Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10420
Do geographically isolated wetlands influence landscape functions? Do geographically isolated wetlands influence landscape functions?
Geographically isolated wetlands (GIWs), those surrounded by uplands, exchange materials, energy, and organisms with other elements in hydrological and habitat networks, contributing to landscape functions, such as flow generation, nutrient and sediment retention, and biodiversity support. GIWs constitute most of the wetlands in many North American landscapes, provide a...
Authors
Matthew J. Cohen, Irena F. Creed, Laurie C. Alexander, Nandita Basu, Aram J.K. Calhoun, Christopher Craft, Ellen D’Amico, Edward S. DeKeyser, Laurie Fowler, Heather E. Golden, James W. Jawitz, Peter Kalla, L. Katherine Kirkman, Charles R. Lane, Megan Lang, Scott G. Leibowitz, David Bruce Lewis, John Marton, Daniel L. McLaughlin, David M. Mushet, Hadas Raanan-Kiperwas, Mark C. Rains, Lora Smith, Susan C. Walls
Back-Island and Open-Ocean Shorelines, and Sand Areas of the Undeveloped Areas of New Jersey Barrier Islands, March 9, 1991, to July 30, 2013 Back-Island and Open-Ocean Shorelines, and Sand Areas of the Undeveloped Areas of New Jersey Barrier Islands, March 9, 1991, to July 30, 2013
Assessing the physical change to shorelines and wetlands is critical for determining the resiliency of wetland systems that protect adjacent habitat and communities. The wetland and back-barrier shorelines of the New Jersey barrier islands were changed by wave action and storm surge from Hurricane Sandy in 2012. The U.S. Geological Survey Coastal and Marine Geology Program is assessing...
Authors
Kristy K. Guy
Quality of surface water in Missouri, water year 2014 Quality of surface water in Missouri, water year 2014
The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, designed and operates a series of monitoring stations on streams and springs throughout Missouri known as the Ambient Water-Quality Monitoring Network. During the 2014 water year (October 1, 2013, through September 30, 2014), data were collected at 74 stations—72 Ambient Water-Quality Monitoring...
Authors
Miya N. Barr
Land-cover types, shoreline positions, and sand extents derived From Landsat satellite imagery, Assateague Island to Metompkin Island, Maryland and Virginia, 1984 to 2014 Land-cover types, shoreline positions, and sand extents derived From Landsat satellite imagery, Assateague Island to Metompkin Island, Maryland and Virginia, 1984 to 2014
The U.S. Geological Survey has a long history of responding to and documenting the impacts of storms along the Nation’s coasts and incorporating these data into storm impact and coastal change vulnerability assessments. These studies, however, have traditionally focused on sandy shorelines and sandy barrier-island systems, without consideration of impacts to coastal wetlands. The goal of...
Authors
Julie Bernier, Steven H. Douglas, Joseph F. Terrano, John A. Barras, Nathaniel G. Plant, Christopher G. Smith
Water use in Georgia by county for 2010 and water-use trends, 1985–2010 Water use in Georgia by county for 2010 and water-use trends, 1985–2010
Water use and water withdrawals and returns in 2010 are estimated for each major river basin, principal aquifer, water-planning region, and county in Georgia using data obtained from various Federal and State agencies and local sources. Offstream water use in 2010 is estimated for the categories of public supply, domestic, commercial, industrial, mining, irrigation, livestock...
Authors
Stephen J. Lawrence
Acute and chronic toxicity of sodium sulfate to four freshwater organisms in water-only exposures Acute and chronic toxicity of sodium sulfate to four freshwater organisms in water-only exposures
The acute and chronic toxicity of sulfate (tested as sodium sulfate) was determined in diluted well water (hardness of 100 mg/L and pH 8.2) with a cladoceran (Ceriodaphnia dubia; 2-d and 7-d exposures), a midge (Chironomus dilutus; 4-d and 41-d exposures), a unionid mussel (pink mucket, Lampsilis abrupta; 4-d and 28-d exposures), and a fish (fathead minnow, Pimephales promelas; 4-d and...
