Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10386
Identifying mangrove-coral habitats in the Florida Keys Identifying mangrove-coral habitats in the Florida Keys
Coral reefs are degrading due to many synergistic stressors. Recently there have been a number of global reports of corals occupying mangrove habitats that provide a supportive environment or refugium for corals, sheltering them by reducing stressors such as oxidative light stress and low pH. This study used satellite imagery and manual ground-truthing surveys to search for mangrove...
Authors
Christina A. Kellogg, Ryan P. Moyer, Mary Jacobsen, Kimberly K. Yates
Pesticides and their degradates in groundwater reflect past use and current management strategies, Long Island, New York, USA Pesticides and their degradates in groundwater reflect past use and current management strategies, Long Island, New York, USA
Long Island, New York, has a mix of urban/suburban to agricultural/horticultural land use and nearly 3 million residents that rely on a sole-source aquifer for drinking water. The analysis of shallow groundwater (
Authors
Irene Fisher, Patrick J. Phillips, Banu Bayraktar, Shirley Chen, Brendan A. McCarthy, Mark W. Sandstrom
Status of the major aquaculture carps of China in the Laurentian Great Lakes Basin Status of the major aquaculture carps of China in the Laurentian Great Lakes Basin
There is concern of economic and environmental damage occuring if any of the four major aquacultured carp species of China, black carp Mylopharyngodon piceus, bighead carp Hypophthalmichthys nobilis, silver carp H. molitrix, or grass carp Ctenopharyngodon idella, were to establish in the Laurentian Great Lakes. All four are reproducing in the Mississippi River Basin. We review the status...
Authors
Duane Chapman, Amy J. Benson, Holly S. Embke, Nicole R. King, Patrick Kocovsky, Teresa D. Lewis, Nicholas E. Mandrak
Mangrove blue carbon in the face of deforestation, climate change, and restoration Mangrove blue carbon in the face of deforestation, climate change, and restoration
Coastal wetlands have disproportionately high carbon densities, known as blue carbon, compared to most terrestrial ecosystems. Mangroves and their blue carbon stocks are at risk globally from land‐use and land‐cover change (LULCC) activities such as aquaculture, alongside biophysical disturbances such as sea‐level rise and cyclones. Global estimates of carbon emissions from mangrove loss...
Authors
Daniel A. Friess, Ken Krauss, Pierre Taillardat, Maria Fernanda Adame, Erik S. Yando, Clint Cameron, Sigit D. Sasmito, Meriadec Sillanpaa
Cliff Feature Delineation Tool and Baseline Builder version 1.0 user guide Cliff Feature Delineation Tool and Baseline Builder version 1.0 user guide
Coastal cliffs constitute 80 percent of the world’s coastline, with seacliffs fronting a large proportion of the U.S. West Coast shoreline, particularly in California. Erosion of coastal cliffs can threaten infrastructure and human life, yet the spatial and temporal scope of cliff studies have been limited by cumbersome traditional methods that rely on the manual interpretation of...
Authors
Alexander C. Seymour, Cheryl J. Hapke, Jonathan A. Warrick
Trait‐based variation in host contribution to pathogen transmission across species and resource supplies Trait‐based variation in host contribution to pathogen transmission across species and resource supplies
Two key knowledge gaps currently limit the development of more predictive and general models of pathogen transmission: (1) the physiological basis of heterogeneity in host contribution to pathogen transmission (reservoir potential) remains poorly understood, and (2) a general means of integrating the ecological dynamics of host communities has yet to emerge. If the traits responsible for
Authors
Miranda E Welsh, James P. Cronin, Charles E. Mitchell
Elemental and radionuclide exposures and uptakes by small rodents, invertebrates, and vegetation at active and post-production uranium mines in the Grand Canyon watershed Elemental and radionuclide exposures and uptakes by small rodents, invertebrates, and vegetation at active and post-production uranium mines in the Grand Canyon watershed
The effects of breccia pipe uranium mining in the Grand Canyon watershed (Arizona) on ecological and cultural resources are largely unknown. We characterized the exposure of biota to uranium and co-occurring ore body elements during active ore production and at a site where ore production had recently concluded. Our results indicate that biota have taken up uranium and other elements (e...
