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Records |
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Author |
Jiang, Z. |
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Title |
Rescue Snow Spirit---Snow Leopard |
Type |
Journal Article |
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Year |
2006 |
Publication |
Zoological Research |
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242 |
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China |
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Chinese |
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SLN @ rana @ |
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1368 |
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Author |
Jiang, Z., Xu, A. |
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Title |
Snow Leopard |
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Journal Article |
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Year |
2006 |
Publication |
Chiese Journal of Zoology |
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128 |
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China |
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Chinese |
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Notes |
Zhigang Jiang, Aichun Xu |
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no |
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SLN @ rana @ |
Serial |
1369 |
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Author |
Johansson, Torbjorn, A. Johansson, Orjan. McCarthy, Tom |
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Title |
An Automatic VHF Transmitter Monitoring System for Wildlife Research |
Type |
Journal Article |
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Year |
2011 |
Publication |
Wildlife Society Bulletin |
Abbreviated Journal |
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Volume |
35 |
Issue |
(4) |
Pages |
489-493 |
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Abstract |
We describe an automated system for Monitoring multiple very high frequency (VHF) transmitters, which are commonly employed in wildlife studies. The system consists of a microprocessor-controlled radio-frequency monitor equipped with advanced signal-processing capabilities that communicates with, and release snow leopard (Panthera uncia) study in Mongolia, where checking trap-site transmitters manually entailed climbing a hill with telemetry equipment several times each day and night. Here, it monitors the trap site transmitters and actively produces an alarm when any of the traps have been triggered, or if the system has lost contact with any trap-transmitter. The automated system allowed us to constantly monitor transmitters from a research camp, and alerted us each time a trap was triggered. The sys ten has been field-tested for 83 days from mid-September 2010 to mid- December 2010 in the Tost mountain range on the edge of Mongolia's Gobi desert. During this time, the system performed reliably, responding correctly to 45 manually generated alarms and 9 animal captures. The system considerably sorters the time the captured animals spend in traps, and also mitigates the need for manual trap-site transmitter monitoring, greatly reducing risk to the animal and the human effort involved. |
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Call Number |
SLN @ rakhee @ |
Serial |
1382 |
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Author |
Johansson, O., McCarthy, T., Samelius, G., Andren, H., Tumursukh, L., Mishra, C. |
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Title |
Snow leopard predation in a livestock dominated landscape in Mongolia |
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Journal Article |
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Year |
2015 |
Publication |
Biological Conservation |
Abbreviated Journal |
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Volume |
184 |
Issue |
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Pages |
251-258 |
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Keywords |
Gobi desert, GPS collar, Kill rate, Panthera uncial, Prey choice, Wildlife conflict |
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Abstract |
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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SLN @ rakhee @ |
Serial |
1420 |
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Author |
Johansson, O., Rauset, G. R., Samelius, G., McCarthy, T., Andren, H., Tumursukh, L., Mishra, C. |
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Title |
Land sharing is essential for snow leopard conservation |
Type |
Journal Article |
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Year |
2016 |
Publication |
Biological Conservation |
Abbreviated Journal |
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Issue |
203 |
Pages |
1-7 |
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Keywords |
Home range, LoCoH, Mongolia, Panthera uncial, Protected areas, Land sparing |
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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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SLN @ rakhee @ |
Serial |
1446 |
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Author |
Johansson, O., Koehler, G., Rauset, G. R.< Samelius, G., Andren, H., Mishra, C., Lhagvarsuren, P., McCarthy, T., Low, M. |
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Title |
Sex specific seasonal variation in puma and snow leopard home range utilization |
Type |
Journal Article |
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Year |
2018 |
Publication |
Ecosphere |
Abbreviated Journal |
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Volume |
9 |
Issue |
8 |
Pages |
1-14 |
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Keywords |
Cougar, female choice, LoCoH, mating tactics, Panthera Uncia, Puma concolor, spacing pattern, territoriality |
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Abstract |
Territory size is often larger for males than for females in species without biparental care. For large solitary carnivores, this is explained by males encompassing a set of female territories to monopolize their reproduction during mating (area maximization). However, males are expected to behave more like females outside of breeding, with their area utilization being dependent on the range required to secure food resources (area minimization). To examine how male and female solitary carnivores adjust their spatial organization during the year as key resources (mates and prey) change, we radio‐collared 17 pumas (Puma concolor; nine males and eight females) and 14 snow leopards (Panthera uncia; seven males and seven females) and estimated home range size and overlap on two temporal scales (annual vs. monthly). Contrary to expectation, we found no evidence that males monopolized females (the mean territory overlap between females and the focal male during the mating season was 0.28 and 0.64 in pumas and snow leopards, respectively). Although male�male overlap of annual home ranges was comparatively high (snow leopards [0.21] vs. pumas [0.11]), monthly home range overlaps were small (snow leopards [0.02] vs. pumas [0.08]) suggesting strong territoriality. In pumas, both males and females reduced their monthly home ranges in winter, and at the same time, prey distribution was clumped and mating activity increased. In snow leopards, females showed little variation in seasonal home range size, following the seasonal stability in their primary prey. However, male snow leopards reduced their monthly home range utilization in the mating season. In line with other studies, our results suggest that female seasonal home range variation is largely explained by changes in food resource distribution. However, contrary to expectations, male territories did not generally encompass those of females, and males reduced their home ranges during mating. Our results show that male and female territorial boundaries tend to intersect in these species, and hint at the operation of female choice and male mate guarding within these mating systems. |
