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Bohnett, E., Holmberg, J., Faryabi, S. P., An, L., Ahmad, B., Rashid, W., Ostrowski, S. (2023). Comparison of two individual identification algorithms for snow leopards (Panthera uncia) after automated detection. Ecological Informatics, 77(102214), 1–14.
Abstract: Photo-identification of individual snow leopards (Panthera uncia) is the primary data source for density estimation via capture-recapture statistical methods. To identify individual snow leopards in camera trap imagery, it is necessary to match individuals from a large number of images from multiple cameras and historical catalogues, which is both time-consuming and costly. The camouflaged snow leopards also make it difficult for machine learning to classify photos, as they blend in so well with the surrounding mountain environment, rendering applicable software solutions unavailable for the species. To potentially make snow leopard individual identification available via an artificial intelligence (AI) software interface, we first trained and evaluated image classification techniques for a convolutional neural network, pose invariant embeddings (PIE) (a triplet loss network), and compared the accuracy of PIE to that of the HotSpotter algorithm (a SIFT-based algorithm). Data were acquired from a curated library of free-ranging snow leopards taken in Afghanistan between 2012 and 2019 and from captive animals in zoos in Finland, Sweden, Germany, and the United States. We discovered several flaws in the initial PIE model, such as a small amount of background matching, that was addressed, albeit likely not fixed, using background subtraction (BGS) and left-right mirroring (LR) techniques which demonstrated reasonable accuracy (Rank 1: 74% Rank-5: 92%) comparable to the Hotspotter results (Rank 1: 74% Rank 2: 84%)The PIE BGS LR model, in conjunction with Hotspotter, yielded the following results: Rank-1: 85%, Rank-5: 95%, Rank-20: 99%. In general, our findings indicate that PIE BGS LR, in conjunction with HotSpotter, can classify snow leopards more accurately than using either algorithm alone.
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Dawa, T., Farrington, J., Norbu, K. (2007). Competition and Coexistence: Human-Wildlife Conflict in the Chang Tang Region of Tibet. Lhasa, Tibet Autonomous Region, China: Tibet People’s Publishing House.
Abstract: In Chinese and English.
Note: this is a slightly expanded book version of the following report with a full Chinese translation: Tsering Dawa, John D. Farrington, and Kelsang Norbu. Human-wildlife Conflict in the Chang Tang Region of Tibet: The Impact of Tibetan Brown Bears and other Wildlife on Nomadic Herders with Recommendations for Conflict Mitigation. Lhasa, Tibet Autonomous Region, China: WWF China-Lhasa Field Office, 2006.
The multiple-use Chang Tang and Seling Lake Nature Reserves were created in 1993 to protect the unique assemblage of large fauna inhabiting the high-altitude steppe grasslands of northern Tibet, including the Tibetan antelope, Tibetan wild ass, Tibetan brown bear, Tibetan Gazelle, wild yak, and snow leopard. Prior to creation of the reserve, many of these species were heavily hunted for meat and sale of parts. Since creation of the reserve, however, killing of wildlife by subsistence hunters and commercial poachers has declined while in the past five years a new problem has emerged, that of human-wildlife conflict. With human, livestock, and wildlife populations in the reserves all increasing, and animals apparently emboldened by reserve-wide hunting bans, all forms of human-wildlife conflict have surged rapidly since 2001. This conflict takes on four primary forms in the Chang Tang region: 1)killing of domestic livestock in corrals and on open pastures by Tibetan brown bears, snow leopards, and other predators, 2) Tibetan brown bears badly damaging herders’ cabins and tents in search of food, 3) loss of important grass resources to large herds of widely migrating wild ungulates, particularly the Tibetan wild ass, possibly leading to winter starvation of livestock, 4) driving off of domestic female yaks by wild yak bulls in search of harems.
