Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10566
Evaluation of modeled bacteria loads along an impaired stream reach receiving discharge from a municipal separate storm sewer system in Independence, Mo. Evaluation of modeled bacteria loads along an impaired stream reach receiving discharge from a municipal separate storm sewer system in Independence, Mo.
The Little Blue River in Jackson County, Missouri, was listed as impaired in 2012 due to Escherichia coli (E. coli) from urban runoff and storm sewers. A study was initiated to characterize E. coli concentrations and loads to aid in the development of a total maximum daily load implementation plan. Longitudinal sampling along the stream revealed spatial and temporal variability in E...
Authors
Allison Flickinger, Eric D. Christensen
Methods for estimating selected low-flow frequency statistics and harmonic mean flows for streams in Iowa Methods for estimating selected low-flow frequency statistics and harmonic mean flows for streams in Iowa
A statewide study was conducted to develop regression equations for estimating six selected low-flow frequency statistics and harmonic mean flows for ungaged stream sites in Iowa. The estimation equations developed for the six low-flow frequency statistics include: the annual 1-, 7-, and 30-day mean low flows for a recurrence interval of 10 years, the annual 30-day mean low flow for a...
Authors
David A. Eash, Kimberlee K. Barnes
Lithobates sylvaticus (wood frog) Lithobates sylvaticus (wood frog)
A single specimen found southwest of Hattiesburg in Timberton (31.270391oN, 89.327675oW; WGS 84). 23 July 2015. Gary, Kat, and Ron Lukens. Verifi ed by Kenneth Krysko, Florida Museum of Natural History (UF-Herpetology 176455). This species has never been recorded from the state of Mississippi before (Dodd 2013. Frogs of the United States and Canada – Volume 2. John Hopkins University...
Authors
Pam Fuller
Improving our understanding of hydraulic-electrical relations: A case study of the surficial aquifer in Emirate Abu Dhabi Improving our understanding of hydraulic-electrical relations: A case study of the surficial aquifer in Emirate Abu Dhabi
Transmissivity is a bulk hydraulic property that can be correlated with bulk electrical properties of an aquifer. In aquifers that are electrically-resistive relative to adjacent layers in a horizontally stratified sequence, transmissivity has been shown to correlate with bulk transverse resistance. Conversely, in aquifers that are electrically-conductive relative to adjacent layers
Authors
Scott Ikard, Wade H. Kress
Applying downscaled Global Climate Model data to a groundwater model of the Suwannee River Basin, Florida, USA Applying downscaled Global Climate Model data to a groundwater model of the Suwannee River Basin, Florida, USA
The application of Global Climate Model (GCM) output to a hydrologic model allows for comparisons between simulated recent and future conditions and provides insight into the dynamics of hydrology as it may be affected by climate change. A previously developed numerical model of the Suwannee River Basin, Florida, USA, was modified and calibrated to represent transient conditions. A...
Authors
Eric D. Swain, J. Hal Davis
Are we working towards global research priorities for management and conservation of sea turtles? Are we working towards global research priorities for management and conservation of sea turtles?
In 2010, an international group of 35 sea turtle researchers refined an initial list of more than 200 research questions into 20 metaquestions that were considered key for management and conservation of sea turtles. These were classified under 5 categories: reproductive biology, biogeography, population ecology, threats and conservation strategies. To obtain a picture of how research is...
Authors
A.F. Rees, J. Alfaro-Shigueto, P.C.R. Barata, K.A. Bjorndal, A.B. Bolten, J. Bourjea, A.C. Broderick, L.M. Campbell, L. Cardona, C. Carreras, P. Casale, S.A. Ceriani, P.H. Dutton, T. Eguchi, A. Formia, M.M.P.B. Fuentes, W.J. Fuller, M. Girondot, M.H. Godfrey, M. Hamann, Kristen M. Hart, G.C. Hays, S. Hochscheid, Y. Kaska, M.P. Jensen, J.C. Mangel, J.A. Mortimer, E. Naro-Maciel, C.K.Y. Ng, W.J. Nichols, A.D. Phillott, R.D. Reina, O. Revuelta, G. Schofield, J.A. Seminoff, K. Shanker, J. Tomas, van de Merwe, K.S. Van Houtan, H.B. Vander Zanden, B.P. Wallace, K.R. Wedemeyer-Strombel, Thierry M. Work, B.J. Godley
The practice of prediction: What can ecologists learn from applied, ecology-related fields? The practice of prediction: What can ecologists learn from applied, ecology-related fields?
