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Hurricanes periodically deliver sediment to coastal wetlands, such as those in the Mississippi River Delta Complex (MRDC), slowing elevation loss and improving resilience to sea-level rise. However, the amount of hurricane sediment deposited and retained in a wetland may vary depending on the dominant vegetation. In the subtropical climate of the MRDC, the black mangrove (Avicennia germinans (L.) L.) has been expanding and replacing salt marsh (Spartina alterniflora Loisel). Because these vegetation types differ in aboveground structure, their influence on sedimentation may also differ. We conducted a survey for 160 km along the outer coast of Louisiana, USA from Oyster Bayou to the Mississippi River to determine...
Categories: Data;
Tags: Ecology,
Gulf of Mexico,
Louisiana,
USGS Science Data Catalog (SDC),
aquatic vegetation,
Willow Habitat current, near-term and long-term future status good and moderate habitat, quality by vegetation community, change length growing season from 2010s to 2060s in Good or Moderate Quality Willow Habitat. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content...
This dataset includes barrier island land cover types collected from mid-November 2015 to mid-December 2015 along randomly placed transects at seven sites throughout the east end of Dauphin Island. Specifically, this data collection included characterizing land cover types and measuring horizontal position and elevation. We characterized plant community composition and structure for a subset of these points (see Vegetation Survey Data Table). This work was conducted through a joint effort by the State of Alabama, the U.S. Geological Survey, and the U.S. Army Corps of Engineers to evaluate the feasibility of various restoration alternatives and how specific alternatives might increase the resiliency and sustainability...
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