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Level IV Ecoregions of the Conterminous United States

Dates

Publication Date
Time Period
2013-04-16

Citation

US Environmental Protection Agency, 20130416, Level IV Ecoregions of the Conterminous United States: U.S. EPA Office of Research & Development (ORD) - National Health and Environmental Effects Research Laboratory (NHEERL).

Summary

Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for the research, assessment, management, and monitoring of ecosystems and ecosystem components. These general purpose regions are critical for structuring and implementing ecosystem management strategies across federal agencies, state agencies, and nongovernment organizations that are responsible for different types of resources within the same geographical areas. The approach used to compile this map is based on the premise that ecological regions can be identified through the analysis of patterns of biotic and abiotic phenomena, including geology, physiography, [...]

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Attached Files

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Shapefile: EPA_Ecoregions_L4.zip
EPA_Ecoregions_L4.cpg 5 Bytes
EPA_Ecoregions_L4.dbf 775.31 KB
EPA_Ecoregions_L4.prj 167 Bytes
EPA_Ecoregions_L4.sbn 7.4 KB
EPA_Ecoregions_L4.sbx 892 Bytes
EPA_Ecoregions_L4.shp 10.69 MB
EPA_Ecoregions_L4.shp.xml
Original FGDC Metadata

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24.65 KB
EPA_Ecoregions_L4.shx 5.64 KB

Purpose

Ecoregion maps assist managers of aquatic and terrestrial resources to understand the regional patterns of the realistically attainable quality of these resources.

Map

Spatial Services

ScienceBase WMS

ScienceBase WFS

Communities

  • Southwest Energy Development and Drought

Tags

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Additional Information

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