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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.
These caribou were at very low densities during the mid-20th century and only started recovering about 30 years ago. The main distribution during the calving and fall seasons is on Victoria Island and since the 1960s Dolphin-Union Caribou resumed their migration to winter on the Nunavut-NWT mainland.
The reindeer or caribou [a] ... old bulls' antlers fall off in late December, ... During the spring migration, smaller herds will group together to form larger herds ...
Male Caribou with a beautiful head of antlers on the fall tundra above the Toklat River, Alaska Range. ©Jeff McGraw/Shutterstock.com Although reindeer are native to the arctic, they can live in ...
Selkirk Mountain caribou (formerly thought to be an ecotype of woodland caribou, Rangifer tarandus caribou) was considered endangered in the United States in Idaho and Washington. R. t. pearyi is on the IUCN endangered list. The woodland caribou is highly endangered throughout its distribution. [19]
The Western Arctic Caribou Herd population is down to an estimated 188,000 animals, reflecting a 23% decrease over the past two years, according to the Alaska Department of Fish and Game. The ...
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.
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 218,000 compared 100,000 ...