Free Hive

This list of ecoregions in the United States provides an overview of United Statesecoregions designated by the U.S. Environmental Protection Agency (EPA) and the Commission for Environmental Cooperation (CEC). The CEC was established in 1994 by the member states of Canada, Mexico, and the United States to address regional environmental concerns under the North American Agreement on Environmental Cooperation (NAAEC), the environmental side accord to the North American Free Trade Agreement (NAFTA). The Commission's 1997 report, Ecological Regions of North America, provides a framework that may be used by government agencies, non-governmental organizations, and academic researchers as a basis for risk analysis, resource management, and environmental study of the continent's ecosystems.^[1] In the United States, the EPA and the United States Geological Survey (USGS) are the principal federal agencies working with the CEC to define and map ecoregions. Ecoregions may be identified by similarities in geology, physiography, vegetation, climate, soils, land use, wildlife distributions, and hydrology.

• Type 1 Thinking Style
• Type 1 The Reformer

Fifth definition, next after the fourth; being the ordinal number for five. In the sixth generation the Fairy type was added and two Steel resistances were removed. Below are the two previous type charts, as used in Generation 1 (Red/Blue/Yellow) and Generations 2-5 (Gold/Silver through Black 2/White 2). The current (new) type chart is on the main Type Chart page.

The classification system has four levels, but only Levels I and III are shown on this list. Level I divides North America into 15 broad ecoregions; of these, 12 lie partly or wholly within the United States. Fifty Level II regions were created to allow for a narrower delineation of Level I areas. Three level I areas were not subdivided for level 2.^[2]Level III subdivides the continent into 182 smaller ecoregions; of these, 104 lie partly or wholly with the United States.^[1][3]Level IV is a further subdivision of Level III ecoregions. Level IV mapping is still underway but is complete across most of the United States. For an example of Level IV data, see List of ecoregions in Oregon and the associated articles. The classification system excludes the U.S. state of Hawaii, which is not part of the North American continent.

Type 1 Thinking Style

1. Enneagram Type Five (the Investigator) What Each Type Brings to the Relationship Enneagram Ones and Fives are alike in many ways, particularly in their reticence to show their emotions directly and in their identification with their minds.
2. Enneagram Type 5: Observer, Investigator, Thinker, Sage or Voyeur. Overview You want to be intelligent, informed, knowledgeable and perceptive. More importantly, you want to be self-sufficient and not have the entanglements of obligation. You see yourself as intellectual, dispassionate and investigative.

Ecoregions in the United States[edit]

Marine West Coast Forest[edit]

• 111 Ahklun Mountains and Kilbuck Mountains
• 113 Alaska Peninsula Mountains
• 119 Pacific Coastal Mountains
• 120 Coastal Western Hemlock-Sitka Spruce Forests

The corresponding CEC ecoregion in Canada is called the Pacific Maritime Ecozone.

Western Forested Mountains[edit]

• 16 Idaho Batholith

The corresponding CEC ecoregion in Canada is called the Montane Cordillera Ecozone.

Mediterranean California[edit]

North American Deserts[edit]

• 18 Wyoming Basin
• 20 Colorado Plateaus
• 22 Arizona/New Mexico Plateau

Temperate Sierras[edit]

• 23 Arizona/New Mexico Mountains

Great Plains[edit]

• 25 Western High Plains
• 26 Southwestern Tablelands
• 27 Central Great Plains
• 40 Central Irregular Plains
• 42 Northwestern Glaciated Plains
• 43 Northwestern Great Plains
• 46 Northern Glaciated Plains
• 47 Western Corn Belt Plains
• 48 Lake Agassiz Plain

Type 1 The Reformer

The corresponding name in Canada for the same ecoregion is the Prairies Ecozone.

Eastern Temperate Forest[edit]

These forests stretch from the Southern Appalachians towards Canada, up to the northern Midwest. For a general description of these forests, refer to Temperate Deciduous Forest. The standard reference is The Deciduous Forest of Eastern North America.^[4] The adjoining forests in Canada are generally referred to as the Mixedwood Plains Ecozone or the Great Lakes-St.Lawrence Forest Region.

Northern Forests[edit]

The corresponding name in Canada for the same ecoregions are the Boreal Shield and the Atlantic Maritime Ecozones.

Tropical Wet Forests[edit]

Southern Semi-Arid Highlands[edit]

Taiga[edit]

Tropical and Subtropical coniferous forest[edit]

Tundra[edit]

Listings by state[edit]

See also[edit]

• Ecoregions defined by the Commission for Environmental Cooperation and partner agencies:
• The conservation group World Wildlife Fund maintains an alternate classification system:

References[edit]

1. ^ ^ab'Ecological Regions of North America: Toward a Common Perspective'(PDF). Commission for Environmental Cooperation. 1997. Archived from the original(PDF) on 2009-01-09. Retrieved 2008-04-10.
2. ^'Western Ecology Division'. US EPA. Retrieved 2015-05-31.
3. ^'Ecoregion Maps and GIS Resources'. United States Environmental Protection Agency. Retrieved 2008-04-10.
4. ^Braun, E. L. 1950. The Deciduous Forest of Eastern North America. New York: Hafner.

External links[edit]

• State maps of US Level III Ecoregions (Select a state. Then select 'Level III Ecoregions')