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Author Wolf, M.; Ale, S.
Title Signs at the Top: Habitat Features Influencing Snow Leopard Uncia Uncia Activity in Sagarmatha National Park, Nepal Type Journal Article
Year 2009 Publication Journal of Mammalogy Abbreviated Journal
Volume (down) 90 Issue 3 Pages 604-611
Keywords activity patterns,human activity,Nepal,predator-prey,sign data,Uncia uncia
Abstract We used logistic regression to examine factors that affected the spatial distribution of sign (scrapes, feces, footprints, spray or scent marks, and rubbing sites) in a newly reestablished population of snow leopards (Uncia uncia) in Sagarmatha (Mount Everest) National Park, Nepal. Our results indicate that terrain and human activity were the most important factors determining the spatial distribution of leopard activity, whereas presence of their major prey species (Himalayan tahr [Hemitragus jemlahicus]) had only a moderate effect. This suggests that localities at which these animals are active represent a trade-off between suitable habitat and avoidance of potential risk from anthropogenic origins. However, the influence of prey presence was likely underestimated because of the methodology used, and likely weighed in the trade-off as well.
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Notes Department of Biological Sciences (M/C 066), University of Illinois at Chicago, 845 West Taylor Street, 3352 SES, Chicago, IL 60607-7060, USA Approved no
Call Number SLN @ rana @ 1026 Serial 1027
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Author Pandey, B. P., Thami, S., Shrestha, R., Subedi, N., Chalise, M. K., Ale, S. B.
Title Snow leopards and prey in Rolwaling Valley, Gaurishankar Conservation Area, Nepal Type Journal Article
Year 2021 Publication CATnews Abbreviated Journal
Volume (down) 74 Issue Windter 2021 Pages 14-19
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Abstract The snow leopard Panthera uncia, an apex predator of the Himalayan ecosystem, often shares habitat with the wolf, Canis lupus, red fox Vulpes vulpes, and other carnivores. A biodiversity monitoring programme primarily focused on the assessment of the status of snow leopard and its prey in Rolwaling valley of Gaurishankar Conservation Area, Nepal, was carried out during June–November 2019. We deployed single camera traps in each of twelve grids sized 16 km2 each, operated 24 hours, and left alone for the whole study period. A single snow leopard was captured thrice on same camera in Rhododendron anthopogon-Hippophae thibetana scrubland, near Tsho Rolpa glacial lake (4,536 m). Alongwith snow leopard, wolves were also photographed at three sites namely Yelung pass (4,956 m), Tsho Rolpa (4,536 m) and Dudhkunda ridgeline (5,091 m). The red fox was the most frequent predator in Rolwaling while stone marten Martes foina, yellow-throated marten Martes flabigula, and yellow-belied weasel Mustella katiyah were captured occasionally. Photo capture rate index PCRI per 100 trap nights was calculated for all identifiable species where snow leopard and wolf had PCRI values of 0.35 and 0.71, respectively. The Cumulative PCRI values suggest a pyramid shaped community structure in Rolwaling with small herbivores (including game birds) with broad base (PCRI 22.29) followed by large herbivores (10.38) and small-medium sized carnivores (6.96). The top predators (snow leopard and wolf) produces 1.06 photographic rate index. The declaration of Gaurishankar conservation area and continuous efforts from conservation area management committees, strict cultural rules from local Buddhist community in the valley are found possibly favoured the recolonization of the wolf and frequent visits by snow leopard.
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Notes Approved no
Call Number SLN @ rakhee @ Serial 1669
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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 (down) 55 Issue 4 Pages 315-327
Keywords vigilance, fear, behavioral indicator, predator, prey, snow leopard, Himalayan tahr, Mount Everest
Abstract 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., Thapa, K., Jackson, R., Smith, J.L.D.
Title The fate of snow leopards in and around Mt. Everest Type Journal Article
Year 2010 Publication Cat News Abbreviated Journal
Volume (down) 53 Issue Autumn Pages 19-21
Keywords Mt. Everest, Everest, Rolwaling, snow leopard, re-colonize, Nepal
Abstract Since the early 2000s snow leopards Panthera uncia have re-colonized the southern slopes of Mt. Everest after several decades of extirpation. Are they now beginning to disperse to the adjoining valleys that may serve as habitat corridors linking the Everest region to other protected areas in Nepal? We conducted a cursory survey in autumn 2009 in Rolwaling lying west of Mt. Everest and detected snow leopard presence. We conclude that in these remote valleys snow leopards must rely upon livestock given the low abundance of natural prey, Himalayan tahr. Livestock-rearing is unfortunately declining in the region. Rolwaling requires immediate conservation attention for the continued survival of the endangered snow leopard and other high altitude flora and fauna.
