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  2. List of ecoregions in Illinois - Wikipedia

    en.wikipedia.org/wiki/List_of_ecoregions_in_Illinois

    Level IV ecoregions (denoted by numbers and letters) are a further subdivision of Level III ecoregions (denoted by numbers alone). [ 2 ] [ 3 ] In general, Illinois transitions from the forests, to savannah , to tall grass prairie , and is now largely used for agriculture or urbanized, although in its far south are the forested highlands of the ...

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

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

    Three level I areas were not subdivided for level 2. [2] Level III subdivides the continent into 182 smaller ecoregions; of these, 104 lie partly or wholly with the United States. [1] [3] Level IV is a further subdivision of Level III ecoregions. Level IV mapping is still underway but is complete across most of the United States.

  4. 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.

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

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

    "Level I" divides North America into 15 broad ecoregions. "Level II" subdivides the continent into 52 smaller ecoregions. "Level III" subdivides those regions again into 182 ecoregions. [1] [2] "Level IV" is a further subdivision of Level III ecoregions. Level IV mapping is still underway but is complete across most of the United States.

  6. Going green: How Illinois cities rank when it comes to ... - AOL

    www.aol.com/going-green-illinois-cities-rank...

    One Illinois ranked in the top 5, according to the report, which used five sustainability categories to measure a city's sustainability. Going green: How Illinois cities rank when it comes to ...

  7. Category:Ecoregions of Illinois - Wikipedia

    en.wikipedia.org/.../Category:Ecoregions_of_Illinois

    Pages in category "Ecoregions of Illinois" The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes. *

  8. 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.

  9. Lists of ecoregions in the United States - Wikipedia

    en.wikipedia.org/wiki/Lists_of_ecoregions_in_the...

    Lists of ecoregions in the United States may refer to: List of ecoregions in the United States (EPA) , United States Environmental Protection Agency system List of ecoregions in the United States (WWF) , World Wildlife Fund system