210Pb dating
Peter W. Swarzenski
2014, Book chapter, Encyclopedia of Scientific Dating Methods
Roughly fifty years ago, a small group of scientists from Belgium and the United States, trying to better constrain ice sheet accumulation rates, attempted to apply what was then know about environmental lead as a potential geochronometer. Thus Goldberg (1963) developed the first principles of the 210Pb dating method, which...
A multi-scale assessment of animal aggregation patterns to understand increasing pathogen seroprevalence
Angela K. Brennan, Paul C. Cross, Megan D. Higgs, W. Henry Edwards, Brandon M. Scurlock, Scott Creel
2014, Ecosphere (5)
Understanding how animal density is related to pathogen transmission is important to develop effective disease control strategies, but requires measuring density at a scale relevant to transmission. However, this is not straightforward or well-studied among large mammals with group sizes that range several orders of magnitude or aggregation patterns that...
Stitching the western Piedmont of Virginia: Early Paleozoic tectonic history of the Ellisville Pluton and the Potomac and Chopawamsic Terranes
K. S. Hughes, J. P. Hibbard, R.T. Sauer, William C. Burton
2014, Book
The theme of the 2014 Virginia Geological Field Conference is the tectonic development, economic geology, and seismicity of the western Piedmont of Louisa County, Virginia. It is timely for the conference to turn its attention here, for during the past decade these aspects of western Piedmont geology have garnered the...
Temporal changes in lithology and radiochemistry from the back-barrier environments along the Chandeleur Islands, Louisiana: March 2012-July 2013
Marci E. Marot, C. Scott Adams, Kathryn A. Richwine, Christopher G. Smith, Lisa E. Osterman, Julie Bernier
2014, Open-File Report 2014-1079
Scientists from the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center conducted a time-series collection of shallow sediment cores from the back-barrier environments along the Chandeleur Islands, Louisiana from March 2012 through July 2013. The sampling efforts were part of a larger USGS study to evaluate effects on...
Pharmaceutical compounds in shallow groundwater in non-agricultural areas of Minnesota: study design, methods, and data, 2013
Sarah M. Elliott, Melinda L. Erickson
2014, Data Series 878
The U.S. Geological Survey, in cooperation with the Minnesota Pollution Control Agency, completed a study on the occurrence of pharmaceutical compounds and other contaminants of emerging concern in shallow groundwater in non-agricultural areas of Minnesota during 2013. This report describes the study design and methods for the study on the...
Changing Arctic ecosystems: resilience of caribou to climatic shifts in the Arctic
David D. Gustine, Layne G. Adams, Mary E. Whalen, John M. Pearce
2014, Fact Sheet 2014-3103
The U.S. Geological Survey (USGS) Changing Arctic Ecosystems (CAE) initiative strives to inform key resource management decisions for Arctic Alaska by providing scientific information and forecasts for current and future ecosystem response to a warming climate. Over the past 5 years, a focal area for the USGS CAE initiative has...
The story of invasive algae, arginine, and turtle tumors does not make sense
Thierry M. Work, Mathias Ackermann, James W. Casey, Milani Chaloupka, Lawrence Herbst, Jennifer M. Lynch, Brian A. Stacy
2014, PeerJ Preprints
We are presenting a rebuttal letter to the following article that appeared recently on PeerJ: Van Houtan KS, Smith CM, Dailer ML, and Kawachi M. 2014. Eutrophication and the dietary promotion of sea turtle tumors. PeerJ 2:e602. This article is available at the following URL: https://peerj.com/articles/602/. We argue that the...
Potential population and assemblage influences of non-native trout on native nongame fish in Nebraska headwater streams
Kelly C. Turek, Mark A. Pegg, Kevin L. Pope, Steve Schainost
2014, Ecology of Freshwater Fish (25) 99-108
Non-native trout are currently stocked to support recreational fisheries in headwater streams throughout Nebraska. The influence of non-native trout introductions on native fish populations and their role in structuring fish assemblages in these systems is unknown. The objectives of this study were to determine (i) if the size structure or...
Hyporheic flow and transport processes: mechanisms, models, and biogeochemical implications
Fulvio Boano, Judson W. Harvey, Andrea Marion, Aaron I. Packman, Roberto Revelli, Luca Ridolfi, Worman Anders
2014, Reviews of Geophysics (52) 603-679
Fifty years of hyporheic zone research have shown the important role played by the hyporheic zone as an interface between groundwater and surface waters. However, it is only in the last two decades that what began as an empirical science has become a mechanistic science devoted to modeling studies of...
