Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9911
A gender and social vulnerability assessment approach
The report on an approach for gender and social vulnerability assessment is a supporting tool – or a guiding note – to assist the MRC to conduct the gender and vulnerability assessment in the Lower Mekong Basin. While the approach focuses on floods, droughts, and extreme storm events for the MRC’s future application, the overall gender and vulnerability framework described in this report could be
Authors
Saira Haider, Kathryn Powlen, Nina Burkardt, Matthew E. Andersen
Consumer isoscapes reveal heterogeneous food webs in deep-sea submarine canyons and adjacent slopes
The deep sea is the largest biome on earth, but one of the least studied despite its critical role in global carbon cycling and climate buffering. Deep-sea organisms largely rely on particulate organic matter from the surface ocean for energy – these organisms in turn play critical roles in energy transport, transformation, storage, and sequestration of carbon. Within the deep sea, submarine canyo
Authors
Amanda Demopoulos, Brian J. Smith, Jill Bourque, Jason Chaytor, Jennifer McClain Counts, Nancy G. Prouty, Steve W. Ross, Sandra Brooke, Gerard Duineveld, Furu Mienis
When to target control efforts? Using novel GPS telemetry to quantify drivers of invasive Argentine black and white tegu (Salvator merianae) movement
In South Florida, the Argentine black and white tegu (Salvator merianae), a large, omnivorous lizard, has become a recent threat to the Everglades ecosystem. The increase in tegu observations, especially near ecologically sensitive areas such as Everglades National Park, makes informed management critical to contain the tegu population. Using Very High Frequency (VHF) and Global Positioning System
Authors
Brittany M. Mason, Sergio A. Balaguera-Reina, Adam Benjamin, Frank J. Mazzotti, Hartwig H. Hochmair, Hardin Waddle
Integrative phylogenetic, phylogeographic and morphological characterisation of the Unio crassus species complex reveals cryptic diversity with important conservation implications
The global decline of freshwater mussels and their crucial ecological services highlight the need to understand their phylogeny, phylogeography and patterns of genetic diversity to guide conservation efforts. Such knowledge is urgently needed for Unio crassus, a highly imperilled species originally widespread throughout Europe and southwest Asia. Recent studies have resurrected several species fro
Authors
Manuel Lopes-Lima, Juergen Geist, Sarah Egg, Luboš Beran, Ani Bikashvili, Bert Van Bocxlaer, Arthur E. Bogan, Ivan N. Bolotov, O. A. Chelpanovskaya, Karel Douda, Vasco Fernandes, André Gomes-dos-Santos, Duarte V. Gonçalves, Mustafa E. Gürlek, Nathan Johnson, Ioannis Karaouzas, Ümit Kebapçı, Alexander V. Kondakov, Ralph Kuehn, Jasna Lajtner, Levan Mumladze, Karl-Otto Nagel, Eike Neubert, Martin Österling, John M. Pfeiffer, Vincent Prié, Nicoletta Riccardi, Jerzy Sell, Lea D. Schneider, Spase Shumka, Ioan Sirbu, Grita Skujienė, Chase H. Smith, Ronaldo Sousa, Katharina Stöckl, Jouni Taskinen, Amílcar Teixeira, Milcho Todorov, Teodora Trichkova, Maria Urbanska, Santtu Välilä, Simone Varandas, Joana Veríssimo, Ilya V. Vikhrev, G. Woschitz, Katarzyna Zając, Tadeusz Zając, David T. Zanatta, Alexandra Zieritz, Stamatis Zogaris, Elsa Froufe
Writing SMART objectives for natural resource and environmental management
In natural resource and environmental management, well-written objectives are critical for effective decision-making and the achievement of desired outcomes. This article aims to improve practitioners' ability to identify and write SMART (Specific, Measurable, Achievable, Relevant, Time-bound) objectives for natural resource and environmental management.We differentiate between research and manage
Authors
Caleb A. Aldridge, Michael E. Colvin
Exploring landscape and geologic controls on spatial patterning of streambank groundwater discharge in a mixed land use watershed
