around Lake Arimine by newly confirming the habitat in Sumi-tani apart from the six spots in the Nishidani area and Inonedaira area of Lake Arimine that have been confirmed in recent years.

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