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== Enllaços externs ==
== Enllaços externs ==
{{commonscat}}
{{commonscat}}
+{{DGLV|Tundra}}
* [http://web.archive.org/web/http://www.panda.org/about_wwf/where_we_work/ecoregions/about/habitat_types/selecting_terrestrial_ecoregions/habitat11.cfm Ecorregiones de tundra, WWF.]
* [http://web.archive.org/web/http://www.panda.org/about_wwf/where_we_work/ecoregions/about/habitat_types/selecting_terrestrial_ecoregions/habitat11.cfm Ecorregiones de tundra, WWF.]
* [http://www.cotf.edu/ete/modules/msese/earthsysflr/tundra.html El bioma ártico, en Classroom of the Future.]
* [http://www.cotf.edu/ete/modules/msese/earthsysflr/tundra.html El bioma ártico, en Classroom of the Future.]