A mechanism for territorial pattern formation in wolves is analysed using a spatially explicit mathematical model which incorporates wolf movement and scent marking. Model results reflect field observations: buffer zones where wolves are scarce arise between adjacent packs and near these buffer zones there are increased levels of scent marking. It is shown how the precise behavioral response of...

We developed models and provide computer code to make carcass recovery data more useful to wildlife managers. With these tools, wildlife managers can understand the spatial, temporal (e.g., across time periods, seasons), and demographic patterns in mortality causes from carcass recovery datasets. From datasets of radio-collared and non-collared carcasses, managers can calculate the detection bi...

Gray wolves were reintroduced to Yellowstone National Park (YNP) in 1995. The population initially flourished, but since 2003 the population has experience significant reductions due to factors that may include disease-induced mortality, illegal hunting, park control programs, vehicle induced deaths and intra-species aggression. Despite facing similar conditions, and interference competition wi...

The conservation and management of wolves Canis lupus in the periphery of their distribution is challenging. Edges of wolf distribution are characterized by very few and intermittent occurrences of individuals, which are modulated by multiple factors affecting the overall population such as human-caused mortality, management targets and food availability. The knowledge of population dynamics in...

By the early 1900s, Euro-Americans had extirpated gray wolves (Canis lupus) from most of the contiguous United States. Yellowstone National Park was not immune to wolf persecution and by the mid-1920s they were gone. After seven decades of absence in the park, gray wolves were reintroduced in 1995–1996, again completing the large predator guild (Smith et al. 2003). Yellowstone’s ‘‘experiment in...

Signal from space: Two black holes with 31 and 25 solar masses merge and emit gravitational waves. The colors characterize the strength of the field. Children learn the principle of cause and effect early on: if you touch a hot stove, you’ll get burned. But animals such as wolves understand causal relationships, too – and as a study has shown, they are even better at it than dogs. A research te...

Given the widespread failure of anthropocentric approaches to wildlife conservation, questions conviviality have become increasingly important for conservation efforts. We propose that political-ecological conceptualizations other-than-human perspectives offer promising avenues fostering more just and sustainable human-wildlife interactions. To explore these issues, we investigate wolf in north...

We present research in synthetic social behavior for interactive virtual characters. We describe a model from the natural world, the gray wolf (Canis lupus), and the social behavior exhibited by packs of wolves, to use as the target for an interactive installation entitled AlphaWolf, which was shown at SIGGRAPH 2001. We offer a computational model that captures a subset of the social behavior o...

The gray wolf (Canis lupus) is one of the few large predators to survive the Late Pleistocene megafaunal extinctions [1]. Nevertheless, wolves disappeared from northern North America in the Late Pleistocene, suggesting they were affected by factors that eliminated other species. Using skeletal material collected from Pleistocene permafrost deposits of eastern Beringia, we present a comprehensiv...

Beavers (Castor canadensis) can be a significant prey item for wolves (Canis lupus) in boreal ecosystems due to their abundance and vulnerability on land. How wolves hunt beavers in these systems is largely unknown, however, because observing predation is challenging. We inferred how wolves hunt beavers by identifying kill sites using clusters of locations from GPS-collared wolves in Voyageurs ...