Fig. 1

Map of the Iberian Peninsula showing the current Iberian ibex (Capra pyrenaica) distribution and the location of the studied populations. The MHC DRB1alleles are shown in red (DRB1*1 = 1, DRB1*2 = 2, DRB1*3 = 3, DRB1*5 = 5, DRB1*6 = 6, and DRB1*7 = 7). The populations in the Sierra Nevada National Park (10), Puertos de Tortosa and Beceite National Hunting Reserve (12), and Batuecas-Sierra de Francia Natural Park (13) have previously been studied by Alasaad et al. [23]