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The Tundra of North America is a Level I ecoregion of North America designated by the Commission for Environmental Cooperation (CEC) in its North American Environmental Atlas. One of the planet's most recent biomes, a result of the last ice age only 10,000 years ago, the tundra contains unique flora and fauna formed during the last glaciation ...
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.
In physical geography, tundra (/ ˈ t ʌ n d r ə, ˈ t ʊ n-/) is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. There are three regions and associated types of tundra: Arctic tundra, [2] alpine tundra, [2] and Antarctic tundra. [3] Tundra vegetation is composed of dwarf shrubs, sedges, grasses ...
Arctic ecology is the scientific study of the relationships between biotic and abiotic factors in the arctic, the region north of the Arctic Circle (66° 33’N). [1] This region is characterized by two biomes: taiga (or boreal forest) and tundra. [2] While the taiga has a more moderate climate and permits a diversity of both non-vascular and ...
The expedition came as several countries are trying to extend their rights over sections of the Arctic Ocean floor. Both Norway and Denmark are carrying out surveys to this end. Vladimir Putin made a speech on a nuclear icebreaker on 3 May 2007, urging greater efforts to secure Russia's "strategic, economic, scientific and defense interests" in ...
The Arctic region is a unique area among Earth's ecosystems. The cultures in the region and the Arctic indigenous peoples have adapted to its cold and extreme conditions. Life in the Arctic includes zooplankton and phytoplankton, fish and marine mammals, birds, land animals, plants and human societies. [3]
The North American Arctic is composed of the northern polar regions of Alaska (USA), Northern Canada and Greenland. [1] Major bodies of water include the Arctic Ocean, Hudson Bay, the Gulf of Alaska and North Atlantic Ocean. [2] The North American Arctic lies above the Arctic Circle. [3] It is part of the Arctic, which is the northernmost ...
1104. Arctic Foothills Tundra. The Arctic foothills tundra is an ecoregion of the far north of North America, lying inland from the north coast of Alaska. This is permafrost tundra with an average annual temperature below freezing.