Rhinolophus cognatus 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Chiroptera Rhinolophidae

Scientific Name: Rhinolophus cognatus
Species Authority: K. Andersen, 1906
Common Name(s):
English Andaman Horseshoe Bat
Rhinolophus famulus Andersen, 1918
Taxonomic Notes: This species belongs to pusillus species group (Simmons 2005).

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Molur, S. & Srinivasulu, C.
Reviewer(s): Hutson, A.M., Racey, P.A. (Chiroptera Red List Authority) & Cox, N. (Global Mammal Assessment Team)
Listed as Endangered because of its restricted distribution of extent of occurrence less than 5,000 km² and area of occupancy less than 500 km², it is found only in three locations and there is a continuing decline in habitat quality and extent.
Previously published Red List assessments:
2004 Vulnerable (VU)
1996 Vulnerable (VU)

Geographic Range [top]

Range Description: This species is endemic to South Asia and is presently known only from three Andaman Islands (North Andaman, South Andaman and Narcondom Island) in India (Molur et al. 2002). Elevation details are not known. The extent of occurrence is estimated as less than 5,000 km² and the area of occupancy is 11-500 km² based on the size of the islands (Molur et al. 2002).
Countries occurrence:
India (Andaman Is.)
Estimated area of occupancy (AOO) - km2: 11-500
Number of Locations: 3
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The abundance, population size and trends of this species are not known (Molur et al. 2002).
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: Little is known about the ecology of this species, except that it is a cave dwelling species in rainforests and also occurs in mangrove forests (Molur et al. 2002).
Systems: Terrestrial

Threats [top]

Major Threat(s): The threats to this species remain poorly known, however, the habitat on two of the three islands it has been recorded from are under threat from human settlements following the December 2004 tsunami event. In view of the lifting of the islands resulting from the tsunami, the mangrove forests could be also be affected.

Conservation Actions [top]

Conservation Actions: There are no direct conservation measures in place. It is recorded from the Narcondam Island Wildlife Sanctuary. Further studies are needed into the distribution, population monitoring, ecology and effects of tsunami on the habitat (S. Molur pers. comm. 2007).

Citation: Molur, S. & Srinivasulu, C. 2008. Rhinolophus cognatus. The IUCN Red List of Threatened Species 2008: e.T19533A8957029. . Downloaded on 27 May 2016.
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