"Ecosystems in Illinois are deteriorating, their natural functions disrupted by fragmentation and stress." So concluded The Changing Illinois Environment: Critical Trends, a state-of-the-environment report published in 1994 by the Illinois Department of Energy and Natural Resources (now the Illinois Department of Natural Resources).  This report recommended that the state begin collecting statewide data on both the extent and condition of its ecosystems in order to determine the most effective and economical natural resources policy.   General program reports are listed below in chronological order.  

See other tabs for the Area Assessments of Illinois watersheds/regions and CTAP Science & Ecological Policy Papers.