Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10352
Fire disturbance influences endangered Cape Sable Seaside Sparrow (Ammopiza maritima mirabilis) relative bird count Fire disturbance influences endangered Cape Sable Seaside Sparrow (Ammopiza maritima mirabilis) relative bird count
Periodicity of fire disturbance is a known driver of ecosystem function and is reported as important in both promoting and maintaining viable breeding habitat for the endangered Cape Sable Seaside Sparrow (Ammospiza maritima mirabilis; CSSS). In south Florida, the CSSS serves as a fine-scale indicator of the marl and mixed-marl prairie communities of the Florida Everglades. The CSSS...
Authors
Allison Benscoter, James Beerens, Leonard G. Pearlstine, Stephanie Romanach
Groundwater availability in the Ozark Plateaus aquifer system Groundwater availability in the Ozark Plateaus aquifer system
Executive Summary The study described in this report, initiated by the U.S. Geological Survey in 2014, was designed to evaluate fresh groundwater resources within the Ozark Plateaus, central United States, as an area within a broader national assessment of groundwater availability. The goals of the Ozark study were to evaluate historical effects of human activities on water levels and...
Authors
Brian R. Clark, Leslie L. Duncan, Katherine J. Knierim
Assessment of uncertainty in multi-model means of downscaled south Florida precipitation for projected (2019-2099) climate Assessment of uncertainty in multi-model means of downscaled south Florida precipitation for projected (2019-2099) climate
South Florida resource management, particularly the Everglades restoration effort, is beginning to consider projections of precipitation from multiple climate models for decision-making. Because precipitation changes can significantly affect the Everglades ecosystem, characterization of precipitation projection uncertainty is important for resource management decisions, and reduction of
Authors
Johnna Infanti, Ben P. Kirtman, Nicholas Aumen, John F. Stamm, Colin Polsky
Hysteretic response of solutes and turbidity at the event scale across forested tropical montane watersheds Hysteretic response of solutes and turbidity at the event scale across forested tropical montane watersheds
Concentration-discharge relationships are a key tool for understanding the sourcing and transport of material from watersheds to fluvial networks. Storm events in particular provide insight into variability in the sources of solutes and sediment within watersheds, and the hydrologic pathways that connect hillslope to stream channel. Here we examine high-frequency sensor-based specific...
Authors
Adam S. Wymore, Miguel C. Leon, James B. Shanley, William C. McDowell
Low streamflow trends at human-impacted and reference basins in the United States Low streamflow trends at human-impacted and reference basins in the United States
We present a continent-scale exploration of trends in annual 7-day low streamflows at 2482 U.S. Geological Survey streamgages across the conterminous United States over the past 100, 75, and 50 years (1916–2015, 1941–2015 and 1966–2015). We used basin characteristics to identify subsets of study basins representative of reference basins with streamflow relatively free from human effects...
Authors
Robert W. Dudley, Robert M. Hirsch, Stacey A. Archfield, Annalise G. Blum, Benjamin Renard
Estimated use of water in Georgia for 2015 and water-use trends, 1985–2015 Estimated use of water in Georgia for 2015 and water-use trends, 1985–2015
Water-withdrawal, water-use, and water-return information have been collected and compiled for each county in Georgia every 5 years since 1980 using data obtained from various Federal, State, and private agencies, as well as additional online sources. For 2015, water use, water withdrawal, and water returns were estimated for each county, water-planning region, major river basin, and...
Authors
Jaime A. Painter
Hurricane Matthew: Predictions, observations, and an analysis of coastal change Hurricane Matthew: Predictions, observations, and an analysis of coastal change
Hurricane Matthew, the strongest Atlantic hurricane of the 2016 hurricane season, made land-fall south of McClellanville, S.C., around 1500 Coordinated Universal Time (UTC) on October 8, 2016. Hurricane Matthew affected the States of Florida, Georgia, South Carolina, and North Carolina along the U.S. Atlantic coastline. Numerous barrier islands were breached, and the erosion of beaches...
