Long-tailed mouse-eared mouse

Long-tailed mouse-eared mouse
Systematics
Order :	Bats (chiroptera)
Superfamily :	Smooth-nosed (Vespertilionoidea)
Family :	Smooth-nosed (Vespertilionidae)
Subfamily :	Myotinae
Genre :	Mouse ears ( myotis )
Type :	Long-tailed mouse-eared mouse
Scientific name
	Myotis frater
	Allen , 1923

The long-tailed mouse-eared mouse ( Myotis frater ), also known as the Fujian water bat , is a species of the mouse-eared mouse ( Myotis ) within the bats (Chiroptera). It occurs from Russia and the People's Republic of China to the Korean Peninsula and Japan .

features

The long-tailed mouse-eared bat is a comparatively small species of bat. It reaches a head-torso length of 43 to 57 millimeters and a tail length of 38 to 47 millimeters. The hind feet are 7 to 12 millimeters long. The ears measure 11 to 14 millimeters, they are shorter than the length of the head and when placed forward do not reach the tip of the snout. The forearm length is 36 to 42 millimeters, the calcar has a small keel and the flight skin attaches to the heels. The tibia is about 20 millimeters long, the foot length is less than half the length of the lower leg. The length of the tail corresponds roughly to the length of the head and torso or is slightly shorter. The fur is dark brown on both the back and the belly.

The skull reaches a total length of about 13.5 millimeters. The snout is slightly bent downwards, the interocular region is depressed and the cranium is not noticeably protruding. The second upper premolar (P3) is small and offset inward from the row of teeth, which means that the two adjacent teeth touch. The lower premolar p3 is also reduced in size and slightly offset towards the inside of the row of teeth.

distribution

The long-tailed mouse-eared mouse comes from southern Siberia (Russia) and the northeastern People's Republic of China to the Korean Peninsula and Japan . In the northeast the subspecies M. f. longicaudatus has been found in the provinces of Nei Mongol and Heilongjiang , in Japan it lives on the islands of Honshu and Hokkaido . The nominate form M. f. frater occurs in the Chinese provinces of Fujian , Jiangxi , Sichuan and Anhui , with the distribution areas being quite fragmented.

Way of life

Very little information is available on the bat species' lifestyle and ecological demands. The types come from hollows in bamboo trees at heights of 760 meters. In Japan they rested in tree hollows during the day, breeding colonies of more than 100 animals were found in houses and a smaller colony was discovered in a cave. In Russia, the animals were found in caves and crevices in winter quarters.

Systematics

The long-tailed mouse-eared mouse is assigned to the mouse-ears (genus Myotis ) as an independent species . The first scientific description comes from the German naturalist Glover Morrill Allen from 1923, who described it using individuals from Fujian in southeastern China. Due to the fragmented distribution areas and the separation of the subspecies, it is possible that several species that are to be considered separately are combined under the species name.

Within the species, four subspecies are distinguished with the nominate form :

Myotis frater frater , nominate form
Myotis frater eniseensis
Myotis frater kaguyae
Myotis frater longicaudatus

Hazard and protection

The species is not classified in the endangerment system by the International Union for Conservation of Nature and Natural Resources (IUCN) due to a lack of data and unanswered questions regarding the taxonomy and instead classified as "data deficient". In Japan the species is considered endangered and in Russia it is considered a rare species. Habitat changes and losses are assumed to be potential threats to the population.

supporting documents

↑ ^a ^b ^c ^d ^e ^f ^g ^h Don E. Wilson Fraternal Myotis. In: Andrew T. Smith , Yan Xie: A Guide to the Mammals of China. Princeton University Press, 2008; P. 377, ISBN 978-0-691-09984-2 .
↑ ^a ^b ^c ^d ^e ^f Myotis frater in the Red List of Threatened Species of the IUCN 2017-3. Posted by: K. Tsytsulina, 2008. Retrieved January 27, 2018.
↑ ^a ^b Don E. Wilson & DeeAnn M. Reeder (eds.): Myotis frater in Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed).

literature

Don E. Wilson Fraternal Myotis. In: Andrew T. Smith , Yan Xie: A Guide to the Mammals of China. Princeton University Press, 2008; P. 377, ISBN 978-0-691-09984-2 .

Web links

Myotis frater inthe IUCN 2017-3 Red List of Threatened Species . Posted by: K. Tsytsulina, 2008. Retrieved January 27, 2018.

[Smith_&_Yan_Xie_2009-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h Don E. Wilson Fraternal Myotis. In: Andrew T. Smith , Yan Xie: A Guide to the Mammals of China. Princeton University Press, 2008; P. 377, ISBN 978-0-691-09984-2 .

[IUCN-2] ↑ ^a ^b ^c ^d ^e ^f Myotis frater in the Red List of Threatened Species of the IUCN 2017-3. Posted by: K. Tsytsulina, 2008. Retrieved January 27, 2018.

[Wilson_&_Reeder_2005-3] Don E. Wilson & DeeAnn M. Reeder (eds.): Myotis frater in Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed).