|
|
Shrestha, R., Wegge, P., & Koirala, R. A. (2005). Summer diets of wild and domestic ungulates in Nepal Himalaya. Journal of Zoology, 266, 111–119.
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.
|
|
|
|
Fox, J. L., Nurbu, C., & Chundawat, R. S. (1991). Tibetian Argali (Ovis ammon hodgsoni). Mammalia, , 48–51.
|
|
|
|
Namgail, T., Fox, J., & Bhatnagar, Y. (2007). Habitat shift and time budget of the Tibetan argali: the influence of livestock grazing (Vol. 22).
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.
|
|
|
|
Namgail, T. (2004). Interactions between argali and livestock, Gya-Miru Wildlife Sanctuary, Ladakh, India, Final Project Report.
Abstract: Livestock production is the major land-use in Ladakh region of the Indian Trans-Himalaya, and is a crucial sector that drives the region's economy (Anon, 2002). Animal products like meat and milk provide protein to the diet of people, while products like wool and pashmina (soft fibre of goats) find their way to the international market. Such high utility of livestock and the recent socio-economic changes in the region have caused an increase in livestock population (Rawat and Adhikari, 2002; Anon. 2002), which, if continue apace, may increase grazing pressure and deteriorate pasture conditions. Thus, there is an urgent need to assess the impact of such escalation in livestock population on the regions wildlife. Although, competitive interaction between wildlife and livestock has been studied elsewhere in the Trans-Himalaya (Bhatnagar et al., 2000; Mishra, 2001; Bagchi et al., 2002), knowledge on this aspect in the Ladakh region is very rudimentary. The rangelands of Ladakh are characterised by low primary productivity (Chundawat & Rawat, 1994), and the wild herbivores are likely to compete with the burgeoning livestock on these impoverished rangelands (Mishra et al., 2002). Thus, given that the area supports a diverse wild ungulate assemblage of eight species (Fox et al., 1991b), and an increasing livestock population (Rawat and Adhikari, 2002), the nature of interaction between wildlife and livestock needs to be assessed. During this project, we primarily evaluated the influence of domestic sheep and goat grazing on the habitat use of Tibetan argali Ovis ammon hodgsoni in a prospective wildlife reserve in Ladakh.
|
|
|
|
Yondon, O. (2010). Long-Term Conservation of Argali and Snow Leopard in the Trans-Boundary Areas of the Altai-Sayan Ecoregion between Mongolia and Russia (Second Phase). Mongolia: WWF Mongolia.
Abstract: Objective 1: To ensure long-term conservation of Argali and Snow leopard in the selected areas through proactive involvement of local communities and local organisations.
Objective 2. Facilitate establishing new PA in priority areas (critical habitat and migration corridors) of Argali and Snow leopard, which includes also trans-boundary PA’s
|
|
|
|
Schaller, G. B., Tserendeleg, J., & Amarsana, G. (1994). Observations on snow leopards in Mongolia. In J.Fox, & D.Jizeng (Eds.), (pp. 33–42). Usa: Islt.
|
|
|
|
Sukhbat, K., & Munkhtsog, B. (1997). Density and Distribution of Ibex and Argali Sheep in Mongolia. In R.Jackson, & A.Ahmad (Eds.), (pp. 121–123). Lahore, Pakistan: Islt.
|
|
|
|
Tserendeleg, J. (1994). On Protection and Survey of Snow Leopards in Mongolia. In J.L.Fox, & D.Jizeng (Eds.), (pp. 43–46). Usa: Islt.
|
|
|
|
Tserendeleg, J. (1997). Status and Conservation of Snow Leopard in Mongolia. In R.Jackson, & A.Ahmad (Eds.), (pp. 42–47). Lahore, Pakistan: International Snow Leopard Trust.
|
|
|
|
Xinchun, M. (1994). Distribution in the wild and the captive raising of snow leopards in Xinjiang, China. In J.L.Fox, & D.Jizeng (Eds.), (pp. 157–162). Usa: Islt.
|
|
