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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.
Changes in caribou migration can be problematic for Alaska Natives, who depend on caribou for food. [16] Caribou in Alaska are abundant; currently there are an estimated 950,000 in the state. [16] The populations of caribou are controlled by predators and hunters (who shoot about 22,000 caribou a year). [16]
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.
The NPRA is a more populated habitat for aquatic bird populations than the Alaska National Wildlife Reserve, with a population of 5.4 million compared to 0.4 million. [7] The NPRA supports more than a half million caribou of the Western Arctic and Teshekpuk Caribou Herds. The Western Arctic Herd calves in the Utukok, Kokolik and Colville ...
Caribou and reindeer numbers have fluctuated historically, but many herds are in decline across their range. [9] This global decline is linked to climate change for northern, migratory caribou and reindeer herds and industrial disturbance of caribou habitat for sedentary, non-migratory herds. [10]
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 ...
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 ...
The Selawik and Kobuk River deltas, located on the eastern shores of Selawik Lake and Hotham Inlet (Kobuk Lake), provide habitat for migratory bird species. The complex array of freshwater and brackish lakes, riparian areas, and wet meadows, provide habitat and large, undisturbed, tracts for a variety of wildlife species. The approximately ...