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Author Durbach, I., Borchers, D., Sutherland, C., Sharma, K. url 
  Title Fast, flexible alternatives to regular grid designs for spatial capture–recapture. Type Research Article
  Year 2020 Publication Methods in Ecology and Evolution Abbreviated Journal  
  Volume Issue Pages 1-13  
  Keywords camera trap, population ecology,sampling, spatial capture-recapture, surveys  
  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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  Call Number Serial (down) 1618  
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Author Augugliaro, C., Paniccia, C., Janchivlamdan, C., Monti, I. E., Boldbaatar, T., Munkhtsog, B. url 
  Title Mammal inventory in the Mongolian Gobi, with the southeasternmost documented record of the Snow Leopard, Panthera uncia (Schreber, 1775), in the country Type Journal Article
  Year 2019 Publication Check List Abbreviated Journal  
  Volume 15 Issue 4 Pages 575-578  
  Keywords Camera trapping, desert, live trapping, mammal checklist, species richness, threatened species.  
  Abstract Studies on mammal diversity and distribution are an important source to develop conservation and management strategies.

The area located in southern Mongolia, encompassing the Alashan Plateau Semi-Desert and the Eastern Gobi Desert-Steppe ecoregions, is considered strategic for the conservation of threatened species. We surveyed the non-volant mammals in the Small Gobi-A Strictly Protected Area (SPA) and its surroundings, by using camera trapping, live trapping, and occasional sightings. We recorded 18 mammal species belonging to 9 families and 6 orders. Among them, 4 are globally threatened or near-threatened, 2 are included in the CITES Appendix I, and 2 are listed in the Appendix II. Moreover, we provide the southeasternmost record for the Snow Leopard (Panthera uncia) in Mongolia, supported by photographic evidence. Our study highlights the importance of this protected area to preserve rare, threatened, and elusive species.
 
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  Notes Approved no  
  Call Number SLN @ rakhee @ Serial (down) 1486  
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Author Suryawanshi, K. R., Khanyari, M., Sharma, K., Lkhagvajav, P., Mishra, C. url 
  Title Sampling bias in snow leopard population estimation studies Type Journal Article
  Year 2019 Publication Population Eccology Abbreviated Journal  
  Volume Issue Pages 1-9  
  Keywords camera trap, Central Asia, Himalaya, meta-analysis, monitoring, Panthera uncia, population ecology  
  Abstract Accurate assessments of the status of threatened species and their conservation

planning require reliable estimation of their global populations and robust monitoring

of local population trends. We assessed the adequacy and suitability of studies

in reliably estimating the global snow leopard (Panthera uncia) population. We

compiled a dataset of all the peer-reviewed published literature on snow leopard

population estimation. Metadata analysis showed estimates of snow leopard density

to be a negative exponential function of area, suggesting that study areas have generally

been too small for accurate density estimation, and sampling has often been

biased towards the best habitats. Published studies are restricted to six of the

12 range countries, covering only 0.3&#65533;0.9% of the presumed global range of the

species. Re-sampling of camera trap data from a relatively large study site

(c.1684 km2) showed that small-sized study areas together with a bias towards

good quality habitats in existing studies may have overestimated densities by up to

five times. We conclude that current information is biased and inadequate for generating

a reliable global population estimate of snow leopards. To develop a rigorous

and useful baseline and to avoid pitfalls, there is an urgent need for

(a) refinement of sampling and analytical protocols for population estimation of

snow leopards (b) agreement and coordinated use of standardized sampling protocols

amongst researchers and governments across the range, and (c) sampling

larger and under-represented areas of the snow leopard's global range.
 
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  Notes Approved no  
  Call Number SLN @ rakhee @ Serial (down) 1477  
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Author Lama, R. P., Ghale, T. R., Suwal, M. K., Ranabhat, R., Regmi, G. R. url 
  Title First photographic evidence of Snow Leopard Panthera uncia (Mammalia: Carnivora: Felidae) outside current protected areas network in Nepal Himalaya Type Journal Article
  Year 2018 Publication Journal of Threatened Taxa Abbreviated Journal  
  Volume Issue Pages 12086-12090  
  Keywords Camera-trapping, conservation, Humla, livestock depredation, monasteries, non-timber forest products, retaliatory killing, Tibetan Buddhism.  
  Abstract The Snow Leopard Panthera uncia is a rare top predator of high-altitude ecosystems and insufficiently surveyed outside of protected areas in Nepal. We conducted a rapid camera-trapping survey to assess the presence of Snow Leopard in the Limi valley of Humla District. Three individuals were recorded in two camera locations offering the first photographic evidence of this elusive cat outside the protected area network of Nepal. In addition to Snow Leopard, the Blue Sheep Pseudois nayaur, Beech Marten Martes foina, Pika Ochotona spp. and different species of birds were also detected by camera-traps. More extensive surveys and monitoring are needed for reliably estimating the population size of Snow Leopard in the area. The most urgent needs are community-based conservation activities aimed at mitigating immediate threats of poaching, retaliatory killing, and rapid prey depletion to ensure the survival of this top predator in the Himalaya.  
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  Notes Approved no  
  Call Number SLN @ rakhee @ Serial (down) 1470  
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Author Rovero, F., Augugliaro, C., Havmoller, R. W., Groff, C., Zimmerman, F., Oberosler, V., Tenan, S. url  doi
  Title Co-occurrence of snow leopard Panthera uncia, Siberian ibex Capra sibirica and livestock: potential relationships and effects Type Journal Article
  Year 2018 Publication Oryx Abbreviated Journal  
  Volume Issue Pages 1-7  
  Keywords Altai mountains, camera trapping, human&#65533; wildlife conflict, Mongolia, occupancy, occurrence interactions, Siberian ibex, snow leopard  
  Abstract Understanding the impact of livestock on native

