Simulation of groundwater flow and interaction of groundwater and surface water on the Lac du Flambeau Reservation, Wisconsin
Paul F. Juckem, Michael N. Fienen, Randall J. Hunt
2014, Scientific Investigations Report 2014-5020
The Lac du Flambeau Band of Lake Superior Chippewa and Indian Health Service are interested in improving the understanding of groundwater flow and groundwater/surface-water interaction on the Lac du Flambeau Reservation (Reservation) in southwest Vilas County and southeast Iron County, Wisconsin, with particular interest in an understanding of the potential...
Groundwater availability in the Crouch Branch and McQueen Branch aquifers, Chesterfield County, South Carolina, 1900-2012
Bruce G. Campbell, James Landmeyer
2014, Scientific Investigations Report 2014-5050
Chesterfield County is located in the northeastern part of South Carolina along the southern border of North Carolina and is primarily underlain by unconsolidated sediments of Late Cretaceous age and younger of the Atlantic Coastal Plain. Approximately 20 percent of Chesterfield County is in the Piedmont Physiographic Province, and this...
Neotectonics and geomorphic evolution of the northwestern arm of the Yellowstone Tectonic Parabola: Controls on intra-cratonic extensional regimes, southwest Montana
Chester A. Ruleman, Mort Larsen, Michael C. Stickney
2014, Book chapter, Geological Society of America Field Guide 37
The catastrophic Hebgen Lake earthquake of 18 August 1959 (MW 7.3) led many geoscientists to develop new methods to better understand active tectonics in extensional tectonic regimes that address seismic hazards. The Madison Range fault system and adjacent Hebgen Lake–Red Canyon fault system provide an intermountain active tectonic analog for...
Noble gas isotopes in mineral springs within the Cascadia Forearc, Washington and Oregon
Patricia A. McCrory, James E. Constantz, Andrew G. Hunt
2014, Open-File Report 2014-1064
This U.S. Geological Survey report presents laboratory analyses along with field notes for a pilot study to document the relative abundance of noble gases in mineral springs within the Cascadia forearc of Washington and Oregon. Estimates of the depth to the underlying Juan de Fuca oceanic plate beneath the sample...
Groundwater-quality data in seven GAMA study units: results from initial sampling, 2004-2005, and resampling, 2007-2008, of wells: California GAMA Program Priority Basin Project
Robert H. Kent, Kenneth Belitz, Miranda S. Fram
2014, Data Series 795
The Priority Basin Project (PBP) of the Groundwater Ambient Monitoring and Assessment (GAMA) Program was developed in response to the Groundwater Quality Monitoring Act of 2001 and is being conducted by the U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board (SWRCB). The GAMA-PBP began...
Distribution and extent of heavy metal accumulation in Song Sparrows (Melospiza melodia), upper Santa Cruz River watershed, southern Arizona, 2011-12
Michael B. Lester, Charles van Riper III
2014, Open-File Report 2014-1072
Riparian ecosystems in arid environments provide critical habitat for breeding, migratory, and wintering birds, yet are often at risk of contamination by heavy metals. Birds and other animals living in contaminated areas are susceptible to adverse health effects as a result of long-term exposure and bioaccumulation of heavy metals. We...
Mercury in the soil of two contrasting watersheds in the eastern United States
Douglas A. Burns, Laurel G. Woodruff, Paul M. Bradley, William F. Cannon
2014, PLoS ONE (9)
Soil represents the largest store of mercury (Hg) in terrestrial ecosystems, and further study of the factors associated with soil Hg storage is needed to address concerns about the magnitude and persistence of global environmental Hg bioaccumulation. To address this need, we compared total Hg and methyl Hg concentrations and...
Testing metapopulation concepts: effects of patch characteristics and neighborhood occupancy on the dynamics of an endangered lagomorph
Mitchell J. Eaton, Phillip T. Hughes, James E. Hines, James D. Nichols
2014, Oikos (123) 662-676
Metapopulation ecology is a field that is richer in theory than in empirical results. Many existing empirical studies use an incidence function approach based on spatial patterns and key assumptions about extinction and colonization rates. Here we recast these assumptions as hypotheses to be tested using 18 years of historic...
