The Dolphin-Union Caribou herd, locally known as island caribou,[REF][REF] are a migratory population of barren-ground caribou, Rangifer tarandus groenlandicus, that occupy Victoria Island in Canada's High Arctic and the nearby mainland.
The subspecies R. t. caribou commonly known as woodland caribou, is divided into ecotypes: boreal woodland caribou, (also known as forest-dwelling woodland caribou), mountain woodland caribou and migratory woodland caribou).