Preferential groundwater discharge features along stream corridors are ecologically important at local and stream network scales, yet we lack quantification of the multiscale controls on the spatial patterning of groundwater discharge. Here we identify physical attributes that best explain variation in the presence and lateral extent of preferential groundwater discharges along two 5th order strea
Authors
Kevin E. Jackson, Eric M. Moore, Ashley M. Helton, Adam B. Haynes, Janet R. Barclay, Martin Briggs
Insight into sources of benzene, TCE, and PFOA/PFAS in groundwater at Naval Air Station Whiting Field, Florida, through numerical particle-tracking simulations
Past waste-disposal activities at Naval Air Station Whiting Field (NASWF) have led to elevated concentrations of contaminants in the underlying sand and gravel aquifer. Contaminants include two of the most commonly detected chemicals in groundwater in many countries (benzene and trichloroethylene (TCE)) and the “forever chemicals” per- and poly-fluoroalkyl substances (PFAS) such as perfluorooctano
Authors
Eric Swain, James E. Landmeyer, Michael A. Singletary, Shannon E. Provenzano
Nerodia clarkii (Saltmarsh Watersnake). Predation
Predators of Nerodia clarkii are suspected to include larger species of crabs, fish, wading birds, snakes, alligators, and crocodiles. To our knowledge, there have only been two published observations of predation on N. clarkii, including a predation attempt from a Callinectes sapidus (Blue Crab) in Mississippi, USA and a successful predation by a Grus americana (Whooping Crane) in Texas, USA. Her
Authors
Bryna L. Daykin, Sidney T. Godfrey, Michael Cherkiss, Gareth Blakemore, Frank J. Mazzotti
Sea turtle density surface models along the United States Atlantic coast
Spatially explicit estimates of marine species distribution and abundance are required to quantify potential impacts from human activities such as military training and testing, fisheries interactions, and offshore energy development. There are 4 protected species of sea turtle (loggerhead, green, Kemp’s ridley, and leatherback) commonly found along the east coast of the USA, our study area, and w
Authors
Andrew DiMatteo, Jason J. Roberts, D. Todd Jones-Farrand, Lance Garrison, Kristen Hart, Robert D. Kenney, William A. McLellan, Kate Lomac-MacNair, Debra Palka, Meghan E. Rickard, Kelsey E. Roberts, Ann M. Zoidis, L. Sparks
Flow cytometric assessments of metabolic activity in bacterial assemblages provide insight into ecosystem condition along the Buffalo National River, Arkansas
The Buffalo National River (BNR), on karst terrain in Arkansas, is considered an extraordinary water resource. Water collected in Spring 2017 along BNR was metagenomically analyzed using 16S rDNA, and for 17 months (5/2017–11/2018), bacterial responses were measured in relation to nutrients sampled along a stretch of BNR near a concentrated animal feed operation (CAFO) on Big Creek. Because cell c
Authors
Jill Jenkins, Rassa Dale, Nina M. Hoffpauir, Brooke A Baudoin, Caroline Matkin, Lucas Driver, Shawn W Hodges, Bonnie L. Brown
20th century warming in the lower Florida Keys was dominated by increasing winter temperatures
Long-lived Atlantic coral species like Orbicella faveolata are important archives of oceanographic change in shallow, marine environments like the Florida Keys. Not only can coral-based records extend for multiple centuries beyond the limits of the instrumental record, but they can also provide a more accurate representation of in situ conditions than gridded interpolated sea-surface temperature (
Authors
Jennifer A. Flannery, Julie N. Richey, Lauren Toth, Madelyn Jean Mette
Stable isotopes reveal that foraging strategy dictates trophic response of salt marsh residents to black mangrove Avicennia germinans range expansion
Climate warming has facilitated the expansion of black mangrove Avicennia germinans (hereafter ‘Avicennia’) into smooth cordgrass Spartina alterniflora (hereafter ‘Spartina’) salt marshes in southeastern Louisiana (USA). As macrophytes contribute to soil organic matter (SOM) and primary production, this transition could alter the basal energy pathways supporting salt marsh food webs. We used bulk-
Authors
Katherine B. Loesser, Christina E. Powell, Brandeus Davis, Melissa Millman Baustian, Michael J. Polito