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Author Ale, S.; Brown, J.
Title The contingencies of group size and vigilance Type Miscellaneous
Year 2007 Publication Evolutionary Ecology Research, Abbreviated Journal
Volume 9 Issue Pages 1263-1276
Keywords attraction effect,contingency,dilution effect,fitness,group-size effect,many-eyes effect,predation risk,vigilance behaviour; predation; decline; potential; predators; predator; feeding; Animals; Animal; use; food; effects; Relationship; behaviour; methods; game; Interactions; interaction; factor; value; Energy
Abstract (up) Background: Predation risk declines non-linearly with one's own vigilance and the vigilance of others in the group (the 'many-eyes' effect). Furthermore, as group size increases, the individual's risk of predation may decline through dilution with more potential victims, but may increase if larger groups attract more predators. These are known, respectively, as the dilution effect and the attraction effect.

Assumptions: Feeding animals use vigilance to trade-off food and safety. Net feeding rate declines linearly with vigilance.

Question: How do the many-eyes, dilution, and attraction effects interact to influence the relationship between group size and vigilance behaviour?

Mathematical methods: We use game theory and the fitness-generating function to determine the ESS level of vigilance of an individual within a group.

Predictions: Vigilance decreases with group size as a consequence of the many-eyes and dilution effects but increases with group size as a consequence of the attraction effect, when they act independent of each other. Their synergetic effects on vigilance depend upon the relative strengths of each and their interactions. Regardless, the influence of other factors on vigilance – such as encounter rate with predators, predator lethality, marginal value of energy, and value of vigilance – decline with group size.
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Call Number SLN @ rana @ 886 Serial 53
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Author Ale, S.
Title Conservation of the snow leopard in Nepal Type Miscellaneous
Year Publication Abbreviated Journal
Volume Issue Pages
Keywords Nepal; radio-collars; tracking; Annapurna-Conservation-Area; protected-areas; parks; reserves; refuge; conservation; livestock; religion; folklore; blue-sheep; blue; sheep; browse; radio collars; radio; collar; collars; annapurna conservation area; annapurna; area; protected; areas; 4080
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Notes Full text available at URL Approved no
Call Number SLN @ rana @ 2 Serial 51
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Author Ale, S.B.
Title Snow Leopard in Remote Districts of Nepal Type Miscellaneous
Year 1994 Publication Abbreviated Journal
Volume xii Issue Pages
Keywords Nepal; Manang; livestock; livestock-depredation; baiting; predation; villagers; herders; annapurna; retribution; conservation; management; training; tourism; browse; 4600
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Publisher Islt Place of Publication Seattle Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN ISBN Medium
Area Expedition Conference
Notes Full Text at URLJournal Title: Snow Line Approved no
Call Number SLN @ rana @ 447 Serial 54
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Author Ale, S.B.
Title The Annapurna Conservation Area Project: A Case Study of an Integrated Conservation and Development Project in Nepal Type Conference Article
Year 1997 Publication Abbreviated Journal
Volume Issue Pages 155-169
Keywords conservation; annapurna; park; parks; reserve; reserves; refuge; management; habitat; livestock; herders; herder; Acap; education; community-development; tourism; women; protected-area; browse; community; development; protected; area; 2960
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Publisher Islt Place of Publication Lahore, Pakistan Editor Jackson, R.; Ahmad, A.
Language English Summary Language Original Title
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Notes Full text at URLTitle, Monographic: Eighth International Snow Leopard SymposiumPlace of Meeting: Islamabad, PakistanDate of Copyright: 1997 Approved no
Call Number SLN @ rana @ 394 Serial 55
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Author Ale, S.B.
Title Religion and Snow Leopards in Nepal Type Miscellaneous
Year 1998 Publication Snow Line Abbreviated Journal
Volume xvi Issue Pages 10-10
Keywords Nepal; religion; tourism; Culture; folklore; buddhism; 4850
Abstract (up)
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Publisher Islt Place of Publication Seattle Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN ISBN Medium
Area Expedition Conference
Notes Journal Title: Snow Line Approved no
Call Number SLN @ rana @ 472 Serial 56
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Author Ale, S., Shrestha, B., and Jackson, R.
Title On the status of Snow Leopard Panthera Uncia (Schreber 1775) in Annapurna, Nepal Type Journal Article
Year 2014 Publication Journal of Threatened Taxa Abbreviated Journal
Volume Issue 6(3) Pages 5534-5543
Keywords Annapurna, Blue Sheep, Buddhism, camera-trapping, Himalayas, Mustang, sign-survey, Snow Leopard.
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Notes Approved no
Call Number SLN @ rakhee @ Serial 1407
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Author Ale, S.B.; Yonzon, P.; Thapa, K.
Title Recovery of snow leopard Uncia uncia in Sagarmatha (Mount Everest) National Park, Nepal Type Miscellaneous
Year 2007 Publication Oryx Abbreviated Journal
Volume 41 Issue Pages 89-92
Keywords 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
Abstract (up) 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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Notes http://www.snowleopardnetwork.org/bibliography/Ale_2007.pdf Approved no
Call Number SLN @ rana @ 884 Serial 58
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Author Tiwari, M. P., Devkota, B. P., Jackson, R. M., Chhetri, B. B. K., Bagale, S.
Title What Factors Predispose Households in Trans-Himalaya (Central Nepal) to Livestock Predation by Snow Leopards? Type Journal Article
Year 2020 Publication Animals Abbreviated Journal
Volume 10 Issue 2187 Pages 1-14
Keywords human-snow leopard conflict; livestock predation; Narphu valley; trans-Himalaya
Abstract (up) Livestock depredation across the trans-Himalaya causes