Editors are editors, not oracles
Dave Schimel, Donald R. Strong, Aaron M. Ellison, Debra P. C. Peters, Sue Silver, Edward A. Johnson, Jayne Belnap, Aimee T. Classen, Timothy E. Essington, Andrew O. Finley, Brian D. Inouye, Emily H. Stanley
2014, Bulletin of the Ecological Society of America (95) 342-346
Farji-Brener and Kitzberger (2014; hereafter FBK) resurrect the issues of Farji-Brener (2007) concerning manuscripts that are submitted to journals but that are not sent out for peer review: a process we call “reject following editorial review” (RFER). We thank FBK for reviving discussion about this important topic as new challenges,...
Formation of fine sediment deposit from a flash flood river in the Mediterranean Sea
Manel Grifoll, Vicenc Gracia, Alfredo L. Aretxabaleta, Jorge Guillen, Manuel Espino, John C. Warner
2014, Journal of Geophysical Research: Oceans (119) 5837-5853
We identify the mechanisms controlling fine deposits on the inner-shelf in front of the Besòs River, in the northwestern Mediterranean Sea. This river is characterized by a flash flood regime discharging large amounts of water (more than 20 times the mean water discharge) and sediment in very short periods lasting...
Evidence for seasonal patterns in the relative abundance of avian influenza virus subtypes in blue-winged teal (Anas discors)
Andrew M. Ramey, Rebecca L. Poulson, Ana S. González-Reiche, Benjamin R. Wilcox, Patrick Walther, Paul Link, Deborah L. Carter, George M. Newsome, Maria L. Muller, Roy D. Berghaus, Daniel R. Perez, Jeffrey S. Hall, David E. Stallknecht
2014, Journal of Wildlife Diseases (50) 916-922
Seasonal dynamics of influenza A viruses (IAVs) are driven by host density and population immunity. Through an analysis of subtypic data for IAVs isolated from Blue-winged Teal (Anas discors), we present evidence for seasonal patterns in the relative abundance of viral subtypes in spring and summer/autumn....
Radiocarbon age-offsets in an arctic lake reveal the long-term response of permafrost carbon to climate change
Benjamin V. Gaglioti, Daniel H. Mann, Benjamin M. Jones, John W. Pohlman, Michael L. Kunz, Matthew J. Wooller
2014, Journal of Geophysical Research: Biogeosciences (119) 1630-1651
Continued warming of the Arctic may cause permafrost to thaw and speed the decomposition of large stores of soil organic carbon (OC), thereby accentuating global warming. However, it is unclear if recent warming has raised the current rates of permafrost OC release to anomalous levels or to what extent soil...
Spatio-temporal analysis of gyres in oriented lakes on the Arctic Coastal Plain of northern Alaska based on remotely sensed images
Shengan Zhan, Richard A. Beck, Kenneth M. Hinkel, Hongxing Liu, Benjamin M. Jones
2014, Remote Sensing (6) 9170-9193
The formation of oriented thermokarst lakes on the Arctic Coastal Plain of northern Alaska has been the subject of debate for more than half a century. The striking elongation of the lakes perpendicular to the prevailing wind direction has led to the development of a preferred wind-generated gyre hypothesis, while...
Water temperature differences by plant community and location in re-established wetlands in the Sacramento-San Joaquin Delta, California, July 2005 to February 2008
Kathryn L. Crepeau, Robin L. Miller
2014, Data Series 882
Rates of carbon storage in wetlands are determined by the balance of its inputs and losses, both of which are affected by environmental factors such as water temperature and depth. In the autumn of 1997, the U.S. Geological Survey re-established two wetlands with different shallow water depths—about 25 and 55...
Water chemistry, seepage investigation, streamflow, reservoir storage, and annual availability of water for the San Juan-Chama Project, northern New Mexico, 1942-2010
Sarah E. McKean, Scott K. Anderholm
2014, Scientific Investigations Report 2014-5155
The Albuquerque Bernalillo County Water Utility Authority supplements the municipal water supply for the Albuquerque metropolitan area, in central New Mexico, with surface water diverted from the Rio Grande. The U.S. Geological Survey, in cooperation with the Albuquerque Bernalillo County Water Utility Authority, undertook this study in which water-chemistry data...
