Renard d'Aszara

Little quantitative data are available on the abundance of Pampas Fox populations. Population densities of 1.8 individuals/km² and 1.1-1.5 individuals/km² were estimated for the Bolivian Chaco (Ayala and Noss 2000) and a protected area of central Argentina (Luengos Vidal et al. 2012), respectively. Although no long-term population monitoring has been carried out, populations generally are considered stable.

In the coastal area of central Argentina, a study based on scent-stations found that Pampas Fox signs were more frequent than Molina's Hog-nosed Skunk (Conepatus chinga) and Grison (Galictis cuja) (García and Kittlein 2005). Similarly, the frequency of observation of Pampas Fox was higher than that of Molina's Hog-nosed Skunk, Grison, and Geoffroy's Cat (Leopardus geoffroyi) both in a Sierra grassland area and in a cropland area of Buenos Aires Province (Luengos et al. 2005). Recent camera trapping data indicate that it is the most common carnivore in an area of 27,300 km² of the Argentine Espinal (Caruso 2015). In areas where the Pampas Fox is sympatric with the Crab-eating Fox (Cerdocyon thous), the former would be more abundant in open habitats, while the latter would more frequently inhabit woodland areas (Vieira and Port 2007, Di Bitetti et al. 2009, Faria-Corrêa et al. 2009).

The Pampas Fox seems to be tolerant of human disturbance, being common in rural areas, where introduced exotic mammals, such as the European hare (Lepus europaeus), could form the bulk of its food intake (Crespo 1971, Farias and Kittlein 2008, D. Birochio and M. Lucherini pers. obs.).