Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10386
Hydrologic connectivity and residence time affect the sediment trapping efficiency and dissolved oxygen concentrations of the Atchafalaya River Basin Hydrologic connectivity and residence time affect the sediment trapping efficiency and dissolved oxygen concentrations of the Atchafalaya River Basin
Little is known about water movement, volume, or residence time (RT), and how those characteristics affect sediment trapping efficiency (TE) and dissolved oxygen concentrations (DO) in the United States' largest remaining bottomland hardwood swamp, the Atchafalaya River Basin. To better understand these dynamics, this study used bathymetry, lidar, and stage records to determine volumes...
Authors
Daniel Kroes, Richard Day, Michael D. Kaller, Charles R. Demas, William E. Kelso, Tiffany Pasco, Raynie Harlan, Steven Roberts
Direct and indirect influences of macrophyte cover on abundance and growth of juvenile Atlantic salmon Direct and indirect influences of macrophyte cover on abundance and growth of juvenile Atlantic salmon
1. The relationships between macrophytes and the physical and biological characteristics of the environments that aquatic organisms inhabit are complex. Previous studies have shown that the macrophytes, Ranunculus (subgenus Batrachium), which are dominant in lowland chalk streams and widespread across Europe, can enhance juvenile Atlantic salmon abundance and growth to a greater degree...
Authors
Jessica E Marsh, J. Iwan Jones, Rasmus B. Lauridsen, James Grace, Pavel Kratina
Long-term apparent survival of a cold-stunned subpopulation of juveniles green turtles Long-term apparent survival of a cold-stunned subpopulation of juveniles green turtles
Understanding the effects of extreme weather on animal populations is fundamental to ecological and conservation sciences and species management. Climate change has resulted in both warm and cold temperature extremes, including an increased frequency of severe cold snaps at middle latitudes in North America. These unusually cold air masses cause rapid declines in nearshore ocean...
Authors
Robert Michael Mollenhauer, Margaret Lamont, Allen M. Foley
Coupling near-surface geomorphology with mangrove community diversity at the estuarine scale: A case study at Dongzhaigang Bay, China Coupling near-surface geomorphology with mangrove community diversity at the estuarine scale: A case study at Dongzhaigang Bay, China
Coastal wetlands are key features of the Earth’s surface and are characterized by a diverse array of coupled geomorphological and biological processes. However, the links between the distribution of biodiversity (e.g., species and structural diversity) and the formation of coastal geomorphology are not well understood on a landscape scale most useful to coastal zone managers. This study...
Authors
Guogui Chen, Wei Hong, Xuan Gu, Ken Krauss, Kaiyuan Zhao, Haifeng Fu, Luzhen Chen, Mao Wang, Wenqing Wang
Impacts of ocean-atmosphere teleconnection patterns on the south-central United States Impacts of ocean-atmosphere teleconnection patterns on the south-central United States
Recent research has linked the climate variability associated with ocean-atmosphere teleconnections to impacts rippling throughout environmental, economic, and social systems. This research reviews recent literature through 2021 in which we identify linkages among the major modes of climate variability, in the form of ocean-atmosphere teleconnections, and the impacts to temperature and
Authors
Robert V. Rohli, Gregg Snedden, Elinor R. Martin, Kristine L. DeLong
Characterization of vegetated and ponded wetlands with implications towards coastal wetland marsh collapse Characterization of vegetated and ponded wetlands with implications towards coastal wetland marsh collapse
Coastal wetlands provide numerous ecosystem services; yet these ecosystems are increasingly vulnerable to climate change stressors, especially excessive flooding from sea-level rise and storm events. This study highlights the important contribution of vegetation belowground biomass to marsh stability and identifies loss of vegetation as a critical driver of marsh collapse. We...
Authors
Jack A. Cadigan, Navid H. Jafari, Camille Stagg, Claudia Laurenzano, Brian D. Harris, Amina E. Meselhe, Jason Dugas, Brady Couvillion
Causality guided machine learning model on wetland CH4 emissions across global wetlands Causality guided machine learning model on wetland CH4 emissions across global wetlands
Wetland CH4 emissions are among the most uncertain components of the global CH4 budget. The complex nature of wetland CH4 processes makes it challenging to identify causal relationships for improving our understanding and predictability of CH4 emissions. In this study, we used the flux measurements of CH4 from eddy covariance towers (30 sites from 4 wetlands types: bog, fen, marsh, and...
