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Brief Summary

    Lesser false vampire bat: Brief Summary
    provided by wikipedia

    The lesser false vampire bat (Megaderma spasma) is a bat found in South Asia and Southeast Asia from Sri Lanka and India in the west to Indonesia and the Philippines in the east. They live in caves and tree hollows. They are insectivorous.

    The lesser false vampire bat has a wingspan of up to 30 centimetres (12 in) and have a head-and-body length of around 10 centimetres (3.9 in). Their forearms are normally around 7 centimetres (2.8 in).

    The lesser false vampire bat has yellowish veins through the wing, and when the wings are spread with light behind, they are given a prominent yellow/orange tinge. Their body colour ranges from grey-brown to blue-brown. Lesser false vampire bats live in rock crevices, caves, foliage and hollow trees, depending on availability, as well as hanging and sleeping on trees in general.

    Megaderma spasma is from the order Chiroptera and family Megadermatidae which comprises four genera and five species. M. spasma also known as lesser false vampire. Its type locality was in Indonesia, Molucca Islands and Ternate. There are two specimens of M. spasma collected in Sarawak Museum Unimas, one from Niah and another one from batu 16, Ulu Gombak. M. spasma was distributed in India to Indochina and Malay Peninsula, Sri Lanka, Andaman Islands, Sumatra, Borneo, Moluccas, Philippines, Sulawesi and other Indonesian islands. In Borneo, it can found in Sepilok, Darvel Bay area in Sabah, Niah and Kuching in Sarawak, upper S. Kapuas in West and upper S. Tengah in South Kalimantan. It is most closely related to the greater false vampire bat, which is the only other species in the genus Megaderma.

    M. spasma has fur pale grey to grey-brown in colour. Its noseleaf has long dorsal lobe with stiffened central ridge and broad convex flaps on the sides. Its ears are very large, joined at the base and it has no visible tail. Its echolocation pulses are short, low in density and broadband and its large ears are sensitive to echoes returning from their pulses and also sensitive to the sounds that prey generates. M. spasma usually roosts in groups in caves, pits, building, and hollow trees. M. spasma favours grasshoppers and moths but sometimes they eat small vertebrates including other bats. They have well developed, forward-pointing eyes and can locate prey visually.

    M. spasma usually roosts in a group of 3–30 individuals. Their ecological importance may be both positive and negative to humans. They eat some insects which harm human crops, but they may carry and transmit certain diseases.

    The bat is known as කන් දිගු බොරු ලේ වවුලා (kan-digu boru le wawula - meaning "long eared false vampire bat") in Sinhala.

Comprehensive Description

Distribution

    Distribution
    provided by Animal Diversity Web

    India and Sri Lanka to Indochina, Malaysia, Indonesia, and the Philippines.

    Biogeographic Regions: oriental (Native )

Morphology

    Morphology
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    The total body length is from 65-95mm. There is no external tail. The fur is bluish-gray along the back and brownish-gray along the underside.

    Other Physical Features: endothermic ; bilateral symmetry

Habitat

    Habitat
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    This species can live in a variety of habitats including hollow trees, caves, buildings, and any other large, sheltered structure. They are usually found in wet areas.

    Terrestrial Biomes: forest ; rainforest

Trophic Strategy

    Trophic Strategy
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    Primarily an insectivore but can be carnivorous, feeding on lizards, other small reptiles, and small rodents.

Behavior

    Behavior
    provided by Animal Diversity Web

    Perception Channels: tactile ; chemical

Reproduction

    Reproduction
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    Males and females live together throughout the year. The mating season is from November to January. The young (usually 1, rarely 2) are born between April and June after a 150-160 day gestation period. The birth of the young is timed to occur before the monsoon season sets in. The young grow very rapidly and are carried by the mother for 2-3 months.

    Key Reproductive Features: gonochoric/gonochoristic/dioecious (sexes separate); sexual

Conservation Status

    Conservation Status
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    The Asian False Vampire Bat is not considered threatened or endangered.

    IUCN Red List of Threatened Species: least concern

Benefits

    Benefits
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    No documented examples.

    Benefits
    provided by Animal Diversity Web

    No documented examples. May help control harmful insect pests.