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Du, Z. (1994). Proceedings of International Symposium on the Karakorum and Kunlun Mountains.. Beijing: China Meteorological Press.
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Johnston, L. A., Armstrong, D. L., & Brown, J. L. (1994). Seasonal effects on seminal and endocrine traits in the captive snow leopard (Panthera uncia). J Reprod Fertil, 102(1), 229–236.
Abstract: The annual reproductive cycle of the male snow leopard (Panthera uncia) was characterized by evaluating seminal and endocrine traits monthly. Testicular volume was greatest (P < 0.05) during the winter months when the quality of ejaculate was optimal. Ejaculate volume, total sperm concentration ml-1, motile sperm concentration per ejaculate, sperm morphology and sperm motility index were lowest during the summer and autumn months compared with the winter and spring. Peripheral LH, FSH and testosterone concentrations were also lowest during the summer months, increasing during the autumn just before the increase in semen quality, and were maximal during the winter months. There was a direct relationship (P < 0.01) between: (1) testosterone and testicular volume, total sperm concentration ml-1, motile sperm concentration per ejaculate and ejaculate volume, and (2) LH and testicular volume and motile sperm concentration per ejaculate. In summary, although spermatozoa were recovered throughout the year, optimal gamete quality was observed during the winter and spring. Although previous studies in felids have demonstrated seasonal effects on either seminal or endocrine traits, this is the first study to demonstrate a distinct effect of season on both pituitary and testicular function.
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Cunha, S. F. (1994). Summits, snow leopards, farmers, and fighters: Will politics prevent a national park in the high Pamirs of Tajikistan? Focus; New York, 44(1), 17–22.
Abstract: Tajikistan is the smallest, poorest and one of the most culturally diverse of the former Soviet Republics. The physical and cultural geography of the Pamir Mountains in Tajikistan are described, and recent legislative action taken to create a proposed park and civil strife that may stop the park's creation are discussed.
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Kosharev, E. P. (1994). Snow Leopard and Turkestan Lynx Poaching in Central Asia. Cat News, Autumn(21).
Abstract: Of the many problems facing the republics of Central Asia and Kazakhstan after the break-up of the USSR, poaching of endandered animals is of particular concern. Everything is up for sale through the black market, networks of acquaintances, middlemen or even advertisements in the newspapers: horns, skins, mounted trophies, animal parts for traditional medicine. Interest in snow leopard and Turkestan lynx (Lynx lynx isabellinus Blyth), and skins and horns from mountain sheep and goats sharply increased in 1992-93, and prices grew unusually high.
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Brown, J. L., Wasser, S. K., Wildt, D. E., & Graham, L. H. (1994). Comparative Aspects of Steroid Hormone Metabolism and Ovarian Activity in Felids, Measured Noninvasively in Feces. Biol Reprod, 51(4), 776–786.
Abstract: Noninvasive fecal assays were used to study steroid metabolism and ovarian activity in several felid species. Using the domestic cat (Felis catus) as model, the excretory products of injected [14C]estradiol (E2) and [14C]progesterone (P4) were determined. Within 2 days, 97.0 +/- 0.6% and 96.7 +/- 0.5% of recovered E2 and P4 radioactivity, respectively, was found in feces. E2 was excreted as unconjugated estradiol and estrone (40%) and as a non-enzyme- hydrolyzable conjugate (60%). P4 was excreted primarily as non-enzyme- hydrolyzable, conjugated metabolites (78%) and as unconjugated pregnenolone epimers. A simple method for extracting fecal steroid metabolites optimized extraction efficiencies of the E2 and P4 excretion products (90.1 +/- 0.8% and 87.2 +/- 1.4%, respectively). Analysis of HPLC fractions of extracted fecal samples from the radiolabel-injected domestic cats revealed that E2 immunoreactivity coincided primarily with the unconjugated metabolized [14C]E2 peak, whereas progestogen immunoreactivity coincided with a single conjugated epimer and multiple unconjugated pregnenolone epimers. After HPLC separation, similar immunoreactive E2 and P4 metabolite profiles were observed in the leopard cat (F. bengalensis), cheetah (Acinonyx jubatus), clouded leopard (Neofelis nebulosa), and snow leopard (Panthera uncia). Longitudinal analyses demonstrated that changes in fecal E2 and P4 metabolite concentrations reflected natural or artificially induced ovarian activity. For example, severalfold increases in E2 excretion were associated with overt estrus or exogenous gonadotropin treatment, and elevated fecal P4 metabolite concentrations occurred during pregnant and nonpregnant (pseudopregnant) luteal phases. Although overall concentrations were similar, the duration of elevated fecal P4 metabolites during pseudopregnancy was approximately half that observed during pregnancy. In summary, steroid metabolism mechanisms appear to be conserved among these physically diverse, taxonomically related species. Results indicate that this hormone-monitoring approach will be extremely useful for elucidating the hormonal regulatory mechanism associated with the reproductive cycle, pregnancy, and parturition of intractable and endangered felid species.
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Brown, J. L., Wasser, S. K., Wildt, D. E., & Graham, L. H. (1994). Steroid Metabolism and the Effectiveness of Fecal Assays for Assessing Reproductive Status in Felids. Biology of Reproduction, 50(suppl 1), 185.
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Oli, M. (1994). Snow leopards and blue sheep in Nepal: Densities and predator: Prey ratio (Vol. 75).
Abstract: I studied snow leopards (Panthera uncia) and blue sheep (Pseudois nayaur) in Manang District, Annapurna Conservation Area, Nepal, to estimate numbers and analyze predatorprey interactions. Five to seven adult leopards used the 105-km2 study area, a density of 4.8 to 6.7 leopards/100 km2. Density of blue sheep was 6.6-10.2 sheep/km2, and biomass density was 304 kg/km2. Estimated relative biomass consumed by snow leopards suggested that blue sheep were the most important prey; marmots (Marmota himalayana) also contributed significantly to the diet of snow leopards. Snow leopards in Manang were estimated to harvest 9-20% of total biomass and 11-24% of total number of blue sheep annually. Snow leopard :blue sheep ratio was 1 :1 14-1 :159 on a weight basis, which was considered sustainable given the importance of small mammals in the leopard's diet and the absence of other competing predators.
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McCarthy, T. (1994). Update: Mongolia. Snow Line, Xii(1), 3–4.
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Miller, D. J., & Jackson, R. (1994). Livestock and Snow Leopards:making room for competing users on the Tibetian Plateau. In J.L.Fox, & D.Jizeng (Eds.), (pp. 315–328). Usa: Islt.
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Oli, M. K. (1994). Snow leopards and local human population in a protected area: a case study from the Nepalese Himalaya. In J.L.Fox, & D.Jizeng (Eds.), (pp. 51–64). Usa: International Snow Leopard Trust, Seattle, Washington.
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