AMPHIBIAWEB
Hyloxalus edwardsi
family: Dendrobatidae
subfamily: Hyloxalinae
Conservation Status (definitions)
IUCN (Red List) Status Critically Endangered (CR)
CITES
Other International Status None
National Status None
Regional Status None

Country distribution from AmphibiaWeb's database: Colombia

 

View distribution map using BerkeleyMapper.

   

From the IUCN Red List Species Account:

 

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 3,030–3,300 m asl. There is no suitable habitat between known localities. Its extent of occurrence (EOO) is 157 km2, its AOO is estimated as 8 km2, and it occurs in two threat-defined locations in two different páramos separated by grazing for cattle and cultivated lands.

Habitat and Ecology

This species occurs in streams within caves and crevices. Breeding and larval development takes place in streams.

Population

This species was last seen in 1996. Three visits to the type locality and other attempts to find the species have failed to turn up this species and it is likely that it has declined severely due to complete habitat alteration (Colombia Amphibian Red List Assessment Workshop 2016). Due to the lack of suitable habitat between the two known sites, no dispersal is thought to occur between them, making the population severely fragmented.

Population Trend

decreasing

Major Threats

It is threatened by habitat loss due to conversion to timber forestry and water pollution caused by urban runoff.

Conservation Actions

Conservation Actions
The species is not known to occur in any protected areas. 

Research Needed
Surveys are needed to determine the current population status of the species.

Red List Status

Critically Endangered (CR)

Rationale

Listed as Critically Endangered its area of occupancy (AOO) is approximately 8 km2, its population is severely fragmented, and there is continuing decline in the extent and quality of its habitat.

Citation

IUCN SSC Amphibian Specialist Group 2017. Hyloxalus edwardsi. The IUCN Red List of Threatened Species 2017: e.T55074A85893381. http://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T55074A85893381.en .Downloaded on 9 December 2018

 

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