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Zhang, L., Lian, X., Yang, X |
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Title |
Population density of snow leopards (Panthera Uncia) in the Yage Valley Region of the Sanjiangyuan National Park: Conservation Implications and future directions |
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2020 |
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Artic, Antartic and Alpine Research |
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52 |
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1 |
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541-550 |
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Snow leopard; population density; camera trapping; Tibetan Plateau; alpine ecosystem |
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Population-based studies on snow leopard (Panthera uncia) are of theoretical and practical sig- nificance for the conservation of alpine ecosystems, though geographic remoteness and isolation hinder surveys in many promising regions. The Sanjiangyuan National Park on the Tibetan Plateau is acknowledged as a main snow leopard habitat, but most of the region remains unexplored and unknown. We adopted a combined approach of route survey and camera trapping survey to explore the population density of snow leopard in the Yage Valley region of the Sanjiangyuan National Park. Results indicated that (1) large populations of blue sheep contributed to the major food supply for snow leopards, along with diverse prey species as dietary supplementations, and (2) a population density of four to six snow leopards per 100 km2 on the north bank was estimated, and nine to fourteen individuals within the valley core areas were identified. We also argue that under the potential impacts of hydropower dams, this valley ecosystem should be symbolized as a conservation hotspot and therefore merits prioritized conservation. We recommend further surveys combined with novel methods/techniques and advocate a sustainable ecotourism model for the first V-shaped valley along the Yangtze mainstream. |
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1619 |
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Durbach, I., Borchers, D., Sutherland, C., Sharma, K. |
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Title |
Fast, flexible alternatives to regular grid designs for spatial
capture–recapture. |
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Research Article |
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2020 |
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Methods in Ecology and Evolution |
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1-13 |
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camera trap, population ecology,sampling, spatial capture-recapture, surveys |
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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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1618 |
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Abdunazarov B.B. |
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Title |
Biodiversity of mammals in the Western Tien Shan and its conservation |
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Miscellaneous |
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2002 |
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22-23 |
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Uzbekistan; biodiversity; mammals; mountain ecosystems; Western Tien Shan; Pamir-Alai; endemic; number; human influence; illegal hunting; habitat degradation; snow leopard.; 5770; Russian |
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The mammal fauna of Uzbekistan's mountain ecosystems is represented by some 60 species. Data on mammal species composition in the Western Tien Shan (48 species) and Pamir-Alai (57 species) is given. A quantity of species endemic to the mountainous ecosystems of Uzbekistan is defined. Quantities of nine rare species inhabiting the mountain ecosystems, including snow leopard, are given. Number of snow leopard in Pamir-Alai and the Western Tien Shan is estimated to be 30-50 animals. |
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Full text available in RussianJournal Title: Biodiversity of the Western Tien Shan: protection and sustainable use. |
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SLN @ rana @ 557 |
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22 |
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Ahmad, A.; Rawat, J.S.; Rai, S.C. |
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Title |
An Analysis of the Himalayan Environment and Guidelines for its Management and Ecologically Sustainable Development |
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1990 |
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Environmentalist |
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10 |
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4 |
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281-298 |
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environmental-assessment; human-impact; sustainable-development; management-guideline; ecological-degradation; mountain-ecosystem; impact-assessment; developing-country; asia; Himalayas; snow-leopard; snow leopard; browse; environmental; assessment; Human; impact; sustainable; development; management; guidline; ecological; degradations; mountain; ecosystem; 830 |
