Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10437
Predictions of anthropogenic background PFAS concentrations in soil and relation to bedrock lithology and groundwater quality Predictions of anthropogenic background PFAS concentrations in soil and relation to bedrock lithology and groundwater quality
Detectable concentrations of per- and polyfluoroalkyl substances (PFAS) have been observed in soils in remote areas and presumably originate from atmospheric deposition. These anthropogenic background concentrations may enable some PFAS to leach to groundwater at levels that exceed regulatory criteria for drinking water. However, anthropogenic background soil concentrations and their...
Authors
Andrea K. Tokranov, Leah M. Santangelo, Joseph D. Ayotte, Sydney M. Welch, Kate Emma A. Schlosser, Jeffrey M. Marts, Anthony F. Drouin, Harrison Roakes
Trends in subdaily to daily rainfall in Florida, 1990–2022 Trends in subdaily to daily rainfall in Florida, 1990–2022
Changing rainfall patterns and intensifying rainfall extremes affect urban infrastructure and can increase flash-flood risk. Understanding how climate change has altered rainfall can support state and local agencies as they adapt and build resiliency. In this study, rainfall data from 23 weather stations in Florida were used to examine temporal and spatial trends over the period 1990...
Authors
Saira Haider, Michelle M. Irizarry-Ortiz, Jayantha T. Obeysekera, Ana C. Maran, Tarana Solaiman, Brett D. Johnston
Mangrove microbiomes as drivers of ecosystem recovery and restoration success Mangrove microbiomes as drivers of ecosystem recovery and restoration success
The microbes found in the rhizosphere, roots, leaves and stem surfaces and within the internal tissues of mangrove vegetation and their environment constitute the microbiome of the ecosystem. The organisms in the microbiome include bacteria, protozoa, fungi, algae, amoebas, and slime molds, which assist in maintaining and restoring mangrove ecosystems. This review explores the role of...
Authors
Elijah I. Ohimain, Robert Eugene Turner, Beth Middleton
Tracking toxins: A pilot investigation of cyanotoxins in north-central Tennessee’s surface waters and wells Tracking toxins: A pilot investigation of cyanotoxins in north-central Tennessee’s surface waters and wells
Cyanobacterial toxins (cyanotoxins) threaten aquatic ecosystems and human health, yet the factors influencing their production and distribution in freshwater remain unclear. In north-central Tennessee, nutrient-rich runoff from agricultural and urban areas, combined with a karst landscape that supports drinking and recreational water use, heightens the need to understand cyanotoxin...
Authors
Kristi Lynn Hill, Andrea Jaegge, Devin M. Moore, Thomas D. Byl
Modeling the seasonality of wind-driven hydrocarbon waves in Titan’s polar lakes Modeling the seasonality of wind-driven hydrocarbon waves in Titan’s polar lakes
Titan, the only body in the solar system aside from Earth with standing liquids on its surface, has polar hydrocarbon lakes and seas. As Titan’s atmosphere generates light winds, there should be waves on the surface of these lakes and seas, yet, direct wave observations are scant. We introduce and use PlanetWaves, an open source 4D spectral wave model, to study Titan’s waves and create...
Authors
Charlene E. Detelich, Una G. Schneck, Alexander G. Hayes, Milan Curcic, Rose Elizabeth Palermo, Andrew D. Ashton, J. Taylor Perron, Juan M. Lora, Jordan Steckloff
CoralCache: A virtual coral core repository for transparent and reproducible annual growth rate analyses CoralCache: A virtual coral core repository for transparent and reproducible annual growth rate analyses
As science fields enter the Big Data revolution, open-access repositories are essential for addressing larger-scale questions than are possible for single researchers by making data findable, accessible, interoperable, and reusable (FAIR). Furthermore, transparent data and code are increasingly important for reproducible research, especially for data types that inherently require...