In April of 2006, the authors conducted a wildlife conflict survey of 300 herding households in Nagchu Prefecture’s Shenzha, Tsonyi, and Nyima Counties. Results showed that the 87 percent of households had experienced some form of wildlife conflict since 1990. The Tibetan brown bear was the largest source of wildlife conflict, affecting 49 percent of surveyed households, followed by grazing competition conflict which affected 36 percent of surveyed households, and snow leopard conflict which affected 24 percent of surveyed households. Type and frequency of wildlife conflict problems cut across all three surveyed socio-economic factors, residence type, size of living group, and economic status/herd size, and was primarily a function of location. A break down of incidences of human-wildlife conflict into three 5 to 6-year time periods between January 1990 and April 2006 revealed dramatic increases in conflict occurring since 2001. When compared to the 1990-1995 period, the incidence of conflict today ranged from 2.6 times higher for fox conflict to 5.5 times higher for conflict with snow leopards, while there was a 4.6 fold increase in the occurrence of bear conflict. From second-hand accounts and wildlife remains confiscated from herders, it is now believed that retaliatory killing of wildlife rivals commercial poaching as the greatest threat to the continued existence of the Chang Tang region's large fauna. Human-wildlife conflict reduction strategies and wildlife conservation education programs must be devised and implemented in order to halt the retaliatory killing of wildlife by nomadic herders in the Chang Tang.
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Mishra, C., Van Wieren S., Ketner, P., Heitkonig, I., & Prins H. (2004). Competition between domestic livestock and wild bharal Pseudois nayaur in the Indian Trans-Himalaya. Journal of Animal Ecology, 73, 344–354.
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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Ashraf, N. (2010). Competition For Food Between Markhor And Domestic Goat In Chitral, Pakistan. Master's thesis, , Pakistan.
Abstract: The present study was, therefore, designed to collect data on feeding aspects of Markhor and domestic goat in Chitral area, in order to examine the extent of resource competition between two species. The objectives of study were;
To analyze the food composition of Markhor and domestic goat.
To determine the degree of competition between Markhor and domestic goat in terms of forage consumption.
To provide recommendation for managing Markhor habitat and reducing competition with domestic livestock.
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Abdunazarov, B. B. (1990). Composition and numbers of the rare terrestrial vertebrates and prospects of their preservation in Uzbekistan. Nature reserves in the USSR: Their present and future..
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Abdunazarov B.B. (1990). Composition, structure and population of rare terrene vertebrate animals and their conservation perspectives in the nature reserves of Uzbekistan.
Abstract: An attempt of analyzing the role of Uzbekistan' nature reserves in conservation of gene pool of the rare and endangered terrene vertebrate fauna is done. Of 21 rare vertebrate species, 11 mammal species, eight nesting bird species and two reptile species were detected to inhabit seven nature reserves. This makes up 36.2 percent within the total number of species included in the Red Data Book of the Uzbek SSR or 3.7 percent of the country's fauna. Single snow leopards were found in the Chatkal and Hissar nature reserves. Data of the species inhabiting the Zaamin nature reserve needs to be verified.
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Heinen, J. T., & Metha, J. C. (1999). Conceptual and legal issues in the designation and management of conservation areas in Nepal. Environmental Conservation, 26, 21–29.
Abstract: The modern era of wildlife and protected area conservation in Nepal began in 1973 with the passage of comprehensive legislation, and has evolved very quickly as new priorities and problems have emerged. Here we explore the legal and managerial development of conservation areas, a recently-defined category of protected area designed to promote conservation through local-level participation and development. A review of the Conservation Area Management Regulations of 1996 shows that there are several potential problems inherent in this designation. As written, the regulations move power from the government to organizations under governmental contract. Thus, management authority largely remains top-down from the standpoint of local users. We also question how well the designation will protect some sensitive wildlife species, since organizations do not have law enforcement authority under Nepalese legislation.
