Sichuan Bearded Bat

Sichuan Bearded Bat
Systematics
Order :	Bats (chiroptera)
Superfamily :	Smooth-nosed (Vespertilionoidea)
Family :	Smooth-nosed (Vespertilionidae)
Subfamily :	Myotinae
Genre :	Mouse ears ( myotis )
Type :	Sichuan Bearded Bat
Scientific name
	Myotis altarium
	Thomas , 1911

The Sichuan-Bart bat ( Myotis altarium ) is a kind of mouse ears ( Myotis ) within the bats (chiroptera). It is spread over parts of southeast China to Thailand .

features

The Sichuan bearded bat reaches a head-trunk length of 55 to 60 millimeters and a tail length of 48 to 50 millimeters. The forearm is 42 to 44 millimeters in length, the hind feet are 11 to 12 millimeters and the ears 22 to 24 millimeters. Accordingly, it is a medium-sized bat species. The back fur is black-brown, the belly side is a little lighter, but has no white hair tips. The feet are very large and have a pronounced and narrowly keeled calcar with a length that exceeds half the length of the tibia . The ears are narrow and long, they point forward and go beyond the tip of the snout. The skin attaches to the base of the toes.

The skull has a length of 15 to 16 millimeters. The snout region (rostrum) is short and wide and the brain skull (cranium) is clearly protruding. The teeth have some species-specific features, the premolars of the upper and lower jaw are in the row of teeth.

distribution

Distribution areas of the Sichuan whiskered bat

The Sichuan whiskered bat occurs in the southeast of the People's Republic of China and in the north of Thailand . In China, it is common in parts of Sichuan , Yunnan , Guangxi , Jiangxi , Fujian , Anhui, and Guizhou .

Way of life

Very little information is available on the bat species' lifestyle and ecological demands. All previously known individuals have been trapped in caves where they have their resting places.

Systematics

The Sichuan bearded bat is assigned to the mouse-eared bat (genus Myotis ) as an independent species . The first scientific description comes from the British zoologist Oldfield Thomas from 1911, who described it using specimens from the Emei Shan in Sichuan. No subspecies are distinguished within the species.

Hazard and protection

The species is classified by the International Union for Conservation of Nature and Natural Resources (IUCN) as not endangered (“least concern”), although hardly any information is available about its distribution, ecological demands and population figures. This assignment is justified by the comparatively large distribution area and the assumption that the stocks are relatively stable. There are no known threats to the species population.

supporting documents

↑ ^a ^b ^c ^d ^e ^f Don E. Wilson Szechwan Myotis. In: Andrew T. Smith , Yan Xie: A Guide to the Mammals of China. Princeton University Press, 2008; P. 373, ISBN 978-0-691-09984-2 .

↑ ^a ^b ^c Myotis altarium in the IUCN Red List of Threatened Species 2016.2. Posted by: G. Csorba, C. Francis, 2008. Retrieved November 21, 2016.
^ ^A ^b Don E. Wilson & DeeAnn M. Reeder (eds.): Myotis altarium in Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed), 2005

literature

Don E. Wilson Szechwan Myotis. In: Andrew T. Smith , Yan Xie: A Guide to the Mammals of China. Princeton University Press, 2008; P. 373, ISBN 978-0-691-09984-2 .

Web links

Commons : Sichuan Bearded Bat ( Myotis altarium ) - Collection of images, videos and audio files

Myotis altarium inthe IUCN Red List of Threatened Species 2016.2. Posted by: G. Csorba, C. Francis, 2008. Retrieved November 21, 2016.

[Smith_&_Yan_Xie_2009-1] ↑ ^a ^b ^c ^d ^e ^f Don E. Wilson Szechwan Myotis. In: Andrew T. Smith , Yan Xie: A Guide to the Mammals of China. Princeton University Press, 2008; P. 373, ISBN 978-0-691-09984-2 .