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A bioregion is simply an indenfidable geographic area whose life systems are self-contained, self- sustaining and self renewing. A bioregion you might say, is a basic unit within the natural system of earth. Another way to define a bioregion is in terms of watersheds. Bioregions must develop human populations that accord with their natural context.
An ecoregion (ecological region) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas of land or water, and contain characteristic, geographically distinct assemblages of natural communities and species .
Biogeographic realms are characterized by the evolutionary history of the organisms they contain. They are distinct from biomes, also known as major habitat types, which are divisions of the Earth's surface based on life form, or the adaptation of animals, fungi, micro-organisms and plants to climatic, soil, and other conditions
This is a list of terrestrial ecoregions as compiled by the World Wildlife Fund (WWF). The WWF identifies terrestrial, freshwater, and marine ecoregions. The terrestrial scheme divides the Earth's land surface into 8 biogeographic realms, containing 867 smaller ecoregions. Each ecoregion is classified into one of 14 major habitat types, or biomes.
One scheme of potential North American bioregions. The band of colour represent transitional biotones. Bioregionalism is a philosophy that suggests that political, cultural, and economic systems are more sustainable and just if they are organized around naturally defined areas called bioregions (similar to ecoregions).
Ecoregions are defined by the World Wide Fund for Nature as "relatively large units of land or water containing a distinct assemblage of natural communities and species, with boundaries that approximate the original extent of natural communities prior to major land-use change".
Download as PDF; Printable version; ... Nearctic ecoregions (5 C, 113 P) Neotropical ecoregions ... List of Neotropical ecoregions by bioregion; C.
Bioregional mapping is a participatory approach to cartography that focuses on mapping the natural, ecological, and cultural features of a bioregion—an area defined by its natural boundaries, such as watersheds, ecosystems, and cultures that arise form a place, rather than human borders. [1]