Hyloxalus edwardsi 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Dendrobatidae

Scientific Name: Hyloxalus edwardsi
Species Authority: (Lynch, 1982)
Common Name(s):
English Edwards' Rocket Frog
Colostethus edwardsi Lynch, 1982
Taxonomic Source(s): Frost, D.R. 2014. Amphibian Species of the World: an Online Reference. Version 6 (27 January 2014). New York, USA. Available at: (Accessed: 27 January 2014).

Assessment Information [top]

Red List Category & Criteria: Critically Endangered () A2ac; B1ab(iii,iv,v)+2ab(iii,iv,v) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Jose Vicente Rueda
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)
Listed as Critically Endangered because of a drastic population decline, estimated to be more than 80% over the last ten years, inferred from the apparent disappearance of most, or all, of the population; and because its Extent of Occurrence is less than 100 km2, and its Area of Occupancy is less than 10 km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its habitat, in the number of sub-populations, and in the number of mature individuals.
Date last seen: 1996

Geographic Range [top]

Range Description: This species is known from two localities in the Cordillera Oriental, La Cueva de las Moyas and the Páramo de Cruz Verde, Cundinamarca Department, Colombia, between 3,030 and 3,300m asl.
Countries occurrence:
Possibly extinct:
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It was last seen in 1996. Three visits to the type locality have failed to turn up this species, and it is likely that it has declined severely due to complete habitat alteration.
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: It occurs in streams within caves and crevices. Breeding and larval development takes place in streams.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): It is threatened by habitat loss due to conversion to timber forestry and water pollution caused by urban runoff.

Conservation Actions [top]

Conservation Actions: The species is not known to occur in any protected areas. Surveys are needed to determine the current population status of the species.

Citation: Jose Vicente Rueda. 2004. Hyloxalus edwardsi. The IUCN Red List of Threatened Species 2004: e.T55074A11248564. . Downloaded on 26 November 2015.
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