Korelov M.N. (1956). The vertebrates of Bostandyk region.
Abstract: Data about faunistic complexes of Bostandyk region is provided. Snow leopard inhabited in high mountains of Chatkal, Pskem and Ugam ridges. The tracks of irbis were recorded in the snowfield near the edge of Pskem ridge (upper Ichnach-say river).
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Novikov G.A. (1956). Sub-genus UNCIA Gray.
Abstract: Identification features of the sub-genus Uncia (colour; length of body and tail; shoulder height, and skull measurements) are given. Distribution, habitat, way of life, reproduction biology, behavioural patterns, migration routes, commercial value of snow leopard in the USSR is described.
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Egorov O.V. (1955). Enemies, infections, parasites and mortality rate of ibex (Vol. Vol. 42.).
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.
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Bannikov, A. (1954). Mammals of the Mongolian People's Republic. Moscow: Academy of Sciences.
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Severtsov N.A. (1953). Animals. Mammalia. Typical mountain animals. Taxonomic tables of the Turkistan fauna.
Abstract: Geo-botanic and zoogeographical description of altitude landscape zones of Central Asia is given. Snow leopard (Felis irbis), ibex (Capra sibirica), brown bear (Ursus leuconyx), dhole (Canis alpinus) and others (10 species in total) are vertically distributed (2,348 3,048 m) in the deciduous forest, fir forest and alpine meadow zones.
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Formozov A.N. (1952). Tiger and snow leopard.
Abstract: Over the last decades tiger, leopard and snow leopard were fully exterminated in many areas, where they formerly were common species and now became very rare ones. Few leopards can still be found in Caucasus, Copet-Dag (Turkmenistan) and south of Primorskiy krai. Irbis is remaining a common species only in the difficult-of-access highland areas of Tien Shan and very rare in the Altai. Tiger traces are sometimes found in the Amudarya river valley and in the taiga Sihote-Alinya in the Far East.
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Bobrinskiy N.A. (1951). The mountains of Central Asia.
Abstract: Given is a general characteristic of fauna complexes in the mountains of Central Asia (Jungar Ala-Tau, Tien Shan, Hissar Alai, Kopet-Dag), peculiarities of animal distribution in association with folded mountain relief, vertical zoning, anthropogenic influence and importance of mountain fauna for human beings. It provides a description of main animal groups and is an effort of zoning fauna of the mountains of Central Asia.
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Ognev S.I. (1951). The cats (Felidae).
Abstract: A list of mammals of the USSR fauna by orders is presented. Data of distribution and ecology mainly concerns the species of commercial value. From this viewpoint the Felidae species such as tiger, leopard, snow leopard, and lynx are referred to a category of accidentally hunted species of low commercial value.
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Kuznetsov B.A. (1950). The mountainous province in Central Asia (Vol. Edition 20th. (XXXV). New series. Zoological secti).
Abstract: The landscape and biologic diversity of Central Asia's mountains are described. Different types of fauna complexes are segregated. Snow leopard, dhole, and ibex are referred to Central Asia's highland species.
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Naumov S.P. (1950). The cats – Felidae.
Abstract: Description of Felidae family species (Tigris tigris, 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.
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