Atelopus pulcher 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Bufonidae

Scientific Name: Atelopus pulcher (Boulenger, 1882)
Common Name(s):
Spanish Arlequín Camuflado Peruano
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).
Taxonomic Notes: This species was removed from the synonymy of A. spumarius by Lötters et al. (2002b).

Assessment Information [top]

Red List Category & Criteria: Critically Endangered A2ace ver 3.1
Year Published: 2006
Date Assessed: 2006-01-31
Needs updating
Assessor(s): Stefan Lötters
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 of the population (probably due to chytridiomycosis).
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is distributed along the lower Andean versant in the upper Río Huallaga drainage, Departamentos San Martín and Loreto, Peru. It is present at approximately 600-900m asl. There are populations resembling this species from the north-eastern versant of Peru and adjacent Ecuador, but these are not included in this account until their taxonomic status can be more conclusively verified.
Countries occurrence:
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The current population status of this species is not known, although it was recorded as recently as July 2004. It is now considered to be relatively rare, and has disappeared from many known localities.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This is a diurnal and terrestrial species of lowland and premontane tropical forest. Breeding takes place in streams. It is not known how adaptable the species is to habitat modification.
Systems:Terrestrial; Freshwater

Threats [top]

Major Threat(s): The threats to this species include the potentially devastating impacts of chytridiomycosis (the disease is already present in northern Peru) which was confirmed in this species in 2003. Other threats include localized habitat loss through conversion to agricultural land.

Conservation Actions [top]

Conservation Actions: The species occurs in Parque Nacional Cordillera Azul. A captive-breeding program for this species has been established, and there is ongoing research investigating the biology of a population of this species that apparently has chytridiomycosis.

Citation: Stefan Lötters. 2006. Atelopus pulcher. The IUCN Red List of Threatened Species 2006: e.T54544A11164921. . Downloaded on 20 January 2018.
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