Description: The National Ecological Framework is a GIS model of connectivity of natural landscapes in the lower 48 United States. It is designed to hel prevent fragmentation of natural connectivity.
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Description: These three polygon data files are polygons of the hubs, corridors, and auxiliary connections grids. They have attributes for the land uses, PEAs, and a measure of human disturbance in each polygon.
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Description: The NEF hubs are areas that have been designated as a Priority Ecological Area (PEA) from one of several sources and limited to 5000 acres or greater.
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Description: NEF corridors connect the NEF hubs through a least cost (ecologically best) path through the landscape and then expanded to a corridor with the cost surface.
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Description: This connectivity layer is an optimized buffer area that is contiguous with the NEF (hubs and corridors). It was developed with upland and hydrologic components.
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