Definitions for "Ecoregions"
Relatively large geographic areas of land and water delineated by climate, vegetation, geology and other ecological and environmental patterns.
subdivisions of the Ecozones characterized by climatic zones or regional landforms
Ecoregions (or ecozones) are relatively large units of land or water that contain distinct assemblages of natural communities sharing a majority of species, climate, soils, environmental conditions, and general topography. For example, ecoregions at the continental scale would be Australia or Latin America, whereas on a country scale, the boreal forest and Atlantic Maritimes are different ecoregions of Canada.