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Durbach, I., Borchers, D., Sutherland, C., Sharma, K. (2020). Fast, flexible alternatives to regular grid designs for spatial
capture–recapture..
Abstract: Spatial capture–recapture (SCR) methods use the location of
detectors (camera traps, hair snares and live-capture traps) and the
locations at which animals were detected (their spatial capture
histories) to estimate animal density. Despite the often large expense
and effort involved in placing detectors in a landscape, there has been
relatively little work on how detectors should be located. A natural
criterion is to place traps so as to maximize the precision of density
estimators, but the lack of a closed-form expression for precision has
made optimizing this criterion computationally demanding. 2. Recent
results by Efford and Boulanger (2019) show that precision can be well
approximated by a function of the expected number of detected
individuals and expected number of recapture events, both of which can
be evaluated at low computational cost. We use these results to develop
a method for obtaining survey designs that optimize this approximate
precision for SCR studies using count or binary proximity detectors, or
multi-catch traps. 3. We show how the basic design protocol can be
extended to incorporate spatially varying distributions of activity
centres and animal detectability. We illustrate our approach by
simulating from a camera trap study of snow leopards in Mongolia and
comparing estimates from our designs to those generated by regular or
optimized grid designs. Optimizing detector placement increased the
number of detected individuals and recaptures, but this did not always
lead to more precise density estimators due to less precise estimation
of the effective sampling area. In most cases, the precision of density
estimators was comparable to that obtained with grid designs, with
improvement in some scenarios where approximate CV(¬D) < 20% and density
varied spatially. 4. Designs generated using our approach are
transparent and statistically grounded. They can be produced for survey
regions of any shape, adapt to known information about animal density
and detectability, and are potentially easier and less costly to
implement. We recommend their use as good, flexible candidate designs
for SCR surveys when reasonable knowledge of model parameters exists. We
provide software for researchers to construct their own designs, in the
form of updates to design functions in the r package oSCR.
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Wikramanayake, E., Moktan, V., Aziz, T., Khaling, S., Khan, A., & Tshering, D. (2006). The WWF Snow Leopard Action Strategy for the Himalayan Region.
Abstract: As a 'flagship' and 'umbrella' species the snow leopard can be a unifying biological feature to
raise awareness of its plight and the need for conservation, which will benefit other facets of Himalayan
biodiversity as well. Some studies of snow leopards have been conducted in the Himalayan region. But,
because of its elusive nature and preference for remote and inaccessible habitat, knowledge of the
ecology and behaviour of this mystical montane predator is scant. The available information, however,
suggests that snow leopards occur at low densities and large areas of habitat are required to conserve
a viable population. Thus, many researchers and conservationists have advocated landscape-scale
approaches to conservation within a regional context, rather than focusing on individual protected areas.
While the issues are regional, the WWF's in the region have developed 5-year strategic actions and
activities, using the regional strategies as a touchstone, which will be implemented at national levels.
The WWF's will develop proposals based on these strategic actions, with estimated budgets, for use by
the network for funding and fund-raising. WWF also recognizes the need to collaborate and coordinate
within the network and with other organizations in the region to achieve conservation goals in an
efficient manner, and will form a working group to coordinate activities and monitor progress.
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Vashetko, E., Esipov A., Bykova, E., & Kreuzberg, E. (2005). Snow Leopard Bibliography. Central Asia (Abstracts).
Abstract: Bibliography of the Snow Leopard included publications on the studying various questions of ecology and conservation of the Snow Leopard in Central Asia (305) for the period 1873 to 2004. The most important works on this species in the region, as well as results of the analysis of timing of publications was described.
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Schaller, G. B. (1977). Mountain Monarchs: Wild Sheep and Goats of the Himalaya (Wildlife Behavior & Ecology). Chicago: University of Chicago Press.
Abstract: Describes snow leopard status and field observations from studies in Pakistan and Nepal. Review provides some data on snow leopard marking behavior, social relations, food habits and predator behavior.
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Roberts, T. J. (1977). The Mammals of Pakistan. London and Tonbridge: Ernest Benn.
Abstract: Brief description of physical characteristics, ecology,status, and distribution of snow leopard in Pakistan
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Raj, R. D. (1999). A Green Chief Minister in a Green State.
Abstract: As chief minister of the Indian state of Sikkim, Pawan Kumar Chamling has the onerous job of protecting one of the hottest biodiversity properties in the world. Chamling has been more than equal to the task. Last month, he earned the title of “greenest chief minister” of India's 22 federal states for policies that range from banning plastic bags to cancelling a major hydro-electric project.
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Pokrovski, V. S. (1976). The Snow Leopard Large Predators. Moscow.
Abstract: Detailed review of snow leopard distribution and abundance, behavior, ecology,captive population and conservation measures in the Soviet Union. Estimates a snow leopard population of 300 +/- 150.
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Oli, M. K. (1991). Ecology and conservation of snow leopard project (Vol. 6628).
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Oli, M. K. (1991). The ecology and conservation of the snow leopard (Panthera uncia) in the Annapurna Conservation Area, Nepal. Ph.D. thesis, University of Edinburgh, Scotland., .
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Dyikanova, C. (2004). A public awareness outreach programme on Snow Leopards for the Kyrgyz Republic, Final Report.
Abstract: The principle goal of the project was to raise awareness of local people, staff of frontier posts,
customs and foreign military base on snow leopard, and its conservation. In the framework of the
project the following steps were to be executed:
A) To disseminate printing materials: a booklet, poster, card and calendar.
b) To publish articles on snow leopard ecology and conservation issues and threats in
Kyrgyzstan regional newspapers (Issyk-Kul, Osh, and Chui areas)
C) To hold follow-up meeting with target groups
D) To evaluate project results
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