Authors
Danielle M. Cleveland, Jo Ellen Hinck, Julia S. Lankton
Status of groundwater-level altitudes and long-term groundwater-level changes in the Chicot, Evangeline, and Jasper aquifers, Houston-Galveston region, Texas, 2020 Status of groundwater-level altitudes and long-term groundwater-level changes in the Chicot, Evangeline, and Jasper aquifers, Houston-Galveston region, Texas, 2020
Since the early 1900s, most of the groundwater withdrawals in the Houston-Galveston region, Texas, have been from the three primary aquifers that compose the Gulf Coast aquifer system—the Chicot, Evangeline, and Jasper aquifers. Withdrawals from these aquifers are used for municipal supply, commercial and industrial use, and irrigation. This report, prepared by the U.S. Geological Survey...
Authors
Christopher L. Braun, Jason K. Ramage
Moving from decision to action in conservation science Moving from decision to action in conservation science
Biodiversity loss is a major threat to the integrity of ecosystems and is projected to worsen, yet the path to successful conservation remains elusive. Decision support frameworks (DSFs) are increasingly applied by resource managers to navigate the complexity, uncertainty, and differing socio-ecological objectives inherent to conservation problems. Most published conservation research...
Authors
Alexander Wright, Riley F Bernard, Brittany A. Mosher, Katherine O'Donnell, Taylor Braunagel, Graziella V. DiRenzo, Jillian Elizabeth Fleming, Charles Shafer, Adrianne B. Brand, Elise F. Zipkin, Evan H. Campbell Grant
Biological effects of hydrocarbon degradation intermediates: Is the total petroleum hydrocarbon analytical method adequate for risk assessment? Biological effects of hydrocarbon degradation intermediates: Is the total petroleum hydrocarbon analytical method adequate for risk assessment?
In crude oil contaminant plumes, the dissolved organic carbon (DOC) is mainly hydrocarbon degradation intermediates only partly quantified by the diesel range total petroleum hydrocarbon (TPHd) method. To understand potential biological effects of degradation intermediates, we tested three fractions of DOC: (1) solid-phase extract (HLB); (2) dichloromethane (DCM-total) extract used in...
Authors
Barbara A. Bekins, Jennifer Brennan, Donald E. Tillitt, Isabelle M. Cozzarelli, Jennifer M. Illig, Dalma Martinovich-Weigelt
Aboveground and belowground vegetation biomass and nutrients Aboveground and belowground vegetation biomass and nutrients
Wetland biomass production, decomposition, and storage of organic matter govern estuarine energy transfer, in addition to determining the physical sustainability of marshes exposed to sea-level rise and subsidence. Peak standing biomass represents an indicator of wetland production or productivity but does not account for turnover (production and decomposition) of different pools of...
Authors
Todd M. Folse, Thomas E. McGinnis, Leigh A. Sharp, Jonathan L. West, Melissa K. Hymel, John P. Troutman, Dona Weifenbach, William M. Boshart, Laurie B. Rodrigue, Danielle C. Richardi, W. Bernard Wood, C. Mike Miller, Elizabeth M. Robinson, Angelina M. Freeman, Camille Stagg, Brady Couvillion, Holly Beck
Imagery Imagery
As part of CRMS, Digital Orthophoto Quarter Quadrangles (DOQQs) for the coastal region of Louisiana are created for years when coastwide land-water classifications are required. A DOQQ is a raster image in which displacement in the image caused by sensor orientation and terrain relief has been corrected. These images combine the image characteristics of a photo with the geometric...
Authors
Todd M. Folse, Thomas E. McGinnis, Leigh A. Sharp, Jonathan L. West, Melissa K. Hymel, John P. Troutman, Dona Weifenbach, William M. Boshart, Laurie B. Rodrigue, Danielle C. Richardi, W. Bernard Wood, C. Mike Miller, Elizabeth M. Robinson, Angelina M. Freeman, Camille Stagg, Brady Couvillion, Holly Beck