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Grant's caribou was described as a small, pale form occupying a limited range at the west end of the Alaska Peninsula and nearby islands. Originally described as Rangifer granti (Allen, 1902), [ 6 ] it was brought under barren-ground caribou as R. arcticus granti [ 7 ] [ 8 ] [ 9 ] because its size and form were closer to the barren-ground type ...
There are four migratory herds of barren-ground caribou, R. tarandus groenlandicus, in Alaska: the Western Arctic herd, the Teshekpuk Lake herd, the Central Arctic herd and the Porcupine caribou herd (named for a river that flows from Yukon into Alaska), the last of which is transnational as its migratory range extends far into Canada's north ...
It includes the Porcupine caribou of Yukon and Alaska. [2] [3] The barren-ground caribou is a medium-sized caribou, smaller and lighter-colored [4] than the boreal woodland caribou, with the females weighing around 90 kg (200 lb) and the males around 150 kg (330 lb). However, on some of the smaller islands, the average weight may be less.
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 ...
The southern end of the Selkirk Mountains was the home of the last naturally occurring caribou herd in the contiguous United States, [5] the South Selkirk mountain caribou. The herd was cross boundary, spending some time in extreme northern Idaho , eastern Washington , and British Columbia , Canada.
The migratory woodland caribou refers to two herds of Rangifer tarandus (known as caribou in North America) that are included in the migratory woodland ecotype of the subspecies Rangifer tarandus caribou or woodland caribou [1] [2] that live in Nunavik, Quebec, and Labrador: the Leaf River caribou herd (LRCH) [3] [4] and the George River caribou herd (GRCH) south of Ungava Bay.
Plus, find out why *some* caribou are called reindeer.
Caribou herd ranges. Porcupine caribou's 1,500 miles (2,400 km) annual land migration between their winter range in the boreal forests of Alaska and northwest Canada over the mountains to the coastal plain and their calving grounds on the Beaufort Sea coastal plain, [45] is the longest of any land mammal on earth. In 2019, the herd size was ...