Abstract: Uncia uncia is one of the rare large species on the brink of extinction in Felidae in the world, and inhabit only the Central Asian mountains. It is said that there are currently only 4500-7300 Uncia uncia surviving. During the period from September 2004 to July 2005, the habitat selection of Uncia uncia was investigated in some mountains in Xinjiang, including the eastern Tianshan Mountains, Beita Mountains, Altay Mounts and Mount Tumor National Nature Reserve. In several months of fieldwork, we got 171 sign samples of Uncia uncia and 123 random samples in total. Five habitat features, i.e., the elevation, topographic features, vegetation type, grazing status and ruggedness, are selected to compare the difference of selectivity of the Uncia uncia habitat selection. The Chi-square goodness-of-fit test and the binomial test are used to check the significance of Uncia uncia habitat selection, and the principal component analysis is used to find the primary factors in in the selection. The result s are as follows : (1) Uncia uncia selected all kinds of the habitat types , especially the elevation , topography , vegetation types and ruggedness ; (2) Ruggedness and the vegetation types are the preliminary factors for the habitat selection. Topography is the secondary factor ; (3) Uncia uncia prefer to inhabit in the rugged habitat s with moderate shrubberies , and they also like to leave signs in valley bottoms rather than hillsides.

Abstract: Description of Felidae family species (Tigris tigris, D…nthera d…rdus, Unci uncia, Felis silvestris, Felis ocreata, Felis †udtilur…, L¢no l¢no, A¤tŒn¢o jub…tus) is given. Snow leopard inhabited in mountain ridges of Middle and Central Asia.

Abstract: It gives the description of communicative behavioral system (visual, olfactory and vocal elements) for two groups of large Felidae species such as leopard-irbis and lynx-caracal. General and specific behavioral regularities are given.

Abstract: It describes identification features of the Felidae family species (ItŒ¤ŒlŒbus, A¤inŒn¢o, L¢no, Oigris, D…rdus, Uncia, r†m…†lurus, ¥…a…¤…l, ¥atolynx, Felis): colour, body size and skull length, length of limbs, presence or absence of ear-brushes, cheek-bones width, nasal bones, palatine bone, rapacious tooth, and acoustical capsules.

Abstract: A taxonomic characteristic of family Felidae is given. A brief description of the origin and distribution of modern Felidae species is provided. Snow leopard (Felis uncia) is noticed to be met in the mountains of Central Asia. It says that though being a rare species, snow leopard, together with leopard and tiger, causes a considerable damage by exterminating large ungulates and sometimes attacking man.