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Gayana (Concepción)

versión On-line ISSN 0717-6538

Resumen

ELGUETA, Emma et al. Terrestrial vertebrate baseline and analysis in six habitats present in the National Reserve Futaleufu, Palena Province, X Region, Chile. Gayana (Concepc.) [online]. 2006, vol.70, n.2, pp. 195-205. ISSN 0717-6538.  http://dx.doi.org/10.4067/S0717-65382006000200006.

We surveyed the mammals, birds, reptiles and amphibians in six distinct habitat types in the Futaleufú National Reserve, in the province of Palena, Chile. These habitats occur from 700 masl up to 2.000 masl: cypress forest, mixed shrubland, lenga and coigüe forest, early successional Nothofagus tree areas, scrubland and ñirre trees in rocky areas with seasonal snow. A total of 60 species were recorded in the Reserve: 17 terrestrial mammals, 38 bird species, four amphibians and one reptile species. We highlight the presence of huemules in almost all the habitats. Habitat type analysis showed that lenga-coigüe forests have the highest species richness for all taxa, besides having also a higher structural heterogeneity. The mixed shrubland, which limits with pastures and agriculture fields, together with the early successional Nothofagus tree areas represent the second and third habitats with highest species richness. We warn of the fragility of the system for the maintenance of vertebrate populations, because towards the edge of the Reserve, an interface results between the use by domestic animals (dogs, livestock and horses) and the wild endemic fauna or with conservation problems.

Palabras clave : Biodiversity; wildlife reserve areas; Patagonic fauna.

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