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  2. Biogeographic realm - Wikipedia

    en.wikipedia.org/wiki/Biogeographic_realm

    The realms delineate large areas of Earth's surface within which organisms have evolved in relative isolation over long periods of time, separated by geographic features, such as oceans, broad deserts, or high mountain ranges, that constitute natural barriers to migration. As such, biogeographic realm designations are used to indicate general ...

  3. List of biogeographic provinces - Wikipedia

    en.wikipedia.org/wiki/List_of_biogeographic...

    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.

  4. United Nations geoscheme - Wikipedia

    en.wikipedia.org/wiki/United_Nations_geoscheme

    The United Nations geoscheme is a system which divides 248 countries and territories in the world into six continental regions, 22 geographical subregions, and two intermediary regions. [1] It was devised by the United Nations Statistics Division (UNSD) based on the M49 coding classification . [ 2 ]

  5. List of political and geographic subdivisions by total area ...

    en.wikipedia.org/wiki/List_of_political_and...

    The world known to its population before contact with the "New World" (the Americas). Afro-Eurasia: 84,211,532: Largest contiguous landmass. Holarctic: 77,000,000: Biogeographic realm that encompasses the majority of habitats found throughout the northern continents of the world. Atlantic Ocean excluding adjacent seas: 76,762,000: Second ...

  6. List of political and geographic subdivisions by total area ...

    en.wikipedia.org/wiki/List_of_political_and...

    Old World: 84,980,532: The world known to its population before contact with the "New World" (the Americas). Afro-Eurasia: 84,211,532: Largest contiguous landmass. Holarctic: 77,000,000: Biogeographic realm that encompasses the majority of habitats found throughout the northern continents of the world. Atlantic Ocean excluding adjacent seas ...

  7. List of terrestrial ecoregions (WWF) - Wikipedia

    en.wikipedia.org/wiki/List_of_terrestrial_eco...

    Terrestrial ecoregions of the world. 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.

  8. Zoogeography - Wikipedia

    en.wikipedia.org/wiki/Zoogeography

    Zoogeography is the branch of the science of biogeography that is concerned with geographic distribution (present and past) of animal species. [ 1 ] As a multifaceted field of study, zoogeography incorporates methods of molecular biology, genetics, morphology, phylogenetics , and Geographic Information Systems (GIS) to delineate evolutionary ...

  9. List of physiographic regions - Wikipedia

    en.wikipedia.org/wiki/List_of_physiographic_regions

    The landforms of Earth are generally divided into physiographic regions, consisting of physiographic provinces, which in turn consist of physiographic sections, [1] [2] [3] though some others use different terminology, such as realms, regions and subregions. [4] Some areas have further categorized their respective areas into more detailed ...