Concentrations and distributions of metals associated with dissolved organic matter from the Suwannee River (GA, USA)
M. Keshia Kuhn, Elisabeth Neubauer, Thilo Hofmann, Frank von der Kammer, George R. Aiken, Patricia A. Maurice
2015, Environmental Engineering Science (32) 54-65
Concentrations and distributions of metals in Suwannee River (SR) raw filtered surface water (RFSW) and dissolved organic matter (DOM) processed by reverse osmosis (RO), XAD-8 resin (for humic and fulvic acids [FA]), and XAD-4 resin (for “transphilic” acids) were analyzed by asymmetrical flow field-flow fractionation (AsFlFFF). SR samples were compared...
An integrated approach to modeling changes in land use, land cover, and disturbance and their impact on ecosystem carbon dynamics: a case study in the Sierra Nevada Mountains of California
Benjamin M. Sleeter, Jinxun Liu, Colin Daniel, Leonardo Frid, Zhiliang Zhu
2015, AIMS Environmental Science (2) 577-606
Increased land-use intensity (e.g. clearing of forests for cultivation, urbanization), often results in the loss of ecosystem carbon storage, while changes in productivity resulting from climate change may either help offset or exacerbate losses. However, there are large uncertainties in how land and climate systems will evolve and interact to...
Modifications to risk-targeted seismic design maps for subduction and near-fault hazards
Abbie B. Liel, Nico Luco, Meera Raghunandan, C. Champion
Terje Haukaas, editor(s)
2015, Conference Paper, Proceedings of the 12th international conference on applications of statistics and probability in civil engineering (ICASP12)
ASCE 7-10 introduced new seismic design maps that define risk-targeted ground motions such that buildings designed according to these maps will have 1% chance of collapse in 50 years. These maps were developed by iterative risk calculation, wherein a generic building collapse fragility curve is convolved with the U.S. Geological...
Combining state-and-transition simulations and species distribution models to anticipate the effects of climate change
Brian W. Miller, Leonardo Frid, Tony Chang, N. B. Piekielek, Andrew J. Hansen, Jeffrey T. Morisette
2015, AIMS Environmental Science (2) 400-426
State-and-transition simulation models (STSMs) are known for their ability to explore the combined effects of multiple disturbances, ecological dynamics, and management actions on vegetation. However, integrating the additional impacts of climate change into STSMs remains a challenge. We address this challenge by combining an STSM with species distribution modeling (SDM)....
Reaction modeling of drainage quality in the Duluth Complex, northern Minnesota, USA
Robert R. Seal, Kim Lapakko, Nadine M. Piatak, Laurel G. Woodruff
2015, Conference Paper
Reaction modeling can be a valuable tool in predicting the long-term behavior of waste material if representative rate constants can be derived from long-term leaching tests or other approaches. Reaction modeling using the REACT program of the Geochemist’s Workbench was conducted to evaluate long-term drainage quality affected by disseminated Cu-Ni-(Co-)-PGM...
Groundwater conditions in Utah, spring of 2015
Carole B. Burden
2015, Cooperative Investigations Report 56
This is the fifty-second in a series of annual reports that describe groundwater conditions in Utah. Reports in this series, published cooperatively by the U.S. Geological Survey and the Utah Department of Natural Resources, Division of Water Rights, and the Utah Department of Environmental Quality, Division of Water Quality, provide...
Ursus maritimus
Oystein Wiig, Steven C. Amstrup, Todd C. Atwood, Kristin L Kaidre, Nicholas J Lunn, Martyn E. Obbard, Eric V. Regehr, Gregory W. Thiemann
2015, Book chapter, The IUCN Red List of Threatened Species 2015
No abstract available....
Future land-use scenarios and the loss of wildlife habitats in the southeastern United States
Sebastian Martinuzzi, John C. Withey, Anna M. Pidgeon, Andrew Plantinga, Alexa McKerrow, Steven G. Williams, David P. Helmers, Volker C. Radeloff
2015, Ecological Applications (25) 160-171
Land-use change is a major cause of wildlife habitat loss. Understanding how changes in land-use policies and economic factors can impact future trends in land use and wildlife habitat loss is therefore critical for conservation efforts. Our goal here was to evaluate the consequences of future land-use changes under different...
Climate change and vulnerability of bull trout (Salvelinus confluentus) in a fire-prone landscape.
Jeffrey A. Falke, Rebecca L. Flitcroft, Jason B. Dunham, Kristina M. McNyset, Paul F. Hessburg, Gordon H. Reeves
2015, Canadian Journal of Fisheries and Aquatic Sciences (72) 304-318
Linked atmospheric and wildfire changes will complicate future management of native coldwater fishes in fire-prone landscapes, and new approaches to management that incorporate uncertainty are needed to address this challenge. We used a Bayesian network (BN) approach to evaluate population vulnerability of...
