Graham, L. H., Goodrowe, K. L., Raeside, J. I., & Liptrap, R. M. (1995). Non-invasive monitoring of ovarian function in several felid species by measurement of fecal estradiol-17-beta and progestins. Zoo Biology, 14(3), 223–237.
Abstract: An extraction and assay procedure to measure fecal estradiol-17-beta and progestin concentrations in several cat species was developed and validated for use for noninvasive monitoring of ovarian function. Fecal samples were collected over a range of 3-20 months from female tigers (three), lions (three), snow leopards (three), cheetahs (two), caracals (two), and domestic cats (five). Samples were extracted with 90% methanol, lipids removed with petroleum ether, and the estradiol and progestins in the methanol measured by radioimmunoassay (RIA). High Performance Liquid Chromatography (HPLC) fractionation and subsequent RIA of the fractions indicated that the estradiol-17-beta antiserum cross-reacted primarily with estradiol-17-beta in the feces of lions and tigers and was assumed to be specific for estradiol-17-beta in the feces of other species as well. However, there were several immunoreactive compounds, presumably progesterone metabolites, excreted in the feces which varied both quantitatively and qualitatively among species. The behavior of tigers, lions, cheetahs, and caracals was visually monitored during the collection period and frequency of sexual behaviors was positively correlated with increases in fecal estradiol in all species observed. The mean fecal estradiol-17-beta peaks were as follows: tigers, 128.0 +- 13.1; lions, 186.0 +- 14.8; snow leopards, 136.7 +- 15.9; cheetahs, 140.9 +- 9.0; caracals, 24.5 +- 4.0; and domestic cats 158.9 +- 19.3 ng/gm. Fecal progestin concentrations rose significantly (P lt 0,001) only after breeding or during pregnancy and were as follows: tigers, 5.6 +- 0.6; lions, 1.9 +- 0.1; cheetahs, 8.4 +- 1.1; and caracals, 2.4 +- 0.4 mu-g/gm. Fecal progestins were elevated for one-half to two-thirds of the gestation length during presumed pseudopregnancy but remained elevated throughout successful pregnancies. These results suggest that ovarian function can be monitored noninvasively in the family Felidae by the measurement of fecal estradiol-17-beta and progestin concentrations.
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Grachev Yu.A. (1978). Snow leopard, or irbis Uncia uncia (Vol. Part 1. Vertebrate animals.).
Abstract: Snow leopard is rare and endangered species. At present it is met in Tien Shan and the spurs: in the ridges of Pskem, Ugam, Karjantau, Talas, Kyrgyz, Zailiyskiy, Ketmene, Kungei Alatau, Terskey Alatau, as well as Jungar Alatau, Tarbagatai, Saure, and Altai. In 19th century, snow leopard used to be met in the Karatau ridge (the Syrdarya ridge). Over the last two decades population of snow leopard reduced due to increased development of mountainous areas and reduction of wild animal populations (ibex, argali, morals, marmots, etc.). In Kazakhstan, snow leopard is protected in the Aksu-Djabagly and Alma-Ata nature reserves.
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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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Government of India. (1988). The snow leopard conservation scheme.
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Golub O.N. (1981). The Ramit nature reserve and its problems.
Abstract: The following Red Data Book species inhabit the Ramit nature reserve: snow leopard, bear, lynx, otter, Bukhara deer, etc. Its population is indicated to be closely related to number of ibex (150 animals). The latter is subject to heavy anthropogenic pressure when migrating outside the nature reserve in winter.
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Golub O.N. (1983). Perspective protection of rare mammal species in the nature reserves of Tajikistan.
Abstract: In winter, some seven to 14 snow leopards come into the nature reserve “Ramit” when chasing ibex within their winter habitats. The nature reserve is yet the only remaining place for ibexes to winter in eastern part of the Gissar ridge. Some 150 200 ibexes winter in the nature reserve. The nature reserve should be extended towards highlands in order to protect snow leopards.
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Ghoshal, A., Bhatnagar, Y. V., Pandav, B., Sharma, K., Mshra, C. (2017). Assessing changes in distribution of the Endangered snow leopard Panthera uncia and its wild prey over 2 decades in the Indian Himalaya through interviewbased occupancy surveys. Oryx, , 1–13.
Abstract: Understanding species distributions, patterns of
change and threats can form the basis for assessing the conservation
status of elusive species that are difficult to survey.
The snow leopard Panthera uncia is the top predator of the
Central and South Asian mountains. Knowledge of the distribution
and status of this elusive felid and its wild prey is
limited. Using recall-based key-informant interviews we estimated
site use by snow leopards and their primary wild
prey, blue sheep Pseudois nayaur and Asiatic ibex Capra
sibirica, across two time periods (past: �; recent:
�) in the state of Himachal Pradesh, India. We
also conducted a threat assessment for the recent period.
Probability of site use was similar across the two time periods
for snow leopards, blue sheep and ibex, whereas for wild
prey (blue sheep and ibex combined) overall there was an
% contraction. Although our surveys were conducted in
areas within the presumed distribution range of the snow
leopard, we found snow leopards were using only % of
the area (, km). Blue sheep and ibex had distinct distribution
ranges. Snow leopards and their wild prey were not
restricted to protected areas, which encompassed only %
of their distribution within the study area. Migratory livestock
grazing was pervasive across ibex distribution range
and was the most widespread and serious conservation
threat. Depredation by free-ranging dogs, and illegal hunting
and wildlife trade were the other severe threats. Our
results underscore the importance of community-based, landscape-
scale conservation approaches and caution against reliance
on geophysical and opinion-based distribution maps that have been used to estimate national and global snow leopard ranges.
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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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Geits, A. V., Makarov, O.A. (1977). About the distribution of the snow leopard in the Altai. In V. E. Sokolov (Ed.), Rare Types of Mammals and Their Conservation (pp. 115–116).
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Gaughan, M., & Doherty, J. (1982). Snow leopard rearing: Infant development with particular emphasis on play behaviour. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards, Vol. 3 (Vol. 3, pp. 121–126). Helsinki: Helsinki Zoo.
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