Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10071
The LTAR cropland Common Experiment at Lower Chesapeake Bay
The Lower Chesapeake Bay (LCB) Long-Term Agroecosystem Research (LTAR) Common Experiment (CE) located in Beltsville, MD, focuses on research of concern to producers of the major regional crops, which are corn (Zea mays L.), soybean [Glycine max (L.) Merr.], wheat (Triticum aestivum L.), and various forage species. Livestock production in the region includes broiler and laying chickens...
Authors
Gwen Bagley, Victoria E.P. Ackroyd, Michelle A. Cavagielli, K.E. White, Harry H. Schomberg, E.P. Law, K. Bejleri, W. Dean Hively, M.H.H. Fischel, Jude E. Maul, Cathleen J. Hapeman, Gregory W. McCarty, Wayne Dulaney, Dennis J. Timlin, Steven B. Mirsky
Warmwater fish in rivers
In addition to the gears described in the previous version, this edition includes an updated water body definition that is inclusive of Mexico and Canada as well as standard methods for the use of cast nets in warmwater rivers. There were organizational changes in the trawling and hoop-net sections to make them consistent with the format for this edition, but the methods themselves have...
Authors
Brenda M. Pracheil, Patrick Braaten, Everardo Barba Macias, Christopher S. Guy, David P Herzog, Martin J. Hamel, John C Justice, Alison R Loeppky, Jon M Mollish, Jeffrey W Simmons, Sara J. Tripp
In vitro impacts of glyphosate on manatee lymphocytes
Exposure to contaminants, such as the herbicide glyphosate, can suppress protective immune functions. Glyphosate is the herbicide most used worldwide and has been found in the plasma of more than 50 % of the Florida manatees (Trichechus manatus latirostris) and all-year-round in their aquatic environment. Our objectives were to analyze the consequences of glyphosate exposure on their...
Authors
Maite De Maria, Natalia Garcia-Reyero, Nicole I. Stacy, Jeffrey R. Abbott, Fahong Yu, Ruyiu Pu, Kevin J. Kroll, Francisco R. Barboza, Michael T. Walsh, Juan G. Perez-Jimenez, David A. Moraga Amador, Margaret Hunter, Nancy D. Denslow
Early detection of wildlife disease pathogens using CRISPR-Cas system methods
Wildlife diseases are a considerable threat to human health, conservation, and the economy. Surveillance is a critical component to mitigate the impact of animal diseases in these sectors. To monitor human diseases, CRISPR-Cas (clustered regularly interspaced short palindromic repeats-CRISPR-associated protein) biosensors have proven instrumental as diagnostic tools capable of detecting...
Authors
Adam Alberto Perez, Guelaguetza Vazquez-Meves, Margaret Hunter
Identifying and filling critical knowledge gaps can optimize financial viability of blue carbon projects in tidal wetlands
One of the world’s largest “blue carbon” ecosystems, Louisiana’s tidal wetlands on the US Gulf of Mexico coast, is rapidly being lost. Louisiana’s strong legal, regulatory, and monitoring framework, developed for one of the world’s largest tidal wetland systems, provides an opportunity for a programmatic approach to blue carbon accreditation to support restoration of these ecologically...
