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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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Schmidt, A. M., Hess, D. L., Schmidt, M. J., Smith, R. C., & Lewis, C. R. (1988). Serum concentrations of oestradiol and progesterone, and sexual behaviour during the normal oestrous cycle in the leopard (Panthera pardus) (Vol. 82).
Abstract: Three mature nulliparous female leopards were studied for 5 years. During three separate 6-month periods serum oestradiol and progesterone concentrations were measured at weekly intervals. Oestradiol was elevated over 21 pg/ml for 54 weeks during these 3 periods, and 36 oestradiol peaks (65\m=.\8\m=+-\6\m=.\3pg/ml (mean \m=+-\s.e.m.), range 21\p=n-\172pg/ml) were identified. Daily frequency of feline reproductive behaviours averaged over each week increased from 1\m=.\9\m=+-\0\m=.\2(n = 93) during weeks with low serum oestradiol concentrations (<21 pg/ml) to 5\m=.\3\m=+-\0\m=.\6(n = 54) during weeks when serum oestradiol concentrations (>21 pg/ml) were high. Increased serum progesterone concentrations (13\p=n-\98n/gml) were observed on 5 occasions in 2 leopards housed together. These presumptive luteal phases lasted from 1 to 5 weeks. Baseline progesterone values were 1\m=.\6\m=+-\0\m=.\4 ng/m(nl= 131). No progesterone increments were observed in isolated animals, and serum concentrations remained at baseline levels. These limited observations suggest that female leopards do not require intromission to induce ovulation and luteal function. The average interval between oestradiol peaks for cycles with no progesterone increment was 3\m=.\4weeks (range 1\p=n-\6weeks). The interval for the 3 complete cycles associated with elevated progesterone concentrations was 7\m=.\3weeks. Analysis of sexual behaviours over the 5-year study period revealed no evidence of seasonality in these
captive leopards.
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Aizin B.M. (1969). Siberian ibex Capra sibirica Pall.
Abstract: It describes status of ibex in Kyrgyzstan, its distribution, behavioral patterns, enemies and competitors, etc. The enemies of ibex are snow leopard and wolf. All year round snow leopard preys on ibex its main food object and, therefore, should there be ibexes, snow leopards would be somewhere around. In winter, a considerable number of ibex dies from wolves. Sometimes dogs prey on ibex, too. Golden eagles and bearded vultures prey on young ibexes. However, poachers remain the most dangerous enemy.
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Razmakhnin V.E. (1977). Siberian wild ibex.
Abstract: It provides a detailed description of biology, distribution, geographic variability, behavior, and locomotion features of ibex in the USSR. Its population was defined as 100,000 animals, main enemies being wolf, snow leopard, and golden eagle. Wolf mainly preys on ibex at the end of winter; old males, weakened during the heat mostly becoming a prey. Snow leopards prey on ibexes all year round. Golden eagles mostly prey on young ibexes.
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Sharma, R., Dutta, T. (2005). Sighting of Lynx (Lynx lynx isabellinus) in Hemis National Park, Ladakh. Zoos's Print, XX(4), 14.
Abstract: We had a good sighting of two adult and one sub adult lynx together, near Ganda-la
base which is at an elevation of 4900 meter, in Hemis National Park, Ladakh, during our fieldwork on Snow leopards in February 2004.The two adults lynx were moving closer and following each other, while the sub-adult lynx was a little far from the adults.
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Jackson, R., Hunter, D., & Emmerich, C. (1997). SLIMS: An Information Management System for Promoting the Conservation of Snow Leopards and Biodiversity in the Mountains of Central Asia. In R.Jackson, & A.Ahmad (Eds.), (pp. 75–91). Lahore, Pakistan: Islt.
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Abdunazarov B.B. (2003). Snow Leopard.
Abstract: Snow leopard (Uncia uncia) listed in Red Data Book of Republic of Uzbekistan (2003) and Appendix II CITES.
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Aizin B.M. (1985). Snow leopard.
Abstract: Snow leopard is a rare and endangered species, distributed in all mountain ridges of Kyrgyzstan. Its population is 1,400 animals, density being 0.2 0.5 animal per 1,000 ha. Its population was noticed to decrease in some ridges because of decreasing populations of mountain ungulates. 200 snow leopards were caught for the purpose of zoo-export over the last 20 years. This species is protected in the nature reserves Sary Chelek, Besh Aral, and natural park Ala Archa.
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Grachev Yu.A. (1996). Snow leopard (Vol. Vol.1.Animals. Part 1.Vertebrates.).
Abstract: Status: rare (Category III). Distribution: Tien Shan mountains, Tarbagatai, Saur and Altai mountains. Total number in Kazakhstan does not exceed 200 individuals. The main threats are poaching and reduction number of preys. In Almaty Zoo captive breeding was successful in 1976 and 1985. Snow leopard is protected in Aksu Jabagly, Almaty and Markakol nature reserves. To ensure the survival of the species it is necessary to establish a reserve in Dzhungar mountains and to improve protection in existing nature reserves.
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Ishunin G.I. (1980). Snow leopard.
Abstract: In Uzbekistan, snow leopard is preserved along the Ugam, Pskem, Chatkal, Tirkestan, and Hissar ridges. Ibex is a main prey of the predator. It also preys on argali, wild boar, hares, roe-deers, rodents, kekliks (partridge), and rarely livestock. Catching the animals in the country is limited and exercised under special permissions.
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