Beaver Studies, Isle Royale National Park, 1984
Shelton PC. 1985. Beaver Studies, Isle Royale National Park, 1984. Clinch Valley College of the University of Virginia. Wise, VA
Report has a table summarizing beaver surveys from 1962 to 1984. Fluctuations in beaver numbers during this period are thought to be influenced primarily by wolf predation. The beaver population in 1984 rose to 204 animals. The correlation between beaver and wolf numbers is remarkable, although the role of beavers in influencing wolf numbers is less clear. Distribution of beavers by habitat indicates that most of the change in population was in stream-dwelling beavers; harbor beavers continue to decline. Trapping was not extensive enough to indicate whether there were any changes in number of beavers per colony.
- Type
- Published Report
- Authors
- Shelton, Philip
- Date of Issue
- 1985
- Publisher
- Clinch Valley College of the University of Virginia
- Units
- ISRO
- Keywords
- Animal Studies, Beaver (Castor canadensis), Map