Potential Effects of Winter Navigation on Movements of Large Land Mammals in Eastern Lake Superior and St. Mary's River Area. 1980 - 1981 Supplemental Report. Great Lakes-St. Lawrence Seaway Navigation Season Extension Program
Abstract
Field studies were conducted during the winter of 1980-81 to supplement studies conducted the previous winter on mammals crossing the ice of Whitefish Bay and the St. Mary's River. The objectives of the supplemental study were to augment information on possible variability in numbers, locations, and species of animals crossing the ice, to obtain more detailed information on densities of wolves in Ontario, to describe numbers and movements of deer in the population wintering on Neebish Island, to assess the impact of winter shipping on the wolves and deer, and to compare such impact with other causes of mortality. Methods used included aerial and ground surveys of tracks, interviews with Canadian trappers on locations and numbers of wolves, radio-tagging and releasing five deer, interviews with Neebish Island residents on hunting mortality, and systematic survey for dead deer and browse available to deer.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1982
- Accession Number
- ADA203724
Entities
People
- Michael L. Amacher
- William F. Jensen
- William L. Robinson
Organizations
- Northern Michigan University