Authors
Thomas M. DeCarlo, Oliwia Jasnos, Avi Strange, Andreas Andersson, Angel T. Bautista VII, Sierra Kathleen Bloomer, Isaiah W. Bolden, Maartje Bosman, Thomas Brachert, Giulia B. Braz, Gabriel O. Cardoso, J. P. Carricart-Ganivet, Jessica E. Carilli, Karl D. Castillo, Leticia Cavole, Sylvia Chan, Xuefei Chen, Ben Chomitz, Thierry Correge, Travis A. Courtney, Mikayla Diegan, Juan Pablo D'Olivio, Rob Dunbar, Ian C. Enochs, Ludmilla Falsarella, Thomas Felis, Gabriela Gutierrez-Estrada, Brighton Hedger, Shijian Hu, Seamus Jameson, Stacy D. Jupiter, Paul Kench, Diego Kersting, Ke Lin, Kerstin Lindblad-Toh, Yi-Wei Liu, Carla A. Lorigados, Derek P. Manzello, Malcolm T. McCulloch, Miguel Mies, Rodrigo L. Moura, Ferdinand K.J. Oberle, Natan Pereira, Nancy G. Prouty, Riovie D. Ramos, Haojima Ren, Emma Ryan, Diane M. Thompson, Lauren T. Toth, Marina Vergotti, Jody M. Webster, Jens Zinke
Bird migration and energetics simulations incorporating oil spill effects Bird migration and energetics simulations incorporating oil spill effects
Oil spills are well-known for causing acute mortality of birds, but sublethal and delayed impacts are less understood. Focusing on the mallard (Anas platyrhynchos), we used simulation modeling to explore how sublethal oiling may affect avian survival and breeding ground body condition. We used empirically informed migration and energetics simulations to model hypothetical spills...
Authors
Benjamin M West, Mark L. Wildhaber, Wayne E. Thogmartin, Michael J. Hooper
Continuous stream discharge, salinity, and associated data collected in the lower St. Johns River and its tributaries, Florida, 2023 Continuous stream discharge, salinity, and associated data collected in the lower St. Johns River and its tributaries, Florida, 2023
The U.S. Army Corps of Engineers, Jacksonville District, deepened the St. Johns River channel in Jacksonville, Florida, to accommodate larger, fully loaded cargo vessels. The U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers, monitored stage, discharge, and (or) water temperature and salinity at 26 continuous data collection sites in the St. Johns River...
Authors
Jennifer N. Carson, Matthew T. Benacquisto
Melanoma and other melanistic lesions in brown bullhead Ameiurus nebulosus from waterbodies in the northeastern United States and Canada: Identification of risk factors Melanoma and other melanistic lesions in brown bullhead Ameiurus nebulosus from waterbodies in the northeastern United States and Canada: Identification of risk factors
Melanistic lesions, including non-raised black areas due to proliferations of melanocytes and melanomacrophages in the dermis and epidermis, as well as raised black areas consistent with melanoma, are described in brown bullhead (BBH) Ameiurus nebulosus from three water bodies in the northeastern United States and Quebec, Canada. First observed in the Vermont portion of Lake Memphremagog...
Authors
Vicki S. Blazer, P. Emerson, M. Bodnar, Thomas Jones, D. R. Russel, M. Pehrson, Cheyenne R. Smith, Danielle M. Cleveland, Mark J. Henderson, Patricia Mazik
Not so fatal attraction: Captive female Burmese Python lures do not improve wild python detection Not so fatal attraction: Captive female Burmese Python lures do not improve wild python detection
The ongoing invasion of Python bivittatus (Burmese Python; henceforth, Python) across the Greater Everglades Ecosystem (GEE) has led to near total collapse of the affected mammal community over the past few decades. Management efforts to eliminate Pythons and control their spread have been hampered by the Python's low detectability, which may be improved by using a lure. In controlled...
Authors
Alex D. Potash, Maggie Jones, Michael Kirkland, Jenna Cole, Kristen Hart, Robert A. McCleery
Accounting for emigration reveals high survival and bimodal size at departure from a loggerhead sea turtle (Caretta caretta) foraging area Accounting for emigration reveals high survival and bimodal size at departure from a loggerhead sea turtle (Caretta caretta) foraging area
The life history of hard-shelled sea turtles includes several ontogenetic shifts in habitat use and these complex permanent emigration patterns can impact estimates of stage-specific population rates, including survival. We developed several multistate mark recapture models to estimate survival of adult and juvenile loggerhead turtles from a coastal bay in the northern Gulf of America...
Authors
Caroline M. Blommel, Margaret Lamont, William L. Kendall
Tropicalization of the temperate zone: Spatiotemporal variability of winter warming and declining freeze days across the United States Tropicalization of the temperate zone: Spatiotemporal variability of winter warming and declining freeze days across the United States
We investigate changes in cool-season and winter daily minimum (Tmin) and maximum (Tmax) temperatures, and the occurrence of freeze days, from 1952 to 2024 across the conterminous United States (CONUS). Emphasis is placed on the tropical-temperate transition zone (TTTz) in the southeastern CONUS. During winter, ~70% of the land area exhibited Tmin warming rates exceeding those of Tmax...
Authors
Vincent M. Brown, Derek T. Thompson, Buren B. DeFee, Michael Osland, Barry D. Keim