wildlife

A professional naturalist's incredible, personal portrait of America's largest and most pristine wilderness in the lower 48 states: the Northern Continental Divide ecosystem in Montana, Alberta, and British Columbia.

This vast area includes two national parks in two countries (Glacier National Park and Waterton Lakes in Canada), three designated wilderness areas including the famous Bob...

Few animals inspire such a mixture of fear, curiosity, and wonder as the wolf. Highly regarded but often misunderstood, the wolf has as many friends as enemies, and its reintroduction into Yellowstone National Park has sparked both fascination and controversy. Early in Yellowstone's history, wolves were thought supernaturally evil, and scores were destroyed. Northern Rocky Mountain wolves were...

In the Tajik National Park (TNP) - a high altitude area of nearly 26,000 km2 in Central Asia - past and present human activiies, visibly contrast with standard conservation requirements for protected areas worldwide.  This paper focuses on resource management and highlights three major processes that threaten both the sustainable use of natural resources and the preservation of nature per...

Mongolia is a sparsely populated country with over 80 percent of its land used by pastoralists for extensive livestock grazing. Mongolia’s wildlife and pastoralists have faced dramatic challenges with the recent rapid socioeconomic changes. Livestock numbers increased dramatically in the 1990s following the transition from communism to democracy and capitalism. Yet, limited...

Great apes throughout West and Central Africa - gorillas, chimpanzees and bonobos - are being hunted for food and face the rapid loss of their habitat. Cameroon harbours two of the most threatened African great apes, both keystone species in the montane forest ecosystems of the border region of Nigeria and Cameroon. This article describes the main goal of the Western Cameroon Great Apes program...
The suggestion in the early 20th century that top predators were a necessary component of ecosystems because they hold herbivore populations in check and promote biodiversity was at first accepted and then largely rejected. With the advent of Evolutionary Ecology and a more full appreciation of direct and indirect effects of top predators, this role of top predators is again gaining acceptance....
Degradation of natural resources is more a result of social conflicts, which have not been recognized, than of bio-physical conditions and actions on the environment, and hence there is a low rate of success in most of the projects set up to arrest environmental degradation. Unless it is recognized to what extent environmental degradation is a result of conflicts over resources utilities, the...
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,...

The loss of livestock to wild predators is an important livelihood concern among Trans-Himalayan pastoralists. Because of the remoteness and inaccessibility of the region, few studies have been carried out to quantify livestock depredation by wild predators. In the present study, we assessed the intensity of livestock depredation by snow leopard 'Uncia uncia', Tibetan wolf 'Canis lupus chanku...

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...

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