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Hyloscirtus colymba

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA AMPHIBIA ANURA HYLIDAE

Scientific Name: Hyloscirtus colymba
Species Authority: (Dunn, 1931)
Synonym/s:
Hyla alvaradoi Taylor, 1952
Taxonomic Notes: This species was previously within the genus Hyla but has recently been moved to the resurrected genus Hyloscirtus (Faivovich et al. 2005).

Assessment Information [top]

Red List Category & Criteria: Critically Endangered A4ace ver 3.1
Year Published: 2004
Date Assessed: 2008-01-01
Assessor/s: Frank Solís, Roberto Ibáñez, Gerardo Chaves, Jay Savage, César Jaramillo, Querube Fuenmayor, Federico Bolaños, Karen Lips
Reviewer/s: Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)
Justification:
Listed as Critically Endangered because of a drastic population decline, estimated to be more than 80% over a ten year period, inferred from ongoing rapid declines in populations infected with chytridiomycosis, and general habitat destruction and/or degradation.

Geographic Range [top]

Range Description: This species is known from the Atlantic slopes of south-eastern Costa Rica to central Panama, from sea level to 1,116m asl, and also from the Pacific slopes of eastern Panama (Savage 2002). The possible presence of this species in Colombia adjacent to eastern Panama needs to be confirmed.
Countries:
Native:
Costa Rica; Panama
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Little is known about the population size or abundance of this species. It has disappeared from western Panama, including Reserva Forestal Fortuna (1996-97), and El Copé (2004); it is still present at low abundance in the Darien area (Roberto Ibáñez pers. comm. 2007). Remaining populations in central and eastern Panama are expected to severely decline in the near future (Karen Lips and Roberto Ibáñez pers. comm. 2007). In Costa Rica, the species has not been recorded recently, however there has been little sampling effort in the range (Federico Bolaños pers. comm. 2007).
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: It inhabits cloud forest or humid lowland and montane forest, where it has been found along streams. The species breeds in swift streams; eggs are deposited under rocks, and larvae cling to rocks by means of an oral disk (Savage 2002).
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): The declines in western Panama are probably due to chytridiomycosis (see Lips et al. 2006), and this is likely to be the most serious threat to the species. It is probably also impacted by the destruction of natural forests for the planting of crops, smallholder livestock ranching, and logging.

Conservation Actions [top]

Conservation Actions: It is known from several protected areas in Panama, and a single park in Costa Rica (Parque Internacional La Amistad). In view of the risk of chytridiomycosis, the status of this species should be closely monitored, and ex-situ populations should be established.
Citation: Frank Solís, Roberto Ibáñez, Gerardo Chaves, Jay Savage, César Jaramillo, Querube Fuenmayor, Federico Bolaños, Karen Lips 2004. Hyloscirtus colymba. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 21 April 2014.
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