Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10382
Enhancing the predictability of ecology in a changing world: A call for an organism-based approach Enhancing the predictability of ecology in a changing world: A call for an organism-based approach
Ecology is usually very good in making descriptive explanations of what is observed, but is often unable to make predictions of the response of ecosystems to change. This has implications in a human-dominated world where a suite of anthropogenic stresses are threatening the resilience and functioning of ecosystems that sustain mankind through a range of critical regulating and supporting...
Authors
C.J.M. Musters, Don DeAngelis, Jeffrey A. Harvey, Wolf M. Mooij, Peter M. van Bodegom, Geert R. de Snoo
Riparian spiders: Sentinels of polychlorinated dibenzo-p-dioxin and dibenzofuran-contaminated sediment Riparian spiders: Sentinels of polychlorinated dibenzo-p-dioxin and dibenzofuran-contaminated sediment
Polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran (PCDD/F) are persistent, toxic, and bioaccumulative. Currently, PCDD/F monitoring programs primarily use fish and birds with potentially large home ranges to monitor temporal trends over broad spatial scales; sentinel organisms that provide targeted sediment contaminant information across small geographic areas have yet to...
Authors
Gale B. Beaubien, Dalon P. White, David Walters, Ryan R. Otter, Ken M. Fritz, Brian Crone, Marc A. Mills
Continuous stream discharge, salinity, and associated data collected in the lower St. Johns River and its tributaries, Florida, 2021 Continuous stream discharge, salinity, and associated data collected in the lower St. Johns River and its tributaries, Florida, 2021
The U.S. Army Corps of Engineers, Jacksonville District, is deepening the St. Johns River channel in Jacksonville, Florida, by 7 feet along 13 miles of the river channel beginning at the mouth of the river at the Atlantic Ocean, in order to accommodate larger, fully loaded cargo vessels. The U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, monitored stage...
Authors
Patrick J. Ryan
Improvements to estimate ADCP uncertainty sources for discharge measurements Improvements to estimate ADCP uncertainty sources for discharge measurements
The use of moving boat ADCPs (Acoustic Doppler Current Profilers) for discharge measurements requires identification of the sources and magnitude of uncertainty to ensure accurate measurements. Recently, a tool known as QUant was developed to estimate the contribution to the uncertainty estimates for each transect of moving-boat ADCP discharge measurements, by varying different sampling
Authors
Jose M. Diaz Lozada, Carlos M. Garcia, Kevin Oberg, Thomas M. Over, Federico Flores Nieto
The effects of substrate and sediment burial on survival of developing pallid sturgeon (Scaphirhynchus albus) and shovelnose sturgeon (S. platorynchus) embryos The effects of substrate and sediment burial on survival of developing pallid sturgeon (Scaphirhynchus albus) and shovelnose sturgeon (S. platorynchus) embryos
The shovelnose sturgeon (Scaphirhynchus platorynchus) and endangered pallid sturgeon (S. albus) deposit demersal and adhesive eggs in swift currents, near or over coarse substrate. Hydrographic surveys have demonstrated the dynamic nature of spawning habitats and that coarse substrates may episodically be buried (partially or completely) by fine sediments. To evaluate embryo survival of...
Authors
Kimberly Chojnacki, Amy E. George, Aaron J. DeLonay
A 1.2 billion pixel human-labeled dataset for data-driven classification of coastal environments A 1.2 billion pixel human-labeled dataset for data-driven classification of coastal environments
The world’s coastlines are spatially highly variable, coupled-human-natural systems that comprise a nested hierarchy of component landforms, ecosystems, and human interventions, each interacting over a range of space and time scales. Understanding and predicting coastline dynamics necessitates frequent observation from imaging sensors on remote sensing platforms. Machine Learning models...
Authors
Daniel D. Buscombe, Phillipe Alan Wernette, Sharon Fitzpatrick, Jaycee Favela, Evan B. Goldstein, Nicholas Enwright
Local weather and endogenous factors affect the initiation of migration in short- and medium-distance songbird migrants Local weather and endogenous factors affect the initiation of migration in short- and medium-distance songbird migrants
Migratory birds employ a variety of mechanisms to ensure appropriate timing of migration based on integration of endogenous and exogenous information. The cues to fatten and depart from the non-breeding area are often linked to exogenous cues such as temperature or precipitation and the endogenous program. Shorter distance migrants should rely heavily on environmental information when...
