Simulation of the shallow groundwater-flow system in the Forest County Potawatomi Community, Forest County, Wisconsin
Michael N. Fienen, David A. Saad, Paul F. Juckem
2013, Scientific Investigations Report 2012-5289
The shallow groundwater system in the Forest County Potawatomi Comminity, Forest County, Wisconsin, was simulated by expanding and recalibrating a previously calibrated regional model. The existing model was updated using newly collected water-level measurements, inclusion of surface-water features beyond the previous near-field boundary, and refinements to surface-water features. The updated...
Novel and non-traditional use of stable isotope tracers to study metal bioavailability from natural particles
Marie-Noële Croteau, Daniel J. Cain, Christopher C. Fuller
2013, Environmental Science & Technology (47) 3424-3431
We devised a novel tracing approach that involves enriching test organisms with a stable metal isotope of low natural abundance prior to characterizing metal bioavailability from natural inorganic particles. In addition to circumventing uncertainties associated with labeling natural particles and distinguishing background metals, the proposed "reverse labeling" technique overcomes many...
Owyhee River intracanyon lava flows: does the river give a dam?
Lisa L. Ely, Cooper C. Brossy, P. Kyle House, Elizabeth B. Safran, Jim E. O'Connor, Duane E. Champion, Cassandra R. Fenton, Ninad R. Bondre, Caitlin A. Orem, Gordon E. Grant, Christopher D. Henry, Brent D. Turrin
2013, GSA Bulletin (124) 1667-1687
Rivers carved into uplifted plateaus are commonly disrupted by discrete events from the surrounding landscape, such as lava flows or large mass movements. These disruptions are independent of slope, basin area, or channel discharge, and can dominate aspects of valley morphology and channel behavior for many kilometers. We document and...
Evapotranspiration from marsh and open-water sites at Upper Klamath Lake, Oregon, 2008--2010
David I. Stannard, Marshall W. Gannett, Danial J. Polette, Jason M. Cameron, M. Scott Waibel, J. Mark Spears
2013, Scientific Investigations Report 2013-5014
Water allocation in the Upper Klamath Basin has become difficult in recent years due to the increase in occurrence of drought coupled with continued high water demand. Upper Klamath Lake is a central component of water distribution, supplying water downstream to the Klamath River, supplying water for irrigation diversions, and...
Arsenic induced toxicity in broiler chicks and its alleviation with ascorbic acid: a toxico-patho-biochemical study
Ahrar Khan, Rabia Sharaf, Muhammad Zargham Khan, Muhammad Kashif Saleemi, Fazal Mahmood
2013, International Journal of Agriculture & Biology (15) 1105-1111
To find out toxico-pathological effects of arsenic (As) and ameliorating effect of ascorbic acid (Vit C), broilers birds were administered 50 and 250 mg/kg arsenic and Vit C, respectively alone/in combination. As-treated birds exhibited severe signs of toxicity such as dullness, depression, increased thirst, open mouth breathing and watery diarrhea....
Characterization and simulation of fate and transport of selected volatile organic compounds in the vicinities of the Hadnot Point Industrial Area and landfill
L. Elliott Jones, René J. Suárez-Soto, Barbara A. Anderson, Morris L. Maslia
2013, Report, Analyses and historical reconstruction of groundwater flow, contaminant fate and transport, and distribution of drinking water within the service areas of the Hadnot Point and Holcomb Boulevard Water Treatment Plants and vicinities, U.S. Marine Corps Base Camp Lejeune, North Carolina
This supplement of Chapter A (Supplement 6) describes the reconstruction (i.e. simulation) of historical concentrations of tetrachloroethylene (PCE), trichloroethylene (TCE), and benzene3 in production wells supplying water to the Hadnot Base (USMCB) Camp Lejeune, North Carolina (Figure S6.1). A fate and transport model (i.e., MT3DMS [Zheng and Wang 1999]) was...
Modeling lahar behavior and hazards
Vernon Manville, Jon J. Major, Sarah A. Fagents
2013, Book chapter, Modeling volcanic processes: the physics and mathematics of volcanism
Lahars are highly mobile mixtures of water and sediment of volcanic origin that are capable of traveling tens to > 100 km at speeds exceeding tens of km hr-1. Such flows are among the most serious ground-based hazards at many volcanoes because of their sudden onset, rapid advance rates, long...
