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| Author | Shrestha, R.; Wegge, P.; Koirala, R.A. | ||||
| Title | Summer diets of wild and domestic ungulates in Nepal Himalaya | Type | Journal Article | ||
| Year | 2005 | Publication | Journal of Zoology | Abbreviated Journal | |
Volume  |
266 | Issue | Pages | 111-119 | |
| Keywords | argali; blue sheep; Capra hircus; diet; faecal analysis; fecal analysis; mountain ungulates; Ovis ammon hodgsoni; pseudois nayaur | ||||
| Abstract | The selection of summer forage by three sympatric ungulates in the Damodar Kunda region of upper Mustang in north Nepal was studied to assess the extent of food overlap between them. To compare their diets, a microhistological technique of faecal analysis was used, adjusted for inherent biases by comparing it with bite-count data obtained in domestic goats. Tibetan argali Ovis ammon hodgsoni, naur (blue sheep or bharal) Pseudois nayaur and domestic goat Capra hircus consumed mostly forbs, graminoids and browse, respectively. The proportions of food items in their diets were significantly different both at the plant species (P<0.02) and at the forage category level (P<0.001). Except for sharing three common plants (Agrostis sp., Stipa sp. and Potentilla fruticosa), dietary overlap at the species level was quite low. At the forage category level, naur and domestic goat overlapped more than the other ungulate pairs. Although all three species were opportunistic, mixed feeders, argali was a more selective forb specialist grazer than the other two ungulates. Owing to some spatial separation and little dietary overlap, interspecific competition for summer forage was low. If animal densities increase, however, goats are expected to compete more with naur than with argali because of their more similar diets. Owing to differences in forage selection by argali and naur throughout their large geographical ranges, reflecting adaptations to local ecological conditions, inferences regarding forage competition between domestic livestock and these two wild caprins need to be made from local, site-specific studies, rather than from general diet comparisons. |
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| Publisher | The Zoological Society of London | Place of Publication | London | Editor | |
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| Notes | Approved | no | |||
| Call Number | SLN @ rana @ 934 | Serial | 888 | ||
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| Author | Namgail, T.; Fox, J.; Bhatnagar, Y.V. | ||||
| Title | Habitat segregation between sympatric Tibetan argali Ovis ammon hodgsoni and blue sheep Pseudois nayaur in the Indian Trans-Himalaya | Type | Journal Article | ||
| Year | 2004 | Publication | Journal of Zoology | Abbreviated Journal | |
| Volume |
262 | Issue | Pages | 57-63 | |
| Keywords | argali; Ovis ammon hodgsoni; blue sheep; pseudois nayaur; Habitat selection; resource partitioning; niche relationship; 5200 | ||||
| Abstract | Tibetan argali Ovis ammon hodgsoni and blue sheep Pseudois nayaur have almost completely overlapping distributions encompassing most of the Tibetan plateau and its margins. Such a sympatric distribution of related species with similar ecological requirements implies that there is some degree of resource partitioning. This may be accomplished on the basis of habitat and/or diet separation. This study evaluated such ecological separation on the basis of physical habitat partitioning by these two sympatric ungulates in Hemis High Altitude National Park, Ladakh, India, in an area where the argali established a small new population in 1978. Such separation was tested for on the basis of expected difference between the species in their proximity to cliffs, associated with species-specific anti-predator behaviour. Tibetan argali selected habitats away from cliffs while blue sheep selected habitats close to cliffs. Blue sheep also selected steep slopes whereas argali selected gentle slopes. The two species did not differ in their use of habitats in terms of elevation. They did, however, differ in their use of plant communities; blue sheep selected sub-shrub and grass-dominated communities whilst argali selected forb-dominated communities. We suggest that the two species coexist in this site as a result of the differential use of habitat associated with their species-specific anti-predator strategies. |
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| Notes | Full text available at URL | Approved | no | ||
| Call Number | SLN @ rana @ 505 | Serial | 710 | ||
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| Author | Harris, R.B.; Pletscher, D.H.; Loggers, C.O.; Miller, D.J. | ||||
| Title | Status and trends of Tibetan plateau mammalian fauna, Yeniugou, China | Type | Journal Article | ||
| Year | 1999 | Publication | Biological Conservation | Abbreviated Journal | |
| Volume |
87 | Issue | Pages | 13-19 | |
| Keywords | argali; blue sheep; China; conservation; Qinghai; survey; Tibetan antelope; Tibetan gazelle; Tibetan wild ass; white-lipped deer; wild; yak; Yeniugou; 5210 | ||||
