Wetlands Status and Trends

Data from status and trends provide important long-term trend information about specific changes and places and the overall status of wetlands in the United States. The historical data base that the Service has developed through Status and Trends, provides photographic evidence of land use and wetlands extent dating back to the 1950s. This provides an accurate record to assist in future restoration efforts.

National Reports Highlights

• New NOAA/USFWS joint report on Coastal Wetland Trends 1998-2004 (8.7 MB PDF)
• Status and Trends of Wetlands in the Conterminous United States 1998 to 2004 (Dahl, 2006) (12MB PDF) (Printer version, 33MB PDF)
• Status and Trends of Wetlands in the Conterminous United States 1986 to 1997 (Dahl, T.E. 2000) (8.5MB PDF)

State and Regional Reports Highlights

• Status of Alaska Wetlands (Jonathan V. Hall et.al. 1994) (5.7MB PDF)
• Florida's Wetlands An Update on Status and Trends 1985 to 1996 (Dahl, T.E. 2005) (16.7MB PDF)
• South Carolina's Wetlands — Status and trends 1982-1989 (Dahl, T.E. 1999) (2.0MB PDF)
• Texas Coastal Wetlands: Status and Trends, mid-1950's to early 1990's (Moulton, D.W. et.al. 1997) (6.4MB PDF)
• Status and Recent Trends of Wetlands in Five Mid-Atlantic States (Ralph W. Tiner, Jr. et.al. 1986) (3.4MB PDF)
• Mid-Atlantic Wetlands A Disappearing Natural Treasure (Ralph W. Tiner, Jr. 1987) (5.6MB PDF)
• Delaware's Wetlands: Status and Recent Trends (Ralph W. Tiner, Jr. 2001) (5.6MB PDF)

Technical Information

• Status and Trends Procedures (2.3MB PDF)
• Status and Trends Step Down Strategy ( 3MB PDF)
• Peer Review Plan/Process (57KB PDF)
• NWI Strategy (2.4MB PDF)
• History of Wetlands in the Conterminous United States (Dahl, T.E. et.al.) (2MB PDF)
• National Water Summary on Wetland Resources (U.S. Geological Survey Water-Supply Paper 2425)

Classification Information

• Classification of Wetlands and Deepwater Habitats of the United States (Lewis M. Cowardin et.al. 1979) (17.5MB PDF)
• A System for Mapping Riparian Areas in the Western United States (David Dall et.al. 1997) (16.2 MB PDF)
• A Land Use and Land Cover Classification System for Use with Remote Sensor Data (James R. Anderson et.al. 1976) (5.1MB PDF)
• Description of the Ecoregions of the United States (Robert G. Bailey 1980) (8.9MB PDF)

Other Information

• Working with EPA: National Wetland Condition Assessment fact sheet

Search all Status and Trends reports

• Document Search Engine