| 词条 | Long-tailed birch mouse |
| 释义 |
| name = Chinese birch mouse | status = DD | status_system = IUCN3.1 | status_ref = [1] | genus = Sicista | species = caudata | authority = Thomas, 1907 }} The long-tailed birch mouse (Sicista caudata) is a species of jumping mouse found in Northeast Asia.[2] It has been reported from the Ussuri region of Manchuria, Sakhalin Island and Primorsky Krai in Russia, and northern North Korea. It is listed as data deficient by the IUCN.[1] DescriptionThe long-tailed birch mouse grows to a length of about {{convert|90|mm|1|abbr=on}} with a tail of up to twice its body length. The dorsal fur is pale greyish-brown tinged with yellow and along the spine are longer hairs tipped with black forming a vertebral stripe. The flanks are paler yellowish-brown and the underparts greyish creamy-white. The tail is a uniform light yellowish-grey. The zygomatic arch is widest in the middle, the premolars are large and the back of the skull is rounded.[4] Distribution and habitatThe long-tailed birch mouse is native to northeastern China and the Ussuri region of Russia as well as being found on Sakhalin Island. It is found in mountain taiga, in coniferous forest, in mixed forests and on steppe grassland.[1][4] BehaviourThe ecology of the long-tailed birch mouse is little known. It hibernates for at least six months during the winter. It builds its nest, made of a woven ball of grass, in crevices or in bushes. Litters usually consist of four to six young. This birch mouse eats green plants, berries but mostly feeds on seeds, being chiefly active at night and spending the daytime in a shallow burrow.[1][3] StatusThe long-tailed birch mouse has a wide range, at least some of which is in protected areas. It is a poorly known species and in general appears to be uncommon, but it may be more plentiful than is currently realised. The population trend is unknown, so the International Union for Conservation of Nature has listed it as "data deficient".[1] See also
References1. ^1 2 3 4 {{IUCN2008|assessor=Tsytsulina, K. |year=2008|id=20187|title=Sicista caudata|downloaded=17 March 2009}} Database entry includes a brief justification of why this species is of data deficient 2. ^{{MSW3 Dipodidae|id=12900067}} 3. ^1 2 {{cite book|author1=Andrew T. Smith|author2=Yan Xie|title=A guide to the mammals of China|url=https://books.google.com/books?id=ka-9f68nPT4C&pg=PA207|year=2008|publisher=Princeton University Press|isbn=978-0-691-09984-2|pages=207–}} External links
4 : Sicista|Mammals of Korea|Mammals of Pakistan|Mammals described in 1907 |
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