Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9974
In some places, in some cases, and at some times, harmful algal blooms are the greatest threat to inland water quality
No abstract available.
Authors
Bryan W. Brooks, James M. Lazorchak, Meredith D.A. Howard, Mari-Vaughn V. Johnson, Steve L. Morton, Dawn A.K. Perkins, Euan D. Reavie, Geoffrey L. Scott, Stephanie A. Smith, Jeffery A. Steevens
Biogeographic comparison of Lophelia-associated bacterial communities in the Western Atlantic reveals conserved core microbiome
Over the last decade, publications on deep-sea corals have tripled. Most attention has been paid to Lophelia pertusa, a globally distributed scleractinian coral that creates critical three-dimensional habitat in the deep ocean. The bacterial community associated with L. pertusa has been previously described by a number of studies at sites in the Mediterranean Sea, Norwegian fjords, off Great Brita
Authors
Christina A. Kellogg, Dawn B. Goldsmith, Michael A. Gray
Arsenic and uranium in private wells in Connecticut, 2013-15
The occurrence of arsenic and uranium in groundwater at concentrations that exceed drinking-water standards is a concern because of the potential adverse effects on human health. Some early studies of arsenic occurrence in groundwater considered anthropogenic causes, but more recent studies have focused on sources of naturally occurring arsenic to groundwater, such as minerals within aquifer mater
Authors
Sarah M. Flanagan, Craig J. Brown
How do en route events around the Gulf of Mexico influence landbird populations
Habitats around the Gulf of Mexico (GOM) provide critical resources for Nearctic–Neotropical migratory landbirds, the majority of which travel across or around the GOM every spring and fall as they migrate between temperate breeding grounds in North America and tropical wintering grounds in the Caribbean and Central and South America. At the same time, ecosystems in the GOM are changing rapidly, w
Authors
Emily B. Cohen, Wylie C. Barrow, Jeffrey J. Buler, Jill L. Deppe, Andrew Farnsworth, Peter P. Marra, Scott R. McWilliams, David W Mehlman, R. Randy Wilson, Mark S Woodrey, Frank R. Moore
Microbial formation of labile organic carbon in Antarctic glacial environments
Roughly six petagrams of organic carbon are stored within ice worldwide. This organic carbon is thought to be of old age and highly bioavailable. Along with storage of ancient and new atmospherically deposited organic carbon, microorganisms may contribute substantially to the glacial organic carbon pool. Models of glacial microbial carbon cycling vary from net respiration to net carbon fixation. S
Authors
H.J. Smith, R. Foster, D.M. McKnight, John T. Lisle, S. Littmann, M.M.M. Kuypers, C.M. Foreman
Tropical river suspended sediment and solute dynamics in storms during an extreme drought
Droughts, which can strongly affect both hydrologic and biogeochemical systems, are projected to become more prevalent in the tropics in the future. We assessed the effects of an extreme drought during 2015 on stream water composition in the Luquillo Mountains of Puerto Rico. We demonstrated that drought base flow in the months leading up to the study was sourced from trade-wind orographic rainfal
Authors
Kathryn E. Clark, James B. Shanley, Martha A. Scholl, Nicolas Perdrial, Julia N. Perdrial, Alain F. Plante, William H. McDowell
The history of mercury pollution near the Spolana chlor-alkali plant (Neratovice, Czech Republic) as recorded by Scots pine tree rings and other bioindicators
We assessed > 100 years of mercury (Hg) pollution recorded in the tree rings of Scots Pine near a Czech chlor-alkali plant operating since 1941. Hg concentrations in tree rings increased with the launching of plant operations and decreased when Hg emissions decreased in 1975 due to an upgrade in production technology. Similar to traditional bioindicators of pollution such as pine needles, bark and
Authors
Tomáš Navrátil, Martin Šimeček, James B. Shanley, Jan Rohovec, Maria Hojdová, Jakub Houška
Coal-tar-based pavement sealants—a potent source of PAHs
