Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9967
Mortality and cholinesterase inhibition in butterflies following aerial naled applications for mosquito control on the National Key Deer Refuge
Natural resource managers are concerned about the impacts of aerial ultra-low volume spray (ULV) of insecticides for mosquito control (i.e., mosquito adulticides) and seek science-driven management recommendations that reduce risk but allow vector control for nearby human populations. Managers at the National Key Deer Refuge (Florida Keys, FL) are concerned for ULV effects upon conservation effort
Authors
Timothy Bargar, Chad Anderson, Anthony Sowers
2023 Coastal master plan: Model improvement plan, ICM-wetlands, vegetation, and soil
As part of the model improvement effort for the 2023 Coastal Master Plan, the wetland processes captured by the morphology and vegetation models used during previous master plans were reevaluated to assess how Integrated Compartment Model (ICM) subroutines could be improved. This process considered technical reviews, comments, and suggested improvements provided by model developers, advisory group
Authors
Melissa M. Baustian, Denise Reed, Jenneke Visser, Scott M. Duke-Sylvester, Gregg Snedden, Hongqing Wang, Kristin DeMarco, Madeline R. Foster-Martinez, Leigh Anne Sharp, Tommy E. McGinnis, Elizabeth Jarrell
Frequency of extreme freeze events controls the distribution and structure of black mangroves (Avicennia germinans) near their northern range limit in coastal Louisiana
AimClimate change is expected to result in the tropicalization of coastal wetlands in the northern Gulf of Mexico, as warming winters allow tropical mangrove forests to expand their distribution poleward at the expense of temperate salt marshes. Data limitations near mangrove range limits have hindered understanding of the effects of winter temperature extremes on mangrove distribution and structu
Authors
Michael Osland, Richard Day, Thomas C. Michot
Near-term spatial hydrologic forecasting in Everglades, USA for landscape planning and ecological forecasting
Operational ecological forecasting is an emerging field that leverages ecological models in a new, cross-disciplinary way – using a real-time or nearly real-time climate forecast to project near-term ecosystem states. These applications give decision-makers lead time to anticipate and manage state changes that degrade ecosystem functions or directly impact humans. The Everglades Forecasting model
Authors
Leonard G. Pearlstine, James M. Beerens, Gregg Reynolds, Saira Haider, Mark McKelvy, Kevin Suir, Stephanie Romanach, Jennifer H. Nestler
Reduction in drinking water arsenic exposure and health risk through arsenic treatment among private well households in Maine and New Jersey, USA
Over 2 million people in the United States (U.S.) drink water from private wells that contain arsenic (As) exceeding the U.S. Environmental Protection Agency (USEPA) Maximum Contaminant Level (MCL) of 10 micrograms per liter (μg/L). While there are a number of commercially available treatment technologies for removing As from drinking water, it is up to the private well households to decide whethe
Authors
Qiang Yang, Sara V. Flanagan, Steven Chillrud, James Ross, Wenke Zeng, Charles W. Culbertson, Steve Spayd, Lorraine C. Backer, Andrew E. Smith, Yan Zheng
Accurate bathymetric maps from underwater digital imagery without ground control
Structure-from-Motion (SfM) photogrammetry can be used with digital underwater photographs to generate high-resolution bathymetry and orthomosaics with millimeter-to-centimeter scale resolution at relatively low cost. Although these products are useful for assessing species diversity and health, they have additional utility for quantifying benthic community structure, such as coral growth and fine
Authors
Gerry Hatcher, Jonathan Warrick, Andrew C. Ritchie, Evan T. Dailey, David G. Zawada, Christine J. Kranenburg, Kimberly K. Yates
Small gradients in salinity have large effects on stand water use in freshwater wetland forests
Salinity intrusion is responsible for changes to freshwater wetland watersheds globally, but little is known about how wetland water budgets might be influenced by small increments in salinity. We studied a forested wetland in South Carolina, USA, and installed sap flow probes on 72 trees/shrubs along a salinity gradient. Species investigated included the trees baldcypress (Taxodium distichum [L.]
Authors
Jamie A. Duberstein, Ken Krauss, M.J. Baldwin, Scott T. Allen, William H. Conner, John S. Salter, Michael Miloshis
Transcriptome analysis of testis reveals the effects of developmental exposure to bisphenol a or 17α-ethinylestradiol in medaka (Oryzias latipes)
Endocrine disrupting chemicals (EDCs) can induce abnormalities in organisms via alteration of molecular pathways and subsequent disruption of endocrine functions. Bisphenol A (BPA) and 17α-ethinylestradiol (EE2) are ubiquitous EDCs in the environment. Many aquatic organisms, including fish, are often exposed to varying concentrations of BPA and EE2 throughout their lifespan. Both BPA and EE2 can a
Authors
Ramji K. Bhandari, Xuegeng Wang, Frederick S. vom Saal, Donald E. Tillitt
Divergent biotic and abiotic filtering of root endosphere and rhizosphere soil fungal communities along ecological gradients
Plant roots assemble two distinct microbial compartments: the rhizosphere (microbes in soil surrounding roots) and the endosphere (microbes within roots). Our knowledge of fungal community assembly in these compartments is limited, especially in wetlands. We tested the hypothesis that biotic factors would have direct effects on rhizosphere and endosphere assembly, while abiotic factors would have
Authors
Candice Y Lumibao, Elizabeth Kimbrough, Richard Day, William H. Conner, Ken Krauss, Sunshine A Van Bael
Hurricane Sandy effects on coastal marsh elevation change
High-magnitude storm events such as Hurricane Sandy are powerful agents of geomorphic change in coastal marshes, potentially altering their surface elevation trajectories. But how do a storm’s impacts vary across a large region spanning a variety of wetland settings and storm exposures and intensities. We determined the short-term impacts of Hurricane Sandy at 223 surface elevation table–marker ho
Authors
Alice G. Yeates, James Grace, Jennifer H. Olker, Glenn R. Guntenspergen, Donald Cahoon, Susan C. Adamowicz, Shimon C. Anisfeld, Nels Barrett, Alice Benzecry, Linda K. Blum, Rober T Christian, Joseph Grzyb, Ellen Kracauer Hartig, Kelly Hines Leo, Scott Lerberg, James C. Lynch, Nicole Maher, J Patrick Megonigal, William G. Reay, Drexel Siok, Adam Starke, Vincent Turner, Scott Warren
Structural impacts, carbon losses, and regeneration in mangrove wetlands after two hurricanes on St. John, U.S. Virgin Islands
Hurricanes Irma and Maria ravaged the mangroves of St. John, U.S. Virgin Islands, in 2017. Basal area losses were large (63–100%) and storm losses of carbon associated with aboveground biomass amounted to 11.9–43.5 Mg C/ha. Carbon biomass of dead standing trees increased 8.1–18.3 Mg C/ha among sites, and carbon in coarse woody debris on the forest floor increased 1.9–18.2 Mg C/ha, with effects var
Authors
Ken Krauss, Andrew From, Caroline Rogers, Kevin R.T. Whelan, Kristen W. Grimes, Robert C. Dobbs, Thomas Kelley
Comparing trends in modeled and observed streamflows at minimally altered basins in the United States
We compared modeled and observed streamflow trends from 1984–2016 using five statistical transfer models and one deterministic, distributed-parameter, process-based model, for 26 flow metrics at 502 basins in the United States that are minimally influenced by development. We also looked at a measure of overall model fit and average bias. A higher percentage of basins, for all models, had relativel
Authors
Glenn A. Hodgkins, Robert W. Dudley, Amy M. Russell, Jacob H. LaFontaine