Lesser Large-footed Bat (Myotis hasseltii)

 

Description.

HB: 53-58; T:37-44; FA:38-44, E:16-17; HF:10-12; W:7.5-10g

The pelage is short and velvety, with upperparts grey to pale brown and the underparts somewhat lighter; the individual hairs are dark at the base, with pale silver tips. The ears and wings are pale greyish brown. The interfemoral membrane is large, acutely angular behind; the wings attach at the ankle. The face and muzzle are covered with sparse hairs, with the exposed skin pink in colour. The ears are rather short, extending half the distance eve and the end of the muzzle when laid forward; the tragus is bluntly pointed, with a triangular lobe at its base. The second premolar is displaced inwards so that the first and third premolars are nearly in contact (actually touching in some specimens) ( Hill1972)

Range Description:

This species has a patchily recorded distribution in South Asia and Southeast Asia. In South Asia, this species is presently known from India (West Bengal) and Sri Lanka (Eastern, Northern, North Central and Southern provinces) and has been recorded up to an elevation of 1,000 m asl (Molur et al. 2002). In Southeast Asia, the species is known from Myanmar, Thailand, Cambodia, Vietnam (with a record from Co-Loa [Bates et al. 1999]), Peninsular Malaysia, Indonesia (the Mentawai Islands [Pagai Islands], Riau Archipelago, Sumatra [Bukit Barisan Selatan protected area (Opo pers. comm.)] Java and Sumbawa [Maryanto, pers comm. 2006]) and the island of Borneo (records from Kalimantan [Indonesia] and Sarawak [Malaysia]).
Countries: Native:
Cambodia; India; Indonesia (Jawa, Kalimantan, Sumatera); Malaysia; Myanmar; Sri Lanka; Thailand; Vietnam

Population:

 This is a reasonably common, but locally distributed species. In South Asia, although it is a fairly common bat a declining trend in the population has been observed (Molur et al. 2002).
Population Trend: Unknown

Habitat and Ecology:

In South Asia, this species prefers dry forests but is also seen in mangrove forests. It roosts either solitary or in groups of few individuals among bamboo, cracks of tree trunks, and in old and ruined buildings. It is a low flyer, hunting over water surfaces even the sea. It feeds on small insects like the mosquitoes, gnats, flies and moths (Bates and Harrison 1997). In Southeast Asia, this species is known to feed over open seas, and probably roosts in mangrove forests; it has also been found more inland, where its roosting and feeding habits are poorly known. In view of the species possible association with coastal habitats, it may be the species might be more widespread on Borneo around the islands coasts. Payne et al. (1985) suggested that bats feeding over open water near Sandakan were probably this species. Borissenko and Kruskop (2003) recorded the species from the Bassac River in Cambodia and from Pnom-Penh, always near large water surfaces. The species has also been recorded from large cities, such as Rangoon and Bangkok, and there is also a locality from near Hanoi (Bates et al. 1999). In Rangoon and Bangkok, it is seen hawking for insects and fish over small ponds and lakes within the city. The species was found to roost in caves at Bukit Barisan Selatan (Opo pers. comm. 2006), and has been found roosting in limestone caves in Langkawi Island (Lim Boo Liat pers. comm. 2006).
Systems: Terrestrial

Major Threat(s):

 There appear to be no major threats to this species as a whole. In South Asia, the habitat of this species is being deforested for timber, firewood and conversion for agricultural use and human settlements (Molur et al. 2002).

 Conservation Actions:

This species has been recorded from protected areas in Southeast Asia (eg. Co-Loa, Vietnam). In South Asia, there are no conservation measures in place and it has not been recorded from any protected areas. Ecological studies and population monitoring recommended (Molur et al. 2002).

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