Lang-Bian white-bellied rat

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Lang-Bian white-bellied rat
Systematics
Family : Long-tailed mice (Muridae)
Subfamily : Old World Mice (Murinae)
Tribe : Rattini
Dacnomys group
Genre : White-bellied rats ( Niviventer )
Type : Lang-Bian white-bellied rat
Scientific name
Niviventer langbianis
( Robinson & Kloss , 1922)

The Lang-Bian white-bellied rat ( Niviventer langbianis ) is a rodent species from the genus of the white-bellied rats ( Niviventer ) within the old world mice (Murinae). It occurs in large parts of northern Southeast Asia.

features

The long-Bian-Weißbauch rat reaches a head-body length from 13.1 to 16.2 centimeters with a tail 15.4 to 19.9 centimeters in length with a weight of about 60 to 100 grams. The rear foot length is about 29 to 33 millimeters, the ear length 19 to 22 millimeters. The skull has a total length of 33 to 40 millimeters.

The back fur is yellowish to reddish brown with dark brown bristles and with a clear edge of sand-colored hair on the sides of the body above the boundary to the belly side. This is sharply demarcated from the sides and colored white. The tail is a solid brown color. The tops of the hands and feet are pale brown to white, sometimes with a brown spot. The species differs from the chestnut white-bellied rat ( Niviventer fulvescens ) and the Sunda white-bellied rat ( Niviventer cremoriventer ) mainly in the monochrome tail, which, however, can also be individually monochrome in the chestnut white-bellied rat.

distribution

The Lang-Bian white-bellied rat is found in large parts of northern Southeast Asia . The distribution area extends from the south of the People's Republic of China via Myanmar and northeast India to Cambodia , Laos , Vietnam and Thailand north of the Isthmus of Kra . In China, the species is only documented by a locality in central Yunnan , while other records from China probably go back to confusion with the Chinese white-bellied rat ( Niviventer confucianus ). The altitude distribution probably ranges from 200 to around 1600 meters, but can also be higher regionally.

Way of life

The Lang-Bian white-bellied rat is preferred in evergreen forests to seasonal mixed deciduous forests and is widespread there in spotty areas, while it can be found in both primary forest and less disturbed secondary forest habitats . It occurs quite frequently in some habitats and in other apparently similar habitats it is rare or absent. It lives on the ground, but can also climb into the vegetation. In the largest part of the distribution area, the species occurs sympatric with the chestnut white-bellied rat ( Niviventer fulvescens ) and the Indochinese white-bellied rat ( Niviventer tenaster ).

Systematics

The Lang-Bian 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 zoologists Herbert Christopher Robinson and Cecil Boden Kloss , who described the species in 1922 using individuals from the province of Lâm Đồng in the Lang Bian mountains from an altitude of 1,800 to 2,300 meters. It was partially regarded as a subspecies of the Sunda white-bellied rat ( Niviventer cremoriventer ), but due to various characteristics raised in the species status.

Status, threat and protection

The Lang-Bian 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 and the assumed frequent occurrence of the species. Potential threats are not known for the species, in parts of the distribution area it is affected by habitat decline.

supporting documents

  1. ↑ a b c d Darrin Lunde, Andrew T. Smith: Indochinese Arboreal 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. 269.
  2. ↑ a b c d Niviventer langbianis . 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 e f Niviventer langbianis in the IUCN Red List of Threatened Species 2016.2. Posted by: G. Musser, D. Lunde, K. Aplin, A. Frost, S. Molur, 2008. Retrieved November 16, 2016.

literature

  • Darrin Lunde, Andrew T. Smith: Indochinese Arboreal 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. 269.

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