Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10351
Landfill leachate contributes per-/poly-fluoroalkyl substances (PFAS) and pharmaceuticals to municipal wastewater Landfill leachate contributes per-/poly-fluoroalkyl substances (PFAS) and pharmaceuticals to municipal wastewater
Widespread disposal of landfill leachate to municipal sewer infrastructure in the United States calls for an improved understanding of the relative organic-chemical contributions to the wastewater treatment plant (WWTP) waste stream and associated surface-water discharge to receptors in the environment. Landfill leachate, WWTP influent, and WWTP effluent samples were collected from three...
Authors
Jason R. Masoner, Dana W. Kolpin, Isabelle M. Cozzarelli, Kelly L. Smalling, Stephanie Bolyard, Jennifer Field, Edward T. Furlong, James L. Gray, Duncan Lozinski, Debra Reinhart, Alix Rodowa, Paul M. Bradley
Structural equation modeling Structural equation modeling
This chapter introduces background and historical information on how structural equation modeling (SEM) came to be developed. Then, the main differences between SEM and earlier multivariate methods are explained. The chapter describes three main applications of SEM: path analysis, factor analysis, and hybrid models. Some computer programs are recommended for these applications. The step...
Authors
Matt Miller, Ivana Tasic, Torrey Lyons, Reid Ewing, James B. Grace
Louisiana Adaptive Management Status and Improvement Report: Vision and Recommendations Louisiana Adaptive Management Status and Improvement Report: Vision and Recommendations
As part of the process to increase implementation of adaptive management for ecosystem-based coastal restoration within Louisiana, we aim for this report to be broadly applicable across planning processes as well as funding and implementing entities. It compiles technical knowledge and guidance summarized as key findings through the text which lead to eight priority recommendations to...
Authors
Bill Boshart, Morgan Crutcher, Angelina Freeman, Edward Haywood, Syed M. Khalil, Summer Langlois, Darin L. Lee, David Lindquist, Tommy E. McGinnis, James Pahl, Carol Parsons-Richards, Erin Plitsch, Rick Raynie, Robert Routon, Leigh Anne Sharp, John Troutman, Chuck Villarrubia, Todd Folse, Alyson Graugnard, Anne Hawes, Russ Joffrion, Wes Leblanc, Brian Lezina, Jim Pahl, Jody White, Craig Conzelmann, Ann Hijuelos, Sarai Piazza, Kathryn A. Spear, Gregory D. Steyer, Nanciann Regalado, John M. Tirpak, Courtney Schupp, Melissa Carle, Jaclyn Daly, Nicolas Eckhardt, Christy Fellas, Erin M. Fougeres, Stephen Heverly, Stacey Horstman, Jason Kroll, Mel Landry, Barbara A. Schroeder, Eric Weissberger, Sara Wissman, Treda Grayson, Patricia Taylor, Danny Wiegand, Mark Defley, Paulina Kolic, Harris Bienn, Tim J. B. Carruthers, Alyssa Dausman, Alaina Grace, Scott Hemmerling, Andrea Jerabek, Eric White, Ryan Clark, Coleen McHugh, Leland C Moss, Cyndhia Ramatchandirane, Amy Wold
Antibiotic resistance in marine microbial communities proximal to a Florida sewage outfall system Antibiotic resistance in marine microbial communities proximal to a Florida sewage outfall system
Water samples were collected at several wastewater treatment plants in southeast Florida, and water and sediment samples were collected along and around one outfall pipe, as well as along several transects extending both north and south of the respective outfall outlet. Two sets of samples were collected to address potential seasonal differences, including 38 in the wet season (June 2018...
Authors
Dale W. Griffin, Kenneth Banks, Kurtis Gregg, Sarah Shedler, Brian Walker
Uptake and toxicity of clothianidin to monarch butterflies from milkweed consumption Uptake and toxicity of clothianidin to monarch butterflies from milkweed consumption
Recent concern for the adverse effects from neonicotinoid insecticides has centered on risk for insect pollinators in general and bees specifically. However, natural resource managers are also concerned about the risk of neonicotinoids to conservation efforts for the monarch butterfly (Danaus plexippus) and need additional data to help estimate risk for wild monarch butterflies exposed...
