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The fact that caribou migrate long distances means they tend to have longer legs. Depending on the region in which caribou or reindeer live, their physical characteristics will vary slightly.
The Porcupine caribou is a herd or ecotype of the mainland barren-ground caribou (Rangifer arcticus arcticus, syn. R. tarandus groenlandicus [1]), the subspecies of the reindeer or caribou found in Alaska, United States, and Yukon and the Northwest Territories, Canada.
The timing of migration periods is closely linked to seasonal changes and as unpredictable climate conditions increase, barren-ground caribou must migrate over larger distances. [26] [25] Migration is dictated by the access to easily available lichen. [24] An increased distance of migration places further stress and energy expense on the caribou.
Caribou are large-scale migratory animals and have been known to travel up to 50 miles (80 km) a day. The migratory activities of caribou are usually driven by weather conditions and food availability. [16] Changes in caribou migration can be problematic for Alaska Natives, who depend on caribou for food. [16]
December 4, 2024 at 10:28 AM. ... The global reindeer population is estimated at five million, including 900,000 caribou in Alaska. Predation and disease determine reindeer herd size presently ...
In Alaska, the Western Arctic Caribou herd (490,000 strong in 2004) traverses the Brooks Range in its annual migration. The smaller Central Arctic herd (32,000 in 2002), as well as the 123,000 animal Porcupine Caribou herd, likewise migrate through the Brooks range on their annual journeys in and out of the Arctic National Wildlife Refuge. The ...
A healthy caribou population reflects a healthy boreal ecology. By safeguarding its environment, we can not only save this species and a slew of others, but we can also do our part to combat ...
Most boreal woodland caribou are not migratory. The Labrador caribou, which interbred in ancient times with barren-ground caribou, migrate long distances, while and the Torngat Mountains population of Nunavut, Quebec, Newfoundland and Labrador, and the Atlantic-Gaspésie caribou, move with the seasons to different elevations. [29]