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  2. Alpine tundra - Wikipedia

    en.wikipedia.org/wiki/Alpine_tundra

    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 with polar tundra .

  3. 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 ...

  4. 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.

  5. Iceland boreal birch forests and alpine tundra - Wikipedia

    en.wikipedia.org/wiki/Iceland_boreal_birch...

    Because the Gulf Stream has a moderating effect, portions of Iceland have an Oceanic climate (subpolar variety) (Köppen climate classification: Cfc).But most of the ecoregion is Tundra climate (Köppen climate classification: ET), a local climate in 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 ...

  6. Ecology of the Rocky Mountains - Wikipedia

    en.wikipedia.org/wiki/Ecology_of_the_Rocky_Mountains

    Mount Elbert rises through multiple biotic zones, with alpine tundra at its peak.. The Rocky Mountains range in latitude between the Liard River in British Columbia (at 59° N) and the Rio Grande in New Mexico (at 35° N), and in height up to the highest peak, Mount Elbert at 14,440 feet (4,400 m), taking in great valleys such as the Rocky Mountain Trench and San Luis Valley.

  7. Tundra of North America - Wikipedia

    en.wikipedia.org/wiki/Tundra_of_North_America

    The adversity of soil and climatic conditions proves to low production levels, as well as little biomass accumulation due to slow rates of nutrient release in cold and wet soils, specifically as a result of limited nitrogen and phosphorus (Nadelhoffer et al. 1996) Additionally, there are low temperatures and strong winds in the tundra causing most vegetation to be dominated by woody plants ...

  8. List of tundra ecoregions - Wikipedia

    en.wikipedia.org/wiki/List_of_tundra_ecoregions

    Ellsworth Mountains tundra: Ellsworth Mountains: Enderby Land tundra: Enderby Land: Marie Byrd Land tundra: Marie Byrd Land: North Victoria Land tundra: Victoria Land: Northeast Antarctic Peninsula tundra: Antarctic Peninsula: Northwest Antarctic Peninsula tundra: Antarctic Peninsula: Prince Charles Mountains tundra: Prince Charles Mountains ...

  9. Food web - Wikipedia

    en.wikipedia.org/wiki/Food_web

    A freshwater aquatic food web. The blue arrows show a complete food chain (algae → daphnia → gizzard shad → largemouth bass → great blue heron). A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.