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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. [5]
Muskeg can grow atop bodies of water, especially small ponds and streams. Because of the water beneath, the muskeg surface sometimes moves and ripples underfoot. Thinner patches can collapse under significant weight, and cause larger animals to fall-through and become trapped underneath, drowning if an escape route is not found.
The Chukchi population is found off in the western part of Alaska near the Wrangell Islands, and the Beaufort Sea population is located near Alaska's North Slope. [ 10 ] Until the late 1940s, polar bears were hunted almost exclusively for subsistence by Inupiats and dogs teams, though from the late 1940s until 1972, sport hunting by others took ...
90% of natural habitat remains intact, except for the vicinity of Utqiaġvik, Alaska and the oil fields of Prudhoe Bay, Alaska and Kuparuk which are expanding along the coast and may in future spread into the Arctic National Wildlife Refuge, which is the only major protected area on this coast (see Arctic Refuge drilling controversy), and on ...
The Porcupine Caribou herd (PCH)—formerly R. ogilviensis, [22] now considered a herd of barren-ground caribou, R. t. groenlandicus [16] —in northwest Canada and northeast Alaska migrate 1,500 miles (2,400 km) annually from their winter range in the boreal forests of Alaska and Yukon northwest Canada over the mountains boreal forests to ...
The adversity of soil and climatic conditions proves to low production levels, as well as little biomass accumulation due to slow rates of nutrient release in cold and wet soils, specifically as a result of limited nitrogen and phosphorus (Nadelhoffer et al. 1996) Additionally, there are low temperatures and strong winds in the tundra causing most vegetation to be dominated by woody plants ...
A National Park Service report on Alaska's glaciers noted glaciers within Alaska national parks shrank 8% between the 1950s and early 2000s and glacier-covered area across the state decreased by ...
Ellesmere Island is the northernmost island of the Arctic Archipelago in Canada's Far North and one of the world's northernmost land masses. It is exceeded in this regard only by neighbouring Greenland, which extends about 60 km (37 mi) closer to the north pole.