This species is known from the Chaco of Paraguay (in Central, Presidente Hayes, and Alto Paraguay Departments) and northern Argentina (in Chaco, Cordoba, Corrientes, Formosa, Santa Fe, and Santiago del Estero Provinces). In Paraguay it occurs up to 200m asl.
Habitat and Ecology
It inhabits dry scrubland and semi-arid areas, and breeds in temporary pools and water tanks on cattle farms. In Argentina, it occurs in vegetation near saline lakes. During the dry season individuals burrow underground and wait for rains before emerging again. The breeding season is short and larval development is rapid.
It is a common species in Paraguay but is very rare in Argentina, where it was last collected in 1986. Extensive work in an area in Cordoba where it was once recorded has not turned up any recent specimens.
This species can be threatened by fires, and potentially also by over-grazing by livestock.
Its range includes Parque Nacional Defensores del Chaco in Paraguay, although it is not known from any protected areas in Argentina.
Red List Status
Near Threatened (NT)
Listed as Near Threatened because its remaining Extent of Occurrence is probably not much greater than 20,000 km2, and the number of mature individuals is probably declining, thus making the species close to qualifying for Vulnerable.
Lucy Aquino, Ismael di Tada, Julian Faivovich 2004. Lepidobatrachus asper. The IUCN Red List of Threatened Species 2004: e.T57110A11581090. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T57110A11581090.en .Downloaded on 16 November 2018