Edward F. Roseman, Robin L. DeBruyne
2015, Restoration Ecology (23) 43-45
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateJoshua W. Kasper, Judith M. Denver, Joanna K. York
2015, Journal of Environmental Quality (44) 642-654
Suburban land use is expanding in many parts of the United States and there is a need to better understand the potential water-quality impacts of this change. This study characterized groundwater quality in a sandy, water-table aquifer influenced by suburban development and compared the results to known patterns in water...
Pardhasaradhi G. Teluguntla, Prasad S. Thenkabail, Jun Xiong, Murali Krishna Gumma, Chandra Giri, Cristina Milesi, Mutlu Ozdogan, Russ Congalton, James Tilton, Temuulen Tsagaan Sankey, Richard Massey, Aparna Phalke, Kamini Yadav
2015, Book chapter, Land resources: monitoring, modelling, and mapping
The precise estimation of the global agricultural cropland- extents, areas, geographic locations, crop types, cropping intensities, and their watering methods (irrigated or rainfed; type of irrigation) provides a critical scientific basis for the development of water and food security policies (Thenkabail et al., 2012, 2011, 2010). By year 2100, the...
Jesper Madsen, Matthieu Guillemain, Szabolcs Nagy, Pierre Defos du Rau, Jean-Yves Mondain-Monval, Cy Griffin, James Henty Williams, Nils Bunnefeld, Alexandre Czajkowski, Richard Hearn, Andreas Grauer, Mikko Alhainen, Angus Middleton, Fred A. Johnson
2015, Report
The EU Birds Directive and the African-Eurasian Waterbird Agreement provide an adequate legal framework for sustainable management of migratory waterbird populations. The main shortcoming of both instruments is that it leaves harvest decisions of a shared resource to individual Member States and Contracting Parties without providing a shared information base...
L. David Mech, Douglas W. Smith, Daniel R. MacNulty
2015, Book
The interactions between apex predators and their prey are some of the most awesome and meaningful in nature—displays of strength, endurance, and a deep coevolutionary history. And there is perhaps no apex predator more impressive and important in its hunting—or more infamous, more misjudged—than the wolf. Because of wolves’ habitat,...
Catherine S. Jarnevich, Nicholas E. Young
R.C Venette, editor(s)
2015, Book chapter, Pest Risk Modelling and Mapping for Invasive Alien Species
MAXENT is a software package used to relate known species occurrences to information describing the environment, such as climate, topography, anthropogenic features or soil data, and forecast the presence or absence of a species at unsampled locations. This particular method is one of the most popular species distribution modelling techniques...
Leslie A. Richardson, Christopher Huber, Zhi-Liang Zhu, Lynne Koontz
2015, Natural Resource Report NPS/NRSS/EQD/NRR-2014/880
Lands managed by the National Park Service (NPS) provide a wide range of beneficial services to the American public. This study quantifies the ecosystem service value of carbon sequestration in terrestrial ecosystems within NPS units in the conterminous United States for which data were available. Combining annual net carbon balance...
Ronald C. Antweiler
2015, Environmental Science & Technology (49) 13439-13446
The main classes of statistical treatments that have been used to determine if two groups of censored environmental data arise from the same distribution are substitution methods, maximum likelihood (MLE) techniques, and nonparametric methods. These treatments along with using all instrument-generated data (IN), even those less than the detection limit,...
Soumyajit Mukherjee
2015, Book chapter
Brittle shear zones/fault zones are usually defined by curved brittle P-planes bound by usually straight Y-planes. These shears may affect as a narrow zone within the rock bodies. Brittle sheared lenses of rocks vary in geometry, and the P-planes may curve only near the Y-planes. Fault gouge zones sometimes contain...
