Monday, January 2, 2012

Biotic and Abiotic Features in the Tundra

Abiotic Factors- Physical, or nonliving, factors that shapes an ecosystem 
  • Strong Winds
  • little precipitation (rainfall)
  • short summer days
  • very long and cold winters
  • poor soil
  • permafrost-a layer of permanently frozen subsoil
Biotic Factors- biological influences on organisms within an ecosystem
  • Plants like Heaths and mosses have to adapt to the very long and cold winters because the sun does not come up in the winter
  • Wildlife like arctic tundra animals include snowy owls, reindeer, polar bears, white foxes, lemmings, arctic hares, wolverines, caribou, migrating birds, mosquitoes, and black flies.

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