Brahma white-bellied rat

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Brahma white-bellied rat
Systematics
Family : Long-tailed mice (Muridae)
Subfamily : Old World Mice (Murinae)
Tribe : Rattini
Dacnomys group
Genre : White-bellied rats ( Niviventer )
Type : Brahma white-bellied rat
Scientific name
Level brahma
( Thomas , 1914)

The Brahma white-bellied rat ( Niviventer brahma ) is a rodent species from the genus of the white-bellied rats ( Niviventer ) within the old world mice (Murinae). It occurs in northeast India , north Myanmar and the extreme southwest of China .

features

The Brahma white-bellied rat reaches a head-trunk length of 13.6 to 15.5 centimeters with a tail of 20.1 to 23.7 centimeters in length . The rear foot length is about 31 to 34 millimeters, the ear length 20 to 25 millimeters. The skull has a total length of 35.8 to 38.1 millimeters.

The back fur is long, dense and soft, it is shining orange-brown to yellow-brown with very long individual black hairs. The face has a black-brown facial markings made up of individual spots that extend from the nose to behind the ears. The also bright orange-brown sides of the body are sharply demarcated from the white side of the abdomen and in the middle of the chest there is usually a central stripe or a patch of sandy brown fur. The tail is long, about 1.5 times the length of the head and torso. It is usually a solid brown or a little paler on the underside than on the top, but never sharp two-tone. It has a small tuft of longer hair on the tip of its tail. The tops of the hands and feet are brown-gray, the fingers and toes are pale gray in color. The females have three pairs of teats , one in the armpit, one in the chest and one in the lumbar area.

distribution

The Brahma white-bellied rat is found in northeast India , northern Myanmar and the extreme southwest of China . In China, the species only lives in Yunnan west of the Saluen in the Gaoligong Mountains on the border with Myanmar. In India she lives in Arunchal Pradesh and in Myanmar in the Kachin state from Adung to Nyetmaw .

Way of life

Little information is available about the way of life of the Brahma white-bellied rat. In China and Myanmar, it lives in cool to temperate, sometimes swampy coniferous forest areas at altitudes between 2000 and 2800 meters. In India it occurs in various habitats of tropical forests, temperate forests and humid deciduous forests, although it only lives in secondary forest regions . The animals are nocturnal and live burrowing in the ground.

Systematics

The Brahma white-bellied rat is classified as an independent species within the white-bellied rats ( Niviventer ), which consists of 17 species. The first scientific description comes from the British zoologist Oldfield Thomas , who described the species in 1914 on the basis of individuals from the Anzong day in the Mishmi Mountains in northeastern Arunachal Pradesh in India. Morphologically, it is close to the small Himalayan white-bellied rat ( Niviventer eha ).

Status, threat and protection

The Brahm white-bellied rat is classified by the International Union for Conservation of Nature and Natural Resources (IUCN) as not endangered (least concern). This is justified with the large distribution area, the assumed large stocks in their distribution area and the small decline in stocks. Potential threats are not known and it is assumed that the habitats are exposed to little disturbance.

supporting documents

  1. ↑ a b c d e Darrin Lunde, Andrew T. Smith: Brahman Niviventer. 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 , p. 266.
  2. ↑ a b c d e Niviventer brahma in the IUCN Red List of Threatened Species 2016.2. Posted by: K. Aplin, S. Molur, 2008. Retrieved November 11, 2016.
  3. ↑ a b Niviventer brahma . 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 .

literature

  • Darrin Lunde, Andrew T. Smith: Brahman Niviventer. 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 , p. 266.

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