Little striped shrew
| Little striped shrew | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Sorex bedfordiae | ||||||||||||
| Thomas , 1911 |
The little striped shrew ( Sorex bedfordiae ) is a species of shrew from the genus of the red- toothed shrew ( Sorex ). It occurs in South Asia in China , Nepal and Myanmar .
features
With a head-torso length of 5 to 7.2 centimeters, the little striped shrew is one of the medium-sized shrew species. The tail reaches a length of 48 to 66 millimeters and is thus shorter than the rest of the body, the rear foot is 11 to 15 millimeters long. The color of the back and the abdomen is almost monochrome dark brown, the side of the abdomen is slightly lighter than the back. For most individuals, a black stripe runs from the neck down the middle of the back.
| 1 | · | 5 | · | 1 | · | 3 | = 32 |
| 1 | · | 1 | · | 1 | · | 3 |
The skull has a total length of 17 to 19 millimeters and a length of the upper row of teeth from 7.1 to 8.1 millimeters. As most species of the genus has the type in the maxilla per half an incisor (incisor) and then five unicuspid teeth, a Vorbackenzahn (premolar) and three molars (molar). In the lower jaw, however, it has a single canine behind the incisor. Overall, the animals have a set of 32 teeth. The tooth roots are colored red as in most red-toothed shrews. The first three single-pointed teeth of the upper jaw are about the same size, the fourth and fifth gradually decrease in size or are the same size. In its appearance it corresponds very closely to S. cylindricauda , but it is somewhat smaller and the tail is longer in relation to the body, and the fifth single-pointed tooth is significantly smaller.
distribution
The small striped shrew occurs in South Asia in China , in Nepal and in the north of Myanmar . In Nepal the species is known from Khumjung and Ringmo , in China it lives in the south of the Gansu province and from western Shensi to Yunnan . The altitude distribution is around 2135 to 4270 meters.
Way of life
As is the case with many species of the genus, only little data is available on the way of life of this species. The little striped shrew from Nepal is mainly known from mountain forests and meadows at altitudes above 4000 meters, in China it lives at lower altitudes, especially in the rhododendron-coniferous forest zone. It lives on the ground in the leaf litter and like all shrews it feeds on invertebrates, especially insects. There are no observations on reproduction.
Systematics
The little striped shrew is classified as an independent species within the genus of the red- toothed shrew ( Sorex ), which consists of around 80 species. The first scientific description comes from Oldfield Thomas from 1911, who described an individual from Emei Shan in Sichuan Province . The species was partially assigned to S. cylindricauda as a subspecies, but is now recognized as a species. Within the genus, the species of the subgenus Sorex is classified.
Apart from the nominate form Sorex bedfordiae bedfordiae, no further subspecies are distinguished within the species .
Threat and protection
The International Union for Conservation of Nature and Natural Resources (IUCN) classifies the small striped shrew as not endangered (least concern) due to its relatively large distribution area and the assumed large populations. There are no known threats to the company's existence.
literature
- Robert S. Hoffmann, Darrin Lunde: Lesser striped shrew. 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. 314.
Web links
- Sorex bedfordiae onthe IUCN 2013 Red List of Threatened Species . Posted by: S. Molur, 2008. Retrieved January 1, 2014.
supporting documents
- ↑ a b c d e f Robert S. Hoffmann, Darrin Lunde: Lesser striped shrew. 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. 314.
- ↑ a b c Sorex bedfordiae in the IUCN Red List of Threatened Species 2013.2. Posted by: S. Molur, 2008. Retrieved January 1, 2014.
- ↑ a b c d Sorex bedfordiae ( Memento of the original from January 2, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. . 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 .
