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Ecological Regions of the Northwest Territories, Southern Arctic
註釋"A vast circumpolar complex of tundra and polar deserts lies north of the tree line in Canada, Alaska, Russia and Europe. In Canada, the Southern Arctic includes the southern part of this complex, forming a wide belt with the southern boundary defined broadly by tree line, extending north within the Northwest Territories to the Arctic coast. It is home to herds of barren-ground caribou and muskox that range across sparse to continuous shrub, herb and lichen tundra on permanently frozen soils, to barren-ground grizzlies, wolves and other carnivores and to upland birds and waterfowl.