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| Author | Schaller, G.B. | ||||
| Title | Mountain Monarchs: Wild Sheep and Goats of the Himalaya (Wildlife Behavior & Ecology) | Type | Book Whole | ||
| Year | 1977 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | 146-159 | ||
| Keywords | sheep; goats; Pakistan; Nepal; marking; spraying; scrapes; sprays; behavior; predator; prey; browse; 2250; mountain; wild; wild sheep; goat; Himalaya; wildlife; ecology | ||||
| 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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| Publisher | University of Chicago Press | Place of Publication | Chicago | Editor | |
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Approved | no | |||
| Call Number | SLN @ rana @ 39 | Serial | 864 | ||
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| Author | McCarthy, T.; Khan, J.; Ud-Din, J.; McCarthy, K. | ||||
| Title | First study of snow leopards using GPS-satellite collars underway in Pakistan | Type | Journal Article | ||
| Year | 2007 | Publication | Cat News | Abbreviated Journal | |
| Volume | 46 | Issue | Spring | Pages | 22-23 |
| Keywords | study; snow; snow leopards; snow leopard; snow-leopards; snow-leopard; leopards; leopard; using; collars; collar; Pakistan; uncia; Uncia uncia; Uncia-uncia; habitat; Cats; cat; sound; knowledge; ecology; behavior; conserve; information; radio; radio collars; radio collar; radio-collars; radio-collar; Nepal; 1980; Mongolia; 1990; Gps; Report; Data; Satellite | ||||
| Abstract | Snow leopards (Uncia uncia) are highly cryptic and occupy remote inaccessible habitat, making studying the cats difficult in the extreme. Yet sound knowledge of the cat's ecology, behavior and habitat needs is required to intelligently conserve them. This information is lacking for snow leopards, and until recently so was the means to fill that knowledge gap. Two long-term studies of snow leopards using VHF radio collars have been undertaken in Nepal (1980s) and Mongolia (1990s) but logistical and technological constraints made the findings of both studies equivocal. Technological advances in the interim, such as GPS collars which report data via satellite, make studies of snow leopards more promising, at least in theory. | ||||
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Approved | no | |||
| Call Number | SLN @ rana @ 1009 | Serial | 666 | ||
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| Author | McCarthy, T. | ||||
| Title | Update: Mongolia | Type | Journal Article | ||
| Year | 1994 | Publication | Snow Line | Abbreviated Journal | |
| Volume | Xii | Issue | 1 | Pages | 3-4 |
| Keywords | conservation; ecology; Mongolia; snow leopard | ||||
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| Publisher | International Snow Leopard Trust | Place of Publication | Editor | ||
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| Notes |
Approved | no | |||
| Call Number | SLN @ rana @ 239 | Serial | 654 | ||
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| Author | Durbach, I., Borchers, D., Sutherland, C., Sharma, K. | ||||
| 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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Approved | no | |||
| Call Number | Serial | 1618 | |||
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