The eastern barbastelle or Asian barbastelle (''Barbastella darjelingensis'') is a species of
vesper bat
Vespertilionidae is a family of microbats, of the order Chiroptera, flying, insect-eating mammals variously described as the common, vesper, or simple nosed bats. The vespertilionid family is the most diverse and widely distributed of bat famili ...
found throughout much of
Asia
Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...
, from
Afghanistan
Afghanistan, officially the Islamic Emirate of Afghanistan, is a landlocked country located at the crossroads of Central Asia and South Asia. It is bordered by Pakistan to the Durand Line, east and south, Iran to the Afghanistan–Iran borde ...
to
Taiwan
Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main geography of Taiwan, island of Taiwan, also known as ''Formosa'', lies between the East China Sea, East and South China Seas in the northwestern Pacific Ocea ...
.
Taxonomy
It was described by
Brian Houghton Hodgson
Brian Houghton Hodgson (1 February 1801 – 23 May 1894) was a pioneer natural history, naturalist and ethnologist working in India and Nepal where he was a British Resident (title), Resident. He described numerous species of birds and mammals fr ...
in 1855, and was previously thought to be a subspecies of the
Arabian barbastelle
The Arabian Peninsula (, , or , , ) or Arabia, is a peninsula in West Asia, situated north-east of Africa on the Arabian plate. At , comparable in size to India, the Arabian Peninsula is the largest peninsula in the world.
Geographically, the ...
(''B. leucomelas''), with ''B. leucomelas'' being previously known as the eastern or Asian barbastelle when it contained ''B. darjelingensis''. However, a 2008 study, and several later genetic analyses, found ''B. leucomelas'' to be a distinct species from ''B. darjelingensis'', and thus split them both.
The
American Society of Mammalogists The American Society of Mammalogists (ASM) was founded in 1919. Its primary purpose is to encourage the study of mammal
A mammal () is a vertebrate animal of the Class (biology), class Mammalia (). Mammals are characterised by the presence ...
,
IUCN Red List
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological ...
, and
ITIS
The Integrated Taxonomic Information System (ITIS) is an American partnership of federal agencies designed to provide consistent and reliable information on the taxonomy of biological species. ITIS was originally formed in 1996 as an interagenc ...
all follow the results of this study. Further genetic studies indicate that ''B. darjelingensis'' itself contains many cryptic lineages that could represent distinct species, but this is disputed due to all most populations having similar morphology to one another.
However, the
Caspian barbastelle
The Caspian barbastelle (''Barbastella caspica'') is a species of vesper bat found in Western and Central Asia. Its range includes Armenia, Azerbaijan, Iran, and the Russian republic Dagestan
Dagestan ( ; ; ), officially the Republic of ...
(''B. caspica'') and
Japanese barbastelle
Japanese may refer to:
* Something from or related to Japan, an island country in East Asia
* Japanese language, spoken mainly in Japan
* Japanese people, the ethnic group that identifies with Japan through ancestry or culture
** Japanese diaspor ...
(''B. pacifica'') are indeed thought to represent distinct species and have been split as such by the ASM and ITIS, with the IUCN also acknowledging them but not yet providing a conservation status.
The
specific epithet
In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin gramm ...
''darjelingensis'' references the
Indian
Indian or Indians may refer to:
Associated with India
* of or related to India
** Indian people
** Indian diaspora
** Languages of India
** Indian English, a dialect of the English language
** Indian cuisine
Associated with indigenous peoples o ...
town of
Darjeeling
Darjeeling (, , ) is a city in the northernmost region of the States and union territories of India, Indian state of West Bengal. Located in the Eastern Himalayas, it has an average elevation of . To the west of Darjeeling lies the Koshi Pr ...
, the
type locality of this species.
Distribution and habitat
This species has a very wide range across Central, South, and East Asia, ranging from
Afghanistan
Afghanistan, officially the Islamic Emirate of Afghanistan, is a landlocked country located at the crossroads of Central Asia and South Asia. It is bordered by Pakistan to the Durand Line, east and south, Iran to the Afghanistan–Iran borde ...
south throughout the
Himalayas
The Himalayas, or Himalaya ( ), is a mountain range in Asia, separating the plains of the Indian subcontinent from the Tibetan Plateau. The range has some of the Earth's highest peaks, including the highest, Mount Everest. More than list of h ...
and east through
China
China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...
, as far east as
Taiwan
Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main geography of Taiwan, island of Taiwan, also known as ''Formosa'', lies between the East China Sea, East and South China Seas in the northwestern Pacific Ocea ...
and as far south as
Vietnam
Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...
. There is a single dubious record from
Tamil Nadu
Tamil Nadu (; , TN) is the southernmost States and union territories of India, state of India. The List of states and union territories of India by area, tenth largest Indian state by area and the List of states and union territories of Indi ...
in southern
India
India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
. Its range is thought to comprise mountainous areas at moderate elevations, where it inhabits montane temperate and subtropical forests. It likely roosts in caves, rock crevices, and tree hollows. It has been recorded foraging over streams.
Status
This species may be threatened by unregulated visits to and destruction of the underground cavities where it roosts, as well as destruction of and use of pesticides in foraging habitat.
Populations in South Asia are threatened by deforestation, which has reduced the range and quality of potential habitat for this species.
However, it has a wide range with significant portions in sparsely populated regions, so it is not thought to be threatened. However, if the cryptic lineages within this species are found out to represent valid species of their own, they may warrant a higher threat status.
References
{{Taxonbar, from=Q104249740
Barbastella
Bats of Asia
Mammals described in 1855
Taxa named by Brian Houghton Hodgson