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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.
Boreal woodland caribou are also known as southern mountain caribou, woodland caribou, and forest-dwelling caribou. Mountain caribou are uniquely adapted to live in old-growth forests. The mountain caribou diet consists of tree-dwelling lichens predominantly. They are unique in this aspect as in the far northern regions of their habitat zones ...
The global reindeer population is estimated at five million, including 900,000 caribou in Alaska. Predation and disease determine reindeer herd size presently. Overhunting has historically ...
The revision returned the name of Arctic caribou to its original R. arcticus, with the nominate subspecies being barren-ground caribou, R. a. arcticus, and returned four western montane ecotypes to subspecies of Arctic caribou: Selkirk Mountain caribou, R. a. montanus, Rocky Mountain caribou, R. a. fortidens, Osborn's caribou, R. a. osborni ...
Caribou are found in the wild, whereas reindeer are typically domesticated (caribou in Alaska that have been domesticated are also referred to as reindeer). Because of that, they are more tame and ...
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 ...
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.
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