Authors
Timothy A. Bargar, Michelle L. Hladik, Jaret C. Daniels
Potential impacts of future urbanization and sea level rise on Florida’s natural resources Potential impacts of future urbanization and sea level rise on Florida’s natural resources
As urban development continues to encroach into natural systems, these ecosystems experience increasing degradation to their form and function. Losses in biodiversity and ecosystem function are further compounded by changing climatic conditions. The State of Florida is known for its biodiversity but has experienced declines in species populations and habitats because of urbanization and...
Authors
Stephanie Romanach, Allison Benscoter, Saira Haider
Predicting barrier island habitats and oyster and seagrass habitat suitability for various restoration measures and future conditions for Dauphin Island, Alabama Predicting barrier island habitats and oyster and seagrass habitat suitability for various restoration measures and future conditions for Dauphin Island, Alabama
Barrier islands, such as Dauphin Island, Alabama, provide numerous invaluable ecosystem services including storm damage reduction and erosion control to the mainland, habitat for fish and wildlife, carbon sequestration in marshes, water catchment and purification, recreation, and tourism. These islands are dynamic environments that are gradually shaped by currents, waves, and tides under...
Fundamental hydraulics of cross sections in natural rivers: Preliminary analysis of a large data set of acoustic doppler flow measurements Fundamental hydraulics of cross sections in natural rivers: Preliminary analysis of a large data set of acoustic doppler flow measurements
We have assembled a comprehensive and publicly accessible U.S. Geological Survey (USGS) streamflow measurement data set, called HYDRoSWOT, from a USGS National Water Information System archive of acoustic Doppler current profiler river discharge measurements collected from a wide range of rivers throughout the United States. The data set provides a wealth of information on the range of...
Authors
David M. Bjerklie, John W, Fulton, S. Lawrence Dingman, Michael G. Canova, J. Toby Minear, Tommaso Moramarco
Effect of stressors on the carrying capacity of spatially distributed metapopulations Effect of stressors on the carrying capacity of spatially distributed metapopulations
Stressors such as antibiotics, herbicides, and pollutants are becoming increasingly common in the environment. The effects of stressors on populations are typically studied in homogeneous, nonspatial settings. However, most populations in nature are spatially distributed over environmentally heterogeneous landscapes with spatially restricted dispersal. Little is known about the effects...
Authors
Bo Zhang, Don DeAngelis, Wei-Ming Ni, Yuanshi Wang, Lu Zhai, Alex Kula, Shuang Xu, J. David Van Dyken
Digging into the geologic record of environmentally driven changes in coral-reef development Digging into the geologic record of environmentally driven changes in coral-reef development
This lesson uses data based on real-world geological archives to guide students toward understanding how climate and oceanography have impacted coral-reef growth over the last 5000 years. The objective of the lesson is for students to determine the relationship between environmental variability and coral-reef development over millennial timescales. In this activity, students will: 1...
Authors
Philip M. Gravinese, Richard B. Aronson, Lauren Toth
Changing suspended sediment in United States rivers and streams: Linking sediment trends to changes in land use/cover, hydrology and climate Changing suspended sediment in United States rivers and streams: Linking sediment trends to changes in land use/cover, hydrology and climate
Sediment is one of the leading pollutants in rivers and streams across the United States (US) and the world. Between 1992 and 2012, concentrations of annual mean suspended sediment decreased at over half of the 137 stream sites assessed across the contiguous US. Increases occurred at less than 25 % of the sites, and the direction of change was uncertain at the remaining 25 %. Sediment...
Authors
Jennifer C. Murphy
Legacy and current‐use contaminants in sediments alter macroinvertebrate communities in southeastern US Streams Legacy and current‐use contaminants in sediments alter macroinvertebrate communities in southeastern US Streams
Sediment contamination of freshwater streams in urban areas is a recognized and growing concern. As a part of a comprehensive regional stream‐quality assessment, stream‐bed sediment was sampled from streams spanning a gradient of urban intensity in the Piedmont ecoregion of the southeastern United States. We evaluated relations between a broad suite of sediment contaminants (metals...
Authors
Patrick W. Moran, Nile E. Kemble, Ian R. Waite, Barbara Mahler, Lisa H. Nowell, Peter C. Van Metre