Baverstock forest bat
| Baverstock forest bat | ||||||||||||
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| Systematics | ||||||||||||
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| Vespadelus baverstocki | ||||||||||||
| ( Kitchener , Jones & Caputi , 1987) |
The Baverstock forest bat ( Vespadelus baverstocki , syn .: Eptesicus baverstocki ) is a bat species from the smooth-nosed family (Vespertilionidae). It occurs in Australia . The type epithet honors the Australian evolutionary biologist and zoologist Peter R. Baverstock .
features
The Baverstock forest bat reaches a head-trunk length of 36 to 43 mm, a tail length of 26 to 34 mm, a forearm length of 26 to 32 mm and a weight of 3 to 6 g. The back fur is light sandy brown, the peritoneum is lighter, with the shaft hair being two-colored. The hair base is dark brown and the ends of the hair are cream colored or very light brown. The face is pink. The tragus is sometimes white and noticeably lighter than the rest of the ear. The penis of the Baverstock forest bat is comparatively hanging and not bent at an angle, and the glans is funnel-shaped in profile and not flattened.
distribution
The range of the Baverstock wood bat extends from the south of the Northern Territory , over South Australia , Queensland ( Great Dividing Range , Desert Uplands , Mount Isa , Boodjamulla National Park ) and New South Wales , where they are most common in the extreme southwest, north of the Murray River to Menindee and at least as far east to the Balranald - Ivanhoe Road. There is also evidence that it occurs in the Mallee- dominated Nombinnie Nature Reserve in the central region of New South Wales. Isolated occurrences are known from the extreme northwest of Victoria and from Western Australia ( Carnarvon ).
habitat
The Baverstock wood bat inhabits grasslands , bush land dominated by goosefoot , rocky deserts, malls , streams, open and closed forests, plains and hilly terrain. It is not known from sandy deserts . It is predominantly widespread where the annual rainfall is less than 400 millimeters. Their habitat also includes semi-arid tropical and subtropical savanna regions , where the average annual rainfall reaches 600 millimeters or more.
Way of life
The females of the Baverstock forest bat use tree hollows and occasionally buildings as day quarters. The size of the colonies ranges from a few individuals to more than 60 members. During early Australian summer (November and December) females gather in colonies to give birth and raise their individual young. The young animal is carried by the mother for the week after birth until its increasing weight interferes with its flight. The young animals then remain in the roost. In January they become independent. The Baverstock forest bat feeds on flying insects , which it prey on in rapid flight.
Systematics
The type specimen, a fully grown male, was shot by Ric A. How in February 1980 near Yuinmery Station in Western Australia at an altitude of about 450 meters. When it was first described scientifically in 1987, the species was placed in the genus Eptesicus . In 1994 it was synonymized by Karl F. Koopman with the small forest bat ( Vespadelus vulturnus ), which is similar to the Baverstock forest bat. In 1997, mammalogist Lynette Frances Queale of the South Australian Museum published an analysis of the Vespadelus species in South Australia . Based on the determination of the females in the field, she determined that the Baverstock forest bat belongs to the species complex of the southern forest bat ( Vespadelus regulus ). As a result, the Baverstock forest bat was recognized again as an independent species within the genus Vespadelus .
status
The IUCN lists the species in the category “not endangered” ( least concern ). It is classified as vulnerable by the government of New South Wales . Due to the difficulty of identifying the species and the overlap of the distribution areas of various Vespadelus species, little is known about the distribution. The species is believed to be widespread, but exact data on its population status are not available.
literature
- Lindy F. Lumsden , Andrew F. Bennett: Bats of a Semi-arid Environment in South-eastern Australia: Biogeography, Ecology and Conservation. Wildlife Research, Vol. 22, 1995, pp. 217-240
- Terry B. Reardon, Alex S. Kutt, Greg C. Richards, Glenn Hoye: Inland Forest Bat In: Steve van Dyck, Ronald Strahan (Eds.): The Mammals of Australia , 3rd edition, Reed New Holland, Sydney, 2008 , Pp. 560-561
- Peter Menkhorst, Frank Knight: A field guide to the mammals of Australia (2nd edition). Melbourne: Oxford University Press. ISBN 978-0-19-557395-4 , 2009, p. 164
Web links
- Vespadelus baverstocki inthe IUCN Red List of Threatened Species 2018.2. Listed by: L. Lumsden, T. Reardon, M. Ellis, 2008. Retrieved March 5, 2019.
- Species profile at the Australian Museum
Individual evidence
- ↑ DJ Kitchener, N. Caputi, B. Jones: Revision of Australian Eptesicus (Microchiroptera: Vespertilionidae). Records of the Western Australian Museum, 13, 1987, pp. 427-500
- ^ Karl F. Coopman Chiroptera: Systematics. Handbook of Zoology. Volume VIII. Part 60. Mammalia, 1994, p. 116
- ↑ LF Queale: Field identification of female little brown bats Vespadelus Spp. (Chiroptera: Vespertilionidae) in South Australia . Records of the South Australian Museum, Volume 30, 1997, pp. 28-33
- ^ NSW Government: Inland Forest Bat - profile