Dendrelaphis bifrenalis 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Reptilia Squamata Colubridae

Scientific Name: Dendrelaphis bifrenalis (Boulenger, 1890)
Common Name(s):
English Boulenger's Bronzeback, Boulenger's Bronze-back, Travancore Bronze-brown Snake
Ahaetulla bifrenalis (Boulenger, 1890)
Dendrophis bifrenalis Boulenger, 1890
Dendrophis boiga ssp. bifrenalis (Boulenger, 1890)

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2010
Date Assessed: 2009-06-30
Assessor(s): de Silva, A.
Reviewer(s): Böhm, M., Collen, B. & Ram, M. (Sampled Red List Index Coordinating Team)
Contributor(s): Zug, G., De Silva, R., Milligan, H.T., Wearn, O.R., Wren, S., Zamin, T., Sears, J., Wilson, P., Lewis, S., Lintott, P. & Powney, G.
Dendrelaphis bifrenalis has been assessed as Least Concern owing to its large distribution. Despite habitat loss occurring with its range, this does not appear to be causing a fast enough rate of population decline to warrant a threatened category listing. Further research and monitoring of D. bifrenalis should be undertaken, as it is possible that localized threats will become more widespread in the future, causing larger population declines in this species.

Geographic Range [top]

Range Description:This species occurs throughout Sri Lanka and southern India (Sharma 2003, de Silva 1990) including the Western Ghats (Bawa et al. 2007). This species is found up to 910 m above sea level.
Countries occurrence:
India; Sri Lanka
Additional data:
Upper elevation limit (metres):910
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is reported to be rare on the Indian mainland, however, it may be more common in Sri Lanka (Sharma 2003, de Silva 1990).
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This diurnal and arboreal species can be found in trees, shrubs and bushes in lowland areas (de Silva 1990). It is often encountered on low vegetation, however, may also descend to the ground in search of food. When moving on the ground, it has a peculiar habit of keeping its head and 1/8 of the forebody erect. Dendrelaphis is one of the quickest snakes to escape and hide.

Threats [top]

Major Threat(s): It is likely that this species has experienced high levels of habitat loss and degradation due to agricultural expansion and logging within its range (Chattopadhyay 1985). However, due to the large distribution of this species, it is likely that this threat is not occurring throughout its range.

Conservation Actions [top]

Conservation Actions: There are no known species-specific conservation measures in place for this species. Further research of the population, habitat status and threats to this species should be carried out, and population monitoring is recommended.

Citation: de Silva, A. 2010. Dendrelaphis bifrenalis. The IUCN Red List of Threatened Species 2010: e.T176781A7303531. . Downloaded on 23 September 2018.
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