Authors
Justin J. Birchler, Kara S. Doran, Joseph W. Long, Hilary F. Stockdon
Late Quaternary evolution and stratigraphic framework influence on coastal systems along the north-central Gulf of Mexico, USA Late Quaternary evolution and stratigraphic framework influence on coastal systems along the north-central Gulf of Mexico, USA
Coastal systems in the Gulf of Mexico are threatened by reduced sediment supply, storm impacts and relative sea-level rise (RSLR). The geologic record provides insight into geomorphic evolution thresholds to these forcing mechanisms to help predict future barrier evolution in response to climate change. This study synthesizes ∼2100 km of geophysical data, 700 + sediment cores, and 62...
Authors
Robert S Hollis, Davin J Wallace, Michael D Miner, Nina S Gal, Clayton H Dike, James Flocks
Adapterama II: Universal amplicon sequencing on Illumina platforms (TaggiMatrix) Adapterama II: Universal amplicon sequencing on Illumina platforms (TaggiMatrix)
Next-generation sequencing (NGS) of amplicons is used in a wide variety of contexts. In many cases, NGS amplicon sequencing remains overly expensive and inflexible, with library preparation strategies relying upon the fusion of locus-specific primers to full-length adapter sequences with a single identifying sequence or ligating adapters onto PCR products. In Adapterama I, we presented...
Authors
Travis C Glenn, Todd W Pierson, Natalia J Bayona-Vasquez, Troy J. Kieran, Sandra L. Hoffberg, Jesse Thomas, Daniel E. Lefever, John W. Finger Jr., Bei Gao, Xiaoming Bian, Swarnali Louha, Ramya Kolli, Kerin Bentley, Julie Rushmore, Kelvin Wong, Michael Rothrock, Anna M. McKee, Tai L. Guo, Rodney Mauricio, Marirosa Molina, Brian Cummings, Lawrence H. Lash, Kun Lu, Gregory S. Gilbert, Stephen P. Hubbell, Brant C. Faircloth
Tropical cyclones and the organization of mangrove forests: A review Tropical cyclones and the organization of mangrove forests: A review
Background Many mangrove ecosystems are periodically exposed to high velocity winds and surge from tropical cyclones and often recover with time and continue to provide numerous societal benefits in the wake of storm events. Scope This review focuses on the drivers and disturbance mechanisms (visible and functional) that tropical cyclones of various intensities have on mangrove ecosystem
Authors
Ken Krauss, Michael Osland
Catalog of microscopic organisms of the Everglades, part 2—The desmids of the Arthur R. Marshall Loxahatchee National Wildlife Refuge Catalog of microscopic organisms of the Everglades, part 2—The desmids of the Arthur R. Marshall Loxahatchee National Wildlife Refuge
The Arthur R. Marshall Loxahatchee National Wildlife Refuge (refuge), Boynton Beach, Florida, contains approximately 147,000 acres southeast of Lake Okeechobee. Water quality in the interior portion of the refuge is strongly influenced by rainfall, resulting in slightly acidic waters with low dissolved ions. Desmids, a unique, ornate group of green algae loosely associated with submerged...
Authors
Barry H. Rosen, Katherine N. Stahlhut, John D. Hall
Changes in event‐based streamflow magnitude and timing after suburban development with infiltration‐based stormwater management Changes in event‐based streamflow magnitude and timing after suburban development with infiltration‐based stormwater management
Green stormwater infrastructure implementation in urban watersheds has outpaced our understanding of practice effectiveness on streamflow response to precipitation events. Long‐term monitoring of experimental urban watersheds in Clarksburg, Maryland, USA, provided an opportunity to examine changes in event‐based streamflow metrics in two treatment watersheds that transitioned from...
Authors
Kristina G. Hopkins, Aditi S. Bhaskar, Sean Woznicki, Rosemary M. Fanelli