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Author Wang, X.; Peng, J.; Zhou, H. url 
  Title Preliminary observations on the distribution and status of dwarf blue sheep Pseudois schaeferi Type Journal Article
  Year 2000 Publication Oryx Abbreviated Journal  
  Volume 34 Issue 1 Pages 21-26  
  Keywords (up) Batang County of China; conservation; status; distribution; dwarf blue sheep; Pseudois schaeferi.; 5190  
  Abstract Describes the drastic decline of the dwarf blue sheep since the 1950's primarily due to over-hunting. There are an estimated 200 individuals remaining in a 295 square km range in Batang county, China. The authors recommend urgent protection for this species.  
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  Notes Full text available at URL Approved no  
  Call Number SLN @ rana @ 504 Serial 1004  
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Author Wegge, P., Shrestha, R., Flagstad, O. url 
  Title Snow leopard Panthera uncia predation on livestock and wild prey in a mountain valley in northern Nepal: implications for conservation management Type Journal Article
  Year 2012 Publication Wildlife Biology Abbreviated Journal  
  Volume 18 Issue 10.2981/11-049 Pages 131-141  
  Keywords (up) bharal, blue sheep, diet, genetic sampling, naur, Panthera uncia, predation, Pseudois nayaur, scat analysis, snow leopard, wildlife conflict  
  Abstract The globally endangered snow leopard Panthera uncia is sparsely distributed throughout the rugged mountains in Asia.

Its habit of preying on livestock poses a main challenge to management. In the remote Phu valley in northern Nepal, we

obtained reliable information on livestock losses and estimated predator abundance and diet composition from DNA

analysis and prey remains in scats. The annual diet consisted of 42%livestock. Among the wild prey, bharal (blue sheep/

naur) Pseudois nayaur was by far the most common species (92%). Two independent abundance estimates suggested that

there were six snow leopards in the valley during the course of our study. On average, each snow leopard killed about one

livestock individual and two bharal permonth. Predation loss of livestock estimated fromprey remains in scats was 3.9%,

which was in concordance with village records (4.0%). From a total count of bharal, the only large natural prey in the area

and occurring at a density of 8.4 animals/km2 or about half the density of livestock, snow leopards were estimated to

harvest 15.1% of the population annually. This predation rate approaches the natural, inherent recruitment rate of this

species; in Phu the proportion of kids was estimated at 18.4%. High livestock losses have created a hostile attitude against

the snow leopard and mitigation measures are needed. Among innovative management schemes now being implemented

throughout the species’ range, compensation and insurance programmes coupled with other incentive measures are

encouraged, rather than measures to reduce the snow leopard’s access to livestock. In areas like the Phu valley, where the

natural prey base consists mainly of one ungulate species that is already heavily preyed upon, the latter approach, if

implemented, will lead to increased predation on this prey, which over time may suppress numbers of both prey and

predator.
 
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  Call Number SLN @ rakhee @ Serial 1386  
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Author Shrestha, R.; Wegge, P. url 
  Title Wild sheep and livestock in Nepal Trans-Himalaya: coexistence or competition? Type Journal Article
  Year 2008 Publication Environmental Conservation Abbreviated Journal  
  Volume 32 Issue 2 Pages 125-136  
  Keywords (up) bharal; blue sheep; diet; food habits; mountain ungulates; Nepal; pastoralism; pseudois nayaur; rangeland management; resource partitioning  
  Abstract Excessive grazing by livestock is claimed to displace wild ungulates in the Trans-Himalaya. This study compares the seasonal diets and habitat use of sympatric wild naur Pseudois nayaur and domestic goat Capra hircus, sheep Ovis aries and free-ranging yak Bos grunniens in north Nepal and analyses their overlap both within and across seasons. Alpinemeadow and the legumes Oxytropis and Chesneya were critical resources for all animal groups. High overlap occurred cross-seasonally when smallstock (sheep and goats) in summer used the spring and autumn ranges of naur. Relatively high total ungulate biomass (3028 kg km-2) and low recruitment of naur (56 young per 100 adult females in autumn) suggested interspecific competition. The spatio-temporal heterogeneity in composition and phenology of food plants across the steep gradient of altitude, together with rotational grazing, appears to indirectly facilitate coexistence of naur and smallstock. However, owing to high crossseasonal (inter-seasonal) overlaps, competition is likely to occur between these two groups at high stocking densities. Within seasons, naur overlapped more with free-ranging yak than with smallstock. As their habitat use and diets were most similar in winter, when both fed extensively on the same species of shrubs, naur was most likely to compete with yak during that season.




