Abstract

The survey, conducted in 1991-93 on a study area of 1085 km2, has permitted to define the distribution maps according to 6.4x5.5 km grid of the following species: Meles meles, Mustela ernzinea, Mustela nivalis, Martes foina and Martes martes. Mustela putorius and Lutra lutra, recorded since 1960 and 1970 respectively, were not checked. From the analysis of 201 records (sightings, signs of presence, animals found dead and skins), we found that the badger, weasel and stone marten selected middle-low altitude (since 1000 m a.s.l.), the pine marten and stoat the middle-high altitude. The former species frequented mainly agricultural lands of bottom of the valley with built-up areas, the latter ones occurred mainly in forest habitat of secluded valleys (the pine marten), and in stony ground and alpine prairies (the stoat). The badger was the most diffuse species, the pine marten the least one. On a total of 46 grids of the study area, 32.6% presented three mustelid species, 17.4% five species. The badger and the stone marten were the species with the greatest overlapping range (61.7% of the grids), the weasel and the stoat with the smallest one (23.4% of the grids).

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