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The barren-ground caribou (Rangifer tarandus groenlandicus; but subject to a recent taxonomic revision) is a subspecies of the reindeer (or the caribou in North America) that is found in the Canadian territories of Nunavut and the Northwest Territories, in northern Alaska and in south-western Greenland.
Large herds will migrate up to 400 miles between the summer and winter months. Caribou have large antlers as well as large concave hoofs. Their wide feet act as paddles when they swim.
Alaska's polar bear populations are concentrated along its Arctic coastlines. In the winter, they are most common in the Kuskokwim Delta, St. Matthew Island, and at the southernmost portion of St. Lawrence Island. During the summer months, they migrate to the coastlines of the Arctic Ocean and the Chukchi Sea. [10]
Greenland caribou, found in southwestern Greenland, are "mixed migrators" and many individuals do not migrate; those that do migrate less than 60 km. [171] Unlike the individual-tending mating system, aggregated rutting, synchronized calving and aggregated post-calving of barren-ground caribou, Greenland caribou have a harem-defense mating ...
The Porcupine Caribou herd (PCH)—formerly R. ogilviensis, [22] now considered a herd of barren-ground caribou, R. t. groenlandicus [16] —in northwest Canada and northeast Alaska migrate 1,500 miles (2,400 km) annually from their winter range in the boreal forests of Alaska and Yukon northwest Canada over the mountains boreal forests to ...
Reindeer live in the far northern regions of Europe, North America, and Asia.They enjoy colder climates like tundra and boreal forests. We can find them in northern countries, which include:
The arctic tundra often lacks sunshine. Summer days last 24 hours, yet the sun remains low on the horizon. During the winter, the opposite occurs, and the entire landscape is dark.
Alaska is home to the Rangifer tarandus granti subspecies of caribou. [49] Caribou in Alaska generally are found in tundra and mountain regions, where there are few trees. However, many herds spend the winter months in the boreal forest areas. [49] Caribou in Alaska are abundant; currently there are an estimated 950,000 in the state. [49]