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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Japanese weasel ： ウィキペディア英語版 Japanese weasel The Japanese weasel (''Mustela itatsi'') is a carnivorous mammal belonging to the genus ''Mustela'' in the family Mustelidae. It is native to Japan where it occurs on the islands of Honshū, Kyūshū and Shikoku.〔Masuda, Ryuichi & Michihiro C. Yoshida (1994) "(Nucleotide sequence variation in Cytochrome b genes in three species of weasels ''Mustela itatsi'', ''Mustela sibirica'' and ''Mustela nivalis'', detected by improved PCR product-direct sequencing technique )", ''Journal of the Mammalogical Society of Japan'', 19 (1): 33-43.〕 It has been introduced to Hokkaidō and the Ryukyu Islands to control rodents and has also been introduced to Sakhalin island in Russia.〔Kodansha (1993) ''Japan: an illustrated encyclopedia'', Kodansha, Tokyo.〕〔Wilson, Don E. & DeeAnn M. Reeder (eds.) (2005) ''(Mustela itatsi )'', ''(Mammal Species of the World )'', 3rd edition, Johns Hopkins University Press.〕 It is often classified as a subspecies of the Siberian weasel (''M. sibirica''). The two species are very similar in appearance but differ in the ratio of tail length to head and body length.〔 There are also genetic differences which suggest that the two diverged around 1.6-1.7 million years ago.〔 Their ranges now overlap in western Japan where the Siberian weasel has been introduced.〔 Adult males of the Japanese weasel can reach in body length with a tail length of up to .〔 Females are smaller. The fur is orange-brown with darker markings on the head. The species typically occurs in mountainous or forested areas near water.〔 Its diet includes mice, frogs, reptiles, insects and crayfish.〔〔Sekiguchi Keishi, Ogura Go, Sasaki Takeshi, Nagayama Yasuhiko, Tsuha Kojun, Kawashima Yoshitsugu (2002) "(Food habits of introduced Japanese weasels (''Mustela itatsi'') and impacts on native species on Zamami Island )", ''Mammalian Science'', 85:153-160. ()〕 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Japanese weasel」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.