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Author Johansson, O., Kachel, S., Weckworth, B.
Title Guidelines for Telemetry Studies on Snow Leopards Type Journal Article
Year 2022 Publication Animals Abbreviated Journal
Volume 12 Issue 1663 Pages 1-12
Keywords animal welfare; capture; collar; felid; GPS; immobilization; Panthera uncia; trapping
Abstract (up) Animal-borne tracking devices have generated a wealth of new knowledge, allowing us to better understand, manage and conserve species. Fitting such tracking devices requires that animals are captured and often chemically immobilized. Such procedures cause stress and involve the risk of injuries and loss of life even in healthy individuals. For telemetry studies to be justifiable, it is vital that capture operations are planned and executed in an efficient and ethical way. Project objectives must be clearly articulated to address well-defined knowledge gaps, and studies designed to maximize the probability of achieving those goals. We provide guidelines for how to plan, design, and implement telemetry studies with a special emphasis on snow leopards that are typically captured using foot snares. We also describe the necessary steps to ensure that captures are conducted safely, and with minimal stress to animals.
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Call Number SLN @ rakhee @ Serial 1712
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Author Johansson, O., Rauset, G. R., Samelius, G., McCarthy, T., Andren, H., Tumursukh, L., Mishra, C.
Title Land sharing is essential for snow leopard conservation Type Journal Article
Year 2016 Publication Biological Conservation Abbreviated Journal
Volume Issue 203 Pages 1-7
Keywords Home range, LoCoH, Mongolia, Panthera uncial, Protected areas, Land sparing
Abstract (up) Conserving large carnivores in an increasingly crowded planet raises difficult challenges. A recurring debate is whether large carnivores can be conserved in human used landscapes (land sharing) or whether they require specially designated areas (land sparing). Here we show that 40% of the 170 protected areas in the global range of the snow leopard (Panthera uncia) are smaller than the home range of a single adult male and only 4– 13% are large enough for a 90% probability of containing 15 or more adult females. We used data from 16 snow leopards equipped with GPS collars in the Tost Mountains of South Gobi, Mongolia, to calculate home range size and overlap using three different estimators: minimum convex polygons (MCP), kernel utility distributions (Kernel), and local convex hulls (LoCoH). Local convex hull home ranges were smaller and included lower proportions of unused habitats compared to home ranges based on minimum convex polygons and Kernels. Intra-sexual home range overlapwas low, especially for adult males, suggesting that snowleopards are territorial. Mean home range size based on the LoCoH estimates was 207 km2 ± 63 SD for adult males and 124 km2 ± 41 SD for adult females. Our estimates were 6–44 times larger than earlier estimates based on VHF technology when comparing similar estimators, i.e. MCP. Our study illustrates that protected areas alone will not be able to conserve predatorswith large home ranges and conservationists and managers should not restrict their efforts to land sparing.
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Call Number SLN @ rakhee @ Serial 1446
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Author Ulziibadrakh, T., Uudus, B., Lkhagvajav, P., Alexander, J. S., Johansson, O., Sharma, K., Samelius, G.
Title Variation in plant composition along a gradient of increasing distance from wells in a mountain steppe in southern Mongolia Type Journal Article
Year 2023 Publication Snow Leopard Reports Abbreviated Journal
Volume Issue Pages 10-16
Keywords desert steppe, livestock grazing, plant composition, South Gobi
Abstract (up) Habitat degradation and heavy grazing by livestock are common conservation challenges across the steppes of Mongolia and Central Asia. Livestock grazing patterns are generally not uniform and are typically greater near campsites and watering holes. In this study, we examined how plant composition in a mountain steppe in southern Mongolia varied along a gradient of increasing distance from wells. We found that the cover and average height of Ephedra prezewalskii increased with increasing distance from the wells whereas soil chemistry and the other variables of plant composition that we examined were similar along the gradient of increasing distance from the wells. These results suggest relatively limited impact of livestock grazing on plant composition in our study. However, our study was limited in space and time and further studies are needed to understand the impact of livestock grazing in this mountain steppe in southern Mongolia.
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Call Number SLN @ rakhee @ Serial 1731
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Author Samelius, G., Suryawanshi, K., Frank, J., Agvaantseren, B., Baasandamba, E., Mijiddorj, T., Johansson, O., Tumursukh, L., Mishra, C.
Title Keeping predators out: testing fences to reduce livestock depredation at night-time corrals Type Journal Article
Year 2020 Publication Oryx Abbreviated Journal
Volume Issue Pages 1-7
Keywords Canis lupus, carnivore conservation, coexistence, conflict mitigation, conservation conflict, livestock depreda- tion, Panthera uncia, preventative measure
Abstract (up) Livestock depredation by large carnivores is a global conservation challenge, and mitigation measures to reduce livestock losses are crucial for the coexistence of large carnivores and people. Various measures are employed to reduce livestock depredation but their effectiveness has rarely been tested. In this study, we tested the effectiveness of tall fences to reduce livestock losses to snow leopards Panthera uncia and wolves Canis lupus at night-time corrals at the winter camps of livestock herders in the Tost Mountains in southern Mongolia. Self-reported livestock losses at the fenced corrals were reduced from a mean loss of 3.9 goats and sheep per family and winter prior to the study to zero losses in the two winters of the study. In contrast, self-reported livestock losses in winter pastures, and during the rest of the year, when herders used different camps, remained high, which indicates that livestock losses were reduced because of the fences, not because of temporal variation in predation pressure. Herder attitudes towards snow leopards were positive and remained positive during the study, whereas attitudes towards wolves, which attacked livestock also in summer when herders moved out on the steppes, were negative and worsened during the study. This study showed that tall fences can be very effective at reducing night-time losses at corrals and we conclude that fences can be an important tool for snow leopard conservation and for facilitating the coexistence of snow leopards and people.
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Call Number SLN @ rakhee @ Serial 1492
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Author Tallian, A., Mattisson, J., Samelius, G., Odden, J., Mishra, C., Linnell, J. D. C., Lkhagvajav, P., Johansson, O.
Title Wild versus domestic prey: Variation in the kill-site behavior of two large felids Type Journal Article
Year 2023 Publication Global Ecology and Conservation Abbreviated Journal
Volume 47 Issue e026750 Pages 1-13
Keywords Eurasian lynx, Handling time, Landscape, Livestock, Predation, Snow leopard
Abstract (up) Livestock depredation is an important source of conflict for many terrestrial large carnivore

