Ecological studies of wolves on Isle Royale - Annual report 2007-2008
Vucetich JA and Peterson RO. 2008. Ecological studies of wolves on Isle Royale - Annual report 2007-2008. Annual Report. School of Forest Resources and Environmental Science, Michigan Technological University. Houghton, MI
During 2007–2008, the wolf population increased slightly, from 21 to 23, and the moose population remained approximately stable at a relatively low abundance. For the past two years, wolf abundance has been near its long-term average, and moose abundance has been about half its long term average. These conditions are similar to those observed 50 years ago, when this project began. During the summer of 2007, wolves showed signs of experiencing food shortage by scavenging moose bones from the winter of 2006–2007. During the past year, at least two (10%) wolves in the population died, and at least four pups survived to their first winter.
- Type
- Published Report
- Authors
- Vucetich, John; Peterson, Rolf
- Date of Issue
- 2008-03-31
- Publisher
- School of Forest Resources and Environmental Science, Michigan Technological University
- Units
- ISRO
- Keywords
- Aerial Survey, Ecology, gray wolf (Canis lupis), Isle Royale National Park, Mammals, Michigan, Monitoring, Moose (Alces alces), Radio Collar