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Author Johansson, O., Alexander, J. S., Lkhagvajav, P., Mishra, C., Samelius, G. pdf 
  Title (down) Natal dispersal and exploratory forays through atypical habitat in the mountain-bound snow leopard Type Journal Article
  Year 2024 Publication Ecology Abbreviated Journal  
  Volume 2024 Issue e4264 Pages 1-4  
  Keywords connectivity, Gobi Desert, landscape permeability, Mongolia, Panthera uncia, resistance, steppe  
  Abstract Understanding how landscapes affect animal movements is key to effective conservation and management (Rudnick et al., 2012; Zeller et al., 2012). Movement defines animal home ranges, where animals generally access resources such as food and mates, and also their dispersal and exploratory forays. These movements are important for individual survival and fitness through genetic exchange within and between populations and for colonization of unoccupied habitats (Baguette et al., 2013; MacArthur & Wilson, 1967). Dispersal and exploratory movements typically occur when young animals leave their natal range and establish more permanent home ranges (Greenwood, 1980; Howard, 1960). In mammals, natal dispersal of males is usually more frequent and happens over greater distances compared with that of females (Clobert et al., 2001; Greenwood, 1980).  
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  Call Number SLN @ rakhee @ Serial 1742  
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Author Johansson, O., Rauset, G. R., Samelius, G., McCarthy, T., Andren, H., Tumursukh, L., Mishra, C. url 
  Title (down) 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 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 Samelius, G., Suryawanshi, K., Frank, J., Agvaantseren, B., Baasandamba, E., Mijiddorj, T., Johansson, O., Tumursukh, L., Mishra, C. url 
  Title (down) 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 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 Janjua,S., Peters, J. L., Weckworth, B., Abbas, F. I., Bahn, Volker, Johansson, O., Rooney, T.P. url 
  Title (down) Improving our conservation genetic toolkit: ddRAD-seq for SNPs in snow leopards Type Journal Article
  Year 2019 Publication Conservation Genetic Resource Abbreviated Journal  
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  Abstract 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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Author Johansson, O., Samelius, G., Wikberg, E, Chapron, G., Mishra, C., Low, M url 
  Title (down) 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  
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  Abstract 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., Kachel, S., Weckworth, B. pdf 
  Title (down) 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 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 Solari, K. A., Morgan, S., Poyarkov, A. D., Weckworth, B., Samelius, G., Sharma, K., Ostrowski, S., Ramakrishnan, U., Kubanychbekov, Z., Kachel, S., Johansson, O., Lkhagvajav, P., Hemmingmoore, H., Alexandrov, D. Y., Bayaraa, M., Grachev, A., Korablev, M. P., Hernandez-Blanco, J. A., Munkhtsog, B., Rosenbaum, B., Rozhnov, V. V., Rajabi, A. M., Noori, H., Armstrong, E. E., Petrov, D. A. pdf  doi
  Title (down) Extreme in Every Way: Exceedingly Low Genetic Diversity in Snow Leopards Due to Persistently Small Population Size Type Journal Article
  Year 2023 Publication bioRxiv Abbreviated Journal  
  Volume Issue Pages 1-24  
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  Abstract Snow leopards (Panthera uncia) serve as an umbrella species whose conservation benefits their high-elevation Asian habitat. Their numbers are believed to be in decline due to numerous Anthropogenic threats; however, their conservation is hindered by numerous knowledge gaps. They are the least studied genetically of all big cat species and little is known about their historic population size and range, current population trends, or connectivity across their range. Here, we use whole genome sequencing data for 41 snow leopards (37 newly sequenced) to assess population connectivity, historic population size, and current levels of genetic diversity. Among our samples, we find evidence of a primary genetic divide between the northern and southern part of the range around the Dzungarian Basin and a secondary divide south of Kyrgyzstan around the Taklamakan Desert. However, we find evidence of gene flow, suggesting that barriers between these groups are permeable. Perhaps most noteworthy, we find that snow leopards have the lowest genetic diversity of any big cat species, likely due to a persistently small population size throughout their evolutionary history. Without a large population size or ample standing genetic variation to help buffer them from any forthcoming Anthropogenic challenges, snow leopard persistence may be more tenuous than currently appreciated.  
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  Call Number SLN @ rakhee @ Serial 1739  
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Author Johansson, O., Ullman, K., Lkhagvajav, P., Wiseman, M., Malmsten, J., Leijon, M. url 
  Title (down) Detection and Genetic Characterization of Viruses Present in Free-Ranging Snow Leopards Using Next-Generation Sequencing Type Journal Article
  Year 2020 Publication Frontiers in Veterinary Science Abbreviated Journal  
  Volume 7 Issue 645 Pages 1-9  
  Keywords snow leopard, free-ranging, virome, Mongolia, rectal swabs, next-generating sequencing, Panthera unica  
  Abstract Snow leopards inhabit the cold, arid environments of the high

mountains of South and Central Asia. These living conditions likely

affect the abundance and composition of microbes with the capacity to

infect these animals. It is important to investigate the microbes that

snow leopards are exposed to detect infectious disease threats and

define a baseline for future changes that may impact the health of this

endangered felid. In this work, next-generation sequencing is used to

investigate the fecal (and in a few cases serum) virome of seven snow

leopards from the Tost Mountains of Mongolia. The viral species to which

the greatest number of sequences reads showed high similarity was

rotavirus. Excluding one animal with overall very few sequence reads,

four of six animals (67%) displayed evidence of rotavirus infection. A

serum sample of a male and a rectal swab of a female snow leopard

produced sequence reads identical or closely similar to felid

herpesvirus 1, providing the first evidence that this virus infects snow

leopards. In addition, the rectal swab from the same female also

displayed sequence reads most similar to feline papillomavirus 2, which

is the first evidence for this virus infecting snow leopards. The rectal

swabs from all animals also showed evidence for the presence of small

circular DNA viruses, predominantly Circular Rep-Encoding

Single-Stranded (CRESS) DNA viruses and in one case feline anellovirus.

Several of the viruses implicated in the present study could affect the

health of snow leopards. In animals which are under environmental

stress, for example, young dispersing individuals and lactating females,

health issues may be exacerbated by latent virus infections.
 
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  Call Number Serial 1612  
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Author Johansson, O., Agvaantseren, B., Jackson, R., Kachel, S., Kubanychbekov, Z., McCarthy, T., Mishra, C., Ostrowski, S., Kulenbekov, R., Rajabi, A. M., Subba, S. pdf 
  Title (down) Body measurements of free-ranging snow leopards across their range Type Journal Article
  Year 2022 Publication Snow Leopard Reports Abbreviated Journal  
  Volume 1 Issue Pages 1-6  
  Keywords Body mass, body size, carnivore, morphology, Panthera uncia  
  Abstract We provide body measurements of snow leopards collected from 55 individuals sampled in five of the major mountain ranges within the species distribution range; the Altai, Hindu Kush, Himalayas, Pamirs and Tien Shan mountains. Snow leopards appear to be similarly sized across their distribution range with mean body masses of 36 kg and 42 kg for adult females and adult males, respectively. In contrast to other large felids, we found little variation in body size and body mass between the sexes; adult males were on average 5% longer and 15% heavier than adult females.  
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  Notes Approved no  
  Call Number SLN @ rakhee @ Serial 1711  
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