Wetland and Aquatic Research Center
Home
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.
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.
Learn moreWARC Quick Links
Looking for something? Let us help.
Contact One of WARC's Scientists
Follow WARC Wetland Science on Twitter
Follow WARC Aquatic Science on Twitter
WARC ScienceNews
Extreme Rainfall and Flooding Contributes to Sudden Vegetation Dieback in Texas Salt Marsh
Sudden vegetation dieback events in salt marshes have historically been linked to severe drought, but a new U.S. Geological Survey study reports the first documented example of such an event being triggered by extreme rainfall and flooding.
Genetics Helps Unravel Invasive Lionfish Introduction Scenarios
A new USGS study finds a lack of evidence to support the widely accepted introduction scenario in which the invasive lionfish originated solely from Florida and identifies alternative introduction pathways.
Southeast Region (SER) Science Workshop: Identifying Science to Meet Administration Priorities and the Needs of Our Stakeholders
The fourth annual SER Science Workshop, held virtually July 13-16, 2021, addressed four administration priorities – underserved communities, tribal engagement, conserving 30% of our lands and waters by 2030, and tackling the climate crisis.
Publications
A protocol for modelling generalised biological responses using latent variables in structural equation models
In this paper we consider the problem of how to quantitatively characterize the degree to which a study object exhibits a generalized response. By generalized response, we mean a multivariate response where numerous individual properties change in concerted fashion due to some internal integration. In latent variable structural equation modeling (...
Akomolafe, Gbenga; Grace, James; Steiner, Magdalena Instrumental variable methods in structural equation models
Instrumental variable regression (RegIV) provides a means for detecting and correcting parameter bias in causal models. Widely used in economics, recently several papers have highlighted its potential utility for ecological applications. Little attention has thus far been paid to the fact that IV methods can also be implemented within structural...
Morrissey, Michael; Grace, James Extreme precipitation and flooding contribute to sudden vegetation dieback in a coastal salt marsh
Climate extremes are becoming more frequent with global climate change and have the potential to cause major ecological regime shifts. Along the northern Gulf of Mexico, a coastal wetland in Texas suffered sudden vegetation dieback following an extreme precipitation and flooding event associated with Hurricane Harvey in 2017. Historical salt marsh...
Stagg, Camille; Osland, Michael; Moon, Jena A.; Feher, Laura; Laurenzano, Claudia; Lane, Tiffany C.; Jones, William; Hartley, Stephen