Brian D Gara, Martin A. Stapanian
2015, Ecological Indicators (50) 225-232
Indices of biological integrity of wetlands based on vascular plants (VIBIs) have been developed in many areas of the USA and are used in some states to make critical management decisions. An underlying concept of all VIBIs is that they respond negatively to disturbance. The Ohio VIBI (OVIBI) is calculated...
Matthias Gehre, Julian Renpenning, Tetyana Gilevska, Haiping Qi, Tyler B. Coplen, Harro A.J. Meijer, Willi A. Brand, Arndt Schimmelmann
2015, Analytical Chemistry (87) 5198-5205
The high temperature conversion (HTC) technique using an elemental analyzer with a glassy carbon tube and filling (temperature conversion/elemental analysis, TC/EA) is a widely used method for hydrogen isotopic analysis of water and many solid and liquid organic samples with analysis by isotope-ratio mass spectrometry (IRMS). However, the TC/EA IRMS...
Aradhna K. Tripati, Pamela S. Hill, Robert A. Eagle, Jed L. Mosenfelder, Jianwu Tang, Edwin A. Schauble, John M. Eiler, Richard E. Zeebe, Joji Uchikawa, Tyler B. Coplen, Justin B. Ries, Drew Henry
2015, Geochimica et Cosmochimica Acta (166) 344-371
“Clumped-isotope” thermometry is an emerging tool to probe the temperature history of surface and subsurface environments based on measurements of the proportion of 13C and 18O isotopes bound to each other within carbonate minerals in 13C18O16O22- groups (heavy isotope “clumps”). Although most clumped isotope geothermometry implicitly presumes carbonate crystals have attained...
Susannah O. Erwin, Robert B. Jacobson
2015, Conference Paper, Proceedings of the joint federal interagency conference 2015: Proceedings of papers of the 5th federal interagency hydrologic modeling conference and the 10th federal interagency sedimentation conference (Proceedings of the 3rd joint federal interagency conference on sedimentation and hydrologic modeling)
Larval drift is a critical phase of ontogeny for many species of lotic fishes. Downstream advection and dispersion of drifting larvae or eggs is controlled by the complex interaction of flow regime, channel planform, local channel morphology, and the resulting hydraulic gradients. In many regulated rivers, channel engineering and perturbations...
Nina T. Harun, David L. LePain, Rebekah Tsigonis, Kenneth P. Helmold, Richard G. Stanley
2015, Report
The Alaska Division of Geological & Geophysical Surveys (DGGS) conducted fieldwork during the summer of 2014 in the Susitna basin as part of an ongoing evaluation of the hydrocarbon potential of frontier basins, particularly those near the Railbelt region (for example, Decker and others, 2013; Gillis and others, 2013). Topical...
Daniel J. Dembkowski, D.W. Willis, B. G. Blackwell, Steven R. Chipps, T. D. Bacula, M.R. Wuellner
2015, North American Journal of Fisheries Management (35) 736-747
We estimated the influence of predation by Smallmouth Bass Micropterus dolomieu on recruitment of age-0 Yellow Perch Perca flavescens in two northeastern South Dakota glacial lakes. We estimated a likely range in consumption of age-0 Yellow Perch using Smallmouth Bass diet information from two time periods when age-0 Yellow Perch...
Kyle R. Anderson, Michael P. Poland, Jessica H. Johnson, Asta Miklius
Rebecca Carey, Valerie Cayol, Michael P. Poland, Dominique Weis, editor(s)
2015, Book chapter, Hawaiian volcanoes: From source to surface
Episodic variations in magma pressures and flow rates at Kīlauea Volcano, defined by a characteristic temporal evolution and termed deflation-inflation (DI) events, have been observed since at least the 1990s. DI events consist of transient, days-long deflations and subsequent reinflations of the summit region, accompanied since 2008 by fluctuations in...
Charles B. Yackulic, James D. Nichols, Janice Reid, Ricky Der
2015, Ecology (96) 16-23
Ecologists frequently try to predict the future geographic distributions of species. Most studies assume that the current distribution of a species reflects its environmental requirements (i.e., the species' niche). However, the current distributions of many species are unlikely to be at equilibrium with the current distribution of environmental conditions, both...
