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Wetland and Aquatic Research Center

WARC conducts relevant and objective research, develops new approaches and technologies, and disseminates scientific information needed to understand, manage, conserve, and restore wetlands and other aquatic and coastal ecosystems and their associated plant and animal communities throughout the nation and the world. 

News

Event: Explore USGS Careers in the Southeast 2024

Event: Explore USGS Careers in the Southeast 2024

USGS scientists find new relationship between elevation change and wetland loss in Mississippi River Delta

USGS scientists find new relationship between elevation change and wetland loss in Mississippi River Delta

Traversing the Sea for Science: How USGS Uses the Federal Fleet to Study Natural Hazards, Resources, and More

Traversing the Sea for Science: How USGS Uses the Federal Fleet to Study Natural Hazards, Resources, and More

Publications

Amphibian monitoring in hardwood forests: Optimizing methods for contaminant‐based compensatory restorations

Amphibians such as frogs, toads, and salamanders provide important services in aquatic and terrestrial ecosystems and have been proposed as useful indicators of progress and success for ecological restoration projects. Limited guidance is available, however, on the costs and benefits of different amphibian monitoring techniques that might be applied to sites restored in compensation for contaminan
Authors
Bethany K. Kunz, Hardin Waddle, Nicholas S. Green

The Interagency Coordinating Committee on the validation of alternative methods (ICCVAM)

Many ICCVAM member agencies are developing new technologies and resources to replace the use of animals for chemical safety testing. These include new platforms such as microphysiological systems (MPS), data resources to support the development of predictive models and quantitative structure–activity relationships (QSARs), and web tools to facilitate data access and visualization.
Authors
Barnett A. Rattner, Timothy Bargar, Paula F. P. Henry

Effects of initial vegetation heterogeneity on competition of submersed and floating macrophytes

Non-spatial models of competition between floating aquatic vegetation (FAV) and submersed aquatic vegetation (SAV) predict a stable state of pure SAV at low total available limiting nutrient level, N, a stable state of only FAV for high N, and alternative stable states for intermediate N, as described by an S-shaped bifurcation curve. Spatial models that include physical heterogeneity of the water
Authors
Linhao Xu, Don DeAngelis

Science

Invasive Burmese Pythons in Southern Florida

Invasive species represent a significant threat to global biodiversity and a substantial economic burden to surrounding communities. In the last 40 years, the Burmese python ( Python bivittatus ) has invaded southern Florida, including Everglades National Park, Big Cypress National Preserve, and other protected lands.
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Invasive Burmese Pythons in Southern Florida

Invasive species represent a significant threat to global biodiversity and a substantial economic burden to surrounding communities. In the last 40 years, the Burmese python ( Python bivittatus ) has invaded southern Florida, including Everglades National Park, Big Cypress National Preserve, and other protected lands.
Learn More

Decision Support for Managers Restoring Texas Coastal Marshes with Beneficial Use of Dredged Material

USGS researchers will define the range of elevation targets supporting optimal plant performance and oil strength by identifying the lower and upper thresholds of marsh conversion, and characterize ecosystem development of restored marshes over time to identify the lifetime and sustainability of restored marsh during sea-level rise. This work addresses priority science needs to improve restoration...
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Decision Support for Managers Restoring Texas Coastal Marshes with Beneficial Use of Dredged Material

USGS researchers will define the range of elevation targets supporting optimal plant performance and oil strength by identifying the lower and upper thresholds of marsh conversion, and characterize ecosystem development of restored marshes over time to identify the lifetime and sustainability of restored marsh during sea-level rise. This work addresses priority science needs to improve restoration...
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A Case Study Assessing the Cumulative Effects of Deepwater Horizon Restoration Projects on Barrier Island/Barrier Shoreline Ecosystem Resilience in the North-central Gulf of Mexico

USGS and partners will assess the potential cumulative effects of restoration projects on the resiliency of barrier islands and barrier shorelines in the north-central Gulf of Mexico.
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A Case Study Assessing the Cumulative Effects of Deepwater Horizon Restoration Projects on Barrier Island/Barrier Shoreline Ecosystem Resilience in the North-central Gulf of Mexico

USGS and partners will assess the potential cumulative effects of restoration projects on the resiliency of barrier islands and barrier shorelines in the north-central Gulf of Mexico.
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