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The Canadian Arctic tundra is a biogeographic designation for Northern Canada's terrain generally lying north of the tree line or boreal forest, [2] [3] [4] that corresponds with the Scandinavian Alpine tundra to the east and the Siberian Arctic tundra to the west inside the circumpolar tundra belt of the Northern Hemisphere.
This new ecozone map includes 18 terrestrial, 12 marine and 1 freshwater ecozone, the latter two of which were derived from the marine bioregions outlined by Fisheries and Oceans Canada in 2009. [8] [6] This comprehensive framework is currently in use by Environment and Climate Change Canada to determine protected area coverage of Canada's ...
Arctic vegetation is largely controlled by the mean temperature in July, the warmest month. Arctic vegetation occurs in the tundra climate, where trees cannot grow.Tundra climate has two boundaries: the snow line, where permanent year-round snow and ice are on the ground, and the tree line, where the climate becomes warm enough for trees to grow. [7]
Papaver radicatum (arctic poppy), a flowering plant of the Arctic tundra follows the sun around the sky during the 24-hour daylight of summer north of the Arctic Circle. Changing climate conditions are amplified in polar regions and northern high-latitude areas are projected to warm at twice the rate of the global average. [1]
Köppen climate types in the Northwest Territories The Northwest Territories extends for more than 1,300,000 km 2 (500,000 sq mi) and has a large climate variant from south to north. The southern part of the territory (most of the mainland portion) has a subarctic climate , while the islands and northern coast have a polar climate .
Yellowknife experiences very cold winters and mild to warm summers. The average temperature in January is around −26 °C (−15 °F) and 17 °C (63 °F) in July. [44] According to Environment and Climate Change Canada, Yellowknife has the sunniest summer in the country, averaging 1,034 hours from June to August. [46]
It has been adapted by and to other countries (such as Canada) in various forms. A plant may be described as "hardy to zone 10": this means that the plant can withstand a minimum temperature of 30 to 40 °F (−1.1 to 4.4 °C). Unless otherwise specified, in American contexts "hardiness zone" or simply "zone" usually refers to the USDA scale.
Polar ecology is the relationship between plants and animals in a polar environment. Polar environments are in the Arctic and Antarctic regions. Arctic regions are in the Northern Hemisphere, and it contains land and the islands that surrounds it.