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.

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Science for Detection, Containment, and Control of Invasive Species

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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News

Date published: October 30, 2019

WaterWords-Aragonite

Keep up to speed with the latest USGS deep-sea research cruise with this seafloor syntax.

Date published: October 16, 2019

WaterWords-Autonomous Underwater Vehicle

Keep up to speed with the latest USGS deep-sea research cruise with this seafloor syntax.

Date published: October 16, 2019

WaterWords-Remotely Operated Vehicle

Keep up to speed with the latest USGS deep-sea research cruise with this seafloor syntax.

Publications

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Year Published: 2020

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

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Year Published: 2019

Asian swamp eels in North America linked to the live-food trade and prayer-release rituals

We provide a history of swamp eel (family Synbranchidae) introductions around the globe and report the first confirmed nonindigenous records of Amphipnous cuchia in the wild. The species, native to Asia, is documented from five sites in the USA: the Passaic River, New Jersey (2007), Lake Needwood, Maryland (2014), a stream in Pennsylvania (2015),...

Nico, Leo; Kilian, Jay V.; Ropicki, Andrew J.; Harper, Matthew

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Year Published: 2019

Using δ13C and δ18O to analyze loblolly pine (Pinus taeda L.) response to experimental drought and fertilization

Drought frequency and intensity are projected to increase throughout the southeastern USA, the natural range of loblolly pine (Pinus taeda L.), and are expected to have major ecological and economic implications. We analyzed the carbon and oxygen isotopic compositions in tree ring cellulose of loblolly pine in a factorial drought (~30% throughfall...

Lin, Wen; Domec, Jean-Christophe; Ward, Eric; Marshall, John D.; King, John S; Laviner, Marshall A.; Fox, Thomas R; West, Jason B.; Sun, Ge; McNulty, Steve G; Noormets, Asko