Anourosorex yamashinai
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Anourosorex yamashinai |
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| Anourosorex yamashinai | ||||||||||||
| Kuroda , 1935 |
Anourosorex yamashinai is a species of shrew from the genus of the stubby- tailed shrews ( Anourosorex ). It is endemic to the island of Taiwan .
features
With a head-trunk length of 5 to 9.8 centimeters, the species is one of the small to medium-sized shrew species. The tail reaches a length of 7 to 13 millimeters and the hind feet from 11 to 16 millimeters. As with all species in the genus, the tail is very short and thin. The species is similar to Anourosorex squamipes , but is much smaller and has a shorter tail. The back and abdomen are uniformly dark gray to brown, with the abdomen being slightly lighter. The front feet have clearly enlarged claws.
| 1 | · | 2 | · | 1 | · | 3 | = 26 |
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The skull has a maximum length of 23 to 26 millimeters. Like all species of the genus has the type in the maxilla per half an incisor (incisor), two canine teeth (canines), a Vorbackenzahn (premolar) and three molars (molar). In the lower jaw, there is only one canine in each half. The animals have a total of 26 teeth. The third molars are reduced in both the upper and lower jaw.
distribution
Anourosorex yamashinai is only found on the island of Taiwan off the Chinese coast. She is thus endemic to this island.
Way of life
The preferred habitat of Anourosorex yamashinai is at altitudes of 300 to 3000 meters. The habitat consists of mountain forests, partly subtropical mixed forests and, at higher altitudes, mountain meadows. In addition, the species was discovered in agricultural areas and bamboo plantations .
Like other species of the genus, the species is adapted to a subterranean way of life, but some of its food is found in the soil. As with other shrews, the diet consists of insects, worms and other invertebrates. Hardly any data are available on reproduction.
Systematics
Anourosorex yamashinai is classified as a separate species within the genus of the stubby-tailed shrews ( Anourosorex ), which consists of four species. The first scientific description comes from Kuroda in 1935. Originally only the species Anourosorex squamipes was recognized, today, in addition to Anourosorex yamashinai , Anourosorex assamensis and Anourosorex schmidi are also valid species.
No subspecies are distinguished.
Threat and protection
The species is classified by the International Union for Conservation of Nature and Natural Resources (IUCN) as not endangered ("least concern") due to the relatively large distribution area in Taiwan and the adaptation to different habitats and the assumed population size. Threats to the species are unknown and a significant decline in populations is not assumed.
literature
- Robert S. Hoffmann, Darrin Lunde: Taiwanese Mole 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 , pp. 304-305.
Web links
- Anourosorex yamashinai inthe IUCN 2012 Red List of Endangered Species . Posted by: AT Smith, C. Johnston, 2008. Retrieved June 28, 2013.
supporting documents
- ↑ a b c d e Robert S. Hoffmann, Darrin Lunde: Taiwanese Mole 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 , pp. 304-305.
- ↑ a b c d Anourosorex yamashinai in the IUCN Red List of Endangered Species 2012.2. Posted by: AT Smith, C. Johnston, 2008. Retrieved June 28, 2013.
- ↑ a b c Anourosorex yamashinai ( Memento of the original from November 10, 2013 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 .
