Abstract: A group of rare and endangered species was segregated within the game and non-game mammals of the USSR. Some species in the group were formerly referred to game species. But due to over-hunting and the absence of measures aimed at their reproduction the population dropped sharply. Mammal fauna of the USSR includes more than 80 species that require special protection. The Red list of IUCN includes, among the others, white bear, Transcaucasian sub-species of brown bear, Amur and Turan tigers, snow leopard, Caucasian and Amur leopards, caracal, cheetah, Tien-Shan and Ussuri sub-species of dhole, Atlantic walrus, island seal, kulan, Bukhara red deer, New Land reindeer, goitered gazelle, Menzbier's marmot.

Abstract: In 1981, rare Felidae species such as snow leopard, Turkistan lynx, and manul (one encounter recorded) were found in the Besh-Aral nature reserve (the Chatkal valley). Illegal hunting and high concentration of people in some places is emphasized to impact the animal populations.

Abstract: It described categories of threat (Category A and Category B). Snow leopard was assessed under Category A the species whose numbers and habitats have sharply diminished and are continuing to diminish as a consequence of direct persecution, destruction of their habitat or other causes. The snow leopard (Pardus uncia) inhabits the mountains of the Tien Shan range, Tarbagatai, Saur, Altai and the Sayans. Exploitation of mountain areas and depletion of stocks of wild ungulates (Siberian mountain goats and wild sheep) have led to a sharp reduction in the number of snow leopards. It is estimated that today only about one thousand leopards are left, and they have accordingly been placed under complete protection. Hunting and selective shooting are everywhere prohibited. Catching leopards is regulated by the articles of the international convention restricting trade in rare species of plants and animals.

Abstract: A description of snow leopard number, distribution, reproductive biology, death reasons, and conservation measures in the USSR, where northern and north-western border of its habitat runs, is given. The population of snow leopard in the USSR is 500 1,000 animals. In the Inner Tien Shan, 400 snow leopards were caught 1936 through 1970. The maximum of 120 skins was purchased in Pamir in 1956 1958. Population of snow leopard directly correlates with population of ibex, a fact being verified by data collected on a long-term basis. Moreover, snow leopard was for a long time considered as a harmful animal, shooting of which was encouraged by premiums and resulted in reduction of snow leopard population.

Abstract: As a result of paleontologic and ecologic research on the south of Uzbekistan 35 rare and endangered mammal species were detected: rare species: bear, steppe polecat, otter, chaus, lynx, manul, sand cat, leopard, snow leopard, Bukhara deer, Goitered gazelle, ibex, markhor, Asian argali, and others; extinct species: dhole, striped hyena, cave hyena, tiger, elephant, horse, kulan, Pleistocene donkey, rhinoceros, Knobloch's camel, roe deer, moral, argali, aurochs, and bison.