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| Author | Graham, L.H.; Goodrowe, K.L.; Raeside, J.I.; Liptrap, R.M. | ||||
| Title | Non-invasive monitoring of ovarian function in several felid species by measurement of fecal estradiol-17-beta and progestins | Type | Journal Article | ||
| Year | 1995 | Publication | Zoo Biology | Abbreviated Journal | |
| Volume | 14 | Issue | 3 | Pages | 223-237 |
| Keywords | Artificial-Breeding-Program; captive-management; Estradiol-17beta; Pregnancy; Progesterone; Progestin; sexual-behavior; genetics; zoo; medicine; veterinary; snow-leopard; feces; fecal-analysis; snow leopard; artificial; breeding; program; captive; management; Estradiol; 17beta; sexual; behavior; browse; snow; leopard; fecal; analysis; 1390 | ||||
Abstract  |
An extraction and assay procedure to measure fecal estradiol-17-beta and progestin concentrations in several cat species was developed and validated for use for noninvasive monitoring of ovarian function. Fecal samples were collected over a range of 3-20 months from female tigers (three), lions (three), snow leopards (three), cheetahs (two), caracals (two), and domestic cats (five). Samples were extracted with 90% methanol, lipids removed with petroleum ether, and the estradiol and progestins in the methanol measured by radioimmunoassay (RIA). High Performance Liquid Chromatography (HPLC) fractionation and subsequent RIA of the fractions indicated that the estradiol-17-beta antiserum cross-reacted primarily with estradiol-17-beta in the feces of lions and tigers and was assumed to be specific for estradiol-17-beta in the feces of other species as well. However, there were several immunoreactive compounds, presumably progesterone metabolites, excreted in the feces which varied both quantitatively and qualitatively among species. The behavior of tigers, lions, cheetahs, and caracals was visually monitored during the collection period and frequency of sexual behaviors was positively correlated with increases in fecal estradiol in all species observed. The mean fecal estradiol-17-beta peaks were as follows: tigers, 128.0 +- 13.1; lions, 186.0 +- 14.8; snow leopards, 136.7 +- 15.9; cheetahs, 140.9 +- 9.0; caracals, 24.5 +- 4.0; and domestic cats 158.9 +- 19.3 ng/gm. Fecal progestin concentrations rose significantly (P lt 0,001) only after breeding or during pregnancy and were as follows: tigers, 5.6 +- 0.6; lions, 1.9 +- 0.1; cheetahs, 8.4 +- 1.1; and caracals, 2.4 +- 0.4 mu-g/gm. Fecal progestins were elevated for one-half to two-thirds of the gestation length during presumed pseudopregnancy but remained elevated throughout successful pregnancies. These results suggest that ovarian function can be monitored noninvasively in the family Felidae by the measurement of fecal estradiol-17-beta and progestin concentrations. | ||||
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| Notes | Document Type: English | Approved | no | ||
| Call Number | SLN @ rana @ 279 | Serial | 345 | ||
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| Author | Pal, R., Panwar, A., Goyal, S. P., Sathyakumar, S. | ||||
| Title | Changes in ecological conditions may influence intraguild competition: inferring interaction patterns of snow leopard with co-predators | Type | Journal Article | ||
| Year | 2022 | Publication | PeerJ | Abbreviated Journal | |
| Volume | 10 | Issue | e14277 | Pages | 1-26 |
| Keywords | Common leopard, Woolly wolf, Occupancy, Interspecific interactions, Temporal overlap, Scat analysis | ||||
| Abstract |
Background: Large-scale changes in habitat conditions due to human modifications and climate change require management practices to consider how species communities can alter amidst these changes. Understanding species interactions across the gradient of space, anthropogenic pressure, and season provide the opportunity to anticipate possible dynamics in the changing scenarios. We studied the interspecific interactions of carnivore species in a high-altitude ecosystem over seasonal (summer and winter) and resource gradients (livestock grazing) to assess the impact of changing abiotic and biotic settings on coexistence. Methods: The study was conducted in the Upper Bhagirathi basin, Western Himalaya, India. We analyzed around 4 years of camera trap monitoring data to understand seasonal spatial and temporal interactions of the snow leopard with common leopard and woolly wolf were assessed in the greater and trans-Himalayan habitats, respectively. We used two species occupancy models to assess spatial interactions, and circadian activity patterns were used to assess seasonal temporal overlap amongst carnivores. In addition, we examined scats to understand the commonalities in prey selection. Results: The result showed that although snow leopard and wolves depend on the same limited prey species and show high temporal overlap, habitat heterogeneity and differential habitat use facilitate co-occurrence between these two predators. Snow leopard and common leopard were spatially independent in the summer. Conversely, the common leopard negatively influences the space use of snow leopard in the winter. Limited prey resources (lack of livestock), restricted space (due to snow cover), and similar activity patterns in winter might result in strong competition, causing these