Paleoseismic evidence for late Holocene tectonic deformation along the Saddle mountain fault zone, Southeastern Olympic Peninsula, Washington
Elizabeth Barnett, Brian L. Sherrod, Jonathan F. Hughes, Harvey M. Kelsey, Jessica L. Czajkowski, Timothy J. Walsh, Trevor A. Contreras, Elizabeth R. Schermer, Robert J. Carson
2015, Bulletin of the Seismological Society of America (105) 38-71
Trench and wetland coring studies show that northeast‐striking strands of the Saddle Mountain fault zone ruptured the ground about 1000 years ago, generating prominent scarps. Three conspicuous subparallel fault scarps can be traced for 15 km on Light Detection and Ranging (LiDAR) imagery, traversing the foothills of the southeast Olympic Mountains:...
Using SO2 camera imagery and seismicity to examine degassing and gas accumulation at Kīlauea Volcano, May 2010
Patricia A Nadeau, Cynthia A. Werner, Gregory P. Waite, Simon A Carn, Ian D Brewer, Tamar Elias, Andrew Sutton, Christoph Kern
2015, Journal of Volcanology and Geothermal Research (300) 70-80
SO2 camera measurements at Kīlauea Volcano, Hawaii, in May of 2010 captured two occurrences of lava lake rise and fall within the Halema'um'au Crater summit vent. During high lava stands we observed diminished SO2 emission rates and decreased seismic tremor. Similar events at Kīlauea have been described as the result...
Effects of rapid urbanization on streamflow, erosion, and sedimentation in a desert stream in the American Southwest
John W. Whitney, Patrick A. Glancy, Susan E. Buckingham, Arthur C. Ehrenberg
2015, Anthropocene (10) 29-42
Rapid urbanization has resulted in a series of sequential effects on a desert stream in the American Southwest. Lower Las Vegas Wash was a dry wash characterized by infrequent flood deposition when Las Vegas, Nevada was established in 1905. Wastewater effluent was discharged into the wash in low volumes for...
Golden Eagle predation of an adult turkey vulture
Clint W. Boal
2015, Bulletin of the Texas Ornithological Society (48) 53-55
The Golden Eagle (Aquila chrysaetos) is a large, apex predator that occurs at low densities, has a long life span, experiences delayed maturity, has low reproductive rates, and has no natural predators (Watson 1997, Kochert et al. 2002). Golden Eagles are sensitive to anthropogenic driven landscape changes in land cover...
Identifying sediment sources in the sediment TMDL process
Allen C. Gellis, Faith A. Fitzpatrick, Joseph P. Schubauer-Berigan, R.B. Landy, Lillian E. Gorman Sanisaca
2015, Conference Paper, Proceedings of the 3rd Joint Federal Interagency Conference (10th Federal Interagency Sedimentation Conference and 5th Federal Interagency Hydrologic Modeling Conference)
Sediment is an important pollutant contributing to aquatic-habitat degradation in many waterways of the United States. This paper discusses the application of sediment budgets in conjunction with sediment fingerprinting as tools to determine the sources of sediment in impaired waterways. These approaches complement monitoring, assessment, and modeling of sediment erosion,...
Introduction to Special Issue: Disruption of thyroid, sex steroid, and adrenal hormone systems and their crosstalk in aquatic wildlife
Reynaldo Patino, James A. Carr
2015, General and Comparative Endocrinology (219)-1
No abstract available....
Reasons anglers did not respond to an internet survey and evaluation of data quality
Larry M. Gigliotti, Kjetil R. Henderson
2015, Proceedings of the South Dakota Academy of Science (94) 155-170
Natural resource management agencies have traditionally used statewide mail surveys to gather information from anglers, but cost savings and faster returns occur using the internet. This study examined mail or internet fishery survey return rates and associated data by license type of South Dakota resident anglers. Junior anglers (ages 16-18;...
Hydrogeologic map of the Islamic Republic of Mauritania (phase V, deliverable 56), Synthesis of hydrologic data (phase V, deliverable 57), and chemical hydrologic map of the Islamic Republic of Mauritania (added value)
Michael J. Friedel, Carol A. Finn, John D. Horton
2015, Open-File Report 2013-1280-C
A hydrogeologic study was conducted to support mineral-resource assessment activities in Mauritania, Africa. Airborne magnetic depth estimates reveal two primary groundwater basins: the porous coastal Continental Terminal Basin (fill deposits); and the interior, fractured interior Taoudeni Basin. In the Continental Terminal Basin, there is uniform vertical recharge and localized discharge...
