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GCE-IV proposal submitted!

The GCE-IV renewal proposal was submitted to NSF on 3/2/2018. The proposal lays out our research program for the next six years (2018-2024). The research we are proposing is focused on disturbance responses in intertidal marshes and how it relates to external drivers. Our specific goals are to:

1) Track environmental and human drivers that can cause perturbations in our focal ecosystems. We will accomplish this through continuing long-term measurements of climate, water chemistry, oceanic exchange, and human activities on the landscape.

2) Describe temporal and spatial variability in physical, chemical, geological and biological characteristics of the domain and how they respond to external drivers. We will accomplish this through our field monitoring program in combination with remote sensing and modeling.

3) Characterize the ecological responses of intertidal marshes to disturbance. We will accomplish this by ongoing monitoring and experimental work to evaluate system response to major perturbations in three key marsh habitats (changes in inundation and top-down control in Spartina-dominated salt marshes; increases in salinity in fresh marshes; changes in runoff in high marshes), by implementing standardized experimental disturbances along salinity and elevation gradients, and by tracking responses to natural disturbances.

4) Evaluate ecosystem properties at the landscape level (habitat distribution, net and gross primary production, C budgets) and assess the cumulative effects of disturbance on these properties. We will also develop relationships between drivers and response variables, which can be used to predict the effects of future changes. We will accomplish this through a combination of data synthesis, remote sensing and modeling.

The full text can be found here (access requires a GCE private web site login): https://gce-lter.marsci.uga.edu/private/app/resource_details.asp?id=845

And a data availability report describing the data sets formally archived by our program since GCE-I is available here: https://gce-lter.marsci.uga.edu/private/app/resource_details.asp?id=846


(Contact Merryl Alber for additional information)

submitted Mar 06, 2018


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.