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

摘要

We investigated the preferences shown by Iberian lynx (Lynx pardinus) for structures and sites for denning in the Donana National Park, Spain (in scrub vegetation with scattered trees). Lynx proved to be highly selective regarding the features of the natural structures selected, but their preferences concerning the characteristics of the habitat for the denning sites were not so evident. All located litters were born inside hollow trunks (Quercus suber, Fraxinus angustifolia) with very large cavities (mean area=0.40 m2). 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 the relative strength of association between the selection of dens, thecharacteristics of their structure and those of the habitat around dens. The regressions indicated that the physical nature of dens was more important for breeding lynxes than habitat features (like prey densities or structure of vegetation). Preservingold growth habitats is important for the conservation of the endangered Iberian lynx because they provide suitable breeding structures.