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Palearctic Region: Eurasia above the tropics, with the northern corner of Africa; 4. Nearctic Region: North America, excepting the tropical part of Mexico; Realm Neogea 5. Neotropical Region: South and Central America with the tropical part of Mexico; Realm Notogea 6. Australian Region: Australia, with New Guinea, etc. Second scheme: Climate ...
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.
South of the taiga are a belt of temperate broadleaf and mixed forests and temperate coniferous forests. This vast Euro-Siberian region is characterized by many shared plant and animal species, and has many affinities with the temperate and boreal regions of the Nearctic realm of North America.
It includes both the Nearctic zoogeographical region (which covers most of North America), and Alfred Wallace's Palearctic zoogeographical region (which covers North Africa, and all of Eurasia except for Southeast Asia, the Indian subcontinent, the southern Arabian Peninsula). These regions are further subdivided into a variety of ecoregions.
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 Western North America bioregion includes the temperate coniferous forests of the coastal and mountain regions of southern Alaska, western Canada, and the western United States from the Pacific Coast and Northern California to the Rocky Mountains (known as the Cascadian bioregion), as well as the cold-winter intermountain deserts and xeric ...
The Caribbean Islands were populated primarily by species from South America, due to the prevailing direction of oceanic currents, rather than to a competition between North and South American forms. [49] [50] Except in the case of Jamaica, oryzomyine rodents of North American origin were able to enter the region only after invading South America.
South American species like the ancestors of the Virginia opossum (Didelphis virginiana) and the armadillo moved into North America, and North Americans like the ancestors of South America's camelids, including the llama (Lama glama), moved south. The long-term effect of the exchange was the extinction of many South American species, mostly by ...