Abstract: All species inhabiting the highlands of Asia are normally referred to as herbivorous or predators. A majority of alpine land species (rodents and ungulates) feeds upon leaves, stalks, and roots of plants. Among widely distributed highland species the most interesting are marmots, red pica, grey vole, argali, and ibex. Argali and ibex are preyed on by snow leopards. There are reasons to believe that these mountain animal species are more ancient than their cognates in a plain. All the way from Central Asia to Europe, species belonging to the eastern and western fauna complexes are observed to interpenetrate.

Abstract: Though snow leopard is widely distributed in the Altai-Sayans ecologic region (the Krasnoyarsk region, Khakasia, Tuva, the Altai), it is still a rare and understudied species. Its total population in Khakasia is 10-12 animals, in the Altai 60-70 animals.

Abstract: Reasons for ibex and argali mortality from natural enemies, parasites, infections, accidents, and hunters are analyzed. Snow leopard is one of the most dangerous enemies of ibex and argali, preying equally on both young and mature animals (mostly males). Snow leopard feeds upon ibex all year round. Unlike wolf, snow leopard would never kill several animals at a time, but only one selected victim. The food remains left by these predators are different in terms of the skull gnawing. Nasal bones and eye-sockets on the skull of ibex killed by snow leopard remain undamaged, while wolf gnaws off nasal part of the skull, breaks eye-sockets, eats lower jaw, widens occipital hole and pulls out brains. Snow leopard leaves large pieces of skin around the skeleton of the victim, whereas wolf tears it to shreds or eats up fully. Sometimes parts of the victim left by snow leopard are eaten by wolf. It is easy to mix the remains of snow leopard's or griffon vulture's food. The remains differ in skin being turned inside out rather than torn to large pieces.

Abstract: There are three fish species, two amphibian species, nine reptile, 97 bird species, and 23 mammal species, including snow leopard, in the Chatkal reserve. A list of animals and their brief description is provided.

Abstract: The Chatkal state mountain forest nature reserve is located in western spurs of the Chatkal ridge. The permanent inhabitants of the nature reserve are ibex, wild boar, roe-deer, bear, badger, porcupine, stone marten, fox, ermine, Menzbier's marmot, and relict suslik (gopher), and bird species such as gray partridge, snow-cock, black vulture, griffon vulture, etc. Under special protection are rare animal and bird species such as snow leopard, Menzbier's marmot, bearded vulture, golden eagle, etc.