Using surface creep rate to infer fraction locked for sections of the San Andreas fault system in northern California from alignment array and GPS data
James J. Lienkaemper, Forrest S. McFarland, Robert W. Simpson, S. John Caskey
2014, Bulletin of the Seismological Society of America (104) 3094-3114
Surface creep rate, observed along five branches of the dextral San Andreas fault system in northern California, varies considerably from one section to the next, indicating that so too may the depth at which the faults are locked. We model locking on 29 fault sections using each section’s mean long‐term...
Florfenicol residues in Rainbow Trout after oral dosing in recirculating and flow-through culture systems
Jeffery R. Meinertz, Karina R. Hess, Jeffry A. Bernady, M. P. Gaikowski, Melissa Whitsel, R. G. Endris
2014, Journal of Aquatic Animal Health (26) 243-250
Aquaflor is a feed premix for fish containing the broad spectrum antibacterial agent florfenicol (FFC) incorporated at a ratio of 50% (w/w). To enhance the effectiveness of FFC for salmonids infected with certain isolates of Flavobacterium psychrophilum causing coldwater disease, the FFC dose must be increased from the standard 10...
Investigation of hurricane Ivan using the coupled ocean-atmosphere-wave-sediment transport (COAWST) model
Joseph B. Zambon, Ruoying He, John C. Warner
2014, Ocean Dynamics (64) 1535-1554
The coupled ocean–atmosphere–wave–sediment transport (COAWST) model is used to hindcast Hurricane Ivan (2004), an extremely intense tropical cyclone (TC) translating through the Gulf of Mexico. Sensitivity experiments with increasing complexity in ocean–atmosphere–wave coupled exchange processes are performed to assess the impacts of coupling on the predictions of the atmosphere, ocean,...
Alpha-emitting isotopes and chromium in a coastal California aquifer
Jill N. Densmore, John A. Izbicki, Joseph M. Murtaugh, Peter W. Swarzenski, Thomas D. Bullen
2014, Applied Geochemistry (51) 204-215
The unadjusted 72-h gross alpha activities in water from two wells completed in marine and alluvial deposits in a coastal southern California aquifer 40 km north of San Diego were 15 and 25 picoCuries per liter (pCi/L). Although activities were below the Maximum Contaminant Level (MCL) of 15 pCi/L, when adjusted for uranium...
Scaling up watershed model parameters--Flow and load simulations of the Edisto River Basin
Toby D. Feaster, Stephen T. Benedict, Jimmy M. Clark, Paul M. Bradley, Paul Conrads
2014, Conference Paper, Proceedings of the 2014 South Carolina Water Resources Conference
The Edisto River is the longest and largest river system completely contained in South Carolina and is one of the longest free flowing blackwater rivers in the United States. The Edisto River basin also has fish-tissue mercury concentrations that are some of the highest recorded in the United States. As...
USGS National Wildlife Health Center quarterly wildlife mortality report
Anne E. Ballmann, Barbara L. Bodenstein, Robert J. Dusek, Jennifer G. Chipault
2014, Wildlife Disease Association Newsletter 8-9
No abstract available....
Evidence for large-magnitude, post-Eocene extension in the northern Shoshone Range, Nevada, and its implications for Carlin-type gold deposits in the lower plate of the Roberts Mountains allochthon
Joseph P. Colgan, Christopher D. Henry, David A. John
2014, Economic Geology (109) 1843-1862
The northern Shoshone and Toiyabe Ranges in north-central Nevada expose numerous areas of mineralized Paleozoic rock, including major Carlin-type gold deposits at Pipeline and Cortez. Paleozoic rocks in these areas were previously interpreted to have undergone negligible postmineralization extension and tilting, but here we present new data that suggest major...
Book review: Ecology of North American freshwater fishes
Scott A. Bonar
2014, Journal of Fish Biology (85) 1799-1800
This book will be important in courses for upper undergraduates studying fish ecology or for graduate students. However, it will also be an excellent reference for the fishery...
Assessment of the NCHRP abutment scour prediction equations with laboratory and field data
Stephen T. Benedict
2014, Conference Paper, S.C. Water Resources Conference 2014 Proceedings
The U.S. Geological Survey, in coopeation with nthe National Cooperative Highway Research Program (NCHRP) is assessing the performance of several abutment-scour predcition equations developed in NCHRP Project 24-15(2) and NCHRP Project 24-20. To accomplish this assssment, 516 laboratory and 329 fiels measurements of abutment scor were complied from selected sources...