species to avoid each other on a spatial scale. The study showed that in addition to species traits and size, ecological settings also play a significant role in deciding the intensity of competition between large carnivores. Climate change and habitat shifts are predicted to increase the spatial overlap between snow leopard and co-predators in the future. In such scenarios, wolves and snow leopards may coexist in a topographically diverse environment, provided sufficient prey are available. However, shifts in tree line might lead to severe competition between common leopards and snow leopards, which could be detrimental to the latter. Further monitoring of resource use across abiotic and biotic environments may improve our understanding of how changing ecological conditions can affect resource partitioning between snow leopards and predators. |
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| Call Number | SLN @ rakhee @ | Serial | 1701 | ||
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| Author | Chapron, G.; Legendre, S. | ||||
| Title | Some Insights Into Snow Leopard (Uncia Uncia) Demography By Using Stage Structured Population Models | Type | Conference Article | ||
| Year | 2002 | Publication | Abbreviated Journal | ||
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| Keywords | snow; leopard; uncia; viability; analysis; carnivore; carnivores; domestic; game; demographic; population; mortality; biology; mating; 4910 | ||||
| Abstract |
Based on the limited data available on snow leopard demography, we developed deterministic and stochastic stage-structured demographic models to study the population dynamics of this large cat. Our results reveal that even small leopard populations can persist provided their demographic parameters remain high, but less favorable scenarios would require larger population sizes. Population growth rate is more sensitive to breeder survivals than to any other parameters. A snow leopard population would start declining if yearly mortality claims more than 1/5 of the population. This study identifies poaching as a major threat to snow leopard survival and stresses the importance of long-term studies to better understand snow leopard population dynamics. | ||||
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| Publisher | Islt | Place of Publication | Seattle | Editor | |
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| Notes | Title, Monographic: Proceedings of the Snow Leopard Survival SummitPlace of Meeting: Seattle,WA | Approved | no | ||
| Call Number | SLN @ rana @ 477 | Serial | 213 | ||
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| Author | Vashetko, E.; Esipov A.; Bykova, E.; Kreuzberg, E. | ||||
| Title | Snow Leopard Bibliography. Central Asia (Abstracts) | Type | Manuscript | ||
| Year | 2005 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | |||
| Keywords | analysis; asia; bibliography; central; Central Asia; conservation; ecology; International; International-Snow-Leopard-Trust; international snow leopard trust; Islt; leopard; project; region; Russian; snow; snow-leopard; snow leopard; species; trust; work | ||||
| Abstract |
Bibliography of the Snow Leopard included publications on the studying various questions of ecology and conservation of the Snow Leopard in Central Asia (305) for the period 1873 to 2004. The most important works on this species in the region, as well as results of the analysis of timing of publications was described. | ||||
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| Notes | English version. Also available in Russian in the SLN bibliography. Project supported by International Snow Leopard Trust (ISLT), was carried out in 2004-2005. | Approved | no | ||
| Call Number | SLN @ rana @ 1061 | Serial | 983 | ||
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| Author | Atzeni, L., Wang, J., Riordan, P., Shi, K., Cushman, S. A. | ||||
| Title | Landscape resistance to gene flow in a snow leopard population from Qilianshan National Park, Gansu, China | Type | Journal Article | ||
| Year | 2023 | Publication | Landscape Ecology | Abbreviated Journal | |
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| Keywords | Landscape genetics · MLPE · Gene flow · Genetic distance · Isolation by distance · Isolation by resistance · Landscape resistance · Snow leopard · Principal component analysis | ||||
| Abstract |
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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| Notes | Approved | no | |||
| Call Number | SLN @ rakhee @ | Serial | 1720 | ||
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| Author | Xu, F.; Ming, M.; Yin, S.-jing; Munkhtsog, B. | ||||
| Title | Autumn Habitat Selection by Snow Leopard (Uncia uncia) in Beita Mountain, Xinjiang, China | Type | Miscellaneous | ||
| Year | 2006 | Publication | Zoological Research | Abbreviated Journal | |
| Volume | Issue | Pages | 221-224 | ||
| Keywords | habitat; Habitat selection; selection; snow; snow leopard; snow-leopard; leopard; uncia; Uncia uncia; Uncia-uncia; mountain; Xinjiang; China; Chinese; Altay; mountain system; system; 30; transects; transect; surveys; survey; study; area; analysis; primary; factor; 200; 600; Base; valley; Forest; region; south; grazing; status; topography | ||||
| Abstract |