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Call Number SLN @ rana @ Serial 1181
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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 (down) 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 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 Jackson, R.M.; Ahlborn, G.; Gurung, M.; Ale, S.
Title Reducing livestock depredation losses in the Nepalese Himalaya Type Journal Article
Year 1996 Publication Proc.Vertebr.Pest Conf Abbreviated Journal
Volume (down) 17 Issue Pages 241-247
Keywords damage; damage-by-wildlife; endangered; threatened species; livestock; mammals; management; predator-control; public-relations; wildlife; livestock-relationships; Nepal; asia; herders; conservation; Manang; Khangshar; depredation; conflict; predator; prey; browse; public; threatened; species; control; Relations; 700
Abstract The authors investigated livestock depredation patterns of snow leopards on the northern slopes of the Himalayans near the villages of Manang and Khangshar, Nepal. Information is discussed on the relationships among livestock loss, endangered species management, public relations/conservation issues, and cooperative efforts among institutions involved in the decision making process. A plan is devised for alleviating livestock loss and protecting endangered species in the area. pcp
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Notes Full Text at URL: ADDRESS: Mountain Inst., Main & Dogwood St., Franklin, WV 26807//“Proceedings Seventeenth Vertebrate Pest Conference-March 5-7, 1996, Rohnert Park, California”; Timm, Robert M.; Crabb, A. Charles, editorsDocument Type: English Approved no
Call Number SLN @ rana @ 271 Serial 480
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Author Lovari, S., Boesi, R., Minder, I., Mucci, N., Randi, E., Dematteis, A., and Ale, S. B.
Title Restoring a keystone predator may endanger a prey species in a human-altered ecosystem: the return of the snow leopard to Sagarmatha National Park Type Journal Article
Year 2009 Publication Animal Conservation Abbreviated Journal
Volume (down) 12 Issue Pages 559-570
Keywords conservation, food habits, genetics, Hemitragus jemlahicus, Himalayan tahr, management, microsatellite, predation, presence, scat, scat analysis, snow leopard, Uncia uncia
Abstract Twenty-five years ago, the snow leopard Uncia uncia, an endangered large cat, was eliminated from what is now Sagarmatha National Park (SNP). Heavy hunting pressure depleted that area of most medium-large mammals, before it became a park. After three decades of protection, the cessation of hunting and the recovery of wild ungulate populations, snow leopards have recently returned (four individuals). We have documented the effects of the return of the snow leopard on the population of its main wild prey, the Himalayan tahr Hemitragus jemlahicus, a 'near-threatened' caprin. Signs of snow leopard presence were recorded and scats were collected along a fixed trail (130 km) to assess the presence and food habits of the snow leopard in the Park, from 2004 to 2006. Himalayan tahr, the staple of the diet, had a relative occurrence of 48% in summer and 37% in autumn, compared with the next most frequent prey, musk deer Moschus chrysogaster (summer: 20%; autumn: 15%) and cattle (summer: 15%; autumn: 27%). In early summer, the birth rate of tahr (young-to-female ratio: 0.8-0.9) was high. The decrease of this ratio to 0.1-0.2 in autumn implied that summer predation concentrated on young tahr, eventually altering the population by removing the kid cohort. Small populations of wild Caprinae, for example the Himalayan tahr population in SNP, are sensitive to stochastic predation events and may be led to almost local extinction. If predation on livestock keeps growing, together with the decrease of Himalayan tahr, retaliatory killing of snow leopards by local people may be expected, and the snow leopard could again be at risk of local extinction. Restoration of biodiversity through the return of a large predator has to be monitored carefully, especially in areas affected by humans, where the lack of important environmental components, for example key prey species, may make the return of a predator a challenging event.
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Call Number SLN @ rana @ Serial 1122
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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 (down) 10 Issue 2187 Pages 1-14
Keywords human-snow leopard conflict; livestock predation; Narphu valley; trans-Himalaya
Abstract 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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Call Number Serial 1624
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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 (down) 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 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.B.
Title Snow Leopard in Remote Districts of Nepal Type Miscellaneous
Year 1994 Publication Abbreviated Journal
Volume (down) 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
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Notes Full Text at URLJournal Title: Snow Line Approved no
Call Number SLN @ rana @ 447 Serial 54
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