EN
The whole area of distribution of the Spanish ibex Capra pyrenaica Schinz, 1838 population of Sierra Nevada Natural Park was surveyed for the first time during July-August 1993 and the densities were estimated by using the line transects method. A mean density of 7.69 ± 0.50 ibexes/km2 was obtained, with sex ratio (males/ /females) of 0.80 and kids/adult females rate of 0.39. Data on size and composition of groups and on altitudinal distribution are also included. The demographic trend of ibexes in Sierra Nevada during last 30 years is reconstructed on the basis of data referred to the National Game Reserve, located within our study area.