Wetland and Aquatic Research Center
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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. Learn more about WARC science.
Science for Detection, Containment, and Control of Invasive Species
USGS scientists focus on the development of innovative prevention, prediction, early detection, containment, and control tools.
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WaterWords-Aragonite
Keep up to speed with the latest USGS deep-sea research cruise with this seafloor syntax.
WaterWords-Autonomous Underwater Vehicle
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WaterWords-Remotely Operated Vehicle
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Publications
Trends of litter decomposition and soil organic matter stocks across forested swamp environments of the southeastern US
A common idea in the discussion of soil carbon processes is that litter decomposition rates and soil carbon stocks are inversely related. To test this overall hypothesis, simultaneous studies were conducted of the relationship of environmental gradients to leaf and wood decomposition, buried cloth decomposition and percent soil organic matter in...
Middleton, Beth A. Using integrated population models for insights into monitoring programs: An application using pink-footed geese
Development of integrated population models (IPMs) assume the absence of systematic bias in monitoring programs, yet many potential sources of systematic bias in monitoring data exist (e.g., under-counts of abundance). By integrating multiple sources of data, we can assess whether various sources of monitoring data provide consistent inferences...
Johnson, Fred; Zimmerman, Guthrie S.; Jensen, Gitte H.; Clausen, Kevin K.; Frederiksen, Morten; Madsen, Jesper Petroleum hydrocarbons in semipermeable membrane devices deployed in the Northern Gulf of Mexico and Florida keys following the Deepwater Horizon incident
The Deepwater Horizon (DWH) oil spill from April to July of 2010 contaminated Gulf of Mexico waters through release of an estimated 4.1 × 106 barrels of oil. Beginning in June of 2010, semipermeable membrane devices (SPMDs) were deployed near areas with sensitive marine habitats (Alabama Alps and Western Shelf) potentially exposed...
Bargar, Timothy; Alvarez, David; Stout, Scott A.