Raorchestes signatus 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Rhacophoridae

Scientific Name: Raorchestes signatus
Species Authority: (Boulenger, 1882)
Ixalus signatus Boulenger, 1882
Philautus signatus (Boulenger, 1882)
Pseudophilautus signatus (Boulenger, 1882)
Taxonomic Notes: Specimens recorded from Ponmudi Hills (and possibly Wayanad) as Philautus signatus are in the process of being described as the new species Philautus sp. nov. 'Ponmudi_3' (S.D. Biju pers. comm.).

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): S.D. Biju, Gajanan Dasaramji Bhuddhe, Bexel Ayyasamy Daniel, Sushil Dutta, Karthikeyan Vasudevan
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson and Neil Cox)
Listed as Endangered because its Extent of Occurrence is less than 5,000 km2, its distribution is severely fragmented, and there is a continuing decline in the extent and quality of its forest habitat.

Geographic Range [top]

Range Description: This species is known with certainty only from the Nilgiri Hills of the southern Western Ghats of India. It is a highland species occurring up to 2,000m asl.
Countries occurrence:
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It is commonly seen in the Nilgiri Hills (Bossuyt and Dubois 2001), but is believed to be declining.
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: It is an arboreal species associated with tropical moist evergreen forest, although it can occur in modified areas. Breeding is by direct development.
Systems: Terrestrial

Threats [top]

Major Threat(s): The major threat is the conversion of native forest to intensively cultivated areas (including timber and non-timber plantations).

Conservation Actions [top]

Conservation Actions: It has been recorded from the Nilgiri Biosphere Reserve. The species was recently included in field studies by Biju (1998-2001).

Citation: S.D. Biju, Gajanan Dasaramji Bhuddhe, Bexel Ayyasamy Daniel, Sushil Dutta, Karthikeyan Vasudevan. 2004. Raorchestes signatus. The IUCN Red List of Threatened Species 2004: e.T58903A11852815. . Downloaded on 02 December 2015.
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