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  2. List of ecoregions in the United States (EPA) - Wikipedia

    en.wikipedia.org/wiki/List_of_ecoregions_in_the...

    The Commission's 1997 report, Ecological Regions of North America, provides a framework that may be used by government agencies, non-governmental organizations, and academic researchers as a basis for risk analysis, resource management, and environmental study of the continent's ecosystems. [1] In the United States, the EPA and the United ...

  3. List of ecoregions in the United States (WWF) - Wikipedia

    en.wikipedia.org/wiki/List_of_ecoregions_in_the...

    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.

  4. 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.

  5. Lists of ecoregions - Wikipedia

    en.wikipedia.org/wiki/Lists_of_ecoregions

    Ecoregions of North America, featuring the 50 United States, the District of Columbia and the five inhabited territories Wikipedia has articles relating to several ecoregion classification systems , defined by the conservation group World Wildlife Fund (WWF), the Commission for Environmental Cooperation (CEC), and like agencies around the world.

  6. Megadiverse countries - Wikipedia

    en.wikipedia.org/wiki/Megadiverse_countries

    Conservation International identified 17 megadiverse countries in 1998, [1] [2] all of which are located at least partially in tropical or subtropical regions. Megadiversity means exhibiting great biodiversity. The main criterion for megadiverse countries is endemism at the level of species, genera and families. A megadiverse country must have ...

  7. List of national parks of the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_national_parks_of...

    The Everglades are the largest tropical wilderness in the United States. This mangrove and tropical rainforest ecosystem and marine estuary is home to 36 protected species, including the Florida panther, American crocodile, and West Indian manatee. Some areas have been drained and developed; restoration projects aim to restore the ecology. [43]

  8. List of countries by ecological footprint - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    This is a list of countries by ecological footprint. The table is based on data spanning from 1961 to 2013 from the Global Footprint Network's National Footprint Accounts published in 2016. Numbers are given in global hectares per capita. The world-average ecological footprint in 2016 was 2.75 global hectares per person (22.6 billion in total).

  9. List of ecoregions in North America (CEC) - Wikipedia

    en.wikipedia.org/wiki/List_of_ecoregions_in...

    Between 1931 and 2000, there have been measurable increases in seasonal rainfall during the summertime monsoon in the southern United States and northern Mexico. Because of this increase in rainfall, changes in the vegetative cover have caused native species to disappear and invasive species populations to rise.