The selection of breeding dens by the endangered Iberian lynx (Lynx pardinus): implications for its conservation

We investigated the preferences shown by Iberian lynx (Lynx pardinus) for s tructures and sites for denning in Donana National Park. Lynx proved to be highly selective regarding the features of the natural structures selected, but their preferences concerning the characteristics of the habitat for th e denning sites were not so evident. All located litters were born inside h ollow trunks with very large cavities (mean area = 0.40 m(2)). Later, they were moved into bushes characterised by their large size (mean area = 201.7 m2) and protective capabilities. We used logistic regressions to explore t he relative strength of association between the selection of dens, the char acteristics of their structure and those of the habitat around dens. The re gressions indicated that the physical nature of dens was more important for breeding lynxes than habitat features (like prey densities or structure of vegetation). Preserving old growth habitats is important for the conservat ion of the endangered Iberian lynx because they provide suitable breeding s tructures. (C) 2000 Elsevier Science Ltd. All rights reserved.