Authors
Kunxiaojia Yuan, Qing Zhu, Fa Li, William J. Riley, Margaret Torn, Housen Chu, Gavin McNicol, Mingshu Chen, Sara Knox, Kyle B. Delwiche, Huayi Wu, Dennis Baldocchi, Hongxu Ma, Ankur R. Desai, Jiquan Chen, Torsten Sachs, Masahito Ueyama, Oliver Sonnentag, Manuel Helbig, Eeva-Stiina Tuittila, Gerald Jurasinski, Franziska Koebsch, David I. Campbell, Hans Peter Schmid, Annalea Lohila, Mathias Goeckede, Mats B. Nilsson, Thomas Friborg, Joachim Jansen, Donatella Zona, Eugenie S. Euskirchen, Eric Ward, Gil Bohrer, Zhenong Jin, Licheng Liu, Hiroki Iwata, Jordan P. Goodrich, Robert B. Jackson
A synthesis of coral reef research at Buck Island Reef National Monument and Salt River Bay National Historical Park and Ecological Preserve, St. Croix, U.S. Virgin Islands: 1961 to 2022 A synthesis of coral reef research at Buck Island Reef National Monument and Salt River Bay National Historical Park and Ecological Preserve, St. Croix, U.S. Virgin Islands: 1961 to 2022
This synthesis focuses on the history of research on coral reefs within two U.S. National Park Service units in St. Croix, U.S. Virgin Islands: Buck Island Reef National Monument (from 1961 to 2022) and Salt River Bay National Historical Park and Ecological Preserve (from 1980 to 2022). Buck Island Reef National Monument (BUIS) is off the north shore of the island of St. Croix, in the U...
Authors
Caroline Rogers
Upper Rio Grande Basin water-resource status and trends: Focus area study review and synthesis Upper Rio Grande Basin water-resource status and trends: Focus area study review and synthesis
The Upper Rio Grande Basin (URGB) is a critical international water resource under pressure from a myriad of climatic, ecological, infrastructural, water-use, and legal constraints. The objective of this study is to provide a comprehensive assessment of the spatial distribution and temporal trends of selected water-budget components (snow processes, evapotranspiration (ET), streamflow...
Authors
Kyle R. Douglas-Mankin, Christine Rumsey, Graham A. Sexstone, Tamara I. Ivahnenko, Natalie Houston, Shaleene Chavarria, Gabriel B. Senay, Linzy K. Foster, Jonathan V. Thomas, Allison K. Flickinger, Amy E. Galanter, C. David Moeser, Toby L. Welborn, Diana E. Pedraza, Patrick M. Lambert, Michael Scott Johnson
Environmental DNA metabarcoding read numbers and their variability predict species abundance, but weakly in non-dominant species Environmental DNA metabarcoding read numbers and their variability predict species abundance, but weakly in non-dominant species
Metabarcoding of environmental DNA (eDNA) provides more comprehensive, efficient, and non-invasive sampling of biological communities than conventional methods. However, limitations of metabarcoding include taxon-specific biases in amplification and sequencing that distort assessments of community composition. Further, hyper-abundant species may disproportionately affect community...
Authors
James Skelton, Allison R. Cauvin, Margaret Hunter
The influence of submerged coastal structures on nearshore flows and wave runup The influence of submerged coastal structures on nearshore flows and wave runup
Engineered and natural submerged coastal structures (e.g., submerged breakwaters and reefs) modify incident wave fields and thus can alter hydrodynamic processes adjacent to coastlines. Although submerged structures are generally assumed to promote beach protection by dissipating waves offshore and creating sheltered conditions in their lee, their interaction with waves can result in...
Authors
Renan F. da Silva, Jeff Hansen, Dirk P. Rijnsdorp, Ryan Lowe, Mark L. Buckley
Genome resequencing clarifies phylogeny and reveals patterns of selection in the toxicogenomics model Pimephales promelas Genome resequencing clarifies phylogeny and reveals patterns of selection in the toxicogenomics model Pimephales promelas
Background The fathead minnow (Pimephales promelas) is a model species for toxicological research. A high-quality genome reference sequence is available, and genomic methods are increasingly used in toxicological studies of the species. However, phylogenetic relationships within the genus remain incompletely known and little population-genomic data are available for fathead minnow...
Authors
Katy E. Klymus, Robert A. Hrabik, Nathan Thompson, Robert S. Cornman