species. Understanding the foraging behavior of large carnivores on domestic prey is therefore

important for both mitigating conflict and conserving threatened carnivore populations. Handling

time is an important, albeit often overlooked, component of predatory behavior, as it directly

influences access to food biomass, which can affect predator foraging efficiency and subsequent

kill rates. We used long-term data on snow leopards (Panthera uncia) in Mongolia (Asia) and

Eurasian lynx (Lynx lynx) in Norway (Europe) to examine how large carnivore foraging patterns

varied between domestic and wild prey, and how the different landscape characteristics affected

those patterns. Our results suggest handling time was generally shorter for domestic compared to

wild prey. For snow leopards, rugged terrain was linked to increased handling time for larger

prey. For lynx, handling time increased with terrain ruggedness for domestic, but not wild, prey,

and was greater in closed compared to open habitats. There were also other differences in snow

leopard and lynx foraging behavior, e.g., snow leopards also stayed longer at, and remained closer

to, their kill sites than lynx. Shorter handling time suggests that felids may have utilized domestic

prey less effectively than wild prey, i.e., they spent less time consuming their prey. This could a)

result in an energetic or fitness cost related to decreased felid foraging efficiency caused by the

risk of anthropogenic disturbance, or b) exacerbate conflict if reduced handling time associated

with easy prey results in increased livestock depredation.
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Call Number SLN @ rakhee @ Serial 1737
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Author Johansson, O., McCarthy, T., Samelius, G., Andren, H., Tumursukh, L., Mishra, C.
Title Snow leopard predation in a livestock dominated landscape in Mongolia Type Journal Article
Year 2015 Publication Biological Conservation Abbreviated Journal
Volume 184 Issue Pages 251-258
Keywords Gobi desert, GPS collar, Kill rate, Panthera uncial, Prey choice, Wildlife conflict
Abstract (up) Livestock predation is an important cause of endangerment of the snow leopard (Panthera uncia) across

its range. Yet, detailed information on individual and spatio-temporal variation in predation patterns of

snow leopards and their kill rates of livestock and wild ungulates are lacking.

