Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10380
Gap-filling eddy covariance methane fluxes: Comparison of machine learning model predictions and uncertainties at FLUXNET-CH4 wetlands Gap-filling eddy covariance methane fluxes: Comparison of machine learning model predictions and uncertainties at FLUXNET-CH4 wetlands
Time series of wetland methane fluxes measured by eddy covariance require gap-filling to estimate daily, seasonal, and annual emissions. Gap-filling methane fluxes is challenging because of high variability and complex responses to multiple drivers. To date, there is no widely established gap-filling standard for wetland methane fluxes, with regards both to the best model algorithms and...
Authors
Jeremy Irvin, Sharon Zhou, Gavin McNicol, Fred Lu, Vincent Liu, Etienne Fluet-Chouinard, Zutao Ouyang, Sara Helen Knox, Antje Lucas-Moffat, Carlo Trotta, Dario Papale, Domenico Vitale, Ivan Mammarella, Pavel Alekseychik, Mika Aurela, Anand Avati, Dennis Baldocchi, Sheel Bansal, Gil Bohrer, David I. Campbell, Jiquan Chen, Housen Chu, Higo J. Dalmagro, Kyle B. Delwiche, Ankur R. Desai, Eugenie S. Euskirchen, Sarah Feron, Mathias Goeckede, Martin Heimann, Manuel Helbig, Carole Helfter, Kyle S. Hemes, Takashi Hirano, Hiroki Iwata, Gerald Jurasinski, Aram Kalhori, Andrew Kondrich, Derrick Y. F. Lai, Annalea Lohila, Avni Malholtra, Lutz Merbold, Bhaskar Mitra, Andrew Ng, Mats B. Nilsson, Asko Noormets, Matthias Peichl, A. Camilo Rey-Sanchez, Andrew D. Richardson, Benjamin R. K. Runkle, Karina V. R. Schafer, Oliver Sonnentag, Ellen Stuart-Haëntjens, Cove Sturtevant, Masahito Ueyama, Alex C. Valach, Rodrigo Vargas, George L. Vourlitis, Eric Ward, Guan Xhuan Wong, Donatella Zona, Ma. Carmelita R. Alberto, David P. Billesbach, Gerardo Celis, Han Dolman, Thomas Friborg, Kathrin Fuchs, Sebastien Gogo, Mangaliso J. Gondwe, Jordan P. Goodrich, Pia Gottschalk, Lukas Hortnagl, Adrien Jacotot, Franziska Koebsch, Kuno Kasak, Regine Maier, Timothy H. Morin, Eiko Nemitz, Walter C. Oechel, Patricia Y. Oikawa, Keisuke Ono, Torsten Sachs, Ayaka Sakabe, Edward A. Schuur, Robert Shortt, Ryan C. Sullivan, Daphne J. Szutu, Eeva-Stiina Tuittila, Andrej Varlagin, Joseph G. Verfaillie, Christian Wille, Lisamarie Windham-Myers, Benjamin Poulter, Robert B. Jackson
Genetic structure and diversity of the mustard hill coral Porites astreoides along the Florida Keys reef tract Genetic structure and diversity of the mustard hill coral Porites astreoides along the Florida Keys reef tract
Increases in local and global stressors have led to major declines in coral populations throughout the western Atlantic. While abundances of other species have declined, however, the relative abundance of the mustard hill coral, Porites astreoides, has increased. Porites astreoides is relatively resilient to some stressors, and because of its mixed reproductive strategies, its...
Authors
Dominique N. Gallery, Michelle L. Green, Ilsa B. Kuffner, Elizabeth A. Lenz, Lauren T. Toth
Occurrence and distribution of mercury in streams and reservoirs in the Triangle Area of North Carolina, July 2007–June 2009 Occurrence and distribution of mercury in streams and reservoirs in the Triangle Area of North Carolina, July 2007–June 2009
During the time period 2001–2006, the U.S. Geological Survey reported mercury-concentration measurements that exceeded the North Carolina water-quality criterion (NCWQC) of 0.012 microgram per liter for total recoverable mercury in streams and reservoirs across the Triangle Area of North Carolina. Mercury data were sparse, however, generally consisting of only one or two water samples...
Authors
Anna M. McKee, Sharon Fitzgerald, Mary J. Giorgino
Hydraulic modeling at selected dam-removal and culvert-retrofit sites in the northeastern United States Hydraulic modeling at selected dam-removal and culvert-retrofit sites in the northeastern United States
Aquatic connectivity projects, such as removing dams and modifying culverts, have substantial benefits. The restoration of natural flow conditions improves water quality, sediment transport, aquatic and riparian habitat, and fish passage. These projects can also decrease hazards faced by communities by lowering water-surface elevations of flood waters and by removing the risk of dam...
Authors
Scott A. Olson, Caelan E. Simeone
Potential effect of low-rise, downcast artificial lights on nocturnally migrating land birds Potential effect of low-rise, downcast artificial lights on nocturnally migrating land birds
Artificial light at night (ALAN) on tall or upward-pointed lighting installations affects the flight behavior of night-migrating birds. We hypothesized that common low-rise lights pointing downward also affect the movement of nocturnal migrants. We predicted that birds in flight will react close to low-rise lights, and be attracted and grounded near light sources, with a stronger effect...
