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The Tundra Angela Duncan.

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Presentation on theme: "The Tundra Angela Duncan."— Presentation transcript:

1 The Tundra Angela Duncan

2 Geography Located above the Arctic Circle
Stretches from northern Scandinavia, across Russia, Siberia, Northern Alaska, and finally to Canada. Hugs the northern most ring of the planet

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4 Climate Generally cold and very dry Short summers 6 to 10 weeks long
Never gets warmer than 50°F Cold winds continuously blow across the landscape Average temperature is around -30°F

5 Soils Topsoil composed mostly of humus due to slow decomposition rates
Layer of permafrost underneath Constant freezing and thawing of the soil brings rocks to the surface Polygonal pattern of stones on the surface

6 Biology Vegetation: Lichens, Mosses, Grasses, Herbaceous Plants, Small Shrubs Land Animals: Grizzly Bears, Gray Wolves, Caribou, Oxen, Weasels, Lemmings, Arctic and Red Foxes, Moose Sea Animals: Walruses, Orcas, Beluga Whales, Sea Lions Birds: Snowy Owls, Golden Eagles, Bald Eagles, Arctic Geese, Puffins, Arctic Loons

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8 Human Influence Used to be the only biomes untainted by humankind
Drilling for Oil Pesticides from nearby civilization Chernobyl Disaster 1986 Ukraine Great explosion of the power plant Massive amounts of radiation released (cesium-137) Covered the Norwegian tundra in the form of rainfall Damage to the food chain

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10 The Tundra


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