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SLN @ rakhee @ |
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1471 |
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Author |
Johansson, O., Samelius, G., Wikberg, E, Chapron, G., Mishra, C., Low, M |
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Title |
Identification errors in camera- trap studies result in systematic population overestimation |
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Journal Article |
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Year |
2020 |
Publication |
Scientific Reports |
Abbreviated Journal |
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10 |
Issue |
6393 |
Pages |
1-10 |
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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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SLN @ rakhee @ |
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1496 |
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Author |
Johansson, Torbjorn, A. Johansson, Orjan. McCarthy, Tom |
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Title |
An Automatic VHF Transmitter Monitoring System for Wildlife Research |
Type |
Journal Article |
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Year |
2011 |
Publication |
Wildlife Society Bulletin |
Abbreviated Journal |
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9999 |
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1-5 |
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Keywords |
automatic system, monitoring, pulse detection, trap-site transmitter, VHF transmitter monitoring |
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We describe an automated system for monitoring multiple very high frequency (VHF) transmitters, which are commonly employed in wildlife studies. The system consists of a microprocessor-controlled radio-frequency monitor equipped with advanced signal-processing capabilities that communicates with, and relays information to, a user interface unit at a different location. the system was designed for a capture-and-release snow leopard (Panthera uncia) study in Mongolia, where checking trap-site transmitters manually entailed climbing a hill with telemetry equipment several times each day and night. Here, it monitors the trap-site transmitters and actively produces an alarm when any of the traps have been triggered, or if the system has lost contact with any trap-transmitter. The automated system allowed us to constantly monitor transmitters from a research camp, and alerted us each time a trap was triggered. The system has been field-tested for 83 days from mid-September 2010 to mid-december 2010 in the Tost mountain range on the edge of Mongolia's Gobi desert. During this time, the system performed reliably, responding correctly to 45 manually generated alarms and 9 animal captures. The system considerably shortens the time the captured animals spend in traps, and also mitigates the need for manual trap-site transmitter monitoring, greatly reducing risk to the animal and the human effort involved. |
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1379 |
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Author |
Johnsingh, A.J.T. |
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Title |
A roadmap for conservation in Uttaranchal |
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Report |
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Year |
2006 |
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Abbreviated Journal |
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1-13 |
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carnivores, conservation, forest, habitat, hunting, landscape, Panthera uncia, poaching, snow leopard, species, tiger, Uncia uncia, ungulates, Uttar Pradesh, Uttaranchal |
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Abstract |
The enchanting state of Uttaranchal, carved out of Uttar Pradesh on 9th November 2000, has a total area of ca. 53,485 km2 with a population density of 160 persons/ km2, much lower than the national average of 324/km2. This young state can take pride in the fact that 13.42% of its area is under protected areas. The state has varied landscapes: snow-capped and conifer forest covered mountains in the north, forest covered foothills with numerous perennial rivers and streams, locally known as the bhabar tract which includes the Himalayan foothills and the Shivalik range. As a result, the land is home to a variety of fascinating wildlife such as the golden mahseer (Tor putitora), king cobra (Ophiophagus hanna), Himalayan monal (Lophophorus impejanus), great hornbill (Buceros bicornis), Himalayan tahr (Hemitragus jemlahicus), bharal (Pseudois nayaur), Himalayan musk deer (Moschus chrysogaster), goral (Nemorhaedus goral), elephant (Elephas maximus), snow leopard (Panthera uncia), leopard (P. pardus), black bear (Ursus thibetanus), and tiger (P. tigris). All across their range, most of these species are endangered. The potential of this state, with about 800 kilometers of riverine habitat, can only be surpassed by Arunachal Pradesh in terms of golden mahseer conservation. The mountains, bedecked with the scarlet flowers of rhododendron (Rhododendron arboreum) in the summer months, can be a veritable home to many forms of pheasants, mountain ungulates and carnivores, provided poaching for trade is eliminated and hunting for the pot is brought under control. The bhabar forests of this state, ca. 7,500 km2, extending between Yamuna and Sharda rivers (Fig. 1.), can easily support a population of about 1000 elephants and 200 tigers as long as this large habitat, now fragmented in three blocks, is managed and protected as one continuous habitat for wildlife. Six villages, gujjar settlements and encroachments need to be moved away from the main wildlife habitat which goes along the bhabar tract. Although the conservation of these habitats can eventually bring in immense benefits through well-planned ecotourism programmes that are rapidly catching up in the state, initial conservation efforts would need a substantial amount of funds. |
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1121 |
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Author |
Jones, M.L. |
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Title |
The snow leopard in captivity |
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1977 |
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The World's Cats: Contributions to breeding biology, behavior and husbandry |
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III |
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3 |
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264-271 |
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snow leopard, captivity |
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Eaton, R.L. |
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Proceedings of the Third Internatinoal Symposium on the World's Cats, April 26-28, 1974, Seattle, Washington. |
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SLN @ rana @ |
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1233 |
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