Authors
Sergio A. Cabrera-Cruz, Ronald P. Larkin, Maren E. Gimpel, James G. Gruber, Theodore J. Zenzal, Jeffrey J. Buler
Genetic diversity is considered important but interpreted narrowly in country reports to the Convention on Biological Diversity: Current actions and indicators are insufficient Genetic diversity is considered important but interpreted narrowly in country reports to the Convention on Biological Diversity: Current actions and indicators are insufficient
International agreements such as the Convention on Biological Diversity (CBD) have committed to conserve, and sustainably and equitably use, biodiversity. The CBD is a vital instrument for global conservation because it guides 195 countries and the European Union in setting priorities and allocating resources, and requires regular reporting on progress. However, the CBD and similar...
Authors
Sean M. Hoban, Catriona D. Campbell, Jessica M. da Silva, Robert Ekblom, W. Chris Funk, Brittany A. Garner, Jose A. Godoy, Francine Kershaw, Anna J. MacDonald, Joachim Mergeay, Melissa Minter, David O'Brien, Ivan Paz Vinas, Sarah K. Pearson, Silvia Perez-Espona, Kevin M. Potter, Isa-Rita M. Russo, Gernot Segelbacher, Cristiano Vernesi, Margaret Hunter
The distribution and structure of mangroves (Avicennia germinans and Rhizophora mangle) near a rapidly changing range limit in the northeastern Gulf of Mexico The distribution and structure of mangroves (Avicennia germinans and Rhizophora mangle) near a rapidly changing range limit in the northeastern Gulf of Mexico
In coastal wetlands, one of the most striking examples of climate change is the poleward range expansion of mangrove forests in response to warming winters. In North America, the Cedar Key region has often been considered the range limit for mangroves along the western coast of Florida (USA). However, within the past several decades, robust stands of Avicennia germinans and Rhizophora...
Authors
Caitlin M. Snyder, Laura Feher, Michael Osland, Christopher J. Miller, A. Randall Hughes, Karen L Cummins
Knowledge synthesis of Cape Sable Seaside Sparrow science Knowledge synthesis of Cape Sable Seaside Sparrow science
This report represents a literature review of science conducted on the Cape Sable Seaside Sparrow (Ammospiza maritima mirabilis, hereafter “CSSS” or “spar-row”). This information can be used as a foundation for the upcoming Species Status Assessment and for updating the CSSS Recovery Plan. This report focuses on areas of interest relative to CSSS management such as habitat, hydrology...
Authors
Allison Benscoter, Saira M. Haider, Kelly G. Guilbeau, Stephanie Romanach
Restoration of mangrove forest Restoration of mangrove forest
Mangrove forests occur worldwide along tropical coasts in inundated soils where primary production and anaerobic conditions contribute to the building of soil organic matter (Also see Mangroves Hot-spot, Volume 2). Note that peat may accumulate in certain coastal mangrove (Middleton and McKee, 2001). The actual amount of soil organic matter stored in these wetlands depends on the balance...
Authors
Beth A. Middleton, Eric Ward
Restoration of organic coastal and inland freshwater forests Restoration of organic coastal and inland freshwater forests
Peatland forests occur worldwide in inundated soils where primary production and anaerobic conditions contribute to the building of soil organic matter (Günther et al., 2020). Greenhouse gas emissions (GHG) can be substantial from drained freshwater forests with organic soils. Therefore, rewetting peat via hydrologic restoration (see factsheet n°12 on Peatland restoration, this volume)...
Authors
Beth Middleton, Eric Ward, Lorenzo Menichetti
Effects of chronic and acute stressors on transplanted black mangrove (Avicennia germinans) seedlings along an eroding Louisiana shoreline Effects of chronic and acute stressors on transplanted black mangrove (Avicennia germinans) seedlings along an eroding Louisiana shoreline
Coastal wetland restoration can be used to offset past wetland losses and/or reduce future losses due to land-use changes, rising sea levels, and accelerating climate change. However, there is a need for information regarding the restoration-relevant performance of foundation species like mangrove and marsh plants, including their responses to acute and chronic stressors that can affect
Authors
Aaron Macy, Michael Osland, Julia A. Cherry, Just Cebrian
Estimated water withdrawals and use in Puerto Rico, 2015 Estimated water withdrawals and use in Puerto Rico, 2015
Water withdrawals and use in Puerto Rico for 2015 were estimated at 2,372 million gallons per day (Mgal/d), which was 21 percent less than withdrawals and use for 2010. The 2015 total water withdrawal and use estimates were the lowest since 1990 and coincided with a substantial decline of 25 percent in saline-water withdrawals for thermoelectric-power cooling processes from 2010 to 2015
Authors
Wanda L. Molina-Rivera, Michelle M. Irizarry-Ortiz