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Yudin Yu. (1983). A review of history of creation of the Red Book.
Abstract: A review of history of creation of the Red Book, International Red List, and Red Data Book of the USSR, Red Data Books of Soviet Republics is made. Snow leopard (with a total population of 10 animals) is included in the Red Data Book of the Uzbek SSR as an endangered species. The author gives the examples of careless attitude to plants and animas resulting in decrease of their populations or even extermination.
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Kaletskiy A. (1978). They must live (Vol. N 11.).
Abstract: Among large predators included in the Red Data Book of the USSR and Red List of IUCN the author describes snow leopard. A population of snow leopard in the USSR is estimated to be 500 animals, and no more than 1,000 in the world. In the past, irbis was believed to be a harmful animal and hunting for this species was encouraged. Today, population of the predator is reducing because of poaching and decreasing number of species it preys on such as ibex, wild sheep, wild boar, and marmots. The situation is exacerbated by biological features of this species first of all its slow rate of reproduction. It is concluded that snow leopard needs urgent protection measures since the species is on the verge of disappearance.
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Flint V.E. (1970). The cats – Felidae.
Abstract: Description of 12 cats species from USSR (Felis silvestris, Felis libyca, Felis euptilura, Felis chaus, Felis lynx, Felis caracal, Felis •…‹u1, Felis margarita, Felis tigris, Felis pardus, Felis uncia, Aci‹Œ‹¢o jub…tus) is given. Snow leopard inhabited in mountain ridges of Kazakhstan, Middle Asia, Altai and Sayan.
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Geptner V.G. (1972). Genus snow leopard or irbis (Vol. Vol. 2, Part 2.).
Abstract: It describes genus and species features of snow leopard such as appearance, skull, sizes, phylogenetic links, distribution, geographic variability, biology including number, habitat, refuges, activity in daylight and night, behavioral patterns, reproduction, enemies and rivals, and practical use of the species.
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Zhirnov L.V. (1978). Rare and endangered species of the USSR.
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.
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Bannikov A.G. (1971). Genus Panthera.
Abstract: It gives the description of genus Panthera: lion, tiger, leopard, jaguar and snow leopard. The mountains of Central Asia and South Siberia limit the habitat of snow leopard in the USSR. This species is also distributed in the Himalayas, Tibet, and mountains of Mongolia. In summer, it lives at 3,660 3,970 m above sea level, while in winter, following the ungulates; snow leopard descends to 1,800 m. In the Himalayas, it ascends up to 5,500 m above sea level in summer. In Djungar and Talas Ala-Tau, snow leopard keeps at 600 1,200 m. It takes refuge in caves and cracks of rocks. Snow leopard is mostly active in twilights and night, rarer in daylight, and preys on ungulates, hares, marmots, and others. The coupling period is winter or early spring. A gestation is about 90 days. It has 3 5 cubs in a litter.
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Sokolov V.E. (1989). Family Felidae.
Abstract: It describes big representatives of family Felidae such as lion, tiger, leopard, jaguar, snow leopard, and cheetah. The habitat of snow leopard in USSR extends from the mountains of Central Asia and South Siberia to the Altai and Tuva. It is a non-numerous species all over its habitat. There are 100 300 snow leopards in Nepal, about 100 in Pakistan, and 500 1,000 in the USSR. The snow leopard is included in the Red Data Book of the USSR and Red List of IUCN.
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Pokrovskiy V.S. (1976). Snow leopard, or irbis.
Abstract: It considers biology of snow leopard, provides data concerning its number and distribution, and shows environment correlation of the predator. Besides, it describes the ways of catching snow leopards, and conditions under which it can be kept in enclosures. Precise recommendations for the species protection are given.
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Kaletskiy A.A. (1974). May-“traven”.
Abstract: Diverse flora and fauna and seasonal phenomena in nature are stated in a popular form. Snow leopard is noticed to be a rare species, its population being significantly influenced by catching for zoos: over 400 snow leopards have been caught for this purpose over the last 35 years.
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Bobrinskiy, N. A. (1935). Subgenus Leopardus.
Abstract: Snow Leopard Felis (Leopardus) uncia S c h r † b., 1778 is distributed in the mountains of Central Asia, Turkmenistan (very rare) and Turkestan, on Tarbagatay, Altay, Sayans and in Uriankhay area. Subspecies haven't been described. Body length is about 130 cm, tail length 90 cm.
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