Long-tailed birch mouse

The long-tailed birch mouse (Sicista caudata) is a species of birch 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]

Chinese birch mouse
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Sminthidae
Genus: Sicista
Species:
S. caudata
Binomial name
Sicista caudata
Thomas, 1907

Description

The long-tailed birch mouse grows to a length of about 90 mm (3.5 in) 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.[3]

Distribution and habitat

The 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][3]

Behaviour

The 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]

Status

The 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]

References
  1. Clayton, E. (2016). "Sicista caudata". IUCN Red List of Threatened Species. 2016: e.T20187A22204603. doi:10.2305/IUCN.UK.2016-1.RLTS.T20187A22204603.en. Retrieved 12 November 2021.
  2. Holden, M.E.; Musser, G.G. (2005). "Family Dipodidae". In Wilson, D.E.; Reeder, D.M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 871–893. ISBN 978-0-8018-8221-0. OCLC 62265494.
  3. Andrew T. Smith; Yan Xie (2008). A guide to the mammals of China. Princeton University Press. pp. 207–. ISBN 978-0-691-09984-2.
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