Uncertainty in assessing the impacts of global change with coupled dynamic species distribution and population models
Erin Conlisk, Alexandra D. Syphard, Janet Franklin, Lorraine E. Flint, Alan L. Flint, Helen Regan
2013, Global Change Biology (19) 858-869
Concern over rapid global changes and the potential for interactions among multiple threats are prompting scientists to combine multiple modelling approaches to understand impacts on biodiversity. A relatively recent development is the combination of species distribution models, land‐use change predictions, and dynamic population models to predict the relative and combined...
SedPods: a low-cost coral proxy for measuring net sedimentation
Michael E. Field, Henry Chezar, Curt D. Storlazzi
2013, Coral Reefs (32) 155-159
Sediment derived from impaired watersheds is a major stressor to adjacent coral reefs globally. To better understand stresses generated by specific processes and events, many coral reef scientists seek to collect physical samples of settling particles and obtain reproducible information about net rates of sediment accumulation on coral reefs. Yet,...
Application and evaluation of electromagnetic methods for imaging saltwater intrusion in coastal aquifers: Seaside Groundwater Basin, California
Vanessa Nenna, Daan Herckenrather, Rosemary Knight, Nick Odlum, Darcy McPhee
2013, Geophysics (78) B77-B88
Developing effective resource management strategies to limit or prevent saltwater intrusion as a result of increasing demands on coastal groundwater resources requires reliable information about the geologic structure and hydrologic state of an aquifer system. A common strategy for acquiring such information is to drill sentinel wells near the coast...
Raman spectroscopy of efflorescent sulfate salts from Iron Mountain Mine Superfund Site, California
Pablo Sobron, Charles N. Alpers
2013, Astrobiology (13) 270-278
The Iron Mountain Mine Superfund Site near Redding, California, is a massive sulfide ore deposit that was mined for iron, silver, gold, copper, zinc, and pyrite intermittently for nearly 100 years. As a result, both water and air reached the sulfide deposits deep within the mountain, producing acid mine drainage...
Drought, deluge and declines: the impact of precipitation extremes on amphibians in a changing climate
Susan C. Walls, William J. Barichivich, Mary E. Brown
2013, Biology (2) 399-418
The Class Amphibia is one of the most severely impacted taxa in an on-going global biodiversity crisis. Because amphibian reproduction is tightly associated with the presence of water, climatic changes that affect water availability pose a particularly menacing threat to both aquatic and terrestrial-breeding amphibians. We explore the impacts that...
Response of anaerobic carbon cycling to water table manipulation in an Alaskan rich fen
E.S. Kane, M.R. Chivers, M.R. Turetsky, Claire C. Treat, D.G. Petersen, M. Waldrop, J.W. Harden, A. D. McGuire
2013, Soil Biology and Biochemistry (58) 50-60
To test the effects of altered hydrology on organic soil decomposition, we investigated CO2 and CH4 production potential of rich-fen peat (mean surface pH = 6.3) collected from a field water table manipulation experiment including control, raised and lowered water table treatments. Mean anaerobic CO2 production potential at 10 cm...
Nearshore thermal gradients of the Colorado River near the Little Colorado River confluence, Grand Canyon National Park, Arizona, 2010
Rob Ross, Paul E. Grams
2013, Open-File Report 2013-1013
Construction and operation of Glen Canyon Dam has dramatically impacted the flow of the Colorado River through Glen, Marble, and Grand Canyons. Extremes in both streamflow and water temperature have been suppressed by controlled releases from the dam. Trapping of sediment in Lake Powell, the reservoir formed by Glen Canyon...
Arsenic concentrations, related environmental factors, and the predicted probability of elevated arsenic in groundwater in Pennsylvania
Eliza L. Gross, Dennis J. Low
2013, Scientific Investigations Report 2012-5257
Analytical results for arsenic in water samples from 5,023 wells obtained during 1969–2007 across Pennsylvania were compiled and related to other associated groundwater-quality and environmental factors and used to predict the probability of elevated arsenic concentrations, defined as greater than or equal to 4.0 micrograms per liter (µg/L), in groundwater. Arsenic...
Mineral resource of the month: beryllium
Water Resources Division, U.S. Geological Survey
2013, Earth (58) 57-57
The article discusses information about Beryllium. It notes that Beryllium is a light metal that has a gray color. The metal is used in the production of parts and devices including bearings, computer-chip heat sinks, and output windows of X-ray tubes. The article mentions Beryllium's discovery in 1798 by French...