Habitat selection of Snow Leopard ( Unica unica) in Beita Mountain of the Altay Mountain system in northeast Xinjiang was conducted from September to October 2004. Six habitat features of 59 sites used by Snow Leopard and 30 random plots were measured by locating 15 transects surveys in the study area . Vanderploge and Scaviaps selectivity index was used to assess Snow Leopardps selection for the different habitat parameters. Principal Component Analysis was used as the primary factor . The results indicated that Snow Leopard preferred the altitude between 2000 – 2 200 m and avoided 2 600 – 3 000 m ; selected cliff base , ridgeline and avoided hillside and valley bottom ; utilized the shrub and rejected the forest ; selected the nongrazing area and avoided the slightly broken region ; preferred north orientation and rejected the south orientation. The results show that grazing status , vegetation type , topography and the ruggedness are the primary factors for the habitat selection of Snow Leopard. | ||||
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| Notes | Full text available in Chinese | Approved | no | ||
| Call Number | SLN @ rana @ 872 | Serial | 1039 | ||
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| Author | Bagchi, S., Sharma, R. K., Bhatnagar, Y.V. | ||||
| Title | Change in snow leopard predation on livestock after revival of wild prey in the Trans-Himalaya | Type | Journal Article | ||
| Year | 2020 | Publication | Wildlife Biology | Abbreviated Journal | |
| Volume | Issue | Pages | 1-11 | ||
| Keywords | arid ecosystems, diet analysis, human-wildlife conflict, Panthera, predator, rangeland | ||||
| Abstract |
Human–wildlife conflict arising from livestock-losses to large carnivores is an important challenge faced by conservation. Theory of prey–predator interactions suggests that revival of wild prey populations can reduce predator’s dependence on livestock in multiple-use landscapes. We explore whether 10-years of conservation efforts to revive wild prey could reduce snow leopard’s Panthera uncia consumption of livestock in the coupled human-and-natural Trans-Himalayan ecosystem of northern India. Starting in 2001, concerted conservation efforts at one site (intervention) attempted recovery of wild- prey populations by creating livestock-free reserves, accompanied with other incentives (e.g. insurance, vigilant herding). Another site, 50km away, was monitored as status quo without any interventions. Prey remains in snow leopard scats were examined periodically at five-year intervals between 2002 and 2012 to determine any temporal shift in diet at both sites to evaluate the effectiveness of conservation interventions. Consumption of livestock increased at the status quo site, while it decreased at the intervention-site. At the intervention-site, livestock-consumption reduced during 2002–2007 (by 17%, p = 0.06); this effect was sustained during the next five-year interval, and it was accompanied by a persistent increase in wild prey populations. Here we also noted increased predator populations, likely due to immigration into the study area. Despite the increase in the predator population, there was no increase in livestock-consumption. In contrast, under status quo, dependence on livestock increased during both five-year intervals (by 7%, p=0.08, and by 16%, p=0.01, respectively). These contrasts between the trajectories of the two sites suggest that livestock-loss can potentially be reduced through the revival of wild prey. Further, accommodating counter-factual scenarios may be an important step to infer whether conservation efforts achieve their targets, or not. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1623 | |||
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| Author | Shrestha, R.; Wegge, P. | ||||
| Title | Determining the composition of herbivore diets in the Trans-Himalayan rangelands: A comparison of field methods | Type | Journal Article | ||
| Year | 2006 | Publication | Journal of Rangeland Ecology and Management | Abbreviated Journal | |
| Volume | 59 | Issue | 5 | Pages | 512-518 |
| Keywords | bite count; Bos grunniens; Capra hircus; diet; fecal analysis; feeding site examination; food habits; free ranging; Nepal; Ovis aries; trans-himalayan | ||||
| Abstract |
In late summer, in a semi-arid mountain range in Nepal, we compared 3 field methods for determining the botanical composition of herbivore diets. Data were collected from the same animals belonging to 1 herd of domestic yak (Bos grunniens) and 2 herds of mixed smallstock, consisting of domestic goats (Capra hircus) and sheep (Ovis aries). Bite count, feeding site examination, and microhistological analysis of feces gave different estimates of forage categories and plant species in both animal groups. Because yaks grazed in other vegetation communities when not observed for bite-counts and feeding signs, the results from the latter methods could not be compared directly with that from fecal analysis. In smallstock, feeding site examination gave higher estimates of graminoids and lower estimates of shrubs than the other 2 methods, probably because all feeding signs on shrubs were not detected. Bite-counts and fecal analysis gave comparable results, except that forbs were underestimated by fecal analysis, presumably due to their more complete digestion. Owing to the difficulty in collecting samples that are representative of the entire grazing period and the problem of recording feeding signs correctly, both feeding site examination and bite-counts are unsuitable methods for studying the food habits of free ranging domestic and wild herbivores. Microhistological analysis of feces appears to be the most appropriate method, but correction factors are needed to adjust for differential digestion. The systematic use of photomicrographs improves the speed and accuracy of the fecal analysis. | ||||
