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Author |
Suryawanshi, K. R., Khanyari, M., Sharma, K., Lkhagvajav, P., Mishra, C. |
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Title |
Sampling bias in snow leopard population estimation studies |
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Journal Article |
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Year |
2019 |
Publication  |
Population Eccology |
Abbreviated Journal |
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1-9 |
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Keywords |
camera trap, Central Asia, Himalaya, meta-analysis, monitoring, Panthera uncia, population ecology |
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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�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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no |
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Call Number |
SLN @ rakhee @ |
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1477 |
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Author |
Sharma, K. |
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Title |
The mysterious irbis |
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Magazine Article |
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Year |
2008 |
Publication |
Sanctuary Asia |
Abbreviated Journal |
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28 |
Issue |
6 |
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52-57 |
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Keywords |
Mongolia, Snow Leopard Conservation Fund, Panthera, Snow Leopard Trust, long-term, ecology, Tost, snow leopard |
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English |
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no |
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SLN @ rana @ |
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1300 |
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Author |
McCarthy, T. |
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Title |
Update: Mongolia |
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Journal Article |
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Year |
1994 |
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Snow Line |
Abbreviated Journal |
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Xii |
Issue |
1 |
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3-4 |
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conservation; ecology; Mongolia; snow leopard |
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International Snow Leopard Trust |
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no |
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SLN @ rana @ 239 |
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654 |
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Author |
Anonymous |
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Title |
Save the Snow Leopard. (Road and Gas Pipeline Project Threatens Ecology of Siberia) |
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Journal Article |
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Year |
2000 |
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The Ecologist |
Abbreviated Journal |
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30 |
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4 |
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14 |
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Keywords |
pipeline; siberia; Russia; ecology; habitat; environmentalism; browse; 1030 |
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An interregional organisation called Siberian Accord plans to construct a road and gas pipeline to China, This association, which has vast political powers, exists to create favorable conditions for investing in Siberia. |
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Copyright 2000 MIT Press Journals Document Type: English |
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Call Number |
SLN @ rana @ 393 |
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90 |
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