Predicted effect of landscape position on wildlife habitat value of Conservation Reserve Enhancement Program wetlands in a tile-drained agricultural region
David L. Otis, William R. Crumpton, David Green, Anna Loan-Wilsey, Tom Cooper, Rex R. Johnson
2013, Restoration Ecology (21) 276-284
Justification for investment in restored or constructed wetland projects are often based on presumed net increases in ecosystem services. However, quantitative assessment of performance metrics is often difficult and restricted to a single objective. More comprehensive performance assessments could help inform decision-makers about trade-offs in services provided by alternative restoration...
Fish assemblages in borrow-pit lakes of the Lower Mississippi River
Leandro E. Miranda, K. J. Killgore, J.J. Hoover
2013, Transactions of the American Fisheries Society (142) 596-605
Borrow-pit lakes encompass about a third of the lentic water habitats (by area) in the active floodplain of the Lower Mississippi River, yet little is known about their fish assemblages. We investigated whether fish assemblages supported by borrow-pit lakes resembled those in oxbow lakes to help place the ecological relevance...
Evaluating methodological assumptions of a catch-curve survival estimation of unmarked precocial shorebird chickes
Conor P. McGowan, Beth Gardner
2013, Waterbirds (36) 82-87
Estimating productivity for precocial species can be difficult because young birds leave their nest within hours or days of hatching and detectability thereafter can be very low. Recently, a method for using a modified catch-curve to estimate precocial chick daily survival for age based count data was presented using Piping...
Tidally influenced alongshore circulation at an inlet-adjacent shoreline
Jeff E. Hansen, Edwin P.L. Elias, Jeffrey H. List, Li H. Erikson, Patrick L. Barnard
2013, Continental Shelf Research (56) 26-38
The contribution of tidal forcing to alongshore circulation inside the surfzone is investigated at a 7 km long sandy beach adjacent to a large tidal inlet. Ocean Beach in San Francisco, CA (USA) is onshore of a ∼150 km2 ebb-tidal delta and directly south of the Golden Gate, the sole...
Daily survival rate for nests and chicks of Least Terns (Sternula antillarum) at natural nest sites in South Carolina
Gillian L. Brooks, Felicia J. Sanders, Patrick D. Gerard, Patrick G.R. Jodice
2013, Waterbirds (36) 1-10
Although a species of conservation concern, little is known about the reproductive success of Least Terns (Sternula antillarum) throughout the southeastern USA where availability of natural beaches for nesting is limited. Daily survival rate (DSR) of nests and chicks was examined at four natural nesting sites in Cape Romain National...
Tamarisk: Ecohydrology of a successful plant
Pamela L. Nagler, Martin F. Quigley
Anna Sher, Martin F. Quigley, editor(s)
2013, Book chapter, Tamarix: A case study of ecological change in the American West
This chapter explores the ecohydrology of tamarisk, with particular emphasis on water use, salt tolerance, potential for salinizing flood plains, drought tolerance and rooting depths, and ecological interactions with native plants on western rivers. It presents the working hypothesis that tamarisk is adapted to water stress, with low to moderate...
Determination of Antimycin-A in water by liquid chromatographic/mass spectrometry: single-laboratory validation
Jeffry A. Bernardy, Terrance D. Hubert, Jacob M. Ogorek, Larry J. Schmidt
2013, Journal of AOAC International (96) 413-421
An LC/MS method was developed and validated for the quantitative determination and confirmation of antimycin-A (ANT-A) in water from lakes or streams. Three different water sample volumes (25, 50, and 250 mL) were evaluated. ANT-A was stabilized in the field by immediately extracting it from water into anhydrous acetone using...
Faulting within the Mount St. Helens conduit and implications for volcanic earthquakes
John S. Pallister, Katharine V. Cashman, Jonathan T. Hagstrum, Nicholas M. Beeler, Seth C. Moran, Roger P. Denlinger
2013, GSA Bulletin (125) 359-376
The 2004–2008 eruption of Mount St. Helens produced seven dacite spines mantled by cataclastic fault rocks, comprising an outer fault core and an inner damage zone. These fault rocks provide remarkable insights into the mechanical processes that accompany extrusion of degassed magma, insights that are useful in forecasting dome-forming...
Suspended-sediment flux and retention in a backwater tidal slough complex near the landward boundary of an estuary
Tara L. Morgan-King, David H. Schoellhamer
2013, Estuaries and Coasts (36) 300-318
Backwater tidal sloughs are commonly found at the landward boundary of estuaries. The Cache Slough complex is a backwater tidal region within the Upper Sacramento–San Joaquin Delta that includes two features that are relevant for resource managers: (1) relatively high abundance of the endangered fish, delta smelt (Hypomesus...