Despite these concerns, there have been several successful conservation area programmes in existence in Nepal since the 1980s and most of the issues addressed are surmountable with the current regulations, providing that several criteria are met. We propose that His Majesty's Government and organizations under contract develop more definitive methods of disbursing funds for local-level projects, and institute social impact assessments. In addition, more attention must be paid to wildlife law enforcement; independent assessments of important wild populations and unique habitats are needed. Finally, we discuss some broader issues that should be better addressed in Nepal and elsewhere, including cross-sectoral coordination within the government.
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Dawa, T., Farrington, J. (2008). Conflict between nomadic herders and brown bears in the Byang thang Region of Tibet. Journal of the International Association of Tibetan Studies, 4(December), 1–42.
Abstract: Article covers the human-brown bear conflict problem, which closely parallels that of snow leopard conflict in the TAR, the peer reviewed version of: Tsering, Dawa, John D. Farrington, and Kelsang Norbu. Competition and Coexistence: Human-Wildlife Conflict in the Chang Tang Region of Tibet. Lhasa, Tibet Autonomous Region, China: Tibet People’s Publishing House, 2007.
In order to evaluate the impact of recently introduced wildlife conservation policies, a human-wildlife conflict survey of three-hundred herding households was conducted in the south-central Byang thang (Qiangtang) area of the Tibet Autonomous Region (bod rang skyongs ljongs, Xizang Zizhi Qu). Results showed that Tibetan brown bears were the largest source of human-wildlife conflict in the survey area, affecting 49 percent of surveyed households between 1990 and 2006, with a 4.5-fold increase in conflict with bears occurring since implementation of various wildlife protection policies beginning in 1993. Types of bear conflict included livestock kills, raiding of human food supplies, damage to dwellings and furnishings, and direct attacks on herders. Brown bears have caused devastating
economic losses to herders and anecdotal evidence indicates that retaliatory killing of bears by herders now poses the greatest threat to the Tibetan brown bear. Immediate measures must be taken to resolve this conflict if humans and brown
bears are to coexist in the Byang thang region.
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Fox, J. L. (1997). Conflict between predators and people in Ladakh. Cat News, 17, 18.
Abstract: During a six-week period in Hemis National Park, Ladakh, India, snow leopards killed 10 sheep and goats and one leopard gained access to a livestock pen and killed many of the animals inside. Dholes also killed sheep and goats, and a wolf killed a young horse. Residents routinely remove snow leopard cubs from their dens to limit future damage by this species. How to deal with the plight of the people living in the area while still protecting the endangered species are major concerns of the International Snow Leopard Trust, which manages Hemis National Park. lgh.
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Bagchi, S., Mishra, C., & Bhatnagar, Y. (2004). Conflicts between traditional pastoralism and conservation of Himalayan ibex (Capra sibirica) in the Trans-Himalayan mountains. Animal Conservation, 7, 121–128.
Abstract: There is recent evidence to suggest that domestic livestock deplete the density and diversity of wild herbivores in the cold deserts of the Trans-Himalaya by imposing resource limitations. To ascertain the degree and nature of threats faced by Himalayan ibex (Capra sibirica) from seven livestock species, we studied their resource use patterns over space, habitat and food dimensions in the pastures of Pin Valley National Park in the Spiti region of the Indian Himalaya. Species diet profiles were obtained by direct observations. We assessed the similarity in habitat use and diets of ibex and livestock using Non-Metric Multidimensional Scaling. We estimated the influence of the spatial distribution of livestock on habitat and diet choice of ibex by examining their co-occurrence patterns in cells overlaid on the pastures. The observed co-occurrence of ibex and livestock in cells was compared with null-models generated through Monte Carlo simulations. The results suggest that goats and sheep impose resource limitations on ibex and exclude them from certain pastures. In the remaining suitable habitat, ibex share forage with horses. Ibex remained relatively unaffected by other livestock such as yaks, donkeys and cattle. However, most livestock removed large amounts of forage from the pastures (nearly 250 kg of dry matter/day by certain species), thereby reducing forage availability for ibex. Pertinent conservation issues are discussed in the light of multiple-use of parks and current socio-economic transitions in the region, which call for integrating social and ecological feedback into management planning.
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