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Tundra. In physical geography, tundra (/ ˈtʌndrə, ˈtʊn -/) 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]
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 ...
Other species found include the northern Labrador tea, Vaccinium ssp., foxtail grass and Luzula multiflora. In the Southern Arctic tundra, shrubs are more regular, consisting of dwarf birch, Arctic willow, northern Labrador tea, Dryas spp., and Vaccinium ssp. In waterlogged areas, moss, willow and sedge cover is substantial.
Alpine tundra in the Venezuelan Andes. Alpine tundra is a type of natural region or biome that does not contain trees because it is at high elevation, with an associated harsh climate. As the latitude of a location approaches the poles, the threshold elevation for alpine tundra gets lower until it reaches sea level, and alpine tundra merges ...
Setting. This ecoregion is located on the north coast of Alaska, and includes the east coast plain of Banks Island, as well as the Anderson River and Horton River plains, and the Tuktoyaktuk coast in the Northwest Territories. This is an area of low, flat, boggy coastal plains. The underlying soil of this damp Arctic coast is thick, solid ...
Tundra swans are sometimes separated in the subgenus Olor together with the other Arctic swan species. Bewick's swan was named in 1830 by William Yarrell after the engraver Thomas Bewick, who specialised in illustrations of birds and animals. [5] Cygnus is the Latin for "swan", and columbianus comes from the Columbia River, the type locality. [6]
The Canadian High Arctic Tundra ecoregion encompasses most of the northern Arctic archipelago, from much of Baffin Island, Somerset Island, and Prince of Wales Island in the south, through all islands northward to the most northern island in Canada, Ellesmere Island. [3] Much of the northern islands are covered in ice, and the climate is very ...
Arctic vegetation. About 1,702 species of plants live on the Arctic tundra, including flowering plants, short shrubs, herbs, grasses, and mosses. These plants are adapted to short, cold growing seasons. [1] They have the ability to withstand extremely cold temperatures in the winter (winter hardiness), and grow and reproduce in summer ...