Flerov K.K. (1935). Capra sibirica, Uncia uncia uncia Erxleben.
Abstract: It describes identification signs of ibex and snow leopard; provides data concerning taxonomy, distribution and behavioral patterns of the both species. Snow leopard inhibits the mountains of Central Asia, Tarbagatai, Altai, Sayans and southward to the Humalayas. In Tajikistan snow leopard is distributed in Pamir, and probably, along alpine strip of the ridges in northern Tajikistan. The sub-species status is not defined. It is known that the same type inhabits the area from the Sayans to Himalayas. Only in Tibet and highlands of Sychuan and Gansu lives a well-marked sub-species Uncia uncia uncioides Hodgson.
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Aramov, B. (1997). The Biology of the Snow Leopard in the Gissarsky Nature Reserve. In R. and A. A. Jackson (Ed.), (pp. 108–109). Lahore, Pakistan: Islt.
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O'Connor, T., & Freeman, H. (1982). Maternal behavior and behavioral development in the captive snow leopard (Panthera uncia). In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards, Vol. 3 (Vol. 3, pp. 103–110). Helsinki: Helsinki Zoo.
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Koshkarev E.P. (1989). Snow leopard in Kyrgyzstan. The structure of habitat, ecology, protection.
Abstract: Habitat, status of population, geographical distribution, number, and ecology of snow leopard in Tien Shan are analyzed based on original realistic material collected 1981 through 1988.Information about irbis in the `foreign' part of its habitat is given for comparison. The reasons for snow leopard habitat shrinkage in Central Asia and Kazakhstan for over 100 years are assessed. Status of ungulate populations snow leopard prey on is given. The predator's behavioral pattern and condition in enclosure are given consideration. Protection measures are proposed.
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Schmidt, A. M., Hess, D. L., Schmidt, M. J., & Lewis, C. R. (1993). Serum concentrations of oestradiol and progesterone and frequency of sexual behaviour during the normal oestrous cycle in the snow leopard (Panthera uncia). J Reprod Fertil, 98(1), 91–95.
Abstract: Serum oestradiol and progesterone concentrations were measured at weekly intervals for six months, and correlated with daily behavioural observations in two adult female snow leopards (Panthera uncia). Three oestradiol peaks (> 21 pg ml-1; interval 3.6 weeks) were identified in a snow leopardess housed alone (two more were probably missed because of the weekly sampling schedule), and three oestradiol peaks were identified in a snow leopardess housed with a male as a breeding pair (interval 6 weeks). Daily frequencies of feline reproductive behaviour averaged 1.77 observations per observation period during weeks of high oestradiol and 0.62 during weeks of low oestradiol. Progesterone concentrations did not rise above baseline values (< 2 ng ml-1) in the isolated animal, but 6 weeks of high progesterone concentrations (4.9- 38.8 ng ml-1) was recorded in the paired snow leopardess following mating. No offspring were produced. Snow leopards were observed daily for an additional 4.5 years. Sexual behaviour peaks could be clearly identified from December through April, and average daily sexual behaviour scores were higher during these months than during the rest of the year. Intervals between sexual behaviour peaks for the isolated snow leopardess averaged 3.03 weeks. The sexual behaviour of the paired snow leopards decreased for 8-9 weeks following mating when no offspring were produced, and decreased for 13 weeks in one year when a single cub was born.
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Mallon, D. P. (1988). A Further Report on The Snow Leopard in Ladakh. In H.Freeman (Ed.), (pp. 89–97). India: Snow Leopard Trust and Wildlife Institute of India.
Abstract: A detailed knowledge of the ecology of a species is fundemental to the drawing up of effective conservation measures. One aim of the current project was to identify good areas of snow leopard habitatand evaluate them for possible inclusion in the Protected Area Network. Several good areas were surveyed and an outstanding area identified, and included in a report to the Chief Wildlife Warden.
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Chundawat, R. S. (1990). Habitat Selection by a Snow Leopard in Hemis National Park, India. In L.Blomqvist (Ed.), (pp. 85–92). Helsinki, Findland: Leif Blomqvist and Helesinki Zoo.
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Rieger, I. (1978). Scent marking behaviour of ounces, Uncia uncia. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards, Vol. 1 (Vol. 1, pp. 78–103). Helsinki: Helsinki Zoo.
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Bogdanov O.P. (1992). Snow leopard or irbis Uncia Uncia.
Abstract: Snow leopard and its habitat within the USSR and Uzbek SSR are described. Its habitat in the Chatkal and Hissar ridges are described too. Given are data concerning alimentary biology, reproduction, and attitude to man. Female snow leopards become mature at the age of two three years, male at the age of four years. Reproduction occurs once every two years. Presumably, there are 10 animals in the country. Snow leopard is protected in four nature reserves in Uzbekistan and a number of nature reserves in neighbour countries.
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Rieger, I. (1980). Some difficulty breeding ounces, (Uncia uncia) at zoological gardens. Int.Ped Book of Snow Leopards, 2, 76–95.
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