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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 ...
Alpine tundra. Hikers traversing the Franconia Ridge in the White Mountains of New Hampshire, much of which is in the alpine zone. 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 ...
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 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.
The tundra wolf (Canis lupus albus), also known as the Turukhan wolf, [3] is a subspecies of grey wolf native to Eurasia 's tundra and forest -tundra zones from Finland to the Kamchatka Peninsula. [3] It was first described in 1792 by Robert Kerr, who described it as living around the Yenisei, and of having a highly valued pelt.
The Brooks–British Range tundra extends east and west along the Brooks Range which runs across northern Alaska and northeastern Yukon Territory. The Brooks Range is divided into western and eastern sections by the Anaktuvuk Pass. The Western Brooks Range is relatively low, while the Eastern Brooks Range is higher and more rugged, with larger ...
The Alaskan tundra wolf ( Canis lupus tundrarum ), also known as the barren-ground wolf, [ 3] is a North American subspecies of gray wolf native to the barren grounds of the Arctic coastal tundra region. It was named in 1912 by Gerrit Smith Miller Jr., who noted that it closely approaches the Great Plains wolf in skull and tooth morphology ...