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The Taiga Shield Ecozone, as defined by the Commission for Environmental Cooperation (CEC), is an ecozone which stretches across Canada's subarctic region. Some regions exhibit exposed Precambrian bedrock of the Canadian Shield , the oldest of the world's geological formations. [ 1 ]
Northern Canadian Shield taiga is a taiga ecoregion located in northern Canada, stretching from Great Bear Lake in the Northwest Territories to Hudson Bay in eastern Nunavut. The region supports conifer forests to its northern edge, where the territory grades into tundra .
Beaver, Canadian lynx, bobcat, wolverine, and snowshoe hare are all keystone species in the taiga area. These species are keystone because they have learned to adapt to the cold climate of the area and are able to survive year-round. These species survive year-round in taiga by changing fur color and growing extra fur.
This is a taiga ecoregion and therefore stops at the treeline, beyond which is tundra. This is a rugged rocky landscape including an area fjords on the Atlantic coast of Labrador. The hills and plateaus are dotted with many lakes and string bogs , and patches of tundra on the Mealy Mountains and elsewhere.
The taiga is dominated by coniferous trees, notably balsam fir and black spruce, though the deciduous white birch, trembling aspen and mountain ash are also present. [20] The most common animals are the moose, American black bear, Canada lynx, red fox, pine marten, short-tailed weasel, and American mink.
Its northern borders are with the Southern Arctic ecozone in northeastern Northwest Territories, and the Arctic Archipelago Marine ecozone at the delta of Canada's largest river, the Mackenzie. [ 4 ] The ecozone consists primarily of strata of limestone , shale , and sandstone sedimentary rocks , [ 5 ] and has formed wide flat plains with ...
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The ecoregion stretches 1,200 km from the Great Slave Lake in the south to the mouth of the Mackenzie River at the Arctic Ocean in the north. [2] The river valley is one of broad lowlands, with plateaus on the edges and highlands in the southwest. The median elevation is 348 metres (1,142 ft), and the highest point is 2,208 metres (7,244 ft). [3]