Publications

Large and mesocarnivores often occur at low densities due to both natural factors and human activities. Consequently, the noninvasive collection of carnivore data, such as scats for genetic...

The strength of top-down forces in terrestrial food webs is highly debated as there are few examples illustrating the role of large mammalian carnivores in structuring biotic...

Using a historical reconstruction, we discovered a potential trophic cascade involving cougar, mule deer and California black oak in Yosemite National Park in California. Our objective was to...

In Western North America, many rural areas are being converted to ranchette style residential development, potentially degrading habitat for large carnivores including pumas, and impacting ecosystem integrity. In...

Pumas have the largest geographic range of any terrestrial mammal in the Americas. Despite this large distribution, pumas are a species of conservation concern and believed in decline...

Interactions between humans and cougars have been steadily increasing over the past 20 years largely due to human encroachment into cougar habitat and an increase in the human...

Until recently, large apex consumers were ubiquitous across the globe and had been for millions of years. The loss of these animals may be humankind’s most pervasive...

We studied survival and causes of mortality of radiocollared cougars (Puma concolor) on the Greater Yellowstone Northern Range (GYNR) prior to (1987–1994) and after wolf (Canis lupus)...

Large carnivores pose a particular challenge in wildlife management. Their importance in ecosystem function is increasingly well documented, while at the same time their potential for conflict with...

Accurate information about the diet of large carnivores that are elusive and inhabit inaccessible terrain, is required to properly design conservation strategies. Predation on livestock and retaliatory killing...

India’s phenomenal economic growth over the last decade has been accompanied by a much-needed expansion and improvement in transport and other infrastructure networks. While there are...

Large carnivores perform keystone ecological functions through direct predation, or indirectly, through food subsidies to scavengers or trophic cascades driven by their influence on the distributions of their...