Authors
Theodore J. Zenzal, Darren Johnson, Frank R. Moore, Zoltán Németh
Climate change hotspots and implications for the global subsea telecommunications network Climate change hotspots and implications for the global subsea telecommunications network
A global network of subsea telecommunications cables underpins our daily lives, enabling >95% of global digital data transfer, $trillions/day in financial trading, and providing critical communications links, particularly to remote, low-income countries. Despite their importance, subsea cables and their landing stations are vulnerable to damage by natural hazards, including storm surges...
Authors
M.A. Clare, I.A. Yeo, L. Bricheno, Y Askenov, J. Browning, I.D. Haigh, T. Wahl, J. A. Hunter, C. Sams, Jason Chaytor, B.J. Bett, L. Carter
A model of transmissivity and hydraulic conductivity from electrical resistivity distribution derived from airborne electromagnetic surveys of the Mississippi River Valley Alluvial Aquifer, Midwest USA A model of transmissivity and hydraulic conductivity from electrical resistivity distribution derived from airborne electromagnetic surveys of the Mississippi River Valley Alluvial Aquifer, Midwest USA
Groundwater-flow models require the spatial distribution of the hydraulic conductivity parameter. One approach to defining this spatial distribution in groundwater-flow model grids is to map the electrical resistivity distribution by airborne electromagnetic (AEM) survey and establish a petrophysical relation between mean resistivity calculated as a nonlinear function of the resistivity...
Authors
Scott Ikard, Burke J. Minsley, James R. Rigby, Wade Kress
Structured decision making to prioritize regional bird monitoring needs Structured decision making to prioritize regional bird monitoring needs
Conservation planning for large ecosystems has multiple benefits but is often challenging to implement because of the multiple jurisdictions, species, and habitats involved. In addition, decision making at large spatial scales can be hampered because many approaches do not explicitly incorporate potentially competing values and concerns of stakeholders. After the Deepwater Horizon oil...
Authors
Auriel M. V. Fournier, R. Randy Wilson, Jeffrey S. Gleason, Evan M. Adams, Janell M. Brush, Robert J. Cooper, Stephen J. DeMaso, Melanie J. L. Driscoll, Peter C. Frederick, Patrick G.R. Jodice, Mary Ann Ottinger, David B. Reeves, Michael A. Seymour, Stephanie M. Sharuga, John M. Tirpak, William G. Vermillion, Theodore J. Zenzal, James E. Lyons, Mark S. Woodrey
Green turtle movements in the Gulf of Mexico: Tracking reveals new migration corridor and habitat use suggestive of MPA expansion Green turtle movements in the Gulf of Mexico: Tracking reveals new migration corridor and habitat use suggestive of MPA expansion
Globally, Marine Protected Areas are an important tool in the conservation of large marine vertebrates. Recent studies have highlighted the use of protected areas by imperiled green turtles (Chelonia mydas) in the southern Gulf of Mexico. To identify and characterize inter-nesting, migratory, and foraging areas for green turtles that nest in the northern Gulf of Mexico, we deployed 14...
Authors
Margaret Lamont, Allison Benscoter, Kristen Hart
Juxtaposition of intensive agriculture, vulnerable aquifers, and mixed chemical/microbial exposures in private-well tapwater in northeast Iowa Juxtaposition of intensive agriculture, vulnerable aquifers, and mixed chemical/microbial exposures in private-well tapwater in northeast Iowa
In the United States and globally, contaminant exposure in unregulated private-well point-of-use tapwater (TW) is a recognized public-health data gap and an obstacle to both risk-management and homeowner decision making. To help address the lack of data on broad contaminant exposures in private-well TW from hydrologically-vulnerable (alluvial, karst) aquifers in agriculturally-intensive...
Authors
Paul M. Bradley, Dana W. Kolpin, Darrin A. Thompson, Kristin M. Romanok, Kelly L. Smalling, Sara E. Breitmeyer, Mary C. Cardon, David M. Cwiertny, Nicola Evans, R. William Field, Michael J. Focazio, Laura E. Beane Freeman, Carrie E. Givens, James L. Gray, Gordon L. Hager, Michelle L. Hladik, Jonathan N. Hoffman, Rena R. Jones, Leslie K. Kanagy, Rachael F. Lane, R. Blaine McCleskey, Danielle Medgyesi, Elizabeth Medlock-Kakaley, Shannon M. Meppelink, Michael T. Meyer, Diana A. Stavreva, Mary H. Ward