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The impacts of human activities on the bio-geophysical and socio-economic environment of the Himalayas are analysed. The main man-induced activities which have accelerated ecological degradation and threatened the equilibrium of Himalayan mountain ecosystems are stated as: unplanned land use, cultivation on steep slopes, overgrazing, major engineering activities, over-exploitation of village or community forests, lopping of broad leaved plant species, shifting cultivation (short cycle) in north-east India, tourism and recreation. The geomorphological conditions are major factors responsible for landslides which cause major havoc every year in the area. Wild fauna, like musk deer and the snow leopard are now under threat partially due to changes in their habitat and the introduction of exotic plant species. Population pressure and migration are major factors responsible for poverty in the hills. The emigration of the working male population has resulted in the involvement of women as a major work-force. Guidelines, with special emphasis on the application of environmental impact assessments for the management of the Himalayas, are proposed. -from Authors |
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SLN @ rana @ 145 |
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38 |
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Author |
Ale S. |
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Title |
Have snow leopards made a comeback to the Everest region of Nepal? |
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Report |
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2005 |
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1-21 |
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snow; snow leopards; snow leopard; snow-leopards; snow-leopard; leopards; leopard; region; Nepal; Report; International; international snow leopard trust; International-Snow-Leopard-Trust; trust; program; 1960; endangered; Sagarmatha; High; Himalaya; tourism; impact; establishment; national; national park; National-park; park; 1980; area; Tibet; surveys; survey; status; Cats; cat; prey; research; project; sign; transects; transect; length; valley; Response; hunting; recovery; Himalayan; tahr; density; densities; range; pugmarks; sighting; 60; study; population; predators; predator; structure; prey species; prey-species; species; populations; mortality; effects; predation; population dynamics |
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In the 1960s, the endangered snow leopard was locally extirpated from the Sagarmatha (Mt. Everest) region of Nepal. In this Sherpa-inhabited high Himalaya, the flourishing tourism since the ascent of Mt Everest in 1953, has caused both prosperity and adverse impacts, the concern that catalyzed the establishment of Mt. Everest National Park in the region in 1976. In the late 1980s, there were reports that some transient snow leopards may have visited the area from adjoining Tibet, but no biological surveys exist to confirm the status of the cats and their prey. Have snow leopards finally returned to the top of the world? Exploring this question was the main purpose of this research project. We systematically walked altogether 24 sign transects covering over 13 km in length in three valleys, i.e. Namche, Phortse and Gokyo, of the park, and counted several snow leopard signs. The results indicated that snow leopards have made a comeback in the park in response to decades of protective measures, the virtual cessation of hunting and the recovery of the Himalayan tahr which is snow leopard's prey. The average sign density (4.2 signs/km and 2.5 sign sites/km) was comparable to that reported from other parts of the cats' range in the Himalaya. On this basis, we estimated the cat density in the Everest region between 1 to 3 cats per 100 sq km, a figure that was supported by different sets of pugmarks and actual sightings of snow leopards in the 60 km2 sample survey area. In the study area, tahr population had a low reproductive rate (e.g. kids-to-females ratio, 0.1, in Namche). Since predators can influence the size and the structure of prey species populations through mortality and through non-lethal effects or predation risk, snow leopards could have been the cause of the population dynamics of tahr in Sagarmtha, but this study could not confirm this speculation for which further probing may be required. |
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Progress report for the International Snow Leopard Trust Small Grants Program. |
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SLN @ rana @ 1063 |
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50 |
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Ale, S.B.; Yonzon, P.; Thapa, K. |
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Title |
Recovery of snow leopard Uncia uncia in Sagarmatha (Mount Everest) National Park, Nepal |
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Miscellaneous |
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2007 |
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Oryx |
Abbreviated Journal |
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41 |
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89-92 |
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Nepal; recovery; Sagarmatha Mount Everest National Park; snow leopard; Uncia uncia; surveys; survey; snow; snow-leopard; leopard; uncia; Uncia-uncia; valley; Sagarmatha; national; national park; National-park; park; using; information; management; system; research; transects; transect; sign; areas; area; snow leopards; snow-leopards; leopards; 40; Himalayan; tahr; musk; musk-deer; deer; location; recent; species; grazing; land; Forest; habitat; domestic; wild; ungulates; ungulate; livestock; tourism; development; traditional; land use; land-use; use; wildlife |