Authors
Ning Wang, Rebecca A. Consbrock, Christopher G. Ingersoll, Douglas K. Hardesty, William G. Brumbaugh, Edward J. Hammer, Candice R. Bauer, David R. Mount
Vectors of invasions in freshwater invertebrates and fishes Vectors of invasions in freshwater invertebrates and fishes
Without human assistance, the terrestrial environment and oceans represent barriers to the dispersal of freshwater aquatic organisms. The ability to overcome such barriers depends on the existence of anthropogenic vectors that can transport live organisms to new areas, and the species’ biology to survive the transportation and transplantation into the new environment (Johnson et al...
Authors
Pamela L. Fuller
Simulation of the effects of different inflows on hydrologic conditions in Lake Houston with a three-dimensional hydrodynamic model, Houston, Texas, 2009–10 Simulation of the effects of different inflows on hydrologic conditions in Lake Houston with a three-dimensional hydrodynamic model, Houston, Texas, 2009–10
Lake Houston, an important water resource for the Houston, Texas, area, receives inflows from seven major tributaries that compose the San Jacinto River Basin upstream from the reservoir. The effects of different inflows from the watersheds drained by these tributaries on the residence time of water in Lake Houston and closely associated physical and chemical properties including lake...
Authors
Samuel H. Rendon, Michael T. Lee
What role do hurricanes play in sediment delivery to subsiding river deltas? What role do hurricanes play in sediment delivery to subsiding river deltas?
The Mississippi River Delta (MRD) has undergone tremendous land loss over the past century due to natural and anthropogenic influences, a fate shared by many river deltas globally. A globally unprecedented effort to restore and sustain the remaining subaerial portions of the delta is now underway, an endeavor that is expected to cost $50–100B over the next 50 yr. Success of this effort...
Authors
James E. Smith, Samuel J. Bentley, Gregg Snedden, Crawford White
Species and tissue type regulate long-term decomposition of brackish marsh plants grown under elevated CO2 conditions Species and tissue type regulate long-term decomposition of brackish marsh plants grown under elevated CO2 conditions
Organic matter accumulation, the net effect of plant production and decomposition, contributes to vertical soil accretion in coastal wetlands, thereby playing a key role in whether they keep pace with sea-level rise. Any factor that affects decomposition may affect wetland accretion, including atmospheric CO2 concentrations. Higher CO2 can influence decomposition rates by altering plant...
Authors
Joshua A Jones, Julia A Cherry, Karen L. McKee
Occupancy estimation for rare species using a spatially-adaptive sampling design Occupancy estimation for rare species using a spatially-adaptive sampling design
Summary 1. Spatially clustered populations create unique challenges for conservation monitoring programmes. Advances in methodology typically are focused on either the design or the modelling stage of the study but do not involve integration of both. 2. We integrate adaptive cluster sampling and spatial occupancy modelling by developing two models to handle the dependence induced by...
Authors
Krishna Pacifici, Brian J. Reich, Robert Dorazio, Michael J. Conroy
Coastwide Reference Monitoring System (CRMS) Vegetation Volume Index: An assessment tool for marsh habitat focused on the three-dimensional structure at CRMS vegetation monitoring stations Coastwide Reference Monitoring System (CRMS) Vegetation Volume Index: An assessment tool for marsh habitat focused on the three-dimensional structure at CRMS vegetation monitoring stations
A Vegetation Volume (VV) variable and Vegetation Volume Index (VVI) have been developed for the Coastwide Reference Monitoring System (CRMS). The VV is a measure of the amount of three-dimensional vegetative structure present at each CRMS site and is based on vegetation data collected annually. The VV uses 10 stations per CRMS site to quantify four vegetation layers: carpet, herbaceous...
Authors
William B. Wood, Jenneke M. Visser, Sarai C. Piazza, Leigh A. Sharp, Laura C. Hundy, Tommy E. McGinnis