Four major ecoregions converge in Indiana - the Great Lakes Ecoregion, Central Tallgrass Prairie Ecoregion, North Central Tillplain Ecoregion, and Interior Low Plateau Ecoregion. Each ecoregion is defined by its climate, vegetation, and geology and is home to distinct plant and animal species. The document suggests that Indiana should increase public land and permanent funding for land acquisition to better protect its biodiversity across these ecoregions for economic and ecological reasons.