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  2. Tundra - Wikipedia

    en.wikipedia.org/wiki/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 tundra, [2] alpine tundra, [2] and Antarctic tundra. [3] Tundra vegetation is composed of dwarf shrubs, sedges, grasses ...

  3. Tundra of North America - Wikipedia

    en.wikipedia.org/wiki/Tundra_of_North_America

    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.

  4. Alpine tundra - Wikipedia

    en.wikipedia.org/wiki/Alpine_tundra

    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 ...

  5. Interior Yukon–Alaska alpine tundra - Wikipedia

    en.wikipedia.org/wiki/Interior_Yukon–Alaska...

    The Interior Yukon–Alaska alpine tundra ecoregion (WWF ID: NA1111) covers alpine, sub-alpine, and boreal forest areas along the cordillera (chain of mountain ranges) of Interior Alaska and south-central Yukon Territory. Geologically, they are the disjunct uplands of the Yukon–Tanana terrane plus a southern extension of the Brooks Range. The ...

  6. Arctic coastal tundra - Wikipedia

    en.wikipedia.org/wiki/Arctic_coastal_tundra

    The Arctic coastal tundra is an ecoregion of the far north of North America, an important breeding ground for a great deal of wildlife. Setting

  7. Pacific Coastal Mountain icefields and tundra - Wikipedia

    en.wikipedia.org/wiki/Pacific_Coastal_Mountain...

    At higher elevations this ecoregion has a tundra climate (Köppen ET ) with cold summers and very cold winters. Annual precipitation ranges from about 2,000 mm (79 in) to over 7,000 mm (280 in), the majority of which falls as snow. The mean annual temperature is -0.5°C (31.1°F), with an average summer temperature of 10°C (50°F) and an ...

  8. Scandinavian montane birch forest and grasslands - Wikipedia

    en.wikipedia.org/wiki/Scandinavian_Montane_Birch...

    At lower altitude is low alpine tundra with continuous plant cover; dwarf birch and willows up to 1 m tall and grasslands, as well as numerous lakes and bogs. At still lower altitude is the adjacent montane birch zone with mountain downy birch ( Betula pubescens ); some stunted spruce and pine , and many lakes and bogs.

  9. List of tundra ecoregions - Wikipedia

    en.wikipedia.org/wiki/List_of_tundra_ecoregions

    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 ...