| 词条 | Ryukyu spiny rat |
| 释义 |
| name = Ryukyu spiny rat | status = EN | status_system = IUCN3.1 | status_ref=[1] | genus = Tokudaia | species = osimensis | authority = (Y. Abe, 1934) | range_map = Tokudaia osimensis distribution.png | synonyms = }} The Ryukyu spiny rat (Tokudaia osimensis) is a species of rodent in the family Muridae.[2] Endemic to Amami Ōshima island in the Amami Islands of the Ryukyu archipelago of Japan, its natural habitat is subtropical moist broadleaf forest. The karyotype has an odd diploid number, 2n = 25.[2] Like its relative T. tokunoshimensis, it has lost its Y chromosome and SRY gene.[3] The species is threatened by habitat destruction and fragmentation, predation by feral cats and dogs and introduced mongooses, and competition with introduced black rats.[1] See also
References1. ^1 {{cite journal | authors = Ishii, N. | title = Tokudaia osimensis | journal = IUCN Red List of Threatened Species | publisher = IUCN | year = 2016 | url = http://www.iucnredlist.org/details/21973/0 | volume = 2016 | page = e.T21973A22409638 | doi = 10.2305/IUCN.UK.2016-1.RLTS.T21973A22409638.en | accessdate = 20 August 2016}} 2. ^1 {{MSW3 Muroidea | id = 13001850 | page = 1513}} 3. ^{{cite news|last=KAYOKO GEJI|title=Y chromosome losing all genes, but men won't become extinct|url=http://ajw.asahi.com/article/behind_news/social_affairs/AJ201208230009|accessdate=11 January 2014|newspaper=The Asahi Shimbun|date=August 23, 2012|deadurl=yes|archiveurl=https://web.archive.org/web/20140111165735/http://ajw.asahi.com/article/behind_news/social_affairs/AJ201208230009|archivedate=11 January 2014|df=}}
8 : Rats of Asia|Endemic fauna of Japan|Mammals of Japan|Natural history of the Ryukyu Islands|Endangered fauna of Asia|Tokudaia|Mammals described in 1934|Taxonomy articles created by Polbot |
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