Search results
Results from the WOW.Com Content Network
Tundra exploration vehicles used for oil development and polar bear tours ("an eco-friendly" industry) leave traces of tire marks for 20-plus years after a disturbance occurs. Other factors such as high CO 2 emissions from tourism and from warming tundra soil, create a positive feedback loop, accelerating changes to the tundra.
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 ...
Image:BlankMap-World-v6-Borders.png – Version of v6 with borders around each country. Image:BlankMap-World-v7.png – Version of v4 with thin lines to join areas owned by the same country for one-click colouring and with dots for dependencies as well as sovereign territories (merged content from v5 and v6). Image:BlankMap-World-v7-Borders.png ...
This area supports wetland plants especially sedges and grasses, mosses and lichens, and right on the coast there are peat bogs.Trees such as dwarf birch, willows, northern Labrador tea and alders grow in the warmer areas of the region, the Mackenzie River delta and the Yukon coast.
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.
This ecoregion consists of a long range of high rocky mountains of the Alaska Interior running north from the bottom of the Alaska Peninsula, eastwards taking in the Alaska Range and southwards to include the Wrangell and Saint Elias Mountains in eastern Alaska on the Canada–US border as far as Yakutat Bay.
A list of tundra ecoregions from the World Wide Fund for Nature (WWF) includes: Antarctic realm [1] Adelie Land tundra: Adélie Land: Central South Antarctic ...