Global change and water availability and quality: Challenges ahead
Matthew C. Larsen
Satinder Ahuja, editor(s)
2013, Book chapter, Comprehensive water quality and purification
The US is in the midst of a continental scale, multiyear water resources experiment. What are we doing? We are expanding population at two to three times the national growth rate, particularly where water stress is already great. We are expanding irrigated agriculture from the west to the east, where...
Temporal dynamics of biogeochemical processes at the Norman Landfill site
Bhavna Arora, Binayak P. Mohanty, Jennifer T. McGuire, Isabelle M. Cozzarelli
2013, Water Resources Research (49) 6909-6926
The temporal variability observed in redox sensitive species in groundwater can be attributed to coupled hydrological, geochemical, and microbial processes. These controlling processes are typically nonstationary, and distributed across various time scales. Therefore, the purpose of this study is to investigate biogeochemical data sets from a municipal landfill site to...
Quaternary extensional growth folding beneath Reno, Nevada, imaged by urban seismic profiling
William J. Stephenson, Roxy N. Frary, John Louie, Jackson K. Odum
2013, Bulletin of the Seismological Society of America (103) 2921-2927
We characterize shallow subsurface faulting and basin structure along a transect through heavily urbanized Reno, Nevada, with high‐resolution seismic reflection imaging. The 6.8 km of P‐wave data image the subsurface to approximately 800 m depth and delineate two subbasins and basin uplift that are consistent with structure previously inferred from...
Effect of correlated observation error on parameters, predictions, and uncertainty
Claire R. Tiedeman, Christopher T. Green
2013, Water Resources Research (49) 6339-6355
Correlations among observation errors are typically omitted when calculating observation weights for model calibration by inverse methods. We explore the effects of omitting these correlations on estimates of parameters, predictions, and uncertainties. First, we develop a new analytical expression for the difference in parameter variance estimated with and without error...
Moderate-magnitude earthquakes induced by magma reservoir inflation at Kīlauea Volcano, Hawai‘i
Christelle Wauthier, Diana C. Roman, Michael P. Poland
2013, Geophysical Research Letters (20) 5366-5370
Although volcano-tectonic (VT) earthquakes often occur in response to magma intrusion, it is rare for them to have magnitudes larger than ~M4. On 24 May 2007, two shallow M4+ earthquakes occurred beneath the upper part of the east rift zone of Kīlauea Volcano, Hawai‘i. An integrated analysis of geodetic, seismic,...
Monitoring of livestock grazing effects on Bureau of Land Management land
Kari E. Veblen, David A. Pyke, Cameron L. Aldridge, Michael L. Casazza, Timothy J. Assal, Melissa A. Farinha
2013, Society for Range Management (67) 68-77
Public land management agencies, such as the Bureau of Land Management (BLM), are charged with managing rangelands throughout the western United States for multiple uses, such as livestock grazing and conservation of sensitive species and their habitats. Monitoring of condition and trends of these rangelands, particularly with respect to effects...
Cutthroat trout virus as a surrogate in vitro infection model for testing inhibitors of hepatitis E virus replication
Yannick Debing, James Winton, Johan Neyts, Kai Dallmeier
2013, Antiviral Research (100) 98-101
Hepatitis E virus (HEV) is one of the most important causes of acute hepatitis worldwide. Although most infections are self-limiting, mortality is particularly high in pregnant women. Chronic infections can occur in transplant and other immune-compromised patients. Successful treatment of chronic hepatitis E has been reported with ribavirin and pegylated...
Influence of dissolved organic matter character on mercury incorporation by planktonic organisms: an experimental study using oligotrophic water from Patagonian lakes
Maria C. Dieguez, Claudia P. Queimalinos, Sergio Ribeiro Guevara, Mark C. Marvin-DiPasquale, Carolina Soto Cardenas, Maria A. Arribere
2013, Journal of Environmental Sciences (25) 1980-1991
Ligands present in dissolved organic matter (DOM) form complexes with inorganic divalent mercury (Hg2+) affecting its bioavailability in pelagic food webs. This investigation addresses the influence of a natural gradient of DOM present in Patagonian lakes on the bioaccumulation of Hg2+ (the prevailing mercury species in the water column of...
