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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, [2] Alpine, [2] and Antarctic. [3] Tundra vegetation is composed of dwarf shrubs, sedges, grasses, mosses, and lichens ...
The tundra is characterized by a harsh, frost-laden landscape with negative temperatures, a lack of precipitation and nutrients, and extremely short seasons. In the winter it is cold and dark, and in the summer when the snow and the top layer of permafrost melt, it is very soggy and the tundra is covered with marshes, lakes, bogs, and streams.
Alpine tundra occurs at high enough altitude at any latitude.Portions of montane grasslands and shrublands ecoregions worldwide include alpine tundra. Large regions of alpine tundra occur in the North American Cordillera and parts of the northern Appalachian Mountains in North America, the Alps and Pyrenees of Europe, the Himalaya and Karakoram of Asia, the Andes of South America, the Eastern ...
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]
Geography; Area: 98,200 km 2 (37,900 sq mi) Countries: United States; Canada; States: ... The Arctic coastal tundra is an ecoregion of the far north of North America, ...
In the south with a marginally relatively milder and wetter climate, the landscape may also feature stands of wood rush and wire rush . [ 6 ] Mammals in the ecoregion include muskox ( Ovibos moschatus ), arctic hare ( Lepus arcticus ), arctic fox ( Alopex lagopus ), caribou ( Rangifer tarandus '), Polar bears ( Ursus maritimus ), and high ...
The alpine tundra of Rocky Mountain National Park taken along the Tundra Communities Trail at approximately 12,000 feet. Region 2 is the alpine region of the park with accessible tundra trails at high elevations—an area known for its spectacular vistas. [ 36 ]
The tundra climate is a polar climate sub-type located in high latitudes and high mountains. It is classified as ET according to the Köppen climate classification . It is a climate which at least one month has an average temperature high enough to melt snow (0 °C [32 °F]), but no month with an average temperature in excess of 10 °C (50 °F ...