Western moose

Western Moose
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Family:	Cervidae
Genus:	Alces
Species:	A. alces
Subspecies:	A. a. andersoni
Trinomial name
Alces alces andersoni

The Western moose (Alces alces andersoni) is a subspecies of moose that inhabits boreal forests and mixed deciduous forests in most of Canada and some parts of the northern United States. It is the second largest American subspecies of moose, second to the Alaska Moose. Male Western moose are aggressive during mating season (autumn and winter) and may injure or kill with provocation.

Habitat, range, and distribution

The Western moose inhabits British Columbia, Western Ontario, eastern Yukon, Northwest Territories, southwestern Nunavut, northern Alberta, Saskatchewan, Manitoba, the upper peninsula of Michigan, northern Wisconsin, northern Minnesota, northeastern North Dakota, and some of western Alaska.

Diet

Western Moose eat terrestrial vegetation such as forbs and shoots from willow and birch trees and aquatic plants, including lilies and pondweed. Western Moose can consume up to 9,770 calories a day, about 32 kilograms (71 lb). The Western moose, like other species, lacks upper front teeth but instead has eight sharp incisors on its lower jaw. They also have a tough tongue, gums, and lips to help chew woody vegetation.

Size and weight

Male Western moose stand anywhere from 1.9 to 2.0 metres (6.2 to 6.6 ft) at the shoulder. Their antlers span 1.5 to 1.7 metres (4.9 to 5.6 ft) and they weigh anywhere from 380–720 kilograms (840–1,590 lb). Female Western moose stand at 1.8 metres (5 ft 11 in) on average, and weigh anywhere from 270 to 360 kilograms (600 to 790 lb).

Social structure and reproduction

Western moose do not form social bonds and only come into contact to mate or to battle for a mate. Elevated testosterone levels during mating season mean that bulls may attack anything during mating season, including humans, wolves, elk, and bear. They use a subtle mating call to attract females or to announce to other males that they are in the area. In the event of a fight over mating rights, bull moose risk locking their antlers, which almost always results in them both dying from starvation. Western moose females will have, on average, one or two calves at once. A female may attack if she feels that her calves are threatened, although, at around 10–11 months yearling Western moose are chased off by their mothers to fend for themselves.

Hunting

With a population of about 950,000 individuals, they are hunted every autumn and winter in both Canada and the United States. Annual quotas vary depending on local population estimates and hunter success from the previous season.