Analysis of a GRACE global mascon solution for Gulf of Alaska glaciers
Anthony Arendt, Scott Luthcke, Alex Gardner, Shad O’Neel, David Hill, Geir Moholdt, Waleed Abdalati
2013, Journal of Glaciology (59) 913-924
We present a high-resolution Gravity Recovery and Climate Experiment (GRACE) mascon solution for Gulf of Alaska (GOA) glaciers and compare this with in situ glaciological, climate and other remote-sensing observations. Our GRACE solution yields a GOA glacier mass balance of –65 ± 11 Gt a–1 for the period December 2003...
Degree-day accumulation influences annual variability in growth of age-0 walleye
Christopher S. Uphoff, Casey W. Schoenebeck, W. Wyatt Hoback, Keith D. Koupal, Kevin L. Pope
2013, Fisheries Research (147) 394-398
The growth of age-0 fishes influences survival, especially in temperate regions where size-dependent over-winter mortality can be substantial. Additional benefits of earlier maturation and greater fecundity may exist for faster growing individuals. This study correlated prey densities, growing-degree days, water-surface elevation, turbidity, and chlorophyll a with age-0 walleye Sander vitreus...
Runoff-generated debris flows: observations and modeling of surge initiation, magnitude, and frequency
Jason W. Kean, Scott W. McCoy, Gregory E. Tucker, Dennis M. Staley, Jeffrey A. Coe
2013, Journal of Geophysical Research F: Earth Surface (118) 2190-2207
Runoff during intense rainstorms plays a major role in generating debris flows in many alpine areas and burned steeplands. Yet compared to debris flow initiation from shallow landslides, the mechanics by which runoff generates a debris flow are less understood. To better understand debris flow initiation by surface water runoff,...
Thermal controls of Yellowstone cutthroat trout and invasive fishes under climate change
Robert K. Al-Chokhachy, Jay R. Alder, Steven W. Hostetler, Robert E. Gresswell, Bradley Shepard
2013, Global Change Biology (19) 3069-3081
We combine large observed data sets and dynamically downscaled climate data to explore historic and future (2050–2069) stream temperature changes over the topographically diverse Greater Yellowstone Ecosystem (elevation range = 824–4017 m). We link future stream temperatures with fish growth models to investigate how changing thermal regimes could influence the future distribution and...
The role of irrigation runoff and winter rainfall on dissolved organic carbon loads in an agricultural watershed
Neung-Hwan Oh, Brian A. Pellerin, Philip Bachand, Peter J. Hernes, Sandra M. Bachand, Noriaki Ohara, M. Levent Kavvas, Brian A. Bergamaschi, William R. Horwath
2013, Agriculture, Ecosystems and Environment 1-10
We investigated the role of land use/land cover and agriculture practices on stream dissolved organic carbon (DOC) dynamics in the Willow Slough watershed (WSW) from 2006 to 2008. The 415 km2watershed in the northern Central Valley, California is covered by 31% of native vegetation and the remaining 69% of agricultural fields...
Nature's refineries — Metals and metalloids in arc volcanoes
R.W. Henley, Byron R. Berger
2013, Earth-Science Reviews (125) 146-170
Chemical data for fumaroles and for atmospheric gas and ash plumes from active arc volcanoes provide glimpses of the rates of release of metal and metalloids, such as Tl and Cd, from shallow and mid-crust magmas. Data from copper deposits formed in ancient volcanoes at depths of up to...
Experimental removal of woody vegetation does not increase nesting success or fledgling production in two grassland sparrows (Ammodramus) in Pennsylvania
Jason M. Hill, Duane R. Diefenbach
2013, The Auk (130) 764-773
The influence of vegetation structure on the probability of daily nest survival (DNS) for grassland passerines has received considerable attention. Some correlative studies suggest that the presence of woody vegetation lowers DNS. Over 3 years (2009–2011), we monitored 215 nests of the Grasshopper Sparrow (Ammodramus savannarum) and Henslow's Sparrow (A....
First records of Nocomis biguttatus (Hornyhead Chub) from West Virginia discovered in museum voucher specimens
Stuart A. Welsh, Daniel A. Cincotta, Wayne C. Starnes
2013, Northeastern Naturalist (20) N19-N22
Specimens of Nocomis biguttatus (Hornyhead Chub) from South Fork Hughes River (Little Kanawha River drainage, WV) were discovered in two museum lots at the North Carolina Museum of Natural Sciences. These accessions, collected in 1960 and 1966, represent an addition to the state fauna and are the first...