 
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  Call Number SLN @ rana @ 936 Serial 890  
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Author Wikramanayake, E. url 
  Title Tracking snow leopard and blue sheep, WWF conservationist Eric Wikramanayake goes on a wildlife survey in Bhutan Type Miscellaneous
  Year Publication Abbreviated Journal  
  Volume Issue Pages  
  Keywords (up) Bhutan; blue-sheep; surveys; Jigme-Dorji; parks; park; reserve; protected-area; refuge; habitat; blue; sheep; browse; Jigme; Dorji; protected; area; 3980  
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  Notes Full text at URL Approved no  
  Call Number SLN @ rana @ 8 Serial 1021  
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Author Thapa, K., Schmitt, N., Pradhan, N. M. B., Acharya, H. R., Rayamajhi, S. pdf 
  Title No silver bullet? Snow leopard prey selection in Mt. Kangchenjunga, Nepal Type Journal Article
  Year 2021 Publication Ecology and Evolution Abbreviated Journal  
  Volume Issue Pages 1-13  
  Keywords (up) blue sheep, common leopard, fecal, genetic analysis, snow leopard, wolf, yak  
  Abstract In this study, we investigated the impact of domestic and wild prey availability on snow leopard prey preference in the Kangchenjunga Conservation Area of eastern Nepal-a region where small domestic livestock are absent and small wild ungulate prey are present. We took a comprehensive approach that combined fecal genetic sampling, macro- and microscopic analyses of snow leopard diets, and direct observation of blue sheep and livestock in the KCA. Out of the collected 88 putative snow leopard scat samples from 140 transects (290km) in 27 (4x4km2) sampling grid cells, 73 (83%) were confirmed to be from snow leopard. The genetic analysis accounted for 19 individual snow leopards (10 males and 9 females), with a mean population size estimate of 24 (95% CI: 19-29) and an average density of 3.9 snow leopards/100km2 within 609km2. The total available prey biomass of blue sheep and yak was estimated at 355,236 kg (505 kg yak/km2 and 78kg blue sheep/km2). From the available prey biomass, we estimated snow leopards consumed 7% annually, which comprised wild prey (49%), domestic livestock (45%). and 6% unidentified items. the estimated 47,736 kg blue sheep biomass gives a snow leopard-to-blue sheep ratio of 1:59 on a weight basis. The high preference of snow leopard to domestic livestock appears to be influenced by a much smaller available biomass of wild prey then in other regions of Nepal (e.g., 78kg/km2 in the KCA compared with a range of 200-300 kg/km2 in other regions of Nepal?. Along with livestock insurance scheme improvement, there needs to be a focus on improved livestock guarding, predator-proof corrals as well as engaging and educating local people to be citizen scientists on the importance of snow leopard conservation, involving them in long-term monitoring programs and promotion of ecotourism.  
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  Call Number SLN @ rakhee @ Serial 1665  
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Author Thapa, K., Jackson, R., Gurung, L, Acharya, H. B., Gurung, R. K., pdf 
  Title Applying the double observer methodology for assessing blue sheep population size in Nar Phu valley, Annapurna Conservation Area, Nepal Type Journal Article
  Year 2021 Publication Wildlife Biology Abbreviated Journal  
  Volume Issue Pages 1-11  
  Keywords (up) blue sheep, density estimation, double observer counts, Nepal, Panthera uncia, prey abundance, Pseudois nayaur, snow leopard, viewshed mapping  
  Abstract This study was undertaken in spring, 2019 to assess the applicability of the double-observer survey method for estimating blue sheep Pseudois nayaur abundance in Nar-Phu valley of Manang District located in Annapurna Conservation Area of northern Nepal. Since counting large mammals in rugged mountain habitat poses a special challenge, we tested the efficacy of the double observer method for generating robust population estimates for this important protected area. The overall detection probability for observers (O1 and O2) was 0.94 and 0.91 for a total of 106 groups comprised of 2059 individual blue sheep. We estimated the area’s blue sheep population at 2070 (SE ± 168.77; 95% CI 2059–2405) for the 246.2 km2 of sampled habitat. We determined blue sheep to be widely distributed within the study area with a mean density of 8.4 individuals per km2 based on a total study area of 246.2 km2. We discuss demographic population structure and identify limitations when applying the double observer approach, along with recommending viewshed mapping for ensuring more robust density estimates of mountain-dwelling ungulates like blue sheep or ibex that inhabit extremely heterogeneous terrain which strongly influences sighting distances and overall animal detection rates.  
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  Call Number SLN @ rakhee @ Serial 1666  
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Author Kohli, K., Sankaran, M., Suryawanshi, K. R., Mishra, C url 
  Title A penny saved is a penny earned: lean season foraging strategy of an alpine ungulate Type Journal Article
  Year 2014 Publication Animal Behaviour Abbreviated Journal  
  Volume Issue 92 Pages 93-100  
  Keywords (up) blue sheep, grazing, herbivore, mountain ungulate, optimal foraging, Pseudois nayaur, trans-Himalaya  
  Abstract Lean season foraging strategies are critical for the survival of species inhabiting highly seasonal environments

