Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9967
Hydrogeologic framework and simulation of predevelopment groundwater flow, eastern Abu Dhabi Emirate, United Arab Emirates
Groundwater in eastern Abu Dhabi in the United Arab Emirates is an important resource that is widely used for irrigation and domestic supplies in rural areas. The U.S. Geological Survey and the Environment Agency—Abu Dhabi cooperated on an investigation to integrate existing hydrogeologic information and to answer questions about regional groundwater resources in Abu Dhabi by developing a numerica
Authors
Jack R. Eggleston, Thomas J. Mack, Jeffrey L. Imes, Wade Kress, Dennis W. Woodward, Daniel J. Bright
Sea turtle conservation: 10 ways you can help
Five species of sea turtle rely on Florida’s coastal and nearshore habitats for nesting during the summer months and foraging throughout the year (Figure 1).
- Loggerhead turtles, named for their large, block-shaped heads with strong jaw muscles for crushing benthic invertebrates, are the most common sea turtle species on Florida’s nesting beaches. They nest on beaches throughout much of the sta
Authors
Jessica E. Swindall, Holly K. Ober, Margaret Lamont, Raymond R. Carthy
Effects of box culverts on stream habitat, channel morphology, and fish and macroinvertebrate communities at selected sites in South Carolina, 2016–18
Much attention has been placed on the role that under-roadway culverts may have in inhibiting upstream fish movement because of altered hydrology and unsuitable conditions for accessing or swimming through the culvert. Other culvert effects related to habitat alterations or disturbance to macroinvertebrate communities have received relatively little attention. Entities responsible for culverts or
Authors
Jeffrey W. Riley, Karen M. Beaulieu, Stephen J. Walsh, Celeste A. Journey
Climate and local environment structure asynchrony and the stability of primary production in grasslands
Aim
Climate variability threatens to destabilize production in many ecosystems. Asynchronous species dynamics may buffer against such variability when a decrease in performance by some species is offset by an increase in performance of others. However, high climatic variability can eliminate species through stochastic extinctions or cause similar stress responses among species that reduce bufferin
Authors
B. Gilbert, A.S. MacDougall, T. Kadoya, M. Akasaka, J. R. Bennett, E.M. Lind, H. Flores-Moreno, J. Firn, Y. Hautier, E.T. Borer, E.W. Seabloom, P.B. Adler, E.E. Cleland, James Grace, W.S. Harpole, E.H. Esch, J.L. Moore, J. Knops, R. McCulley, B. Mortensen, J. Bakker, P.A. Fay
A multiscale approach to understanding migratory land bird habitat use of functional stopover habitat types and management efforts
It is hard to believe that many of the small “backyard birds” people see during spring and autumn can make migratory journeys that span thousands of kilometers. In fact, over two-thirds of all land birds (i.e., those not associated with aquatic habitats) and over half of the migratory species in North America move long distances to areas in Mexico, Central and South America, and the Caribbean isla
Authors
Theodore J. Zenzal
Cascadia Margin cold seeps: Subduction zone fluids, gas hydrates, and chemosynthetic habitats
Priority Geographic Area: The outer continental shelf and upper continental slope from Canada/U.S. border offshore Washington State to the Mendocino Fracture Zone (Northern California), entirely within the U.S. Exclusive Economic Zone (EEZ), from the outermost shelf to at least 2000 m water depth (Figure 1). Description of Priority Area: Since 2015, over a thousand water column gas plumes originat
Authors
Amanda Demopoulos, Carolyn D. Ruppel, Nancy G. Prouty, Janet Watt, Tamara Baumberger, David A Butterfield
Mapping, exploration, and characterization of the California continental margin and associated features from the California-Oregon border to Ensenada, Mexico
Priority Geographic Area: Both within and outside US Exclusive Economic Zone (EEZ). California continental margin. This area includes and continues south of the geographic area captured in the Watt et al. white paper. Description of Priority Area: The California continental margin, from the narrow shelf to abyssal depths, contains diverse seafloor features that influence benthic community types, b
Authors
Amanda Demopoulos, Nancy G. Prouty, Daniel S. Brothers, Janet Watt, James E. Conrad, Jason Chaytor, Chris Caldow
The ODD protocol for describing agent-based and other simulation models: A second update to improve clarity, replication, and structural realism
The Overview, Design concepts and Details (ODD) protocol for describing Individual- and Agent-Based Models (ABMs) is now widely accepted and used to document such models in journal articles. As a standardized document for providing a consistent, logical and readable account of the structure and dynamics of ABMs, some research groups also find it useful as a workflow for model design. Even so, ther
Authors
Volker Grimm, Steven F. Railsback, Christian Vincenot, Uta Berger, Cara Gallagher, Don DeAngelis, Bruce Edmonds, Jiaqi Ge, Jarl Giske, Jurgen Groeneveld, Alice S.A. Johnston, Alexander Miles, Jacob Nabe-Nielson, J. Gareth Polhill, Viktoriia Radchuk, Marie-Sophie Rohwader, Richard A. Stillman, Jan Theile, Daniel Ayllon
Scientific contributions of the Mangrove Macrobenthos and Management (MMM) conference series, 2000-2019
The conservation of mangrove forests has become an important international policy priority in recent decades, and is mirrored by a large increase in research interest. Multiple disciplines now use mangroves as a study system, from molecular biology to social science. The variety of research conducted in mangroves is exemplified by the Mangrove Macrobenthos & Management (MMM) conference series, the
Authors
Daniel A. Friess, Farid Dahdouh-Guebas, Behara Satyanarayana, Stefano Cannicci, Marco Vannini, Siew Chin Chua, Norman Duke, Ilka C. Feller, Zeehan Jaafer, L.P. Jayatissa, Nico Koedam, Ken Krauss, Shing Yip Lee, Jose Ernesto Mancera Pineda, Renison Ruwa, Erik S. Yando
Effects of huisache removal on rangeland evapotranspiration in Victoria County, south-central Texas, 2015–18
The U.S. Geological Survey and Desert Research Institute, in cooperation with the Natural Resources Conservation Service, Texas State Soil and Water Conservation Board, Victoria County Groundwater Conservation District, Victoria Soil and Water Conservation District, and the San Antonio River Authority, evaluated the hydrologic effects of Vachellia farnesiana var. farnesiana (huisache) removal on r
Authors
Richard N. Slattery, Darwin J. Ockerman, Matthew Bromley, Justin Huntington, John R. Banta
Hurricane sedimentation in a subtropical salt marsh-mangrove community is unaffected by vegetation type
Hurricanes periodically deliver sediment to coastal wetlands, such as those in the Mississippi River Delta Complex (MRDC), slowing elevation loss and improving resilience to sea-level rise. However, the amount of hurricane sediment deposited and retained in a wetland may vary depending on the dominant vegetation. In the subtropical climate of the MRDC, the black mangrove (Avicennia germinans) has
Authors
Karen L. McKee, Irving A. Mendelssohn, Mark W. Hester
Spatial distribution of heavy metals in the West Dongting Lake floodplain, China
The protection of Dongting Lake is important because it is an overwintering and migration route for many rare and endangered birds of East Asia and Australasia, but an assessment of heavy metal contamination in West Dongting Lake is lacking. A total of 75 sediment samples (five sites x three sediment depths x five repeats) were collected in West Dongting Lake in January 2017 to assess the spatial
Authors
Dong Peng, Ziyu Liu, Xinyue Su, Yaquin Xiao, Yuechen Wang, Beth Middleton