Shanxi bank vole

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Shanxi bank vole
Systematics
Superfamily : Mice-like (Muroidea)
Family : Burrowers (Cricetidae)
Subfamily : Voles (arvicolinae)
Tribe : Arvicolini
Genre : Bank voles ( Myodes )
Type : Shanxi bank vole
Scientific name
Myodes shanseius
( Thomas , 1908)

The Shanxi Rötelmaus ( Myodes shanseius ) is a rodent species of the genus Rötelmäuse ( Myodes ) within the voles (Arvicolinae). It occurs in parts of the People's Republic of China .

features

The Shanxi bank vole reaches a head-trunk length of 10.5 to 10.6 centimeters with a tail of 2.5 to 3.0 centimeters in length . The rear foot length is 20 to 21 millimeters, the ear length 13 to 15 millimeters. The back fur is dull red-brown, the sides of the body are gray-ocher-colored with hair that is gray at the base and ocher-colored at the tips. The belly side is gray sand colored, the hair also has a gray base and the tips are sand colored. In its appearance it corresponds to the gray bank vole ( Myodes rufocanus ), but the red-brown back area is less red and the sides of the body are more ocher gray instead of the pronounced gray of the gray bank vole. The tail is two-colored, the top is dark brown and the underside is white. The top of the hands and feet is brownish white. The females have four pairs of teats , one each in the armpit and chest area and two in the abdomen area.

The molar M3 also corresponds to that of the gray bank vole and it usually has only two folds on the tongue side. In this species, even the adult animals have rootless and thus permanently regrowing molars.

distribution

The Shanxi bank vole occurs in parts of the People's Republic of China . The distribution area extends from the north of Sichuan and the south of Gansu over the north of Shanxi and Hebei to Beijing and Nei Mongol . The IUCN also lists Henan and Hubei as parts of the distribution area.

Way of life

The Shanxi bank vole lives primarily in forests and wood stocks. Like other field mice they feed on herbivores from plants, especially by green vegetation, young shoots and seeds. It is primarily nocturnal, but can also develop activity during the day.

Systematics

The Shanxi bank vole is classified as an independent species within the bank vole ( Myodes ), which consists of 13 species. The first scientific description comes from the British zoologist Oldfield Thomas , who described the species in 1908 using individuals from the Chao Cheng Shan on Nanyanshan or on Guandi Shan in Shanxi. In some cases, the species was assigned to the genus Père David voles ( Eothenomys ) as Eothenomys shanseius due to the rootless molars and according to some systematics it is assigned to the gray bank vole ( Myodes rufocanus ), but is currently considered to be independent. It is also closely related to the Korean bank vole ( Myodes regulus ).

Status, threat and protection

The Shanxi bank vole is classified by the International Union for Conservation of Nature and Natural Resources (IUCN) as not endangered (least concern). This is justified with the comparatively large distribution area and the assumed large populations of the species. Potential endangerment risks for the species are not known.

supporting documents

  1. ↑ a b c d Darrin Lunde, Andrew T. Smith: Shanxi Red-Backed Vole. In: Andrew T. Smith , Yan Xie: A Guide to the Mammals of China. Princeton University Press, Princeton NJ 2008, ISBN 978-0-691-09984-2 , pp. 235-236.
  2. ↑ a b c Myodes shanseius . In: Don E. Wilson , DeeAnn M. Reeder (Eds.): Mammal Species of the World. A taxonomic and geographic Reference. 2 volumes. 3. Edition. Johns Hopkins University Press, Baltimore MD 2005, ISBN 0-8018-8221-4 .
  3. ↑ a b c d Myodes shanseius in the IUCN Red List of Threatened Species 2016.2. Listed by: AT Smith, CH Johnston, 2008. Retrieved November 4, 2016.

literature

  • Darrin Lunde, Andrew T. Smith: Shanxi Red-Backed Vole. In: Andrew T. Smith , Yan Xie: A Guide to the Mammals of China. Princeton University Press, Princeton NJ 2008, ISBN 978-0-691-09984-2 , pp. 235-236.

Web links