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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.
Both caribou and reindeer have the same scientific name, Rangifer tarandus, and are of the same species. The key thing that differentiates reindeer from caribou is the fact that a reindeer is ...
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 largest herd in North America is known as the Porcupine Caribou herd, with a population of over 200,000 reindeer recorded since 2017. Although other herds have seen a decline in their numbers ...
All reindeer and caribou species currently fall under the same species, Rangifer tarandus, and in one of more than a dozen different subspecies. The subspecies native to North America are called ...
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 ...
Unlike many other barren-ground caribou, the Porcupine caribou is stable at relatively high numbers, but the 2013 photo census was not counted by January 2014. The peak population in 1989 of 178,000 animals was followed by a decline by 2001 to 123,000. By 2010, it recovered to 169,000. [32] [26]
This region provides calving habitat for four herds of caribou, the Western Arctic, Teshekpuk, Central Arctic, and Porcupine caribou herds. Another key species is the muskox of Banks Island and the Arctic National Wildlife Refuge coast.