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| Author | Sharma, M., Khanyari, M., Khara, A., Bijoor, A., Mishra, C., Suryawanshi, K. R. | ||||
| Title | Can livestock grazing dampen density-dependent fluctuations in wild herbivore populations? | Type | Journal Article | ||
| Year | 2024 | Publication  |
Journal of Applied Ecology | Abbreviated Journal | |
| Volume | Issue | Pages | 1-12 | ||
| Keywords | competition, Gompertz state-space model, Himalaya, livestock, long-term study, negative density dependence, recruitment | ||||
| Abstract | 1. Conservation policy for the high mountains of Asia increasingly recognises the need to encompass large multi-use landscapes beyond the protected area network. Due to limited long-term research in this region, our understanding of even fundamental processes, such as factors regulating large mammal populations is poor. 2. Understanding the factors that regulate animal populations, especially those generating cyclicity, is a long-standing problem in ecology. Long-term research across multiple taxa (mainly from Europe and North America) has focussed on the relative roles of food and predation in generating cyclicity in population dynamics. It remains unclear how trophic interactions that are influenced by anthropogenic stressors can affect population dynamics in human-modified landscapes. 3. We present a 10-year study to compare the effects of livestock grazing on density-dependent dynamics in two populations of bharal, Pseudois nayaur, in the Himalayas. We combine this with a mechanistic understanding of whether density dependence in these two sites acts predominantly by affecting adult survival or recruitment. We compared and quantified density dependence in the bharal population by fitting Bayesian Gompertz state-space models. 4. We found evidence for negative density dependence which indicates possible cyclic dynamics in the bharal population of the site (Tabo) with low livestock density. The population dynamics of this site were driven by recruited offspring—with a 2-year density-dependent lag effect—rather than adult survival. In the site with high livestock density (Kibber), this density dependence was not detected. We postulate the potential role of excessive grazing by livestock in affecting offspring recruitment, thereby affecting the bharal population in Kibber. 5. Synthesis and applications: Our results suggest that conservation action to facilitate wild herbivore population recovery, such as the development of protected areas and village reserves, needs to account for density-dependent regulation. Sites with trophy hunting require continuous monitoring to understand the effects of density dependence so that appropriate hunting quotas can be formulated. |
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| Notes | Approved | no | |||
| Call Number | SLN @ rakhee @ | Serial | 1747 | ||
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| Author | Rieger, I. | ||||
| Title | Breeding ounces, Uncia uncia (Schreber, 1775) in zoological gardens | Type | Book Chapter | ||
| Year | 1982 | Publication |
International Pedigree Book of Snow Leopards, Vol. 3 | Abbreviated Journal | |
| Volume | 3 | Issue | Pages | 49-50 | |
| Keywords | breeding; captive; International; ounce; pedigree; snow-leopard; snow-leopards; snow leopard; uncia; Uncia-uncia; Uncia uncia; zoo; zoological; zoological-gardens; zoological gardens | ||||
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| Publisher | Helsinki Zoo | Place of Publication | Helsinki | Editor | Blomqvist, L. |
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| Notes | Approved | no | |||
| Call Number | SLN @ rana @ 1038 | Serial | 822 | ||
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| Author | Chetri, M, Odden, M., Sharma, K., Flagstad, O., Wegge, P | ||||
| Title | Estimating snow leopard density using fecal DNA in a large landscape in north-central Nepal | Type | Journal Article | ||
| Year | 2019 | Publication |
Global Ecology and Conservation | Abbreviated Journal | |
| Volume | Issue | 17 | Pages | 1-8 | |
| Keywords | Panthera uncia, Density, Annapurna-Manaslu landscape, Noninvasive, Spatial scale | ||||
| Abstract | Although abundance estimates have a strong bearing on the conservation status of a species, less than 2% of the global snow leopard distribution range has been sampled systematically, mostly in small survey areas. In order to estimate snow leopard density across a large landscape, we collected 347 putative snow leopard scats from 246 transects (490 km) in twenty-six 5 5km sized sampling grid cells within 4393 km2 in Annapurna- Manaslu, Nepal. From 182 confirmed snow leopard scats, 81 were identified as belonging to 34 individuals; the remaining were discarded for their low (<0.625) quality index. Using maximum likelihood based spatial capture recapture analysis, we developed candidate model sets to test effects of various covariates on density and detection of scats on transects. The best models described the variation in density as a quadratic function of elevation and detection as a linear function of topography. The average density estimate of snow leopards for the area of interest within Nepal was 0.95 (SE 0.19) animals per 100 km2 (0.66e1.41 95% CL) with predicted densities varying between 0.1 and 1.9 in different parts, thus highlighting the heterogeneity in densities as a function of habitat types. Our density estimate was low compared to previous estimates from smaller study areas. Probably, estimates from some of these areas were inflated due to locally high abundances in overlap zones (hotspots) of neighboring individuals, whose territories probably range far beyond study area borders. Our results highlight the need for a large-scale approach in snow leopard monitoring, and we recommend that methodological problems related to spatial scale are taken into account in future snow leopard research. |