A GIS and statistical approach to identify variables that control water quality in hydrothermally altered and mineralized watersheds, Silverton, Colorado, USA
Douglas B. Yager, Raymond H. Johnson, Barnaby W. Rockwell, Jonathan S. Caine, Kathleen S. Smith
2013, Environmental Earth Sciences (70) 1057-1082
Hydrothermally altered bedrock in the Silverton mining area, southwest Colorado, USA, contains sulfide minerals that weather to produce acidic and metal-rich leachate that is toxic to aquatic life. This study utilized a geographic information system (GIS) and statistical approach to identify watershed-scale geologic variables in the Silverton area that influence...
Geomorphic and human influence on large-scale coastal change
Cheryl J. Hapke, Meredith G. Kratzmann, Emily A. Himmelstoss
2013, Geomorphology (199) 160-170
An increasing need exists for regional-scale measurements of shoreline change to aid in management and planning decisions over a broad portion of the coast and to inform assessments of coastal vulnerabilities and hazards. A recent dataset of regional shoreline change, covering a large portion of the U.S. East coast...
Documenting utility of paddlefish otoliths for quantification of metals using inductively coupled plasma mass spectrometry
James M. Long, James J. Schaffler
2013, Rapid Communications in Mass Spectrometry (27) 2188-2194
RATIONALE The otoliths of the inner ear of fishes record the environment of their surrounding water throughout their life. For paddlefish (Polyodon spathula), otoliths have not been routinely used by scientists since their detriments were outlined in the early 1940s. We sought to determine if paddlefish otoliths were...
Complex resistivity signatures of ethanol biodegradation in porous media
Yves Robert Personna, Lee Slater, Dimitrios Ntarlagiannis, Dale D. Werkema, Zoltan Szabo
2013, Journal of Contaminant Hydrology (153) 37-50
Numerous adverse effects are associated with the accidental release of ethanol (EtOH) and its persistence in the subsurface. Geophysical techniques may permit non-invasive, real time monitoring of microbial degradation of hydrocarbon. We performed complex resistivity (CR) measurements in conjunction with geochemical data analysis on three microbial-stimulated and two control columns...
Spatial and temporal variation in efficiency of the Moore egg collector
Thomas A. Worthington, Shannon K. Brewer, Nicole Farless
2013, North American Journal of Fisheries Management (33) 1113-1118
The Moore egg collector (MEC) was developed for quantitative and nondestructive capture of semibuoyant fish eggs. Previous studies have indicated that capture efficiency of the MEC was low and the use of one device did not adequately represent the spatial distribution within the water column of egg surrogates (gellan beads)...
Overview of the magnetic signatures of the Palaeoproterozoic Rustenburg Layered Suite, Bushveld Complex, South Africa
Janine Cole, Carol A. Finn, Susan J. Webb
2013, Precambrian Research (236) 193-213
Aeromagnetic data clearly delineate the mafic rocks of the economically significant Bushveld Igneous Complex. This is mainly due to the abundance of magnetite in the Upper Zone of the Rustenburg Layered Suite of the Bushveld, but strongly remanently magnetised rocks in the Main Zone also contribute significantly in places....
Book review: Conservation, ecology, and management of catfish: The second international symposium
James M. Long
2013, Fisheries (38) 462
This is the second publication in a series published by the American Fisheries Society devoted to catfish research, biology, and management, which was organized as a symposium held in St. Louis Missouri, in 2010 and builds upon the first symposium that was held in Davenport, Iowa, in 1998 (Irwin et...
Links between riparian landcover, instream environment and fish assemblages in headwater streams of south-eastern Brazil
Bruna B. Cruz, Leandro E. Miranda, Mauricio Cetra
2013, Ecology of Freshwater Fish (22) 607-616
We hypothesised and tested a hierarchical organisation model where riparian landcover would influence bank composition and light availability, which in turn would influence instream environments and control fish assemblages. The study was conducted during the dry season in 11 headwater tributaries of the Sorocaba River in the upper Paraná River...
The origin of conodonts and of vertebrate mineralized skeletons
Duncan J.E. Murdock, Xi-Ping Dong, John E. Repetski, Federica Marone, Marco Stampanoni, Philip C.J. Donoghue
2013, Nature (502) 546-549
Conodonts are an extinct group of jawless vertebrates whose tooth-like elements are the earliest instance of a mineralized skeleton in the vertebrate lineage, inspiring the ‘inside-out’ hypothesis that teeth evolved independently of the vertebrate dermal skeleton and before the origin of jaws. However, these propositions have been based on evidence...