| Abstract | We conducted surveys focusing on the unique and vulnerable ungulate species in Yeniugou, Qinghai province, China, during September 1997 to compare population estimates with those from the early 1990s. The status of two ungulate species appeared essentially unchanged since 1990ñ1992: wild yak Bos grunniens (about 1200 to 1300 animals) and Tibetan gazelle Procapra picti- caudata. The status of one ungulate species, the white-lipped deer Cervus albirostris, appeared to improve, from a very few to close to 100. We are unsure how the status of the Tibetan wild ass Equus kiang compares with that of the early 1990s. The status of three species declined during the period: blue sheep Pseudois nayaur and argali Ovis ammon declined slightly (possibly due to a weather event), and the Tibetan antelope Pantholops hodgsoni declined dramatically (probably due primarily to poaching), from over 2000 estimated in 1991 to only two seen during 1997. Poaching of antelope has become a serious problem throughout the Tibetan plateau in recent years, and this survey provides evidence that an entire subpopulation can disappear (either through mortality, movement away from human disturbance or a combination) within a relatively short time-frame. That some species (e.g. wild yak, white-lipped deer) continue to thrive in Yeniugou is heartening, but even they remain vulnerable to market-driven poaching.#1998 Elsevier Science Ltd. All rights reserved. | ||||
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| Notes | Approved | no | |||
| Call Number | SLN @ rana @ 506 | Serial | 373 | ||
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| Author | Namgail, T. | ||||
| Title | Vigilance behaviour of the Tibetan argali Ovis ammon hodgsoni in the Indian Trans-Himalaya | Type | Journal Article | ||
| Year | 2007 | Publication | Acta Zoologica Sinica | Abbreviated Journal | |
| Volume |
53 | Issue | Pages | 195-200 | |
| Keywords | Tibertan argali, Ovis ammon, vigilance, dilution effect, Ladakh, Trans-Himalaya | ||||
| Abstract | An inverse relationship between individual vigilance level and group size is widely reported in many behavioral studies on animals across several taxa. It is generally held that such a relationship is due to a reduced probability of an individual being killed in larger groups. in the present investigation, I studied the vigilance behavior of the endangered Tibetan argali Ovis ammon hodgsoni in relation to group size and escape terrain. I hypothesized that an individual argali has a higher vigilance level in smaller groups and in habitats closer to cliffs than individuals living in larger groups and open areas (escape terrain). The results show that the vigilance of argali decreased with increasing group size, but there was no effect of escape terrain on its vigilance behavior. There were significant differences between age-sex groups: male, female and yearling in their time budgets. Females, compared to males and yearlings, spent more time being vigilant. They also foraged more and moved less than males. It is suggested that vigilance is an important anti-predator behavior amongst argali sheep. | ||||
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| Notes | Abstract also available in Chinese | Approved | no | ||
| Call Number | SLN @ rana @ | Serial | 1310 | ||
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| Author | Reading, R.P.; Mix, H.; Lhagvasuren, B.; Blumer, E.S. | ||||
| Title | Status of wild Bactrian camels and other large ungulates in south-western Mongolia | Type | Journal Article | ||
| Year | 1999 | Publication | Oryx | Abbreviated Journal | |
| Volume |
33 | Issue | 3 | Pages | 247-255 |
| Keywords | argali; Asian wild ass; Bactrian camels; Camelus bactrianus; goitred gazelle; Mongolia.; 5230 | ||||
| Abstract | Abstract Wild Bactrian camels Camelus bactrianus ferus are endangered. Surveys over the past several decades suggest a marked decline in camel numbers and reproductive success. However, most surveys were made using methods that precluded rigorous population estimation. The need for more accurate surveys resulted in an aerial survey of known and suspected camel habitat in Mongolia during March 1997. We estimated density, group density and population size of large mammals in south-western Mongolia using the interactive computer program DISTANCE. We recorded sufficient data for population modelling of wild Bactrian camels, goitred gazelles Gazella subgutturosa, Asian wild asses Equus hemionus and argali sheep Ovis ammon. We observed 277 camels in 27 groups (mean group size = 10.269 +- 2.38 SE camels: group). Modelling yielded a population estimate of 198 +- 802 SE camels in the survey area. Population modelling for other ungulates yielded estimates of 6046 +- 1398 SE goitred gazelles, 1674 +- 506 SE Asian wild asses and 909 +- 303 SE argalis. Discrepancies between population estimates of ungulates in our survey and previous surveys are discussed with regard to methods used and robustness of results obtained. We also discuss conservation implications for wild Bactrian camels and other Mongolian ungulates. | ||||
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| Notes | Full text available at URL | Approved | no | ||
| Call Number | SLN @ rana @ 508 | Serial | 812 | ||
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| Author | Reading, R.P.; Amgalanbaatar, S.; Mix, H.; Lhagvasuren, B. | ||||
| Title | Argali Ovis ammon surveys in Mongolia's South Gobi | Type | Journal Article | ||
| Year | 1997 | Publication | Oryx | Abbreviated Journal | |
| Volume |
31 | Issue | 4 | Pages | 285-294 |
| Keywords | Mongolia; argali; gobi; livestock; population; status; 5220 | ||||
| Abstract | Claims poaching and competition with domestic livestock are threatening the argali's survival in Mongolia. The author's conducted aerial and ground surveys in the South Gobi and estimated a populaton size of approximately 3,900 argali. | ||||