The pervasive influence of human induced global environmental change affects biodiversity across the globe, and there is great uncertainty as to how the biosphere will react on short and longer time scales. To adapt to what the future holds and to manage the impacts of global change, scientists need to predict the expected effects with some confidence and communicate these predictions to...
Authors
Frank Pennekamp, Matthew Adamson, Owen L Petchey, Jean-Christophe Poggiale, Maira Aguiar, Bob W. Kooi, Daniel B. Botkin, Donald L. DeAngelis
Overcoming challenges to the recovery of declining amphibian populations in the United States Overcoming challenges to the recovery of declining amphibian populations in the United States
The US Endangered Species Act of 1973 (ESA) affords many potential benefits to species threatened with extinction. However, most at-risk amphibians—one of the most imperiled vertebrate groups—remain unlisted under the provisions of the ESA, and many impediments to recovery exist for those species that have been listed. Of the 35 US amphibian species and distinct population segments (...
Authors
Susan C. Walls, Lianne C. Ball, William J. Barichivich, Kenneth Dodd, Kevin M Enge, Thomas A. Gorman, Katherine M. O’Donnell, John G Palis, Raymond D. Semlitsch
Assessment of dreissenid biodeposits as a potential food resource for invasive Asian carp Assessment of dreissenid biodeposits as a potential food resource for invasive Asian carp
Silver carp (Hypophthalmichthys molitrix) and bighead carp (H. nobilis) are poised to invade the Laurentian Great Lakes. Zebra mussels (Dreissena polymorpha) and quagga mussels (D. rostriformis bugensis) have shifted nutrient pathways towards the benthos, partly through deposition of feces and rejected food particles called biodeposits. When biodeposit material was fed to bighead and...
Authors
Karl R. Anderson, Duane Chapman, Cari-Ann Hayer
Sources of groundwater and characteristics of surface-water recharge at Bell, White, and Suwannee Springs, Florida, 2012–13 Sources of groundwater and characteristics of surface-water recharge at Bell, White, and Suwannee Springs, Florida, 2012–13
Discharge from springs in Florida is sourced from aquifers, such as the Upper Floridan aquifer, which is overlain by an upper confining unit that locally can have properties of an aquifer. Water levels in aquifers are affected by several factors, such as precipitation, recharge, and groundwater withdrawals, which in turn can affect discharge from springs. Therefore, identifying...
Authors
John F. Stamm, W. Scott McBride
Concentration, flux, and trend estimates with uncertainty for nutrients, chloride, and total suspended solids in tributaries of Lake Champlain, 1990–2014 Concentration, flux, and trend estimates with uncertainty for nutrients, chloride, and total suspended solids in tributaries of Lake Champlain, 1990–2014
The U.S. Geological Survey, in cooperation with the New England Interstate Water Pollution Control Commission and the Vermont Department of Environmental Conservation, estimated daily and 9-month concentrations and fluxes of total and dissolved phosphorus, total nitrogen, chloride, and total suspended solids from 1990 (or first available date) through 2014 for 18 tributaries of Lake...
Authors
Laura Medalie
Preliminary peak stage and streamflow data at selected streamgaging stations in North Carolina and South Carolina for flooding following Hurricane Matthew, October 2016 Preliminary peak stage and streamflow data at selected streamgaging stations in North Carolina and South Carolina for flooding following Hurricane Matthew, October 2016
The passage of Hurricane Matthew across the central and eastern regions of North Carolina and South Carolina during October 7–9, 2016, resulted in heavy rainfall that caused major flooding in parts of the eastern Piedmont in North Carolina and coastal regions of both States. Rainfall totals of 3 to 8 inches and 8 to more than 15 inches were widespread throughout the central and eastern...
Authors
J. Curtis Weaver, Toby D. Feaster, Jeanne C. Robbins