Mate replacement and alloparental care in Ferruginous Hawk (Buteo regalis)
Shubham Datta, Will M. Inselman, Jonathan A. Jenks, Kent C. Jensen, Christopher C. Swanson, Robert W. Klaver, Indrani Sasmal, Troy W. Grovenburg
2015, The Prairie Naturalist (47) 36-37
Alloparental care (i.e., care for unrelated offspring) has been documented in various avian species (Maxson 1978, Smith et al. 1996, Tella et al. 1997, Lislevand et al. 2001, Literak and Mraz 2011). A male replacement mate that encounters existing broods has options, which include alloparental care or infanticide. Infanticide may...
Synthesis of geophysical data (phase V, deliverable 55)
Carol A. Finn, Eric D. Anderson
2015, Open-File Report 2013-1280-B
Aeromagnetic and radiometric data were used to map shallow Precambrian basement lithology and structure and determine the depth to magnetic basement, which in most cases, corresponds to the depth to crystalline basement of interest for mineral exploration. These depths, along with those determined from gravity data, help identify basins with...
Landsat maps (phase V, deliverable 60), ASTER maps (phase V, deliverable 62), ASTER_DEM maps (phase V, deliverable 63), and spectral remote sensing in support of PRISM-II mineral resource assessment project, Islamic Republic of Mauritania (phase V, deliverables 61 and 64)
Barnaby W. Rockwell, Daniel H. Knepper, John D. Horton
2015, Open-File Report 2013-1280-E
Multispectral satellite data acquired by the Landsat 5 Thematic Mapper (TM), Landsat 7 Enhanced Thematic Mapper Plus (ETM+), and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) sensors were processed and interpreted in support of the PRISM-II project (Second Projet de Renforcement Institutionnel du Secteur Minier de la Republique Islamique...
Synthesis of geological, structural, and geochronologic data (phase V, deliverable 53)
Dwight Bradley, Paul O'Sullivan, Michael A. Cosca, Holly Motts, John D. Horton, Cliff D. Taylor, Georges Beaudoin, Gregory K. Lee, Jahan Ramezani, Daniel N. Bradley, James V. Jones III, Samuel Bowring
2015, Open-File Report 2013-1280-A
This report is a companion to the new Geologic Map of Mauritania (Bradley and others, 2015; referred to herein as “Deliverable 51”) and the new Structural Geologic Map of Mauritania (Bradley and others, 2015a; referred to herein as “Deliverable 52”). Section 1 contains explanatory information for these two digital maps....
Effects of natural organic matter properties on the dissolution kinetics of zinc oxide nanoparticles
Chuanjia Jiang, George R. Aiken, Heileen Hsu-Kim
2015, Environmental Science & Technology (49) 11476-11484
The dissolution of zinc oxide (ZnO) nanoparticles (NPs) is a key step of controlling their environmental fate, bioavailability, and toxicity. Rates of dissolution often depend upon factors such as interactions of NPs with natural organic matter (NOM). We examined the effects of 16 different NOM isolates on the dissolution kinetics...
Slip-pulse rupture behavior on a 2 meter granite fault
Gregory C. McLaskey, Brian D. Kilgore, Nicholas M. Beeler
2015, Geophysical Research Letters (42) 7039-7045
We describe observations of dynamic rupture events that spontaneously arise on meter-scale laboratory earthquake experiments. While low-frequency slip of the granite sample occurs in a relatively uniform and crack-like manner, instruments capable of detecting high frequency motions show that some parts of the fault slip abruptly (velocity >100 mm∙s-1, acceleration...
Countrywide digital elevation models for the Islamic Republic of Mauritania—SRTM and ASTER (phase V, deliverable 65)
Gregory K. Lee
2015, Open-File Report 2013-1280-F
A digital elevation model (DEM) of the entire country of the Islamic Republic of Mauritania was produced using Shuttle Radar Topography Mission (SRTM) data as required for deliverable 65 of the contract. In addition, because of significant recent advancements of availability, seamlessness, and validity of Advanced Spaceborne Thermal Emission and...
Shoreface response and recovery to Hurricane Sandy: Fire Island, NY
Timothy R. Nelson, Cheryl J. Hapke
Ping Wang, Julie D. Rosati, Jun Cheng, editor(s)
2015, Conference Paper, The proceedings of the coastal sediments 2015
The shoreface of Fire Island was extensively modified by Hurricane Sandy and subsequent storms in the following winter months. The changes were evaluated using various morphometrics of the shoreface from four bathymetric surveys, one prior to Hurricane Sandy, and three over the course of twenty months following Sandy. The datasets...
