Fawn leaf-nosed bat
Fawn leaf-nosed bat | |
---|---|
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Chiroptera |
Family: | Hipposideridae |
Genus: | Hipposideros |
Species: | H. cervinus
|
Binomial name | |
Hipposideros cervinus | |
Fawn roundleaf bat range |
The fawn leaf-nosed bat (Hipposideros cervinus) is a species of bat in the family Hipposideridae found in Australia, Indonesia, Malaysia, the Philippines and Vanuatu.
Taxonomy
The species was first described by
A common name in Australia is fawn leaf-nosed bat,[5] it is also referred to as the fawn roundleaf bat, fawn-colored leaf-nosed bat, fawn horseshoe-bat, fawn leaf-nosed bat and Gould's leaf-nosed bat.[1]
A subspecific arrangement citing the works of Hill and Jenkins, and later treatments published the New Guinea authority
- Hipposideros cervinus
Description
Hipposideros cervinus is a medium-sized hipposiderid with two lateral leaflets on its nose leaf.[7] The nose-leaf is greyish pink, ears triangular.[8] Pups are dark gray in coloration, maturing to a dark brown in adults which often becomes bleached over time, turning a bright orange colour due to the ammonia from droppings in communal roosts.[citation needed]
The form of the nose-leaf distinguishes the species by its squarish outline, which is broader at the lower part, below the nostrils, where small leaflets extend from either side of this structure. The funnel shaped ear becomes pointed at its tip. The colour of the pelage is variable, appearing as a uniform grey to russet highlights over a more greyish brown shade and sometimes presenting as a bright orange colour. The range of measurements describing Hipposideros cervinus for the forearm are 45–48 millimetres, the combined head and body length 41–51 mm, ear length from the tip to the notch at base 13–15 mm. The average mass, derived from a range of 5.6 to 8.5 grams, is 7.0 grams.[9]
Distribution
Hipposideros cervinus is widespread in a region extending from the Malay Peninsula and on larger and smaller islands in the territories of Indonesia and New Guinea. The species occurs at altitudes from sea level up to 1400
Ecology and behaviour
A communal rooster, they are commonly found residing in caves and trees. In 1958 Medway estimated the Niah population to be 250,000.[citation needed]
Hipposideros cervinus is recorded roosting at caves and abandoned mines in groups of individuals that suspend themselves separately, rather than huddling together, and are found cohabiting with other species of hipposiderid bats.
Reproduction is a single birth during November to December.[9] Juveniles attach themselves to their mother by clasping her ventral side with their head facing away, maintaining this position whether she is at the roost or in flight, but turn in the other direction to receive food from their mother.[10]
Conservation
The IUCN Red List assessed the conservation status as least concern in 2021, noting a presumably large and widespread population that is tolerant of some ecological alterations to its environment. Hipposideros cervinus is assumed to be vulnerable to the large scale clearing of forest in the region, although the population trend is unknown.[1] A regional assessment of H. cervinus in the Australian state of Queensland listed the species as vulnerable to extinction.[11] It was previously found in Singapore, but may have become extinct there.[1]
References
- ^ . Retrieved 17 December 2023.
- ^ a b Gould, J.; Richter, H. (1863). The mammals of Australia. Vol. 3. Printed by Taylor and Francis, pub. by the author. pp. pl.34 et seq.
- ^ a b Jenkins, P.D.; Hill, J.E. (1981). "The status of Hipposideros galeritus Cantor, 1846 and Hipposideros cervinus (Gould, 1854) (Chiroptera: Hipposideridae)". Bulletin of the British Museum (Natural History). 41: 279–294.
- .
- ISBN 978-1-877069-25-3
- ^ "Hipposideros cervinus (Gould, 1854)". Integrated Taxonomic Information System. Retrieved 6 June 2019.
- ISBN 9789838121668
- ISBN 9679994716
- ^ ISBN 9780195573954.
- ^ The Australian Museum. November 2019. Retrieved 7 June 2019.
- ^ "Hipposideros cervinus : Fawn Leafnosed-Bat". Atlas of Living Australia. Retrieved 7 June 2019.