Clinal variation or validation of a subspecies? A case study of the Graptemys nigrinoda complex (Testudines: Emydidae)
Joshua R. Ennen, Marley E. Kalis, Adam L. Patterson, Brian R. Kreiser, Jeffrey E. Lovich, James Godwin, Carl P. Qualls
2014, Biological Journal of the Linnean Society (111) 810-822
Widely distributed species often display intraspecific morphological variation due to the abiotic and biotic gradients experienced across their ranges. Historically, in many vertebrate taxa, such as birds and reptiles, these morphological differences within a species were used to delimit subspecies. Graptemys nigrinoda is an aquatic turtle species endemic to the...
Airborne geophysical surveys conducted in western Nebraska, 2010: contractor reports and data
U.S.Geological Survey Crustal Geophysical and Geochemical Science Center
2014, Open-File Report 2013-1268
This report contains three contractor reports and data files for an airborne electromagnetic survey flown from June 28 to July 7, 2010. The first report; “SkyTEM Survey: Nebraska, USA, Data” describes data aquisition and processing from a time-domain electromagnetic and magnetic survey performed by SkyTEM Canada, Inc. (the North American...
Geochronology and correlation of Tertiary volcanic and intrusive rocks in part of the southern Toquima Range, Nye County, Nevada
Daniel R. Shawe, Lawrence W. Snee, Frank M. Byers Jr., Edward A. du Bray
2014, Scientific Investigations Report 2013-5206
Extensive volcanic and intrusive igneous activity, partly localized along regional structural zones, characterized the southern Toquima Range, Nevada, in the late Eocene, Oligocene, and Miocene. The general chronology of igneous activity has been defined previously. This major episode of Tertiary magmatism began with emplacement of a variety of intrusive rocks,...
Soils, vegetation, and woody debris data from the 2001 Survey Line fire and a comparable unburned site, Tanana Flats region, Alaska
Kristen L. Manies, Jennifer W. Harden, Teresa N. Holingsworth
2014, Open-File Report 2014-1049
This report describes the collection and processing methodologies for samples obtained at two sites within Interior Alaska: (1) a location within the 2001 Survey Line burn, and (2) an unburned location, selected as a control. In 2002 and 2004 U.S. Geological Survey investigators measured soil properties including, but not limited...
Linking aquifer spatial properties and non-Fickian transport in mobile-immobile like alluvial settings
Yong Zhang, Christopher T. Green, Boris Baeumer
2014, Journal of Hydrology (512) 315-331
Time-nonlocal transport models can describe non-Fickian diffusion observed in geological media, but the physical meaning of parameters can be ambiguous, and most applications are limited to curve-fitting. This study explores methods for predicting the parameters of a temporally tempered Lévy motion (TTLM) model for transient sub-diffusion in mobile–immobile like alluvial...
Decadal surface water quality trends under variable climate, land use, and hydrogeochemical setting in Iowa, USA
Christopher T. Green, Barbara A. Bekins, Stephen J. Kalkhoff, Robert M. Hirsch, Lixia Liao, Kimberlee K. Barnes
2014, Water Resources Research (50) 2425-2443
Understanding how nitrogen fluxes respond to changes in agriculture and climate is important for improving water quality. In the midwestern United States, expansion of corn cropping for ethanol production led to increasing N application rates in the 2000s during a period of extreme variability of annual precipitation. To examine the...
Delineation of brine contamination in and near the East Poplar oil field, Fort Peck Indian Reservation, northeastern Montana, 2004-09
Joanna N. Thamke, Bruce D. Smith
2014, Scientific Investigations Report 2014-5024
The extent of brine contamination in the shallow aquifers in and near the East Poplar oil field is as much as 17.9 square miles and appears to be present throughout the entire saturated zone in contaminated areas. The brine contamination affects 15–37 billion gallons of groundwater. Brine contamination in the...
Understanding thermodynamic relationships and geochemical mass balances from catchment to coast: A tribute to the life and career of Owen P. Bricker III
Suzanne B. Bricker, Fred T. Mackenzie, Jill Baron, Jason Price
2014, Aquatic Geochemistry (20) 81-86
This special volume of aquatic geochemistry is dedicated to the memory of Owen Peterson Bricker III (1936–2011) and serves as a tribute to his life and career. Owen had a distinguished and productive research career in both academics at Johns Hopkins University (Fig. 1) and as a public servant with...