wildlife is of increasing conservation relevance. For the

Vulnerable snow leopard Panthera uncia, wild prey reduction,

intensifying human&#65533;wildlife conflicts and retaliatory

killings are severe threats potentially exacerbated by the

presence of livestock. Elucidating patterns of co-occurrence

of snow leopards, wild ungulate prey, and livestock, can be

used to assess the compatibility of pastoralism with conservation.

We used camera trapping to study the interactions of

livestock, Siberian ibex Capra sibirica and snow leopards in

a national park in the Altai mountains, Mongolia. We obtained

&#63284;&#63289;&#63284; detections of wild mammals and &#63289;&#63281;&#63282; of domestic

ungulates, dogs and humans. Snow leopards and Siberian

ibex were recorded &#63281;&#63284; and &#63283;&#63283; times, respectively. Co-occurrence

modelling showed that livestock had a higher estimated

occupancy (&#63280;.&#63286;&#63285;) than ibex, whose occupancy was

lower in the presence of livestock (&#63280;.&#63281;&#63281;) than in its absence

(&#63280;.&#63283;&#63284;&#65533;&#63280;.&#63283;&#63285; depending on scenarios modelled). Snow leopard

occupancy did not appear to be affected by the presence of

livestock or ibex but the robustness of such inference was

limited by uncertainty around the estimates. Although our

sampling at presumed snow leopard passing sites may have

led to fewer ibex detections, results indicate that livestock

may displace wild ungulates, but may not directly affect

the occurrence of snow leopards. Snow leopards could still

be threatened by livestock, as overstocking can trigger

human&#65533;carnivore conflicts and hamper the conservation

of large carnivores. Further research is needed to assess

the generality and strength of our results.
 
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  Call Number SLN @ rakhee @ Serial (down) 1465  
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Author Sivolobov, R. url 
  Title ENDANGERED SPECIES OF KORYAKIA AND CHUKOTKA: IRBIS, TIGER AND THE IRKUYEM-BEAR Type Journal Article
  Year 2017 Publication Abbreviated Journal  
  Volume Issue Pages 225-233  
  Keywords endangered species, Beringian snow cat, Snow leopard, Irbis, Amur tiger, Irkuyem-bear, camera-trap, Koryakia, Chukotka  
  Abstract After 30 years of searching for the mysterious Beringian snow cat in vast space of Koryakia and Chukotka

one of the five cameras recorded finally this beast at night in September 2014. This is not so much a

sensation as a real scientific discovery, saying that the hearts of the snow leopard population resettlement are

not in 5000 km from the main range boundaries, but much closer. Where? &#65533; will show further studies.

In addition to the snow leopard in the North-Eastern Asia, it found two more endangered large

mammal species: the Amur tiger and the relict of the Ice Age &#65533; the Irkuyem-bear. Author has given these

animals his life and his article devoted to this topic.
 
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  Notes Approved no  
  Call Number SLN @ rakhee @ Serial (down) 1456  
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Author Kashkarov, E. url 
  Title THE SNOW LEOPARD OF KIRGIZIA: NATIONAL SHAME OR NATIONAL PRIDE Type Journal Article
  Year 2017 Publication Abbreviated Journal  
  Volume Issue Pages 239-253  
  Keywords snow leopard, irbis, ibex, mountain sheep, conservation, range, reserve, monitoring, cameratrap, Sarychat, Kirgizia, Central Asia.  
  Abstract Article examines the problems existing in conservation of the snow leopard in Kirgizia after break-up of the

USSR. Unfortunate situation is common to most of the 14 countries in the snow leopard range, but seems

especially sharp to Kirgizia. Yet half of the century ago Kirgizia has had about 1.5 thousand of the snow

leopards, and today there remains no more than 1/10. In Soviet time Kirgizia was a global supplier of the

snow leopards for the zoo-export &#65533; to create a reserve number of endangered cats in captivity. Today, at

least half of the snow leopards in the Zoos of the world are individuals, caught in Kirgizia or their

descendants.

Since independence, Kirgizia has set new records. In Sarychat-Irtash reserve &#65533; the best for the snow

leopard in Central Asia, and probably in the whole range &#65533; this species was completely destroyed after 3

years of reserve opening... and 17 years later &#65533; revived... Situation comes presently back to the worst-case

scenario, and not only for the snow leopard. Author shows how work in this direction social and economic

levers, and what kind future he would like to see in Kirgizia, where he lived for 12 years and was at the

forefront of pioneering research of the snow leopard and its conservation.
 