We collared 19 snow leopards in the Tost Mountains, Mongolia, and searched clusters of GPS positions

to identify prey remains and estimate kill rate and prey choice.

Snow leopards killed, on average, one ungulate every 8 days, which included more wild prey (73%) than

livestock (27%), despite livestock abundance being at least one order of magnitude higher. Predation on

herded livestock occurred mainly on stragglers and in rugged areas where animals are out of sight of herders.

The two wild ungulates, ibex (Capra ibex) and argali (Ovis ammon), were killed in proportion to their

relative abundance. Predation patterns changed with spatial (wild ungulates) and seasonal (livestock)

changes in prey abundance. Adult male snow leopards killed larger prey and 2–6 times more livestock

compared to females and young males. Kill rates were considerably higher than previous scat-based estimates, and kill rates of females were higher than kill rates of males. We suggest that (i) snow leopards

prey largely on wild ungulates and kill livestock opportunistically, (ii) retaliatory killing by livestock herders

is likely to cause greater mortality of adult male snow leopards compared to females and young

males, and (iii) total off-take of prey by a snow leopard population is likely to be much higher than previous

estimates suggest.
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Notes Approved no
Call Number SLN @ rakhee @ Serial 1420
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Author Sharma, K., Bayrakcismith, R., Tumursukh, L., Johansson, O., Sevger, P., McCarthy, T., Mishra, C.
Title Vigorous Dynamics Underlie a Stable Population of the Endangered Snow Leopard Panthera uncia in Tost Mountains, South Gobi, Mongolia Type Journal Article
Year 2014 Publication Plos One Abbreviated Journal
Volume 9 Issue 7 Pages
Keywords
Abstract (up) Population monitoring programmes and estimation of vital rates are key to understanding the mechanisms of population growth, decline or stability, and are important for effective conservation action. We report, for the first time, the population trends and vital rates of the endangered snow leopard based on camera trapping over four years in the Tost Mountains, South Gobi, Mongolia. We used robust design multi-season mark-recapture analysis to estimate the trends in abundance, sex ratio, survival probability and the probability of temporary emigration and immigration for adult and young snow leopards. The snow leopard population remained constant over most of the study period, with no apparent growth (l = 1.08+20.25). Comparison of model results with the ‘‘known population’’ of radio-collared snow leopards suggested

high accuracy in our estimates. Although seemingly stable, vigorous underlying dynamics were evident in this population, with the adult sex ratio shifting from being male-biased to female-biased (1.67 to 0.38 males per female) during the study. Adult survival probability was 0.82 (SE+20.08) and that of young was 0.83 (SE+20.15) and 0.77 (SE +20.2) respectively, before and after the age of 2 years. Young snow leopards showed a high probability of temporary emigration and immigration (0.6, SE +20.19 and 0.68, SE +20.32 before and after the age of 2 years) though not the adults (0.02 SE+20.07). While the current female-bias in the population and the number of cubs born each year seemingly render the study population safe, the vigorous dynamics suggests that the situation can change quickly. The reduction in the proportion of