P avement sealants are applied to the asphalt pavement of many parking lots, driveways, and even playgrounds in North America (Figure 1), where, when first applied, they render the pavement glossy black and looking like new. Sealant products used commercially in the central, eastern, and northern United States typically are coal-tarbased, whereas those used in the western United States typically a
Authors
Barbara Mahler, Peter C. Van Metre
Guidelines for preparation of State water-use estimates for 2015
The U.S. Geological Survey (USGS) has estimated the use of water in the United States at 5-year intervals since 1950. This report describes the water-use categories and data elements used for the national water-use compilation conducted as part of the USGS National Water-Use Science Project. The report identifies sources of water-use information, provides standard methods and techniques for estima
Freshwater mussels (Unionidae): Central and West Texas Final Report
The goal of this study was two-fold: (1) assess the taxonomic identity and phylogenetic
placement of Quadrula aurea (Golden Orb) [Federal Candidate], Quadrula houstonensis
(Smooth Pimpleback) [Federal Candidate], and Quadrula petrina (Texas Pimpleback) [Federal
Candidate] through mitochondrial and nuclear DNA sequencing; and (2) provided additional
information on the distribution and abundance for
Authors
Charles R. Randklev, Nathan Johnson, T. J. Miller, J.M. Morton, J. Dudding, K. Skow, B. Boseman, M. Hart, E.T. Tsakiris, K. Inoue, R.R. Lopez
Ecological regime shift drives declining growth rates of sea turtles throughout the West Atlantic
Somatic growth is an integrated, individual-based response to environmental conditions, especially in ectotherms. Growth dynamics of large, mobile animals are particularly useful as bio-indicators of environmental change at regional scales. We assembled growth rate data from throughout the West Atlantic for green turtles, Chelonia mydas, which are long-lived, highly migratory, primarily herbivorou
Authors
Karen A. Bjorndal, Alan B. Bolten, Milani Chaloupka, Vincent S. Saba, Cláudio Bellini, Maria A.G. Marcovaldi, Armando J.B. Santos, Luis Felipe Wurdig Bortolon, Anne B. Meylan, Peter A. Meylan, Jennifer Gray, Robert Hardy, Beth Brost, Michael Bresette, Jonathan C. Gorham, Stephen Connett, Barbara Van Sciver Crouchley, Mike Dawson, Deborah Hayes, Carlos E. Diez, Robert P. van Dam, Sue Willis, Mabel Nava, Kristen M. Hart, Michael S. Cherkiss, Andrew Crowder, Clayton Pollock, Zandy Hillis-Starr, Fernando A. Muñoz Tenería, Roberto Herrera-Pavón, Vanessa Labrada-Martagón, Armando Lorences, Ana Negrete-Philippe, Margaret M. Lamont, Allen M. Foley, Rhonda Bailey, Raymond R. Carthy, Russell Scarpino, Erin McMichael, Jane A. Provancha, Annabelle Brooks, Adriana Jardim, Milagros López-Mendilaharsu, Daniel González-Paredes, Andrés Estrades, Alejandro Fallabrino, Gustavo Martínez-Souza, Gabriela M. Vélez-Rubio, Ralf H. Boulon, Jaime Collazo, Robert Wershoven, Vicente Guzmán Hernández, Thomas B. Stringell, Amdeep Sanghera, Peter B. Richardson, Annette C. Broderick, Quinton Phillips, Marta C. Calosso, John A.B. Claydon, Tasha L. Metz, Amanda L. Gordon, Andre M. Landry, Donna J. Shaver, Janice Blumenthal, Lucy Collyer, Brendan J. Godley, Andrew McGowan, Matthew J. Witt, Cathi L. Campbell, Cynthia J. Lagueux, Thomas L. Bethel, Lory Kenyon
Created mangrove wetlands store belowground carbon and surface elevation change enables them to adjust to sea-level rise
Mangrove wetlands provide ecosystem services for millions of people, most prominently by providing storm protection, food and fodder. Mangrove wetlands are also valuable ecosystems for promoting carbon (C) sequestration and storage. However, loss of mangrove wetlands and these ecosystem services are a global concern, prompting the restoration and creation of mangrove wetlands as a potential soluti
Authors
Ken W. Krauss, Nicole Cormier, Michael J. Osland, Matthew L. Kirwan, Camille L. Stagg, Janet A. Nestlerode, Marc J. Russell, Andrew From, Amanda C. Spivak, Darrin D. Dantin, James E. Harvey, Alejandro E. Almario