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| Notes | Full text available at URL. | Approved | no | ||
| Call Number | SLN @ rana @ 507 | Serial | 811 | ||
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| Author | Lui, C.-guang; Zheng, C.-wu; Ren, J.-rang | ||||
| Title | Research Foods and Food Sources About Snow Leopard (Panthera uncia) | Type | Miscellaneous | ||
| Year | 2003 | Publication | Abbreviated Journal | ||
| Volume |
31 | Issue | Pages | 154-159 | |
| Keywords | research; foods; food; snow; snow leopard; snow-leopard; leopard; panthera; panthera uncia; Panthera-uncia; uncia; Chinese; deer; kiang; argali; Qinghai; gansu; Sichuan; Comparative; congruence; species; distribution; variation | ||||
| Abstract | During 1984-1987, 1992-1995, and 1998-2001, the author researched snow leopard, white lipped deer, kiang, and argali in Qinghai, Gansu, Xingiang, and Sichuan. He collected 644 snow leopard droppings, and analyzed kinds of foods and sources from perch. Snow leopard's foods include most main foods, main foods, comparative foods and lesser foods. Studied one another index of faunistic congruence of foods species that from various distribution and variation both perch vertical variety and foods of snow leopard. |
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| Notes | Full text available in Chinese. Periodical: Journal of Shaanxi Normal University (Natural Science Edition) | Approved | no | ||
| Call Number | SLN @ rana @ 877 | Serial | 626 | ||
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| Author | Namgail, T. | ||||
| Title | Gya-Miru: last refuge of the Tibetan argali | Type | Magazine Article | ||
| Year | 2003 | Publication | Sanctuary Asia | Abbreviated Journal | |
| Volume |
23 | Issue | Pages | 16-21 | |
| Keywords | Tibetan argali, Ovis ammon | ||||
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| Notes | Approved | no | |||
| Call Number | SLN @ rana @ | Serial | 1313 | ||
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| Author | Namgail, T.; Fox, J.; Bhatnagar, Y. | ||||
| Title | Habitat shift and time budget of the Tibetan argali: the influence of livestock grazing | Type | Miscellaneous | ||
| Year | 2007 | Publication | Ecological Resources | Abbreviated Journal | |
| Volume |
22 | Issue | Pages | 25-31 | |
| Keywords | habitat shift; livestock; Tibetan argali; Time budget; trans-himalaya | ||||
| Abstract | Livestock production is the primary source of livelihood and income in most of the high steppe and alpine regions of the Indian Trans-Himalaya. In some areas, especially those established or proposed for biodiversity conservation, recent increases in populations of domestic livestock, primarily sheep and goats, have raised concern about domestic animals competitively excluding wild herbivores from the rangelands. We evaluated the influence of domestic sheep and goat grazing on the habitat use and time budget of the endangered Tibetan argali Ovis ammon hodgsoni in the proposed Gya-Miru Wildlife Sanctuary, Ladakh, India. We asked if the domestic sheep and goat grazing and collateral human activities relegate the argali to suboptimal habitats, and alter their foraging time budgets. Data were collected on habitat use and time budget of a population of c. 50 argalis before and after c. 2,000 sheep and goats moved onto their winter pasture in the Tsabra catchment of the aforementioned reserve. Following the introduction of domestic sheep and goats, argalis continued to use the same catchment but shifted to steeper habitats, closer to cliffs, with lower vegetation cover, thus abandoning previously used plant communities with denser cover. Argalis' active time spent foraging also decreased by 10% in response to the presence of livestock. These results suggest a clear disturbance effect of livestock on argalis, and indicate a potential for competition, conceivably a significant disadvantage for argalis in winter when forage availability is minimal. |
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| Notes | Approved | no | |||
| Call Number | SLN @ rana @ 926 | Serial | 713 | ||
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| Author | Mitropolskiy O.V. | ||||
| Title | Biodiversity of mammals in Uzbekistan: results of the studies; conservation, use and monitoring projects | Type | Miscellaneous | ||
| Year | 2004 | Publication | Abbreviated Journal | ||
| Volume |
N 8. | Issue | Pages | 18-25 | |
| Keywords | Western Tien Shan; rare species; status; threats; conservation measures; snow leopard; brown bear; Tien Shan argali; Karatau argali; Menzbier's marmot.; 7660; Russian | ||||
| Abstract | The article reviews conservation projects regarding valuable species of the West Tien Shan such as snow leopard, Tien Shan brown bear, Tien Shan and Karatau argali, Menzbier's marmot. The questioning revealed three cases of poaching snow leopard in the West Tien Shan in Kazakhstan, and 11 in Uzbekistan. A necessity to severely suppress any acts of poaching or skin trade is emphasized. A number of measures is suggested to preserve the species. | ||||
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| Notes | Full text available in RussianJournal Title: Information bulletin/digest of Central Asia transboundary biodiversity project. | Approved | no | ||
| Call Number | SLN @ rana @ 744 | Serial | 699 | ||
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