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| Notes | Approved | no | |||
| Call Number | SLN @ rakhee @ | Serial | 1478 | ||
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| Author | Ming, M.; Munkhtsog, B.; Xu, F.; Turghan, M.; Yin, S.-jing; Wei, S.-D. | ||||
| Title | Markings as Indicator of Snow Leopard in Field Survey, in Xinjiang | Type | Miscellaneous | ||
| Year | 2005 | Publication |
Chinese Journal of Zoology | Abbreviated Journal | |
| Volume | Issue | Pages | 34-39 | ||
| Keywords | markings; marking; snow leopard; leopard; field survey; Xinjiang; Chinese; Uncia uncia; Uncia-uncia; China; Tianshan Mountains; conservation; field work; length; snow leopards; snow-leopards; density; densities; pug; pug marks; marks; scrapes; scrape; feces; scent; spray; Hair; fur; prey; habitat; Habitat selection; selection; distribution; region; relative abundance; abundance; study; areas; knowledge; potential; conservation problems; Human; attitudes; attitude; 200 | ||||
| Abstract | The Snow Leopard (Uncia uncia) was a very rare species in China. The survey on the markings of Snow Leopard in Ahay and Tianshan Mountains is the major activity of the Project of Snow Leopard in Xinjiang, supported by International Snow Leopard Trust(ISLT)and Xinjiang Conservation Fund(XCF). During the field work from Sep to Nov 2004 the Xinjiang Snow Leopard Group(XSLG) set 67 transects of a total length of 47 776 m with mean transect length is 7 1 3 m at 9 locations.Total of 1 l 8 markings of Snow Leopards were found in 27 transects the mean density is 247km. The markings of Snow Leopard included the pug marks or footprints, scrapes, feces, bloodstain, scent spray, urine, hair or fur, claw rake, remains of prey corpse, sleep site, roar and others. From the quantity and locations of marks the XSLG got the information on habitat selection distribution region and relative abundance of the Snow Leopard in the study areas. The survey also provided knowledge on distribution and abundance of major prey potential conservation problems and human attitudes to Snow Leopards by taking 200 questionnaires in the study areas. | ||||
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| Notes | Full text available in Chinese | Approved | no | ||
| Call Number | SLN @ rana @ 875 | Serial | 681 | ||
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| Author | Jackson, R. | ||||
| Title | Linking Snow Leopard Conservation and People-Wildlife Conflict Resolution, Summary of a multi-country project aimed at developing grass-roots measures to protect the endangered snow leopard from herder retribution | Type | Journal Article | ||
| Year | 2000 | Publication |
Cat News | Abbreviated Journal | |
| Volume | 33 | Issue | Pages | 12-15 | |
| Keywords | livestock-depredation; livestock; pastoralists; herders; Pakistan; Nepal; Tibet; Mongolia; India; protected-areas; parks; reserves; refuge; snow-leopard-incentive-program; economics; tourism; pens; corrals; enclosures; trapping; poisoning; killing; cubs; dens; retribution; behavior; predator; prey; Qomolangma; habitat; feces; fecal-analysis; compensation; Dogs; guard-dogs; religion; conservation; browse; depredation; snow; leopard; incentive; program; fecal; analysis; guard; Dog; 4000 | ||||
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| Notes | Full Text at URL | Approved | no | ||
| Call Number | SLN @ rana @ 375 | Serial | 464 | ||
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| Author | Fox, J.L.; Chundawat, R.S. | ||||
| Title | Wolves in the Transhimalayan region of India: The continued survival of a low-density population | Type | Journal Article | ||
| Year | 1995 | Publication |
Canadian Circumpolar Institute Occasional Publication No.35; Ecology and conservation of wolves in a changing world | Abbreviated Journal | |
| Volume | 35 | Issue | Pages | 95-103 | |
| Keywords | Competition; Population-Density; Tibetan-Wolf; Transhimalayan-Region; Wildlife-Management; browse; population; density; tibetan; wolf; wildlife; management; transhimalayan; region; 710 | ||||
| Abstract | Canadian Cirumpolar Institute, University of Alberta, Edmonton, Alberta, Canada/Second North American Symposium on Wolves, Edmonton, Alberta, Canada, August 25-27, 1992 | ||||
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| Notes | Approved | no | |||
| Call Number | SLN @ rana @ 272 | Serial | 306 | ||
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| Author | Sharma, R. K., Sharma, K., Borchers, D., Bhatnagar, Y. V., Suryawanshi, K. S., Mishra, C. | ||||
| Title | Spatial variation in population-density, movement and detectability of snow leopards in 2 a multiple use landscape in Spiti Valley, Trans-Himalaya | Type | Journal Article | ||
| Year | 2020 | Publication |
bioRxiv | Abbreviated Journal | |
| Volume | Issue | Pages | |||
| Keywords | Co-existence; land sharing; population-density; spatial capture recapture; Pseudois nayaur Capra sibirica; ungulates; livestock. | ||||
