Hyloxalus anthracinus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Dendrobatidae

Scientific Name: Hyloxalus anthracinus (Edwards, 1971)
Common Name(s):
English South American Rocket Frog
Colostethus anthracinus Edwards, 1971
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 ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Luis A. Coloma, Santiago Ron, Taran Grant, Manuel Morales
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 three generations, inferred from the apparent disappearance of most of the population, possibly due to chytridiomycosis.

Geographic Range [top]

Range Description:This species occurs in a narrow altitudinal zone (2,710-3,500m asl) on the Cordillera Oriental (Cordillera Real or Central), and the Mazán River in southern Ecuador. There are records from six localities.
Countries occurrence:
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The most recent record of this species is from December 1991. An extensive search in Mazán in 1995 (where the species was abundant in 1986) turned up no individuals. It appears to have undergone a serious decline.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:It lives in páramo, very humid montane forest, and lower humid montane forest (Coloma 1995). Reproduction probably occurs by the females laying eggs on the ground, and the males bringing the tadpoles to streams for development.
Systems:Terrestrial; Freshwater

Threats [top]

Major Threat(s): The primary threat to this species is habitat loss and degradation due to agriculture, and logging. The possible disappearance of the species could be related to chytridiomycosis.

Conservation Actions [top]

Conservation Actions: The range of this species overlaps Parque Nacional Cajas and its southern limit is adjacent to the northern limit of Parque Nacional Podocarpus. Surveys are urgently needed to establish the population status of this species.

Citation: Luis A. Coloma, Santiago Ron, Taran Grant, Manuel Morales. 2004. Hyloxalus anthracinus. The IUCN Red List of Threatened Species 2004: e.T55046A11245440. . Downloaded on 23 September 2018.
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