Featured collection introduction: contaminants of emerging concern II
William A. Battaglin, Alan Kolok
William Battaglin, Alan Kolok, editor(s)
2014, Journal of the American Water Resources Association (50) 261-265
This collection of 13 articles focuses on CECs, and each of the articles highlights a specific aspect of this broad topic. The articles were solicited from researchers who participated in the second summer specialty conference on this topic, organized by the American Water Resources Association. The title of the conference...
Seasonal drift and feeding periodicity during summer of the amphipod, Gammarus psuedolimnaeus
James H. Johnson
2014, Journal of Freshwater Ecology (29)
Downstream drift of aquatic invertebrates is an important ecological process that varies temporally. Seasonal patterns of diel drift and diel feeding periodicity during summer of the amphipod Gammarus pseudolimnaeus were examined in a small stream in central New York. Seasonal trends in drift were similar with peak drift occurring from...
Sedimentary facies of the upper Cambrian (Furongian; Jiangshanian and Sunwaptan) Tunnel City Group, Upper Mississippi Valley: new insight on the old stormy debate
Jennifer D. Eoff
2014, Sedimentary Geology (302) 102-121
New data from detailed measured sections permit a comprehensive revision of the sedimentary facies of the Furongian (upper Cambrian; Jiangshanian and Sunwaptan stages) Tunnel City Group (Lone Rock Formation and Mazomanie Formation) of Wisconsin and Minnesota. Heterogeneous sandstones, comprising seven lithofacies along a depositional transect from shoreface to transitional-offshore environments,...
The 3D Elevation Program: summary for Missouri
William J. Carswell Jr.
2014, Fact Sheet 2014-3020
Elevation data are essential to a broad range of applications, including forest resources management, wildlife and habitat management, national security, recreation, and many others. For the State of Missouri, elevation data are critical for agriculture and precision farming; natural resources conservation; flood risk management; homeland security, law enforcement, and disaster...
Conservation and management of fisheries and aquatic communities in Great Lakes connecting channels
Edward F. Roseman, Patricia A. Thompson, John M. Farrell, Nicholas E. Mandrak, Carol A. Stepien
2014, Journal of Great Lakes Research (40) 1-6
The North American Laurentian Great Lakes are linked by a unique series of riverine and lacustrine waters known as the Great Lakes connecting channels that are as integral to the basin's ecology and economies as the lakes themselves. The St. Marys River (SMR) is the northernmost channel and flows from...
Does the timing of attainment of maturity influence sexual size dimorphism and adult sex ratio in turtles?
Jeffrey E. Lovich, J. Whitfield Gibbons, Mickey Agha
2014, Biological Journal of the Linnean Society (112) 142-149
The attainment of sexual maturity has been shown to affect measures of sexual size dimorphism (SSD) and adult sex ratios in several groups of vertebrates. Using data for turtles, we tested the model that sex ratios are expected to be male-biased when females are larger than males and female-biased when...
Risk of predation and weather events affect nest site selection by sympatric Pacific (Gavia pacifica) and Yellow-billed (Gavia adamsii) loons in Arctic habitats
Trevor B. Haynes, Joel A. Schmutz, Mark S. Lindberg, Amanda E. Rosenberger
2014, Waterbirds (37) 16-25
Pacific (Gavia pacifica) and Yellow-billed (G. adamsii) loons nest sympatrically in Arctic regions. These related species likely face similar constraints and requirements for nesting success; therefore, use of similar habitats and direct competition for nesting habitat is likely. Both of these loon species must select a breeding lake that provides...
Impacts of upper respiratory tract disease on olfactory behavior of the Mojave desert tortoise
Jennifer Germano, Vanessa E. Van Zerr, Todd C. Esque, Ken E. Nussear, Nadine Lamberski
2014, Journal of Wildlife Diseases (50) 354-358
Upper respiratory tract disease (URTD) caused by Mycoplasma agassizii is considered a threat to desert tortoise populations that should be addressed as part of the recovery of the species. Clinical signs can be intermittent and include serous or mucoid nasal discharge and respiratory difficulty when nares are occluded. This nasal...
USGS National Wildlife Health Center quarterly mortality report
Anne E. Ballmann, C. LeAnn White, Barbara L. Bodenstein, Jennifer L. Buckner
2014, Wildlife Disease Association Newsletter 3-5
No abstract available....
