Habitat use by Oncifelis guigna and Pseudalopex culpaeus in a fragmented forest landscape in central Chile.

摘要: Native forests in Chile have been replaced by exotic plantations, generating a mosaic of forest fragments immersed matrix plantations and farms. This landscape change could affect habitat availability for native carnivores such as Oncifelis guigna (Felidae) Pseudalopex culpaeus (Canidae). We determine the potential impact fragmentation on these species, assessinghabitat use carnivores. The study was carried out continuous (150 ha), (<10 ha) surrounding pine central (35°59′ S, 72°41′ W). placed scent-stations (SSs) three types from January to August 2000, setting total 620 SSs selection. characterized structure composition 100 m2 vegetation aroundevery SS, measured its distance nearest patch, road bottom creek. O. preferred habitats with dense bush cover, far roads close large patches forest, being almost exclusively restricted this type habitat. On other hand, P. openhabitats, roads, relying extensively but scarcely using fragments. Our results suggest that fragmentation, considering only, would negative effect populations. Thus, size reduction isolation may reduce O.guigna survival dominated landscape. In contrast, culpaeus, generalist species depending abundance, adapt changes