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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.
The reindeer or caribou [a] (Rangifer tarandus) [5] is a species of deer with circumpolar distribution, native to Arctic, subarctic, tundra, boreal, and mountainous regions of Northern Europe, Siberia, and North America. [2] It is the only representative of the genus Rangifer. More recent studies suggest the splitting of reindeer and caribou ...
They migrate over 1,500 mi (2,400 km) a year between their winter range and calving grounds at the Beaufort Sea, the longest land migration route of any land mammal on Earth. Their range spans the Alaska-Yukon border and is a valued resource cooperatively managed by the Alaska Department of Fish and Game, Canadian wildlife agencies and local ...
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.
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.
During the summer months, they migrate to the coastlines of the Arctic Ocean and the Chukchi Sea. [10] There are two main polar bear populations in Alaska. The Chukchi population is found off in the western part of Alaska near the Wrangell Islands , and the Beaufort Sea population is located near Alaska's North Slope .
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:
According to the Köppen climate classification system, Kobuk Valley National Park has a Subarctic climate (Dfc) with cool summers and year around precipitation. Dfc climates are defined by their coldest month averaging below 0 °C (32 °F), 1–3 months averaging above 10 °C (50 °F), all months with average temperatures below 22 °C (71.6 °F), and no significant precipitation difference ...