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Soil surface elevation dynamics in a mangrove-to-marsh ecotone characterized by vegetation shifts


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Howard, R.J., From, A.S., and Allain, L.K., 2019, Soil surface elevation dynamics in a mangrove-to-marsh ecotone characterized by vegetation shifts: U.S. Geological Survey data release,


This release consists of soil surface elevation, also called vertical land motion of the wetland (VLMw), and vertical accretion data collected over time across an environmental gradient at Ten Thousand Islands National Wildlife Refuge near Naples, Florida, USA. VLMw was measured using rod surface elevation tables, while accretion was measured using feldspar marker horizons (i.e., RSET-MH technique). Stations were located in the following wetland types: brackish marsh, salt marsh, transition marsh, and mangrove forest. Vegetation cover in the vicinity of the RSET-MH stations was described. The study spanned six years, from 2011 to 2017.

Child Items (3)


Point of Contact :
Rebecca J Howard
Originator :
Rebecca J Howard, Andrew From, Larry K Allain
Metadata Contact :
Rebecca J Howard
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Wetland and Aquatic Research Center
USGS Mission Area :

Attached Files

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TTINWR_Measurement_Day.csv 351 Bytes
TTINWR_Vertical_Accretion.csv 6.05 KB
TTINWR_Elevation.csv 26.44 KB
TTINWR_Rod_Depth.csv 389 Bytes
TTINWR__Master_Legend.xlsx 15.31 KB
TTINWR_RSET_Vegetation.csv 4.21 KB


Data were collected within a mangrove-marsh ecotone to determine differences in VLMw and accretion across the coastal gradient from brackish marsh to mangrove forest. The questions addressed were: (1) do patterns of surface elevation change and accretion rate vary across the environmental gradient?, and (2) if patterns exists, are they associated with vegetation change or habitat conversion to open water within the mangrove-marsh ecotone?


Spatial Services

ScienceBase WMS


  • USGS Data Release Products
  • USGS Wetland and Aquatic Research Center



Additional Information


Type Scheme Key
DOI doi:10.5066/P9XZYJ2X

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