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The land was ice-covered until 10,000 years ago, and species diversity is still lower than other European biogeographic regions, but wildlife is abundant, including large flocks of migratory birds and many marine organisms fed by nutrients carried by the Gulf Stream from the Caribbean. [2]
This page features a list of biogeographic provinces that were developed by Miklos Udvardy in 1975, [1] [2] later modified by other authors. [according to whom?] Biogeographic Province is a biotic subdivision of biogeographic realms subdivided into ecoregions, which are classified based on their biomes or habitat types and, on this page, correspond to the floristic kingdoms of botany.
Biogeographic realms correspond to the floristic kingdoms of botany or zoogeographic regions of zoology. From 1872, Alfred Russel Wallace developed a system of zoogeographic regions, extending the ornithologist Philip Sclater's system of six regions. [1] Biogeographic realms are characterized by the evolutionary history of the organisms they ...
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 . In 2017 the WWF team revised ecosystem names and boundaries in the Arabian Peninsula, drier African regions, and Southeastern United States.
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.
There is a multi-national association of regions, which acts as a co-ordinator of Atlantic European regions and its interests. This is the Atlantic Arc Commission. [12] Operative since 1989, it includes 26 regions from four member States - Great Britain, France, Spain and Portugal.
This system has a strong biogeographic basis, but was designed to aid in conservation activities for marine ecosystems. Its subdivisions include both the seafloor and shelf pelagic biotas of each marine region. [1] The digital ecoregions layer is available for download as an ArcGIS Shapefile. [2]
The Temperate Northern Atlantic is a marine realm, one of the great biogeographic divisions of the world's ocean basins. The tropical waters of the Atlantic Ocean, Gulf of Mexico, and Caribbean Sea are part of the Tropical Atlantic marine realm. To the north, the Temperate North Atlantic transitions to the Arctic realm. [1]