The Values of California's Wetlands

Wetlands are recognized as very important ecosystems with the following multiple values and functions:

• Biological Diversity. Wetlands provide important habitat for diverse communities of plants and animals, including over 50 percent of the federally listed threatened or endangered species.
  
  
• Waterfowl Habitat.Wetlands provide the principal habitat for migratory waterfowl. California provides critical wintering habitat for millions of waterfowl migrating along the Pacific Flyway, which extends from Canada to Mexico.
  
  
• Fisheries.Wetlands provide direct spawning and rearing habitats and food supply that supports both freshwater and marine fisheries.
  
  
• Flood Control. Wetlands detain flood flows, reducing the size and destructiveness of floods.
  
  
• Water Quality. Wetlands absorb and filter pollutants that could otherwise degrade ground water or the water quality of rivers, lakes, and estuaries.
  
  
• Ground Water Recharge. Some wetlands recharge aquifers that provide urban and agricultural water supplies.
  
  
• Recreation. Wetlands support a multi-million-dollar fishing, hunting, and outdoor recreation industry nationwide.

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Web author: deanne@ceres.ca.gov