Authors
Tim J.B. Carruthers, S. Beaux Jones, Megan K. Terrell, Jonathan F. Scheibly, Brendan J. Player, Valerie A. Black, Justin R. Ehrenwerth, Patrick D. Biber, Rod M. Connolly, Steve Crooks, Jason P. Curole, Kelly M. Darnell, Alyssa M. Dausman, Allison L. DeJong, Shawn M. Doyle, Christopher R. Esposito, Daniel A. Friess, James W. Fourqurean, Ioannis Y. Georgiou, Gabriel D. Grimsditch, Songjie He, Eva R. Hillmann, Guerry O. Holm, Jennifer Howard, Hoonshin Jung, Stacy D. Jupiter, Erin P. Kiskaddon, Ken Krauss, Paul S. Lavery, Bingqing Liu, Catherine E. Lovelock, Sarah K. Mack, Peter I. Macreadie, Karen J. McGlathery, J. Patrick Megonigal, Brian J. Roberts, Scott Settelmyer, Lorie W. Staver, Hilary J. Stevens, Ariana Eileen Sutton-Grier, Jorge A. Villa, John R. White, Michelle Waycott
Predictive modeling reveals elevated conductivity relative to background levels in freshwater tributaries within the Chesapeake Bay watershed, USA
Elevated conductivity (i.e., specific conductance or SC) causes osmotic stress in freshwater aquatic organisms and may increase the toxicity of some contaminants. Indices of benthic macroinvertebrate integrity have declined in urban areas across the Chesapeake Bay watershed (CBW), and more information is needed about whether these declines may be due to elevated conductivity. A...
Authors
R. Fanelli, Joel Moore, Charles C. Stillwell, Andrew Sekellick, Richard Walker
Mangrove freeze resistance and resilience across a tropical-temperate transitional zone
Freeze events govern the distribution and structure of mangrove ecosystems, especially in tropical-temperate transitional zones. Understanding mangrove responses to freezing is crucial for predicting their poleward expansion under climate change. However, there is a need for field-based measurements of mangrove freeze resistance and resilience.After an extreme winter storm in December...
Authors
Yiyang Kang, David A. Kaplan, Michael Osland
Handling effects on dispersal of PIT-tagged Flannelmouth Sucker
ObjectiveHandling and tagging migrating fish might alter their behavior, limiting inference from mark–recapture studies. Posthandling flight of tributary spawning Flannelmouth Sucker Catostomus latipinnis was previously identified in Coal Creek in the upper Colorado River basin. Our objective was to determine if similar issues were present at McElmo Creek in the San Juan River basin...
Authors
Sophia Marie Bonjour, Keith B. Gido, Mark C. McKinstry
Benthic community metrics track hydrologically stressed mangrove systems
Mangrove restoration efforts have increased in order to help combat their decline globally. While restoration efforts often focus on planting seedlings, underlying chronic issues, including disrupted hydrological regimes, can hinder restoration success. While improving hydrology may be more cost-effective and have higher success rates than planting seedlings alone, hydrological...
Authors
Amanda Demopoulos, Jill Bourque, Jennifer McClain Counts, Nicole Cormier, Ken Krauss
Predictions of groundwater PFAS occurrence at drinking water supply depths in the United States
Per- and polyfluoroalkyl substances (PFAS), known colloquially as “forever chemicals”, have been associated with adverse human health effects and have contaminated drinking water supplies across the United States owing to their long-term and widespread use. People in the United States may unknowingly be drinking water that contains PFAS because of a lack of systematic analysis...
Authors
Andrea K. Tokranov, Katherine Marie Ransom, Laura M. Bexfield, Bruce D. Lindsey, Elise Watson, Danielle Dupuy, Paul Stackelberg, Miranda S. Fram, Stefan Voss, James A. Kingsbury, Bryant Jurgens, Kelly Smalling, Paul M. Bradley
Understanding gaps in early detection of and rapid response to invasive species in the United States: A literature review and bibliometric analysis
While concepts regarding invasive species establishment patterns and eradication possibilities have long been a topic of invasion biology, the specific terminology referring to early detection of and rapid response to (EDRR) invasive species emerged in scientific literature during the early 2000s. Since then, the EDRR approach has expanded to include a suite of detection, planning, and...
Authors
Amy Kristine Wray, Aimee Christine Agnew, Mary Brown, Emily Marie Dean, Nicole D Hernandez, Audrey Jordon, Cayla Morningstar, Sara Elizabeth Piccolomini, Harrison Alexander Pickett, Wesley Daniel, Brian Reichert
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...
Authors
Bethany K. Kunz, Hardin Waddle, Nicholas S. Green