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From September to November 2004 we conducted surveys of snow leopard Uncia uncia signs in three major valleys in Sagarmatha (Mount Everest) National Park in Nepal using the Snow Leopard Information Management System, a standardized survey technique for snow leopard research. We walked 24 transects covering c. 14 km and located 33 sites with 56 snow leopard signs, and 17 signs incidentally in other areas. Snow leopards appear to have re-inhabited the Park, following their disappearance c. 40 years ago, apparently following the recovery of Himalayan tahr Hemitragus jemlahicus and musk deer Moschus chrysogaster populations. Taken together the locations of all 73 recent snow leopard signs indicate that the species is using predominantly grazing land and shrubland/ open forest at elevations of 3,000-5,000 m, habitat types that are also used by domestic and wild ungulates. Sagarmatha is the homeland of c. 3,500 Buddhist Sherpas with .3,000 livestock. Along with tourism and associated developments in Sagarmatha, traditional land use practices could be used to ensure coexistence of livestock and wildlife, including the recovering snow leopards, and ensure the wellbeing of the Sherpas. |
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http://www.snowleopardnetwork.org/bibliography/Ale_2007.pdf |
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SLN @ rana @ 884 |
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58 |
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Ali, S.M. |
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Title |
The Cats of India |
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1990 |
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Myforest |
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26 |
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3 |
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275-291 |
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lion; clouded-leopard; cheetah; tiger; leopard; snow-leopard; India; Panthera-leo; Neofelis-nebylosa; Acinonyx-jubatus; Panthera-tigris; Panthera-pardus; Panthera-uncia; behavior; ecology; snow leopard; browse; panthera; uncia; pardus; clouded; leo; neofelis; nebylosa; ancinonyx; jubatus; 820 |
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Describes the range, behaviour and ecology of lion Panthera leo, tiger P. tigris, leopard P. pardus, snow leopard P. uncia, clouded leopard Neofelis nebylosa and cheetah Acinonyx jubatus. -P.J.Jarvis |
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Allen, P. |
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Title |
WWF Progress Report: Irbis Enterprises Snow Leopard Conservation Incentive Project |
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1999 |
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irbis; conservation; herders; livestock; economics; Mongolia; gobi; poaching; community-development; development; browse; community; 4100 |
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Location: Uvs Aimag (Turgen and Tsagaan Shuvuut Strictly Protected Areas)Gobi Altai Aimag (Great Gobi Strictly Protected Area) |
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SLN @ rana @ 355 |
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Allen, P.; Macray, D. |
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Title |
Snow Leopard Enterprises Description and Summarized Business Plan |
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2002 |
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snow; leopard; enterprises; buisness; plan; habitat; humans; conflict; irbis; products; wool; conservation; marketing; Mongolia; social; economic; conflicts; country; countries; socks; hats; gloves; 4890; Human; snow leopards; snow leopard; snow-leopards; snow-leopard; leopards; central; Central Asia; asia; ecosystem; region; populations; population; herders; herder; threat; potential; impact; environment; Elements; landscape; International; international snow leopard trust; International-Snow-Leopard-Trust; trust; snow-leopard-enterprises |
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The habitat for both humans and snow leopards in Central Asia is marginal, the ecosystem fragile. The struggle for humans to survive has often, unfortunately, brought them into conflict with the region's dwindling snow leopard populations. Herders commonly see leopards as a threat to their way of life and well-being. Efforts to improve the living conditions of humans must consider potential impacts on the environment. Likewise, conservation initiatives cannot ignore humans as elements of the landscape with a right to live with dignity and pride. Based on these principles, the International Snow Leopard Trust has developed a new conservation model that addresses the needs of all concerned.
We call it Snow Leopard Enterprises.. |
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Islt |
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Title, Monographic: Proceedings of the Snow Leopard Survival SummitPlace of Meeting: Seattle,WA |
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SLN @ rana @ 475 |
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68 |
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Anonymous |
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Resolutions Conservation of Snow Leopard, Seventh International Snow Leopard Symposium |
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1994 |
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329-331 |
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resolutions; conservation; management; Khunjerab; Taxkorgan; Sagarmatha; Makalu-Barun; Qomolangma; Transboundry; protected-areas; parks; reserves; refuge; Nepal; Tibet; China; Pakistan; Cites; Slims; eco-development; livestock; herders; conflict; siberia; gobi; Altay; Altai; Mongolia; Arksai; Liqaru; Arba; Ganzi; Baoxin; pollution; pesticides; toxicity; cooperation; status; zoos; zoological-gardens; browse; protected; area; areas; protected area; protected areas; eco development; eco; development; zoological; gardens; zoological gardens; 3530 |
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Islt |
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Usa |
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J.L.Fox; D.Jizeng |
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Full Text at URLTitle, Monographic: Seventh International Snow Leopard SymposiumPlace of Meeting: ChinaDate of Copyright: 1994 |
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