Most moose make seasonal movements for calving, rutting, and wintering areas. They travel anywhere from only a few miles to as many as 60 miles during these transitions. Deep crusted snow can lead to malnutrition and subsequent death of hundreds of moose and decrease the survival of the succeeding year's calves. Moose are killed by wolves and black and brown bears. Black bears take moose calves in May and June.
Brown bears kill calves and adults the entire time the bears are out of their winter dens.
Wolves kill moose throughout the year. Predation limits the growth of many moose populations in Alaska. At one time professional hunters supplied moose meat to mining camps. Historically, moose were an important source of food, clothing, and implements to Athapaskan Indians dwelling along the major rivers. Today, Alaskans and nonresidents annually harvest approximately 6,000 to 8,000 moose some 3.5 million pounds of meat.