Wolf Population Trajectory in the East-central Superior National Forest
Wolves (Canis lupus) are on the endangered species list in several states. This long-term study uses Very High Frequency (VHF) and Global Positioning Satellite (GPS) radio collars to elucidate several aspects of wolf ecology and behavior. The backbone of the project is the monitoring of the wolf population trajectory over the long term. Members of 8–12 wolf packs in a standard study area are located weekly by GPS and/or aerial VHF tracking, and each year in winter the numbers in each pack are aerially counted.