AMPHIBIAWEB
Atelognathus praebasalticus
family: Batrachylidae

© 2011 Richard Sage (1 of 1)
Conservation Status (definitions)
IUCN (Red List) Status Endangered (EN)
CITES
Other International Status None
National Status None
Regional Status None

Country distribution from AmphibiaWeb's database: Argentina

 

View distribution map using BerkeleyMapper.

   

From the IUCN Red List Species Account:

 

Range Description

This species is endemic to north-western Argentinean Patagonia, and has been recorded from a number of localities in Neuquen Province. The altitudinal range is from 1,000-1,500m asl.

Habitat and Ecology

It lives on the ground under stones and in humid ravines surrounding small-scattered lagoons, in volcanic tablelands, with steppe and semi-desert landscapes; it is presumed to breed in the lagoons. The species does not occur in modified habitats.

Population

It is a rare species.

Population Trend

decreasing

Major Threats

The main threat is the introduction of predatory fishes (perch and salmonids) in Laguna Blanca, but it is also threatened by the loss of pond side vegetation through overgrazing and trampling by livestock (sheep).

Conservation Actions

The species was previously protected in Parque Nacional Laguna Blanca; however, it is now extirpated in this park because of the introduction of predatory fishes and habitat loss. Three of the subspecies lack any protection, and habitat protection is urgently needed as are measures to prevent the future introduction of predatory fish species.

Red List Status

Endangered (EN)

Rationale

Listed as Endangered because of a serious population decline, estimated to be more than 50% over the last ten years, inferred from observed reduction in population size, and a decline in both the extent of occurrence and area of occupancy, following the impact of introduced predatory fishes on the major subpopulation of the species; and because its Extent of Occurrence is less than 5,000 km2, its distribution is severely fragmented, and there is continuing decline in the Extent of Occurrence, Area of Occupancy, and number of mature individuals.

Taxonomic Notes

The Atelognathus praebasalticus complex needs to be re-examined taxonomically. There are four known subspecies, some of which may constitute new species. Some of these subspecies may be extinct.

Citation

Carmen Úbeda, Néstor Basso, Esteban Lavilla, Boris Blotto 2004. Atelognathus praebasalticus. The IUCN Red List of Threatened Species 2004: e.T56324A11460271. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T56324A11460271.en .Downloaded on 20 November 2018

 

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