Blomqvist, L., & Sten, I. (1982). Reproductive biology of the snow leopard, Panthera uncia. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards (pp. 71–79). Helsinki: Helsinki Zoo.
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Blomqvist, L. (1989). Status of the captive snow leopard (Panthera uncia) in 1987.
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Blomqvist, L. (1993). The snow leopard, Panthera uncia, in captivity during the last 30 years (1961-1991). Helsinki: Helsinki Zoo.
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Blomqvist, L., & Dexel, B. (2006). In Focus: Declining numbers of wild snow leopards.
Abstract: International collaboration to ensure the long-term survival of snow leopards (Uncia uncia) in the wild is today more acutely needed than ever! Trade in live snow leopards, their skins and bones, has during the last decade reached such extensiveness that the species is in danger of being wiped out from many of its former habitats. All recent surveys support declining populations throughout most of their range.
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Blomqvist, L. (2008). International Pedigree Book for Snow Leopards, Uncia uncia. Helsinki: Helsinki Zoo.
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Chakraborty, R. E., & Chakraborty, S. (1996). Identification of dorsal guard hairs of Indian species of the genus Panthera Oken (Carnivora: Felidae). Mammalia, 60(3), 480.
Abstract: Dorsal guard hairs of four living Indian species of the genus Panthera, viz. P. tigris, P. leo, P. pardus and P. uncia have been studied. It is found that the characters are somewhat overlapping, but identification of the species may be possible from the combination of characters.
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Chapron, G., & Legendre, S. (2002). Some Insights Into Snow Leopard (Uncia Uncia) Demography By Using Stage Structured Population Models.. Seattle: Islt.
Abstract: Based on the limited data available on snow leopard demography, we developed deterministic and stochastic stage-structured demographic models to study the population dynamics of this large cat. Our results reveal that even small leopard populations can persist provided their demographic parameters remain high, but less favorable scenarios would require larger population sizes. Population growth rate is more sensitive to breeder survivals than to any other parameters. A snow leopard population would start declining if yearly mortality claims more than 1/5 of the population. This study identifies poaching as a major threat to snow leopard survival and stresses the importance of long-term studies to better understand snow leopard population dynamics.
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Emanoil, M. (1994). Snow leopard: Uncia (panthers) uncia. In M. Emanoil (Ed.), Encyclopedia of Endangered Species (pp. 205–206). IUCN, Gale Research Inc.
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Espinosa-Aviles, D., Taylor, M. L., Del Rocio Reyes-Montes, M., & Pe'rez-Torrez, A. (2008). Molecular findings of disseminated histoplasmosis in two captive snow leopards (Uncia uncia) (Vol. 39).
Abstract: This paper reports two cases of disseminated histoplasmosis in captive snow leopards (Uncia uncia). Histoplasmosis was diagnosed based on histopathology, immunohistochemistry, transmission electron microscopy, and molecular findings.
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Fix, A. S., Riordan, D. P., Hill, H. T., Gill, M. A., & Evans, M. B. (1989). Feline panleukopena virus and subsequent canine-distemper virus infection in two snow leopards (Panthera uncia). Journal of Zoo and Wildlife Medicine, 20(3), 273–281.
Abstract: Two adult snow leopards (Panthera uncia), male and female, both with vaccinations current, became infected with feline panleukopenia virus (FPV) at the Blank Park Zoo, Des Moines, Iowa, in late 1988. Clinical signs included weakness, hemorrhagic feces, fever, seizures, and nasal discharge. Blood analysis revealed severe lymphopenia and mild anemia. A positive enzyme-linked immunosorbent assay (ELISA) test for FPV on fecal contents from the male leopard confirmed the diagnosis. In spite of intensive therapy, both animals died. Necropsy of the female, which survived for 1 wk after onset of signs, revealed intestinal crypt necrosis, pulmonary consolidation, necrotizing laryngitis, and diffuse lymphoid depletion. The male leopard, which lived 3 wk after onset of illness, had similar enteric and lymphoid lesions. In addition, there was a severe interstitial pneumonia, with syncytial cells containing eosinophilic intracytoplasmic inclusion bodies. Ultrastructural characteristics of these inclusions featured tubular structures consistent with a paramyxovirus. Although repeated virus isolation attempts from the affected lung were negative, polyclonal and monoclonal fluorescent antibody tests were strongly positive for canine distemper virus (CDV). Frozen paired sera from each leopard demonstrated very high acute and convalescing titers to FPV; both animals also seroconverted to CDV, with titers in the male leopard higher than those in the female. Additional tests for toxoplasmosis, feline infectious peritonitis, feline rhinotracheitis, feline calicivirus, feline leukemia, canine parainfluenza, and bovine respiratory syncytial virus were all negative. The neurologic signs present in these leopards remained unexplained, but may have been attributable to CDV infection. A feral cat trapped on zoo property had feces positive for FPV by ELISA. Although the specific contributions of FPV and CDV toward the development of this case are unknown, it is likely that initial FPV-induced immunosuppression allowed the subsequent development of CDV in these snow leopards. The likelihood that initial FPV infection came from feral cats underscores the importance of feral animal control on zoo premises.
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