Leandro E. Miranda, J. M. Bies, D. A. Hann
2015, Marine and Freshwater Research (66) 526-534
Inputs of nutrients, sediments and detritus from catchments can promote selected components of reservoir fish assemblages, while hindering others. However, investigations linking these catchment subsidies to fish assemblages have generally focussed on one or a handful of species. Considering this paucity of community-level awareness, we sought to explore the association...
Sanjay Mohanty, Mark Bulicek, David W. Metge, Ronald W. Harvey, Joseph N. Ryan, Alexandria B. Boehm
2015, Vadose Zone Journal (14)
Pathogens or biocolloids mobilized in the vadose zone may consequently contaminate groundwater. We found that microspheres were mobilized from a fractured soil during intermittent rainfall and the mobilization was greater when the microsphere size was larger and when the soil had greater water permeability.The vadose zone filters pathogenic microbes from...
Ricardo Gonzalez-Pinzon, Adam S Ward, Christine E Hatch, Adam N. Wlostowski, Kamini Singha, Michael N. Gooseff, Roy Haggerty, Judson Harvey, Olaf A Cirpka, James T Brock
2015, Freshwater Science (34) 139-160
Groundwater–surface-water (GW-SW) interactions in streams are difficult to quantify because of heterogeneity in hydraulic and reactive processes across a range of spatial and temporal scales. The challenge of quantifying these interactions has led to the development of several techniques, from centimeter-scale probes to whole-system tracers, including chemical, thermal, and electrical...
Jeffrey J. McGuire, Rowena B. Lohman, Rufus D. Catchings, Michael J. Rymer, Mark R. Goldman
2015, Journal of Geophysical Research (120) 2600-2615
The Salton Sea Geothermal Field is one of the most geothermally and seismically active areas in California and presents an opportunity to study the effect of high-temperature metamorphism on the properties of seismogenic faults. The area includes numerous active tectonic faults that have recently been imaged with active source seismic...
Cliff D. Taylor, Stuart A. Giles
2015, Open-File Report 2013-1280-K
The presence of Neoproterozoic through Cambrian, continental, siliciclastic sedimentary rocks interbedded with dolomitic carbonates, shales, and glacial tillites similar to the Katanga Supergroup host rocks of the Central African Copperbelt and other sediment-hosted copper-bearing Proterozoic sequences worldwide, is first order criteria for consideration of the Neoproterozoic units of the Taoudeni...
Jeffrey L. Mauk
2015, Open-File Report 2013-1280-J
Although Mississippi Valley-type (MVT) deposits have not been recognized in Mauritania there are permissive tracts for these deposits in the regionally extensive Proterozoic carbonate rocks of the Taoudeni Basin. Permissive tracts for undiscovered MVT Pb-Zn-Ag deposits in the Proterozoic carbonate units are supported by the occurrences of MVT mineral and...
Nicole Kinsman, Ann E. Gibbs, Matt Nolan
2015, Conference Paper, Proceedings of the Coastal Sediments 2015
For extensive and remote coastlines, the absence of high-quality elevation models—for example, those produced with lidar—leaves some coastal populations lacking one of the essential elements for mapping shoreline positions or flood extents. Here, we compare seven different elevation products in a lowlying area in western Alaska to establish their appropriateness...
Cliff D. Taylor, Stuart A. Giles
2015, Open-File Report 2013-1280-L
Potential for base- and precious-metal-bearing volcanogenic massive sulfide deposits (VMS) exists in Mauritania in the greenstone belts of the southwestern Rgueïbat Shield and in the allochthonous portions of the central and southern Mauritanides. Additional potential exists for VMS deposits within the Tiris Complex of the central Rgueïbat Shield. Volcanosedimentary successions...