significant economic losses to pastoralist communities. Quantification

of livestock predation and the assessment of variables associated with

depredation are crucial for designing effective long-term mitigation

measures. We investigated the patterns and factors of livestock

depredation by snow leopards (Panthera uncia) using semi-structured

questionnaires targeting herders in the Narphu valley of the Annapurna

Conservation Area, Nepal. During the two years (2017/18 and 2018/19),

73.9% of the households interviewed (n = 65) lost livestock to snow

leopards, with an annual average loss of two livestock per household. Of

the total depredation attributed to snow leopards, 55.4% were yak

(mainly female: 79%), 31.7% goat, 6.8% sheep, 3.2% horse and 2.8%

cattle. Results from applying Generalized Linear Mixed Models (GLMMs)

revealed the total number of livestock owned and the number of larger

bodied livestock species as the main explanatory covariates explaining

livestock depredation. Forty-one (41%) of all herders considered snow

leopard’s preference for domestic livestock as the main factor in

livestock predation, whereas only 5% perceived poor herding practice as

the main reason for the loss. Our study found poor and changing herding

practices in the valley, whereby 71% herders reported careful herding as

a solution to snow leopard depredation, and 15% of herders considered

the complete extermination of snow leopards as the best solution to the

problem. Tolerance levels and awareness among herders towards snow

leopard conservation is increasing, mainly due to the Buddhist religion

and strict law enforcement within this protected area. We recommend the

effective implementation of a community-based livestock insurance scheme

to compensate the economic loss of herders due to predation and improved

herding practices as the recommended mitigation measures for ensuring

livestock security and snow leopards’ conservation in the valley.
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Notes Approved no
Call Number Serial 1624
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Author Ale, S.B., Brown, J.S.
Title Prey behavior leads to predator: a case study of the Himalayan tahr and the snow leopard in Sagarmatha (Mt. Everest) National Park, Nepal Type Journal Article
Year 2009 Publication Israel Journal of Ecology & Evolution Abbreviated Journal
Volume 55 Issue 4 Pages 315-327
Keywords vigilance, fear, behavioral indicator, predator, prey, snow leopard, Himalayan tahr, Mount Everest
Abstract (up) Rare, elusive predators offer few sightings, hindering research with small sample sizes and lack of experimentation. While predators may be elusive, their prey are more readily observed. Prey respond to the presence of a predator, and these fear responses may have population- and community-level consequences. Anti-predator behaviors, such as vigilance, allow us to sidestep the difficulty of direct field studies of large predators by studying them indirectly. Here we used a behavioral indicator, the vigilance behavior of the Himalayan tahr, the snow leopard’s main local prey, to reveal the distribution and habitat use of snow leopards in the Mt. Everest region of Nepal. We combined techniques of conventional field biology with concepts of foraging theory to study prey behavior in order to obtain insights into the predator’s ecology. The Himalayan tahr’s vigilance behavior correlates with the distribution of snow leopard signs. Tahr actually led us to six sightings of snow leopards. We conclude that behavioral indicators provided by prey offer a valuable tool for studying and monitoring stealthy and rare carnivores.
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Publisher Science from Israel, a division of LPPLtd. Place of Publication Israel Editor
Language English Summary Language English Original Title
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Notes Approved no
Call Number SLN @ rana @ Serial 1109
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Author Ale, S.B., Boesi, R.
Title Snow Leopard Sightings on the Top of the World Type Journal Article
Year 2005 Publication Cat News Abbreviated Journal
Volume Issue 43 Pages 19-20
Keywords Mt.Everest, Sagarmatha National Park, sightings, snow leopard, Uncia uncia
Abstract (up) Sightings of snow leopards Uncia uncia in the wild are rare. This is because snow leopards occur in low numbers and are very elusive (Schaller 1977). Snow leopards may be sparsely distributed,but they may not, however, be very elusive in the world's highest park, Sagarmatha (Mt. Everest) National Park (86° 30' 53“ E to 86° 99' 08” E and 27° 46' 19“ N to 27° 06' 45” N) in Nepal.
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Publisher Place of Publication Editor
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Notes Approved no
Call Number SLN @ rana @ Serial 1111
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