Isle Royale Beaver Study - 1996
Smith DW. 1996. Isle Royale Beaver Study - 1996. Yellowstone Center for Resources, WY
The number of active beaver (Castor canadensis) colonies in Isle Royale National Park was detrmined by aerial census in 1996. This is the twelfth population count in a series of surveys begun in 1962. 143 actives sites were found; same number of active beaver sites as in 1994, but a decline in colonies with food caches was found. Colonies in all habitats declined slightly, except that there was an increase in harbor colonies.
- Type
- Published Report
- Authors
- Smith, Douglas
- Date of Issue
- 1996
- Units
- ISRO
- Keywords
- Animal Studies, Beaver (Castor canadensis)