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Atzeni, L., Wang, J., Riordan, P., Shi, K., Cushman, S. A. |
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Title |
Landscape resistance to gene flow in a snow leopard population from Qilianshan National Park, Gansu, China |
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2023 |
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Landscape Ecology |
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Landscape genetics · MLPE · Gene flow · Genetic distance · Isolation by distance · Isolation by resistance · Landscape resistance · Snow leopard · Principal component analysis |
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Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Context: The accurate estimation of landscape resistance to movement is important for ecological understanding and conservation applications. Rigorous estimation of resistance requires validation and optimization. One approach uses genetic data for the optimization or validation of resistance models. Objectives We used a genetic dataset of snow leopards from China to evaluate how landscape genetics resistance models varied across genetic distances and spatial scales of analysis. We evaluated whether landscape genetics models were superior to models of resistance derived from habitat suitability or isolation-by-distance.
Methods: We regressed genetically optimized, habitat-based, and isolation-by-distance hypotheses against genetic distances using mixed effect models. We explored all subset combinations of genetically optimized variables to find the most supported resistance scenario for each genetic distance.
Results: Genetically optimized models always out-performed habitat-based and isolation-by-distance hypotheses. The choice of genetic distances influenced the apparent influence of variables, their spatial scales and their functional response shapes, producing divergent resistance scenarios. Gene flow in snow leopards was largely facilitated by areas of intermediate ruggedness at intermediate elevations corresponding to small-to-large valleys within and between the mountain ranges.
Conclusions: This study highlights that landscape genetics models provide superior estimation of functional dispersal than habitat surrogates and suggests that optimization of genetic distance should be included as an optimization routine in landscape genetics, along with variables, scales, effect size and functional response shape. Furthermore, our study provides new insights on the ecological conditions that promote gene flow in snow leopards, which expands ecological knowledge, and we hope will improve conservation planning. |
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SLN @ rakhee @ |
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1720 |
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Author |
Esipov A.V. |
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Title |
Snow Leopard (Irbis) |
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Miscellaneous |
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2003 |
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Vol. II. Animals. |
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218-219 |
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Uzbekistan; Red Data book; category of threat; number; distribution; threats; snow leopard.; 6650; Russian |
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Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Critically Endangered l (CR C2a(i); D), locally distributed western subspecies of Central Asian species. It occurs in Western Tien Shan and Western Pamir Alay. It inhabits middle and high belts of the mountains. It prefers watersheds and rocky talus slopes. It never was numerous; last decades the numbers have been decreasing. In 1980's-1990's in Hissar nature reserve 5-11 individuals were counted, in 1970's-1980's in Chatkal nature reserve the 1-3 specimens were observed. Perhaps, total number is 20-30 individuals. The threats are development of high mountain pastures, decreasing of prey numbers, human persecution and poaching. Included in the IUCN Red List [EN] and in Appendix I of CITES. |
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Full text available in RussianJournal Title: Red Data Book of Republic of Uzbekistan. |
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SLN @ rana @ 643 |
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259 |
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Zheleznyakov D.F. |
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Order Predators |
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Miscellaneous |
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1958 |
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Edition 1. |
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110-112 |
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Uzbekistan; Chatkal nature reserve; mammals; snow leopard.; 8720; Russian |
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Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Data about distribution of stone marten, ermine, weasel, badger, bear, wolf, fox, and snow leopard in the Chatkal nature reserve is provided. In Tien Shan, snow leopard is not a rare species, and even a rather common species in some places. In the nature reserve, snow leopard was observed near the mountain Kurgan-Tash in 1948. |
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Full text available in RussianJournal Title: Proceeding of the mountain-forest state nature reserve. |
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SLN @ rana @ 849 |
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1076 |
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Author |
Korelov M.N. |
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The vertebrates of Bostandyk region |
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1956 |
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269, 314 |
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Western Tien Shan; fauna; snow leopard; distribution.; 7230; Russian |
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Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Data about faunistic complexes of Bostandyk region is provided. Snow leopard inhabited in high mountains of Chatkal, Pskem and Ugam ridges. The tracks of irbis were recorded in the snowfield near the edge of Pskem ridge (upper Ichnach-say river). |
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Full text available in RussianJournal Title: Nature and economic conditions in the mountain part of Bostandyk. |
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SLN @ rana @ 701 |
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550 |
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Lesnyak A.P. |
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Cats in Uzbekistan's fur trade |
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Miscellaneous |
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1984 |
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57-64 |
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Uzbekistan; rare species; Cats; species range; diet; hunting; pelts; poaching; snow leopard.; 7580; Russian |
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Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Data of distribution, food, and fur trade of Felidae (North Persian leopard, snow leopard, caracal, Turkestan lynx, manul, Turkestan steppe cat, jungle cat [chaus], sand cat) in Uzbekistan is given. Snow leopard is an object of illegal hunting. |
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Full text available in RussianJournal Title: Hunting and nature protection in Uzbekistan. |
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SLN @ rana @ 736 |
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615 |
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Aromov, B. |
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Title |
Snow Leopard (Uncia uncia) in Hissar Nature Reserve |
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Miscellaneous |
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2001 |
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Issue 3 |
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121-125 |
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Uzbekistan; snow leopard; Hissar ridge; Hissar nature reserve; number; population estimate; diet; wild ibex; livestock; rut; cubs; competitors.; 6080; Russian |
