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Fact Sheet 2011–3015

Inventory and Protection of Salt Marshes from Risks of Sea-Level Rise at Acadia National Park, Maine

By Robert W. Dudley and Martha G. Nielsen


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Recent U.S. Geological Survey (USGS) climate studies in the northeastern United States have shown substantial evidence of climate-related changes during the last 100 years, including earlier snowmelt runoff, decreasing occurrence of river ice, and decreasing winter snowpack. These studies related to climate change are being expanded to include investigation of coastal wetlands that might be at risk from sealevel rise. Coastal wetlands, particularly salt marshes, are important ecosystems that provide wildlife nursery and breeding habitat, migratory bird habitat, water quality enhancement, and shoreline erosion control. The USGS is investigating salt marshes
in Acadia National Park with the goal of determining which salt marshes may be threatened by sea-level rise and which salt marshes may be able to adapt to sea-level rise by migrating into adjacent low-lying lands.

First posted March 2, 2011

For additional information contact:
U.S. Geological Survey
Maine Water Science Center
196 Whitten Road
Augusta, Maine 04330

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Suggested citation:

Dudley, R.W., and Nielsen, M.G., 2011, Inventory and protection of salt marshes from risks of sea-level rise at Acadia National Park, Maine: U.S. Geological Survey Fact Sheet 2011–3015, 4 p., available at



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