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The following is a list of marine ecoregions, as defined by the WWF and The Nature Conservancy. The WWF/Nature Conservancy scheme groups the individual ecoregions into 12 marine realms, which represent the broad latitudinal divisions of polar, temperate, and tropical seas, with subdivisions based on ocean basins.
Ecoregions of North America, featuring the 50 United States, the District of Columbia and the five inhabited territories. The following is a list of ecoregions in the United States as identified by the World Wide Fund for Nature (WWF). The United States is a megadiverse country with a high level of endemism across a wide variety of ecosystems.
Ecoregions may be identified by similarities in geology, physiography, vegetation, climate, soils, land use, wildlife distributions, and hydrology. The classification system has four levels, but only Levels I and III are on this list. Level I divides North America into 15 broad ecoregions; of these, 12 lie partly or wholly within the United States.
Global 200 ecoregions (WWF), 238 single or combined ecoregions identified by the World Wildlife Fund (WWF) as priorities for conservation. List of terrestrial ecoregions (WWF) 867 terrestrial ecoregions. List of marine ecoregions (WWF), 232 marine ecoregions of the coastal and continental shelf areas. List of freshwater ecoregions (WWF), 426 ...
Other classifications of marine ecoregions or equivalent areas have been widely developed at national and regional levels, as well as a small number of global schemes. Each of these systems, along with numerous regional biogeographic classifications, was used to inform the MEOW system.
The World Wildlife Fund (WWF) identifies terrestrial, marine, freshwater, and ecoregions: . Global 200; List of terrestrial ecoregions (WWF) 867 terrestrial ecoregions. List of marine ecoregions (WWF), 232 marine ecoregions of the coastal and continental shelf areas.
This page was last edited on 20 September 2020, at 18:08 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
A map of the Amazon rainforest ecoregions. The yellow line encloses the ecoregions per the World Wide Fund for Nature. A map of the bioregions of Canada and the US. 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.