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GCE-LTER Key Outcomes and Accomplishments

Since the GCE-LTER project began in 2000, our research has contributed significantly to understanding patterns and processes that shape estuarine and marsh environments. Key site-based findings of the GCE are:


  • What Drives DOM Composition in Estuaries?
  • Tools for Tidal Filtering of Remote Sensing Imagery
  • Comparisons with Chinese Wetlands Provide Insight into Salt Marsh Ecology
  • Patterns of marsh change at three LTER sites
  • The biogeomorphic and ecological effects of the marsh crab Sesarma reticulatum
  • The role of megafauna in salt marsh ecosystems
  • Allometric rules describe variation in salt marsh plant size and flowering
  • Elevation gradients drive microspatial differences in marsh temperature and spring green-up
  • Saltwater intrusion releases N from freshwater marshes


  • Groundwater discharge increases with marsh inundation
  • Sea level rise alters wetland function
  • The importance of lateral transport in southeastern estuaries
  • Biomass patterns differ in fresh as compared to salt marshes
  • River flow supports marsh production
  • The importance of foundation species in marshes
  • Ammonia oxidizers transform the nitrogen cycle
  • Disturbance patterns in GCE long-term monitoring plots
  • Ecological responses to shoreline armoring
  • Using high resolution mass spectrometry to track dissolved organic matter through estuaries
  • Filtering out tidal flooding improves remote sensing of marsh vegetation
  • 3-d model tracks residence times and shows connectivity in GCE estuaries
  • The importance of non-trophic interactions in salt marsh communities
  • Local gradients are more important than regional processes in structuring salt marsh plant communities
  • What causes wetland salinization?
  • Mobile predators structure communities
  • Large-scale climate drivers are linked to river discharge
  • Mapping marsh habitat with remote sensing
  • Examining latitudinal variation in salt marsh herbivory
  • Estuaries play an outsized role in the global carbon budget
  • Archaeology and the historical ecology of the Georgia Bight
  • Mapping geomorphology, plants, and animals with remote sensing
  • Tidal fresh forests are not keeping up with sea level rise
  • LTER

    This material is based upon work supported by the National Science Foundation under grants OCE-9982133, OCE-0620959, OCE-1237140 and OCE-1832178. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.