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Jackson, R., Roe, J., Wangchuk, R., & Hunter, D. (2005). Surveying Snow Leopard Populations with Emphasis on Camera Trapping: A Handbook. Sonoma, California: The Snow Leopard Conservancy.
Abstract: This handbook provides an introduction to snow leopard population survey techniques, followed by a detailed account of camera trapping methods.During the 2002 through 2004 winter field seasons, the Snow Leopard Conservancy experimented with infrared camera trapping techniques to define a methodology suitable for the high altitude environment.
In 2001 and 2002, much of our time was spent familiarizing ourselves with various infrared camera traps, their operation and setup, and comparing the effectiveness of different models and sensor types. We placed infrared camera traps along frequently used travel corridors at or near scent-sprayed rocks (rock scents) and scrape sites within 16 km2 sampling cells between January and March in 2003 and 2004. A total of 66 and 49 captures of snow leopards were tallied during 2003 and 2004, resulting in an overall capture success of 8.91 and 5.63 individuals per 100 trap-nights, respectively. Capture probabilities ranged from 0.33 to 0.46. Density estimates ranged from 8.49 ± 0.22 individuals per 100 km2 in 2003 to 4.45 ± 0.16 in 2004, with the disparity between years largely attributed to different trapping densities. Snow leopard abundance estimates were calculated using the computer program CAPTURE.
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Meiers, S. T. (1992). Habitat use by captive puma (Felis concolor) and snow leopards (Pathera uncia) at the Lincoln Park Zoo, Chicago, Illinois. Ph.D. thesis, DePaul University, .
Abstract: Between May 1990 and January 1991, behavioral observations were made of two captive pumas (Felis concolor Linnaeus), and two captive snow leopards (Panthera uncia Schreber) in their outdoor exhibits at the Lincoln Park Zoological Gardens, Chicago, Illinois. Behaviors compared within and between species included: 1) time spend in the different habitat types; 2) time budgets for the different behaviors: laying, moving, sitting, standing, crouching, in the tree, drinking, urinating, defecating, within their inside dens, and “behavior not determined” when the identity or behavior of the individuals could not be determined; and 3) mobility of the animals within their exhibits. Also examined were: 4) preferences for different habitat types; 5) recommendations for future exhibit designs. Both species located themselves within their exhibits in a non-random manner. The majority of cats' time was spent in elevated locations (i.e., gunite ledges approximately 1-5.5 m above ground-level). Snow leopards exhibited this tendency to a greater extent than did the pumas. Both species also spent the majority of their time in the lying-down behavior; again snow leopards displayed this tendency significantly more than the pumas. Pumas were highly mobile and changed locations and behaviors in their exhibit significantly more than the snow leopards. No significant differences were noted between conspecifics in regard to habitat type preference, or mobility within the exhibit. Suggestions for future exhibit design include elevated locations for the cats to lay and look around within and outside their exhibits, caves for access to shade or relief from inclement weather, and ground surfaces to move about on. Features for exhibit design should take into consideration the natural habitat of the cat to occupy the exhibit.
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Begg, T. (1978). Nutritional bone disease in the snow leopard. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards, Vol. 1 (Vol. 1, pp. 104–107). Helsinki: Helsinki Zoo.
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Blomqvist, L. (1978). Photos of snow leopards. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards, Vol. 1 (Vol. 1, pp. 141–151). Helsinki: Helsinki Zoo.
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Blomqvist, L. (1978). Resolution from the first international snow leopard conference in Helsinki on March 7-8, 1978. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards, Vol. 1 (Vol. 1, pp. 3–5). Helsinki: Helsinki Zoo.
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Blomqvist, L. (1980). The snow leopard register. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards (Vol. 2, pp. 218–238). Helsinki: Helsinki Zoo.
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Blomqvist, L., & Rieger, I. (1980). Snow leopard references. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards (Vol. 2, pp. 258–262). Helsinki: Helsinki Zoo.
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Blomqvist, L. (1980). Photos of snow leopards. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards (Vol. 2, pp. 239–257). Helsinki: Helsinki Zoo.
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Blomqvist, L. (1982). The 3. Snow Leopard Register. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards (Vol. 3, pp. 145–164). Helsinki: Helsinki Zoo.
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Blomqvist, L. (1998). The snow leopard EEP in 1996. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards (Vol. 7, pp. 26–29). Helsinki: Helsinki Zoo.
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Blomqvist, L. (2008). The status of the snow leopard in the EEP – program in 2007. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards (Vol. 9, pp. 20–24). Helsinki: Helsinki Zoo.
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Freeman, H. (1974). A preliminary study of the behaviour of captive snow leopards (Panthera uncia). In International Zoo Yearbook (Vol. 15, pp. 217–222).
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Freeman, H. (1980). The snow leopard, today and yesterday. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards, Vol. 2 (Vol. 2, pp. 37–43). Helsinki: Helsinki Zoo.
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Freeman, H. (1980). Snow leopard: a cooperative study between zoos. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards (Vol. 2, pp. 127–136). Helsinki: Helsinki Zoo.
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Guggisberg, C. A. W. (1975). Snow Leopard, Ounce.. New York: Taplinger Publication Co. Inc.
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Marma, B. B., & Yunchis, V. V. (1968). Observations on the breeding, management and physiology of Snow leopards (Panthera u. uncia) at Kaunas Zoo from 1962 to 1967. In C. Jarvis, & R. Biegler (Eds.), Canids and Felids in Captivity (pp. 66–73). Zoological Society of London.
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Myroniuk, P. (1998). Snow leopards down under. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards (Vol. 7, p. 25). Helsinki: Helsinki Zoo.
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Nishine, Y. (1998). The captive snow leopard programme (SSCJ) in Japan. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards (Vol. 7, pp. 21–25). Helsinki: Helsinki Zoo.
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Peters, G. (1980). The vocal repertoire of the snow leopard (Uncia uncia, Schreber 1775). In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards (Vol. 2, pp. 137–158). Helsinki: Helsinki Zoo.
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Rieger, I. (1980). Some aspects of the history of ounce knowledge. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards, Vol. 2 (Vol. 2, pp. 1–36). Helsinki: Helsinki Zoo.
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Rieger, I. (1982). Breeding ounces, Uncia uncia (Schreber, 1775) in zoological gardens. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards, Vol. 3 (Vol. 3, pp. 49–50). Helsinki: Helsinki Zoo.
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Ruedi, D., Heldstab, A., Wiesner, H., & Keller, P. (1978). Liver cirrhosis in the snow leopard (Uncia uncia): Case histories of three animals and suggestion of some diagnostic possibilities. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards, Vol. 1 (Vol. 1, pp. 113–129). Helsinki: Helsinki Zoo.
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Ruedi, D., Heldstab, A., & van den Ingh, T. S. G. A. M. (1980). Liver cirrhosis in snow leopards – further results. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards (Vol. 2, pp. 195–204). Helsinki: Helsinki Zoo.
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Schacter, A., Fitzgerald, K., & Doherty, J. (1980). Development of a snow leopard with and away from mother and siblings in the first six months. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards (Vol. 2, pp. 112–126). Helsinki: Helsinki Zoo.
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Velte, F. (1982). Snow leopards at the Seneca Zoological Park, Rochester. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards, Vol. 3 (Vol. 3, pp. 55–58). Helsinki: Helsinki Zoo.
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