male snow leopards may be indicative of continuing anthropogenic pressures. Our work reiterates the importance of monitoring both the abundance and population dynamics of species for effective conservation.
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Call Number SLN @ rakhee @ Serial 1416
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Author Johansson, O., Samelius, G., Wikberg, E, Chapron, G., Mishra, C., Low, M
Title Identification errors in camera- trap studies result in systematic population overestimation Type Journal Article
Year 2020 Publication Scientific Reports Abbreviated Journal
Volume 10 Issue 6393 Pages 1-10
Keywords
Abstract (up) Reliable assessments of animal abundance are key for successful conservation of endangered species. For elusive animals with individually-unique markings, camera-trap surveys are a benchmark standard for estimating local and global population abundance. Central to the reliability of resulting abundance estimates is the assumption that individuals are accurately identified from photographic captures. To quantify the risk of individual misidentification and its impact on population abundance estimates we performed an experiment under controlled conditions in which 16 captive snow leopards (Panthera uncia) were camera-trapped on 40 occasions and eight observers independently identified individuals and recaptures. Observers misclassified 12.5% of all capture occasions, resulting in systematically inflated population abundance estimates on average by one third (mean ± SD = 35 ± 21%). Our results show that identifying individually-unique individuals from camera-trap photos may not be as reliable as previously believed, implying that elusive and endangered species could be less abundant than current estimates indicate.
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Call Number SLN @ rakhee @ Serial 1496
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Author Johansson, O., Ausilio, G., Low, M., Lkhagvajav, P., Weckworth, B., Sharma, K.
Title The timing of breeding and independence for snow leopard females and their cubs. Type Journal Article
Year 2020 Publication Mammalian Biology Abbreviated Journal
Volume Issue Pages
Keywords Age of independence; Life-history trade-offs; Panthera uncia; Parental care; Pre-dispersal behavior; Separation; Subadult
Abstract (up) Significant knowledge gaps persist on snow leopard demography

and reproductive behavior. From a GPS-collared population in Mongolia,

we estimated the timing of mating, parturition and independence. Based

on three mother–cub pairs, we describe the separation phase of the cub

from its mother as it gains independence. Snow leopards mated from

January–March and gave birth from April–June. Cubs remained with their

mother until their second winter (20–22 months of age) when cubs started

showing movements away from their mother for days at a time. This

initiation of independence appeared to coincide with their mother mating

with the territorial male. Two female cubs remained in their mothers’

territory for several months after initial separation, whereas the male

cub quickly dispersed. By comparing the relationship between body size

and age of independence across 11 solitary, medium-to-large felid

species, it was clear that snow leopards have a delayed timing of

separation compared to other species. We suggest this may be related to

their mating behavior and the difficulty of the habitat and prey capture

for juvenile snow leopards. Our results, while limited, provide

empirical estimates for understanding snow leopard ecology and for

parameterizing population models.
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Call Number Serial 1613
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Author Janjua,S., Peters, J. L., Weckworth, B., Abbas, F. I., Bahn, Volker, Johansson, O., Rooney, T.P.
Title Improving our conservation genetic toolkit: ddRAD-seq for SNPs in snow leopards Type Journal Article
Year 2019 Publication Conservation Genetic Resource Abbreviated Journal
Volume Issue Pages
Keywords
Abstract (up) Snow leopards (Panthera uncia) are an enigmatic, high-altitude species whose challenging habitat, low population densities

and patchy distribution have presented challenges for scientists studying its biology, population structure, and genetics.

Molecular scatology brings a new hope for conservation efforts by providing valuable insights about snow leopards, including

their distribution, population densities, connectivity, habitat use, and population structure for assigning conservation units.

However, traditional amplification of microsatellites from non-invasive sources of DNA are accompanied by significant

genotyping errors due to low DNA yield and poor quality. These errors can lead to incorrect inferences in the number of

individuals and estimates of genetic diversity. Next generation technologies have revolutionized the depth of information

we can get from a species' genome. Here we used double digest restriction-site associated DNA sequencing (ddRAD-seq),

a well-established technique for studying non-model organisms, to develop a reference sequence library for snow leopards

using blood samples from five Mongolian individuals. Our final data set reveals 4504 loci with a median size range of 221 bp.

We identified 697 SNPs and low nucleotide diversity (0.00032) within these loci. However, the probability that two random

individuals will share identical genotypes is about 10-168. We developed probes for DNA capture using this sequence library

which can now be used for genotyping individuals from scat samples. Genetic data from ddRAD-seq will be invaluable for

conducting population and landscape scale studies that can inform snow leopard conservation strategies.
Address Snow leopard · ddRAD-seq · Next generation sequencing · SNP discovery
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Call Number SLN @ rakhee @ Serial 1483
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