List of ecoregions in Indiana Information

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The list of ecoregions in Indiana are listings of terrestrial ecoregions (see also, ecosystem) in the United States' State of Indiana, as defined separately by the United States Environmental Protection Agency (USEPA), and the World Wildlife Fund.


The USEPA ecoregion classification system has four levels, but only Levels I, III, and IV are shown on this list. Level I divides North America into 15 broad ecoregions (or biomes). Indiana is within the Eastern Temperate Forest environment, Level I region. Level IV ecoregions (denoted by numbers and letters) are a further subdivision of Level III ecoregions (denoted by numbers alone). [1] [2] [3]

World Wildlife Fund

Ecozone Biome Ecoregion State Location
Nearctic Temperate broadleaf and mixed forests Central U.S. hardwood forests Southern Indiana
Nearctic Temperate broadleaf and mixed forests Southern Great Lakes forests North, Central, and Eastern Indiana
Nearctic Temperate grasslands, savannas, and shrublands Central forest-grasslands transition Western Indiana


  1. ^ "Ecological Regions of North America: Toward a Common Perspective". Commission for Environmental Cooperation. 1997. Retrieved 2013-04-07.
  2. ^ Plant Maps Interactive - Indiana Ecoregions (based on EPA data), retrieved 2013-04-07
  3. ^ Ecoregions of Indiana and Ohio USEPA
  • See: Ricketts, Taylor H; Eric Dinerstein; David M. Olson; Colby J. Loucks; et al. (1999). Terrestrial Ecoregions of North America: a Conservation Assessment. Island Press; Washington, DC

See also