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| Call Number | SLN @ rana @ 935 | Serial | 889 | ||
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| Author | Jumabay, K., Wegge, P., Mishra, C., Sharma, K | ||||
| Title | Large carnivores and low diversity of optimal prey: a comparison of the diets of snow leopards Panthera uncia and wolves Canis lupus in Sarychat-Ertash Reserve in Kyrgyzstan | Type | Journal Article | ||
| Year | 2013 | Publication | Oryx | Abbreviated Journal | |
| Volume | Issue | Pages | 1-7 | ||
| Keywords | Canis lupus, Central Asia, food habits, intraguild competition, Panthera uncia, scat analysis | ||||
| Abstract |
In the cold and arid mountains of Central Asia, where the diversity and abundance of wild ungulates are generally low, resource partitioning among coexisting carnivores is probably less distinct than in prey-rich areas. Thus, similar-sized carnivores are likely to compete for food. We compared the summer diets of snow leopards Panthera uncia and wolves Canis lupus in Sarychat-Ertash Reserve in the Tien-Shan mountains of Kyrgyzstan, based on analysis of genetically confirmed scats. Abundances of the principal prey species, argali Ovis ammon and Siberian ibex Capra sibirica, were estimated from field surveys. The diets consisted of few species, with high interspecific overlap (Pianka’s index50.91). Argali was the predominant prey, with .50% frequency of occurrence in both snow leopard and wolf scats. This was followed by Siberian ibex and marmots Marmota baibacina. Being largely unavailable, remains of livestock were not detected in any of the scats. In the snow leopard diet, proportions of argali and ibex were in line with the relative availabilities of these animals in the Reserve. This was in contrast to the diet of wolf, where argali occurred according to availability and ibex was significantly underrepresented. The high diet overlap indicates that the two predators might compete for food when the diversity of profitable, large prey is low. Competition may be more intense in winter, when marmots are not available. Hunting of argali and ibex outside the Reserve may be unsustainable and therefore reduce their abundances over time. This will affect both predators negatively and intensify competition for food. Reduction in ibex populations will directly affect the snow leopard, and the wolf is likely to be indirectly affected as a result of increased snow leopard predation of argali. |
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| Call Number | SLN @ rakhee @ | Serial | 1397 | ||
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| Author | De Groot, H.; Van Swieten, P.; Aalberse, R.C. | ||||
| Title | Evidence for a Fel d I-like molecule in the “big cats” (Felidae species) | Type | Journal Article | ||
| Year | 1990 | Publication | J Allergy Clin Immunol | Abbreviated Journal | |
| Volume | 86 | Issue | 1 | Pages | 107-116 |
| Keywords | Adolescence; Adult; Allergens; immunology; Animal; Antibodies; Monoclonal; diagnostic; use; Antibody; Specificity; Carnivora; Cats; Comparative; study; Cross; Reactions; Hair; Histamine; Release; Human; IgE; analysis; IgG; Middle; Age; Radioallergosorbent; Test; methods; Support; Non-U.S.Gov't; browse; us; government; gov't; 240 | ||||
| Abstract |
In this study, we investigated the cross-reactivity pattern of IgE and IgG4 antibodies to the major feline allergen, Fel d I. We studied the IgE and IgG4 response of 11 cat-allergic patients against Fel d I-like structures in eight members of the Felidae family: ocelot, puma, serval, siberian tiger, lion, jaguar, snow leopard, and caracal. Hair from these “big cats” was collected, extracted, and used in a RAST system and histamine-release test. By means of a RAST-inhibition assay with affinity-purified Fel d I from cat dander, it was established that, in the Felidae species, a Fel d I equivalent is present that reacts with IgE and IgG4 antibodies. We found that all patients had cross-reacting IgE antibodies to seven of the Felidae tested; no IgE antibodies reactive with the caracal were found. Eight of 10 patients with IgG4 antibodies directed to cat dander also had IgG4 antibodies directed to several Felidae species, including the caracal. However, the correlation between the IgE and the IgG4 antibody specificity was low, indicating that, in the case of Fel d I IgE and IgG4, antibodies do not necessarily have the same specificity. | ||||
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| ISSN | 0091-6749 | ISBN | Medium | ||
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| Notes | Document Type: eng | Approved | no | ||
| Call Number | SLN @ rana @ 157 | Serial | 233 | ||
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