Grizzly & black bears: dietary niche partitioning
Photo: Scott Nielsen - Glacier National Park
Sympatric relationships between grizzly & black bear in Glacier National Park, Montana
Glacier National Park, Montana, USA
Adjunct Professor
Curator of Mammalogy, Royal Alberta Museum
Status: Active, Active, currently in analytical stage

Grizzly and black bears are sympatric in many parts of western North America. Little is known about how these two species share habitats and niche space. This study uses non-invasive hair snag data where species identity and individuals are known from DNA to examine dietary spatial overlap among species using isotopes.