such as alpine regions. However, inferring foraging strategies is often difficult because of

challenges associated with empirically estimating energetic costs and gains of foraging in the field. We

generated qualitative predictions for the relationship between daily winter foraging time, body size and

forage availability for three contrasting foraging strategies including time minimization, energy intake

maximization and net energy maximization. Our model predicts that for animals employing a time

minimization strategy, daily winter foraging time should not change with body size and should increase

with a reduction in forage availability. For energy intake maximization, foraging time should not vary

with either body size or forage availability. In contrast, for a net energy maximization strategy, foraging

time should decrease with increase in body size and with a reduction in forage availability. We contrasted

proportion of daily time spent foraging by bharal, Pseudois nayaur, a dimorphic grazer, across

different body size classes in two high-altitude sites differing in forage availability. Our results indicate

that bharal behave as net energy maximizers during winter. As predicted by the net energy maximization

strategy, daily winter foraging time of bharal declined with increasing body size, and was lower in the

site with low forage availability. Furthermore, as predicted by our model, foraging time declined as the

winter season progressed. We did not find support for the time minimizing or energy intake maximizing

strategies. Our qualitative model uses relative rather than absolute costs and gains of foraging which are

often difficult to estimate in the field. It thus offers a simple way to make informed inferences regarding

animal foraging strategies by contrasting estimates of daily foraging time across gradients of body size

and forage availability.
 
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  Call Number SLN @ rakhee @ Serial 1409  
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Author Mishra, C.; Van Wieren S.; Ketner, P.; Heitkonig, I.; Prins H. url 
  Title Competition between domestic livestock and wild bharal Pseudois nayaur in the Indian Trans-Himalaya Type Journal Article
  Year 2004 Publication Journal of Animal Ecology Abbreviated Journal  
  Volume 73 Issue Pages 344-354  
  Keywords (up) blue sheep,diet,grazing,rangeland,resource,ungulate,wildlife; 5320  
  Abstract 1. The issue of competition between livestock and wild herbivores has remained contentious. We studied the diets and population structures of the mountain ungulate bharal Pseudois nayaur and seven species of livestock to evaluate whether or not they compete for forage. The study was conducted in the high altitude Spiti Valley, Indian Trans-Himalaya.

2. We compared resource (forage) availability and bharal population structures between rangelands differing in livestock density. Forage availability was estimated by clipping the standing graminoid biomass in sample plots. Livestock and bharal population structures were quantified through annual censuses. Seasonal diets of livestock were studied by direct observations, while those of bharal were quantified through feeding

signs on vegetation.

3. We found that livestock grazing causes a significant reduction in the standing crop of forage. Graminoid availability per unit livestock biomass was three times greater in a moderately grazed rangeland compared with an intensively grazed one.

4. There was considerable diet overlap among the herbivore species. In summer, bharal, yak Bos grunniens, horse Equus caballus, cow Bos indicus, and dzomo (yak-cow hybrids) fed predominantly on graminoids, while donkey E. asinus, sheep Ovis aries, and goat Capra hircus, consumed both graminoids and herbs. The summer diet of bharal was a subset of the diets of three livestock species. In winter, depleted graminoid availability caused bharal, yak and horse to consume relatively more herbs, while the remaining livestock species fed predominantly on graminoids. Diet overlap was less in winter but, in both seasons, all important forage species in the bharal diet were consumed

in substantial amounts by one or more species of livestock.

5. Comparison of the population structures of bharal between two rangelands differing in livestock density by

c. 30% yielded evidence of resource competition. In the intensively grazed rangeland, bharal density was 63% lower, and bharal population showed poorer performance (lower young : adult female ratios).

