ecoregions of the us - EAS
- explore.globalcreations.comAt Level III, the continental United States contains 104 regions whereas the conterminous United States has 85 (U.S. Environmental Protection Agency, 2005). Level IV ecoregions are further subdivisions of Level III ecoregions.gaftp.epa.gov/epadatacommons/ORD/Ecoregions/us/Eco_Level_III_US.html
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- https://www.epa.gov/eco-research/ecoregions
- Ecoregions are areas where ecosystems (and the type, quality, and quantity of environmental resources) are generally similar. This ecoregion framework is derived from Omernik (1987) and from mapping done in collaboration with EPA regional offices, other Federal agencies, state resource management agencies, and neighboring North American countries. ...
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- https://www.fs.usda.gov/rmrs/ecoregions-united-states
Ecoregions of the United States The largest ecosystems are domains, which are groups of related climates and which are differentiated based on... Divisions represent the climates within domains and are differentiated based on precipitation levels …
- https://www.epa.gov/eco-research/ecoregions-north-america
- North America has been divided 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. Viewing the ecological hierarchy at this scale provides a context for seeing global or intercontinental...
- https://www.epa.gov/eco-research/level-iii-and-iv...
Jun 07, 2021 · US Level III Ecoregions Metadata and US Level III Ecoregions Symbology. Instructions for applying symbology to ecoregions. Maps (PDF Format): US Level III Ecoregions--30" X 23" (PDF, 3.8 mb) US Level III Ecoregions with Hillshading--30" X 23" (PDF, 16 mb) US Level III Ecoregions with North America Hillshading--30" X 23" (PDF, 33.7 mb) Ecoregion ...
- https://www.fws.gov/wetlands/Documents/Description...
A map titled "Ecoregions of the United States," published in 1976, shows an initial attempt to systematically divide the country into ecosystem regions. This map, along with a brief narrative that described the approach and development of the system, was prepared by the Forest Service for the Interior Department's Fish and Wildlife
- https://www.epa.gov/eco-research/level-iii-and-iv-ecoregions-state
Mar 22, 2021 · Make selections from the dropdown select box or from the clickable map of Level III and IV Ecoregions by U.S. state. Select a state for access to Level III and IV maps, GIS data, and descriptive information. Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine …
- https://en.wikipedia.org/wiki/List_of_ecoregions_in_the_United_States_(EPA)
Ecoregions in the United States Marine West Coast Forest. The corresponding CEC ecoregion in Canada is called the Pacific Maritime Ecozone . Western Forested Mountains. The corresponding CEC ecoregion in Canada is called the Montane Cordillera Ecozone . Mediterranean California. North American ...
- https://www.usgs.gov/.../science/ecoregions
Oct 19, 2019 · Science. Ecoregions have been developed and are being used to study the place dependency of environmental processes, including anthropogenic transformations of the land surface. Ecoregions are also the basis for reporting on the status and trends of land cover and land cover change. As a geographic framework that is useful for studying the response of the …
- https://www.fs.fed.us/land/pubs/ecoregions/ecoregions.html
Ecoregions of the United States. 100 Polar Domain. 120 Tundra Division. 124 Arctic Tundra Province. 125 Bering Tundra (Norther) Province. 126 Bering Tundra (Southern) Province.
