Grizzly bear, Ursus arctos-Wolf, Canis lupus, interaction in Glacier National Park, Montana
Kehoe NM. 1995. Grizzly bear, Ursus arctos-Wolf, Canis lupus, interaction in Glacier National Park, Montana. Canadian Field Naturalist. 109(1):117-118
Agonistic behavior between a Grizzly Bear (Ursus arctos horribilis) with its cub and a large pack of Wolves (Canis lupus) was observed during an overflight of Glacier National Park in northwestern Montana. The Wolves pursued and bit the adult bear as the animals moved along the edge of a meadow used a natal den by the Wolves. The adult bear responded to the attack by repeatedly swatting at and charging the Wolves. At one point, several Wolves chased and attacked the cub, provoking an immediate defense response by the female bear. Direct, interspecific aggression between Grizzly Bears and Wolves in the conterminous 48 states, where the species are listed respectively as threatened and endangered, may impact either or both of these recovering populations.
- Type
- Journal Article
- Authors
- Kehoe, Nancy
- Units
- CRCO , GLAC
- Keywords
- bear-wolf interaction, Canis lupus, Flathead River valley, Glacier National Park, Grizzly Bear, helicopter observations, interspecific aggression, Montana, Ursus arctos, Wolf