Ecoregions of North America-Level I (CEC)
Ecoregions of North America-Level I (CEC)
EcologyNorth America has been broken down into 15 broad, level I ecological regions. These highlight major ecological areas and provide the broad backdrop to the ecological mosaic of the continent, putting it in context at global or intercontinental scales.
Level I ecoregions are characterized as follows:
- number of ecological regions: 15
- scale of presentation: approximately 1:50 million
- continental perspectives
- determination of the areas composing the regions through satellite imagery and appropriate natural resource source maps at broad scales (approximately 1:40 million – 1:50 million)
Level I ecological regions are:
- Arctic Cordillera
- Tundra
- Taiga
- Hudson Plains
- Northern Forests
- Northwestern Forested Mountains
- Marine West Coast Forests
- Eastern Temperate Forests
- Great Plains
- North American Deserts
- Mediterranean California
- Southern Semi-Arid Highlands
- Temperate Sierras
- Tropical Dry Forests
- Tropical Humid Forests
See also:
- Level II ecoregions of North America
- Level III ecoregions of the United States
- Level IV ecoregions of the United States
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Disclaimer: This article is taken wholly from, or contains information that was originally published by, the Commission for Environmental Cooperation. Topic editors and authors for the Encyclopedia of Earth may have edited its content or added new information. The use of information from the Commission for Environmental Cooperation should not be construed as support for or endorsement by that organization for any new information added by EoE personnel, or for any editing of the original content. |
Citation
Commission for Environmental Cooperation (Lead Author);Mark McGinley (Topic Editor) "Ecoregions of North America-Level I (CEC)". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth February 3, 2009; Last revised Date February 3, 2009; Retrieved February 10, 2012 <http://www.eoearth.org/article/Ecoregions_of_North_America-Level_I_%28CEC%29>
The Author
The Commission for Environmental Cooperation (CEC) is an international organization created by Canada, Mexico and the United States under the North American Agreement on Environmental Cooperation (NAAEC). The CEC was established to address regional environmental concerns, help prevent potential trade and environmental conflicts, and to promote the effective enforcement of environmental law. The Agreement complements the environmental provisions of the North American Free Trade Agreement (NAFTA). ... (Full Bio)
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