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Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Data on distribution, number, diet and breeding of snow leopard in NW spurs of the Hissar Ridge were collected over long-term studies in the span from 1981 to 1994. An increase in the number of this animal from 4 to 17 individuals has been recorded in the Hissar Nature Reserve (Uzbekistan). |
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Full text available in RussianJournal Title: Proceeding of Nature Reserves in Uzbekistan. |
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SLN @ rana @ 587 |
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100 |
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Kolbintsev V.G. |
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Title |
Modern status of endangered vertebrates in Aksu Jabagly nature reserve |
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Miscellaneous |
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2001 |
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Vol.8. |
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139-140 |
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Kazakhstan; Aksu Jabagly nature reserve; endangered vertebrates; number; snow leopard.; 7180; Russian |
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Data on number of several endangered vertebrates inhabiting in Aksu Jabagly nature reserve in 1990-2000 are given. Number of snow leopard is rather stable and evaluated as 2-3 pairs. |
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Full text available in RussianJournal Title: Biodiversity of W Tien Shan (Kazakhstan). Proceedings of Aksu Jabagly State nature reserve. |
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SLN @ rana @ 696 |
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544 |
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Kitchener, S.L., Merritt, D.A., Rosenthal, M.A. |
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Observations on the management, physiology, and hand rearing of snow leopards (Panthera uncia) at Lincoln Park Zoo, Chicago, from 1960-1974 |
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1974 |
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snow leopard, captivity, Lincoln Park Zoo, Chicago, management, physiology, hand rearing, birth |
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Data on the 28 snow leopards born at the zoo in a 13 year period. |
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English |
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SLN @ rana @ |
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1226 |
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Suryawanshi, K.R. |
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Towards snow leopard prey recovery: understanding the resource use strategies and demographic responses of bharal Pseudois nayaur to livestock grazing and removal; Final project report |
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2009 |
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1-43 |
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project; snow; snow leopard; snow-leopard; leopard; network; conservation; program; prey; recovery; resource; use; strategy; demographic; Response; bharal; Pseudois; pseudois nayaur; Pseudois-nayaur; nayaur; livestock; grazing; Report; decline; wild; populations; population; Himalayan; region; Competition; threats; threat; uncia; Uncia uncia; Uncia-uncia; study; diet; winter; Test; browse; nutrition; areas; area; young; Female; times; High; Adult; mortality; species; predators; predator; endangered; trans-himalaya; transhimalaya |
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Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Decline of wild prey populations in the Himalayan region, largely due to competition with livestock, has been identified as one of the main threats to the snow leopard Uncia uncia. Studies show that bharal Pseudois nayaur diet is dominated by graminoids during summer, but the proportion of graminoids declines in winter. We explore the causes for the decline of graminoids from bharal winter diet and resulting implications for bharal conservation. We test the predictions generated by two alternative hypotheses, (H1) low graminoid availability caused by livestock grazing during winter causes bharal to include browse in their diet, and, (H2) bharal include browse, with relatively higher nutrition, to compensate for the poor quality of graminoids during winter. Graminoid availability was highest in areas without livestock grazing, followed by areas with moderate and intense livestock grazing. Graminoid quality in winter was relatively lower than that of browse, but the difference was not statistically significant. Bharal diet was dominated by graminoids in areas with highest graminoid availability. Graminoid contribution to bharal diet declined monotonically with a decline in graminoid availability. Bharal young to female ratio was three times higher in areas with high graminoid availability than areas with low graminoid availability. No starvation-related adult mortalities were observed in any of the areas. Composition of bharal winter diet was governed predominantly by the availability of graminoids in the rangelands. Since livestock grazing reduces graminoid availability, creation of livestock free areas is necessary for conservation of grazing species such as the bharal and its predators such as the endangered snow leopard in the Trans-Himalaya. |
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Project funded by Snow Leopard Network's Snow Leopard Conservation Grant Program, 2008. Nature Conservation Foundation, Mysore. Post-graduate Program in Wildlife Biology and Conservation, National Centre for Biological Sciences, Wildlife Conservation Society -India program, Bangalore, India. |
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SLN @ rana @ 1077 |
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952 |
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Weiskopf, S. R., Kachel, S. M., McCarthy, K. P. |
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Title |
What Are Snow Leopards Really Eating? Identifying Bias in Food-Habit Studies |
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2016 |
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Wildlife Society Bulletin |
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1-8 |
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diet, DNA genotyping, feces, Panthera uncia, scat, snow leopard. Lack of |
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Abstract ![sorted by Abstract field, ascending order (up)](img/sort_asc.gif) |
Declining prey populations are widely recognized as a primary threat to snow leopard (Panthera
uncia) populations throughout their range. Effective snow leopard conservation will depend upon reliable
knowledge of food habits. Unfortunately, past food-habit studies may be biased by inclusion of nontarget
species in fecal analysis, potentially misinforming managers about snow leopard prey requirements.
Differentiation between snow leopard and sympatric carnivore scat is now cost-effective and reliable using
genetics. We used fecal mitochondrial DNA sequencing to identify scat depositors and assessment bias in
snow leopard food-habit studies. We compared presumed, via field identification, and genetically confirmed
snow leopard scats collected during 2005 and 2012 from 4 sites in Central Asia, using standard forensic
microscopy to identify prey species. Field identification success varied across study sites, ranging from 21% to
64% genetically confirmed snow leopard scats. Our results confirm the importance of large ungulate prey for
snow leopards. Studies that fail to account for potentially commonplace misidentification of snow leopard
scat may mistakenly include a large percentage of scats originating from other carnivores and report
inaccurate dietary assessments. Relying on field identification of scats led to overestimation of percent
occurrence, biomass, and number of small mammals consumed, but underestimated values of these measures for large ungulates in snow leopard diet. This clarification suggests that the conservation value of secondary prey, such as marmots (Marmota spp.) and other small mammals, may be overstated in the literature; stable snow leopard populations are perhaps more reliant upon large ungulate prey than previously understood. |
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1445 |
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