| Abstract | The endangered snow leopard Panthera uncia occurs in human use landscapes in the mountains of South and Central Asia. Conservationists generally agree that snow leopards must be conserved through a land-sharing approach, rather than land-sparing in the form of strictly protected areas. Effective conservation through land-sharing requires a good understanding of how snow leopards respond to human use of the landscape. Snow leopard density is expected to show spatial variation within a landscape because of variation in the intensity of human use and the quality of habitat. However, snow leopards have been difficult to enumerate and monitor. Variation in the density of snow leopards remains undocumented, and the impact of human use on their populations is poorly understood. We examined spatial variation in snow leopard density in Spiti Valley, an important snow leopard landscape in India, via spatially explicit capture recapture analysis of camera trap data. We camera trapped an area encompassing a minimum convex polygon of 953 km . We estimated an overall density of 0.49 (95% CI: 0.39-0.73) adult snow leopards per 100 km . Using AIC, our best model showed the density of snow leopards to depend on wild prey density, movement about activity centres to depend on altitude, and the expected number of encounters at the activity centre to depend on topography. Models that also used livestock biomass as a density covariate ranked second, but the effect of livestock was weak. Our results highlight the importance of maintaining high density pockets of wild prey populations in multiple use landscapes to enhance snow leopard conservation. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1620 | |||
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| Author | Christiansen, P. | ||||
| Title | Canine morphology in the larger Felidae: implications for feeding ecology | Type | Journal Article | ||
| Year | 2007 | Publication |
Biological Journal of the Linnean Society | Abbreviated Journal | |
| Volume | 91 | Issue | Pages | 573-592 | |
| Keywords | bite force, canine, clouded leopard, feeding behaviour, felid, Homotherium serum, leopard, Megantereoncultridens, morphology, Neofelis nebulosa, paleontology, Panthera pardus, Panthera tigris, puma, Puma concolor, Smilodon fatalis, Smilodon populator, snow leopard, Uncia uncia | ||||
| Abstract | Canine morphology is analysed at seven intervals along the crown in both anteroposterior and lateromedial perspective in seven species of large felids. The puma and the snow leopard have stout, rather conical canines, whereas those of lions, jaguars, and tigers bear substantial resemblance to each other, reflecting their phylogenetic relationships, and are less conical and large. The canines of the leopard are intermediate in morphology between those of the other species, probably reflecting its more generalized diet. The clouded leopard has very large and blade-like canines, which are different from the other analysed species. Canine bending strengths to estimated bite forces appear to differ less among the species than morphology,indicating that the evolution of canines has been constricted with respect to their strength in failure, probably owing to their being equally important for species fitness. However, the clouded leopard again stands out, having a high estimated bite force and rather weak canines in bending about the anteroposterior as well as lateromedial planes compared to the other species. Canine morphology to some extent reflects differences in killing mode, but also appears to be related to the phylogeny. The marked divergence of the clouded leopard is presently not understood. |
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| Language | English | Summary Language | Original Title | ||
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| Notes | Approved | no | |||
| Call Number | SLN @ rana @ | Serial | 1115 | ||
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| Author | Alexander, S., A., Zhang, C., Shi, K., Riordan, P. | ||||
| Title | A granular view of a snow leopard population using camera traps in Central China | Type | Journal Article | ||
| Year | 2016 | Publication |
Biological Conservation | Abbreviated Journal | |
| Volume | Issue | 197 | Pages | 27-31 | |
| Keywords | Snow leopard Camera trap China Density Monitoring | ||||
| Abstract | Successful conservation of the endangered snow leopard (Panthera uncia) relies on the effectiveness of monitoring programmes. We present the results of a 19-month camera trap survey effort, conducted as part of a longterm study of the snow leopard population in Qilianshan National Nature Reserve of Gansu Province, China. Weassessed the minimumnumber of individual snowleopards and population density across different sampling periods using spatial capture–recapture methods. Between 2013–2014, we deployed 34 camera traps across an area of 375 km2, investing a total of 7133 trap-days effort. Weidentified a total number of 17–19 unique individuals from photographs (10–12 adults, five sub-adults and two cubs). The total number of individuals identified and estimated density varied across sampling periods, between 10–15 individuals and 1.46–3.29 snow leopards per 100 km2 respectively. We demonstrate that snow leopard surveys of limited scale and conducted over short sampling periods only present partial views of a dynamic and transient system.We also underline the challenges in achieving a sufficient sample size of captures and recaptures to assess trends in snow leopard population size and/or density for policy and conservation decision-making |
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| Notes | Approved | no | |||
| Call Number | SLN @ rakhee @ | Serial | 1436 | ||
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| Author | Zhang, L., Lian, X., Yang, X | ||||
| Title | Population density of snow leopards (Panthera Uncia) in the Yage Valley Region of the Sanjiangyuan National Park: Conservation Implications and future directions | Type | Journal Article | ||
| Year | 2020 | Publication |
Artic, Antartic and Alpine Research | Abbreviated Journal | |
| Volume | 52 | Issue | 1 | Pages | 541-550 |
| Keywords | Snow leopard; population density; camera trapping; Tibetan Plateau; alpine ecosystem | ||||
| Abstract | 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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| Notes | Approved | no | |||
| Call Number | Serial | 1619 | |||
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