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  Area Expedition Conference  
  Notes Approved no  
  Call Number SLN @ rakhee @ Serial (down) 1454  
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Author Alexander, S., A., Zhang, C., Shi, K., Riordan, P. url 
  Title A granular view of a snow leopard population using camera traps in Central China Type Journal Article
  Year 2016 Publication Biological Conservation Abbreviated Journal  
  Volume Issue 197 Pages 27-31  
  Keywords Snow leopard Camera trap China Density Monitoring  
  Abstract Successful conservation of the endangered snow leopard (Panthera uncia) relies on the effectiveness of monitoring programmes. We present the results of a 19-month camera trap survey effort, conducted as part of a longterm study of the snow leopard population in Qilianshan National Nature Reserve of Gansu Province, China. Weassessed the minimumnumber of individual snowleopards and population density across different sampling periods using spatial capture–recapture methods. Between 2013–2014, we deployed 34 camera traps across an area of 375 km2, investing a total of 7133 trap-days effort. Weidentified a total number of 17–19 unique individuals

from photographs (10–12 adults, five sub-adults and two cubs). The total number of individuals identified and estimated density varied across sampling periods, between 10–15 individuals and 1.46–3.29 snow leopards per 100 km2 respectively. We demonstrate that snow leopard surveys of limited scale and conducted over short sampling periods only present partial views of a dynamic and transient system.We also underline the challenges in achieving a sufficient sample size of captures and recaptures to assess trends in snow leopard population size and/or density for policy and conservation decision-making
 
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  Call Number SLN @ rakhee @ Serial (down) 1436  
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Author Alexander, J. S., Shi, K., Tallents, L. A., Riordan, P. url  doi
  Title On the high trail: examining determinants of site use by the Endangered snow leopard Panthera uncia in Qilianshan, China Type Journal Article
  Year 2015 Publication Oryx Abbreviated Journal  
  Volume Issue Fauna & Flora International Pages 1-8  
  Keywords Camera Trap, China, Detection Probability, Occupancy Modelling, Panthera Uncia, Site use, Snow Leopard  
  Abstract Abstract There is a need for simple and robust techniques for assessment and monitoring of populations of the Endangered snow leopard Panthera uncia to inform the de- velopment of action plans for snow leopard conservation. We explored the use of occupancy modelling to evaluate the influence of environmental and anthropogenic features on snow leopard site-use patterns. We conducted a camera trap survey across &#63284;&#63288;&#63280; km&#63282; in Gansu Province, China, and used data from &#63286;&#63280; camera traps to estimate probabilities of site use and detection using the single season occupancy model. We assessed the influence of three covariates on site use by snow leopards: elevation, the presence of blue sheep Pseudois nayaur and the presence of human disturb- ance (distance to roads). We recorded &#63287;&#63286; captures of snow leopards over &#63282;,&#63289;&#63280;&#63286; trap-days, representing a mean capture success of &#63282;.&#63286;&#63282; captures per &#63281;&#63280;&#63280; trap-days. Elevation had the strongest influence on site use, with the probability of site use increasing with altitude, whereas the influence of presence of prey and distance to roads was relatively weak. Our findings indicate the need for practical and robust tech- niques to appraise determinants of site use by snow leo- pards, especially in the context of the limited resources available for such work.  
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  Call Number SLN @ rakhee @ Serial (down) 1433  
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Author Alexander, J. S., Gopalswamy, A. M., Shi, K., Riordan, P. url  doi
  Title Face Value: Towards Robust Estimates of Snow Leopard Densities Type Journal Article
  Year 2015 Publication Plos One Abbreviated Journal  
  Volume Issue Pages  
  Keywords Densities, Snow Leopard, Camera traps, Spatial Capture Recapture models  
  Abstract When densities of large carnivores fall below certain thresholds, dramatic ecological effects

can follow, leading to oversimplified ecosystems. Understanding the population status of

such species remains a major challenge as they occur in low densities and their ranges are

wide. This paper describes the use of non-invasive data collection techniques combined

with recent spatial capture-recapture methods to estimate the density of snow leopards

Panthera uncia. It also investigates the influence of environmental and human activity indicators

on their spatial distribution. A total of 60 camera traps were systematically set up during

a three-month period over a 480 km2 study area in Qilianshan National Nature Reserve,

Gansu Province, China. We recorded 76 separate snow leopard captures over 2,906 trapdays,

representing an average capture success of 2.62 captures/100 trap-days. We identified

a total number of 20 unique individuals from photographs and estimated snow leopard

density at 3.31 (SE = 1.01) individuals per 100 km2. Results of our simulation exercise indicate

that our estimates from the Spatial Capture Recapture models were not optimal to

respect to bias and precision (RMSEs for density parameters less or equal to 0.87). Our

results underline the critical challenge in achieving sufficient sample sizes of snow leopard

captures and recaptures. Possible performance improvements are discussed, principally by

optimising effective camera capture and photographic data quality.
 
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  Notes Approved no  
  Call Number SLN @ rakhee @ Serial (down) 1431  
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