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Ale S. (2005). Have snow leopards made a comeback to the Everest region of Nepal?.
Abstract: In the 1960s, the endangered snow leopard was locally extirpated from the Sagarmatha (Mt. Everest) region of Nepal. In this Sherpa-inhabited high Himalaya, the flourishing tourism since the ascent of Mt Everest in 1953, has caused both prosperity and adverse impacts, the concern that catalyzed the establishment of Mt. Everest National Park in the region in 1976. In the late 1980s, there were reports that some transient snow leopards may have visited the area from adjoining Tibet, but no biological surveys exist to confirm the status of the cats and their prey. Have snow leopards finally returned to the top of the world? Exploring this question was the main purpose of this research project. We systematically walked altogether 24 sign transects covering over 13 km in length in three valleys, i.e. Namche, Phortse and Gokyo, of the park, and counted several snow leopard signs. The results indicated that snow leopards have made a comeback in the park in response to decades of protective measures, the virtual cessation of hunting and the recovery of the Himalayan tahr which is snow leopard's prey. The average sign density (4.2 signs/km and 2.5 sign sites/km) was comparable to that reported from other parts of the cats' range in the Himalaya. On this basis, we estimated the cat density in the Everest region between 1 to 3 cats per 100 sq km, a figure that was supported by different sets of pugmarks and actual sightings of snow leopards in the 60 km2 sample survey area. In the study area, tahr population had a low reproductive rate (e.g. kids-to-females ratio, 0.1, in Namche). Since predators can influence the size and the structure of prey species populations through mortality and through non-lethal effects or predation risk, snow leopards could have been the cause of the population dynamics of tahr in Sagarmtha, but this study could not confirm this speculation for which further probing may be required.
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Koshkarev, E. (1997). Has the Snow Leopard Disappeared from Eastern Sayan and Western Hovsogol? In R.Jackson, & A.Ahmad (Eds.), (pp. 96–107). Lahore, Pakistan: Islt.
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Meiers, S. T. (1992). Habitat use by captive puma (Felis concolor) and snow leopards (Pathera uncia) at the Lincoln Park Zoo, Chicago, Illinois. Ph.D. thesis, DePaul University, .
Abstract: Between May 1990 and January 1991, behavioral observations were made of two captive pumas (Felis concolor Linnaeus), and two captive snow leopards (Panthera uncia Schreber) in their outdoor exhibits at the Lincoln Park Zoological Gardens, Chicago, Illinois. Behaviors compared within and between species included: 1) time spend in the different habitat types; 2) time budgets for the different behaviors: laying, moving, sitting, standing, crouching, in the tree, drinking, urinating, defecating, within their inside dens, and “behavior not determined” when the identity or behavior of the individuals could not be determined; and 3) mobility of the animals within their exhibits. Also examined were: 4) preferences for different habitat types; 5) recommendations for future exhibit designs. Both species located themselves within their exhibits in a non-random manner. The majority of cats' time was spent in elevated locations (i.e., gunite ledges approximately 1-5.5 m above ground-level). Snow leopards exhibited this tendency to a greater extent than did the pumas. Both species also spent the majority of their time in the lying-down behavior; again snow leopards displayed this tendency significantly more than the pumas. Pumas were highly mobile and changed locations and behaviors in their exhibit significantly more than the snow leopards. No significant differences were noted between conspecifics in regard to habitat type preference, or mobility within the exhibit. Suggestions for future exhibit design include elevated locations for the cats to lay and look around within and outside their exhibits, caves for access to shade or relief from inclement weather, and ground surfaces to move about on. Features for exhibit design should take into consideration the natural habitat of the cat to occupy the exhibit.
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Kamelin, R. V. (1990). Gissar Nature Reserve. The reserves in Middle Asia and Kazakstan. Moscow.
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Zheengaziev A. (2002). Geographical locaton, wild life and relief of Sary-Chelek state biosphere nature reserve and Besh-Aral state nature reserve.
Abstract: The territorial description, floristic and faunistic characteristics of Sary-Chelek and Besh-Aral reserves and relief are given. There were registered about 40 species of mammals and 160 species of the birds in Sary-Chelek reserve. Ibex, roe deer, argali, wild boar, brown bear, snow leopard, lynx, porcupine, badger, marmot, hare etc. live here; muskrat, wood marten and American mink are acclimatized. Menzbier's marmot, fox, badger, wolf, brown bear, snow leopard, wild ibex and roe deer inhabited in Besh Aral reserve.
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Koshkarev E.P. (1990). Geographic prerequisites for snow leopard conservation in the USSR.
Abstract: Three key areas of the snow leopard habitat in the USSR are geographically segregated: Central Asia (Pamir, Tien Shan, Pamiro-Alai), East Kazakhstan (Jungar Alatau, Tarbagatai, Saur), and South Siberia (Altai, the Sayans), which are separated from one another. The fate of snow leopard in East Kazakhstan and South Siberia causes the most anxiety.
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Kolosov A.M. (1979). Genus Snow leopards Uncia.
Abstract: It provides description of appearance, distribution, behavioral patterns, and use of snow leopard in the USSR. The predator inhabits the mountains of Central Asia, east of the Amudarya river, along the ridges of Djungar Ala-Tau and Tarbagatai, South Altai, West and East Sayans. Its main food is ungulates, though it also preys on snow-cocks, marmots, small birds, and rodents. Sometimes attacks sheep. It has no enemy other than wolf; its diseases are not studied. Snow leopard is not dangerous for man. The fur-skin is used for making rugs and fur. Less than 1,000 animals are hunted globally. Before 1960, in the USSR less than 120 skins were annually purchased. Its total population is several thousand animals.
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Sludsky A.A. (1982). Genus Snow leopard Uncia Gray, 1854. Snow leopard Uncia uncia Schreber, 1775 (Vol. Vol. III, Part 2.).
Abstract: Snow leopard is rare and extinctive species that have scientific and aesthetic significance. The features of genus Uncia and species Uncia uncia are described. Also distribution, habitat, way of life, reproduction biology, behavioural patterns, migration routes, infections and parasites, enemies and competitors, number and number fluctuation, practical value of snow leopard in the Kazakhstan are given.
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Ishunin G.I. (1987). Genus Snow leopard Uncia gray, 1854.
Abstract: It provides data concerning biology, distribution and use game and commercial mammal species in Uzbekistan, and recommends on ways of hunting and initial fur-skin processing. It also describes the matter of conservation and rehabilitation of rare species' populations. From 1930-s to 1960-s over 20 snow leopard skins were reported to be traded officially.
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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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