6.Synthesis and applications High diet overlap between livestock and bharal, together with density-dependent forage limitation, results in resource competition and a decline in bharal density. Under the present conditions of high livestock density and supplemental feeding, restricting livestock numbers and creating livestockfree areas are necessary measures for conserving Trans-Himalayan wild herbivores. Mediating competitive effects on bharal through supplemental feeding is not a feasible option.
 
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  Call Number SLN @ rana @ 517 Serial 695  
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Author Shrestha, R.; Wegge, P. url 
  Title Habitat relationships between wild and domestic herbivores in Nepalese trans – Himalaya Type Journal Article
  Year 2008 Publication Journal of Arid Environments Abbreviated Journal  
  Volume 72 Issue Pages 914-925  
  Keywords (up) blue sheep; Competition; domestic; habitat partitioning; naur; Nepal; pastoralism; pseudois nayaur; trans-himalaya  
  Abstract In the semi-arid ecosystems of Asia, where pastoralism is a main subsistence occupation, grazing competition from domestic stock is believed to displace the wild ungulates. We studied the habitat relationships among sympatric naur and domestic yak and smallstock in Phu valley in upper Manang district, Nepal, on the basis of their distribution on vegetation types, elevation and slope. To control for the disturbance effect by humans, we collected the data on naur from those ranges where domestic stock were not being attended by herders. We applied correspondence analysis to explore habitat associations among animal groups (n ¬ 1415) within and across-seasons. Within each association, interspecific habitat overlaps and species habitat preferences were calculated. Naur was strongly associated with free-ranging yak as they used similar altitudinal ranges in all seasons, except in spring. Their distributions on vegetation types and slopes were also quite similar, except for a stronger preference for alpine meadows by naur during summer and winter. Naur and smallstock did not form temporal associations as the latter consistently used lower elevations. In autumn and spring, however, naur spatially overlapped with the summer range of smallstock, and both preferred the alpine meadow habitat during these periods. Alpine meadow was the least abundant vegetation type but was consistently and preferentially used by all animal groups across seasons. At high stocking densities, all three animals groups are therefore likely to compete for this vegetation type. The role of spatio-temporal heterogeneity for interpreting the interspecific relationships among ungulates in the semi-arid rangelands of the trans-Himalaya is discussed.  
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  Call Number SLN @ rana @ 937 Serial 891  
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Author Oli, M.K. url 
  Title Seasonal patterns in habitat use of blue sheep Pseudois nayaur (Artiodactyla, Bovidae) in Nepal Type Journal Article
  Year 1996 Publication Mammalia Abbreviated Journal  
  Volume 60 Issue 2 Pages 187-193  
  Keywords (up) blue-sheep; snow-leopard; Panthera-uncia; Nepal; conservation; prey; predator; snow leopard; blue; sheep; browse; panthera; uncia; 670  
  Abstract Blue sheep (Pseudois nayaur) are the main prey of the endangered snow leopard (Panthera uncia) as well as an important game species in Nepal. A knowledge of how blue sheep utilize their habitat is essential for the scientific management of the sheep and for the conservation of the snow leopard, but we only have a limited understanding of this aspect of blue sheep ecology. I studied the habitat use pattern of blue sheep by direct observation in the Anna-purna Conservation Area, Nepal where they occur sympatrically with the snow leopard. The sheep used grassland habitats more frequently during pre-parturition (spring) and post-parturition (autumn) than other habitat types, but scrub and grassland habitats were used equally frequently during the rut (winter). The sheep used smooth undulating slopes of medium steepness (<40 degrees) on southerly aspects within the elevation range of 4,200-4,600 m most frequently in all seasons, and there was no evidence of seasonal migration along the elevation gradient. When not in broken landforms (e.g., cliff, landslides), the sheep maintained proximity (less than or equal to 150 m) to such features suggesting their importance as escape cover (i.e., from predators). The use of habitat components by blue sheep appeared to be related to the distribution of foraging areas and escape cover.  
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  Notes UNIV EDINBURGH,INST CELL ANIM & POPULAT BIOL,EDINBURGH EH9 3JT,MIDLOTHIAN,SCOTLANDANNAPURNA CONSERVAT AREA PROJECT,KATMANDU,NEPAL /Publisher:MUSEUM NAT HIST NATURELLE, PARIS Document Type: English Approved no  
  Call Number SLN @ rana @ 289 Serial 751  
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