Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

165626 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 1045, results 26101 - 26125

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Mapping changing distributions of dominant species in oil-contaminated salt marshes of Louisiana using imaging spectroscopy
Michael Beland, Dar A. Roberts, Seth H. Peterson, Trent W. Biggs, Raymond F. Kokaly, Sarai Piazza, Keely L. Roth, Shruti Khanna, Susan L. Ustin
2016, Remote Sensing of Environment (182) 192-207
The April 2010 Deepwater Horizon (DWH) oil spill was the largest coastal spill in U.S. history. Monitoring subsequent change in marsh plant community distributions is critical to assess ecosystem impacts and to establish future coastal management priorities. Strategically deployed airborne imaging spectrometers, like the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS),...
Shale gas development effects on the songbird community in a central Appalachian forest
Laura S. Farwell, Petra Wood, James Sheehan, Gregory A. George
2016, Biological Conservation (201) 78-91
In the last decade, unconventional drilling for natural gas from the Marcellus-Utica shale has increased exponentially in the central Appalachians. This heavily forested region contains important breeding habitat for many neotropical migratory songbirds, including several species of conservation concern. Our goal was to examine effects of unconventional gas development on...
A revision in hydrogen isotopic composition of USGS42 and USGS43 human-hair stable isotopic reference materials for forensic science
Tyler B. Coplen, Haiping Qi
2016, Forensic Science International (266) 222-225
The hydrogen isotopic composition (δ2HVSMOW-SLAP) of USGS42 and USGS43 human hair stable isotopic reference materials, normalized to the VSMOW (Vienna-Standard Mean Ocean Water)–SLAP (Standard Light Antarctic Precipitation) scale, was originally determined with a high temperature conversion technique using an elemental analyzer (TC/EA) with a glassy carbon tube and glassy carbon...
Accommodation space in a high-wave-energy inner-shelf during the Holocene marine transgression: Correlation of onshore and offshore inner-shelf deposits (0–12 ka) in the Columbia River littoral cell system, Washington and Oregon, USA
C. D. Peterson, D. C. Twichell, M. C. Roberts, S. Vanderburgh, Steven W. Hostetler
2016, Marine Geology (379) 140-156
The Columbia River Littoral Cell (CRLC), a high-wave-energy littoral system, extends 160 km alongshore, generally north of the large Columbia River, and 10–15 km in across-shelf distance from paleo-beach backshores to about 50 m present water depths. Onshore drill holes (19 in number and 5–35 m in subsurface depth) and offshore vibracores (33 in...
Test of a foraging-bioenergetics model to evaluate growth dynamics of endangered pallid sturgeon (Scaphirhynchus albus)
David Deslauriers, Laura B. Heironimus, Steven R. Chipps
2016, Ecological Modelling (336) 1-12
Factors affecting feeding and growth of early life stages of the federally endangered pallid sturgeon (Scaphirhynchus albus) are not fully understood, owing to their scarcity in the wild. In this study was we evaluated the performance of a combined foraging-bioenergetics model as a tool for assessing growth of age-0 pallid...
Synthesis of common management concerns associated with dam removal
Desiree D. Tullos, Mathias J. Collins, J. Ryan Bellmore, Jennifer A. Bountry, Patrick J. Connolly, Patrick B. Shafroth, Andrew C. Wilcox
2016, Journal of the American Water Resources Association (52) 1179-1206
Managers make decisions regarding if and how to remove dams in spite of uncertainty surrounding physical and ecological responses, and stakeholders often raise concerns about certain negative effects, regardless of whether or not these concerns are warranted at a particular site. We used a dam-removal science database supplemented with other...
Holocene climate changes in eastern Beringia (NW North America) – A systematic review of multi-proxy evidence
Darrell S. Kaufman, Yarrow L. Axford, Andrew C.G. Henderson, Nicolas P. McKay, W. Wyatt Oswald, Casey Saenger, R. Scott Anderson, Hannah L. Bailey, Benjamin Clegg, Konrad Gajewski, Feng Sheng Hu, Miriam C. Jones, Charly Massa, Cody C. Routson, Al Werner, Matthew J. Wooller, Zicheng Yu
2016, Quaternary Science Reviews (147) 312-339
Reconstructing climates of the past relies on a variety of evidence from a large number of sites to capture the varied features of climate and the spatial heterogeneity of climate change. This review summarizes available information from diverse Holocene paleoenvironmental records across eastern Beringia (Alaska, westernmost Canada and adjacent seas),...
Evidence for wild waterfowl origin of H7N3 influenza A virus detected in captive-reared New Jersey pheasants
Andrew M. Ramey, Mia Kim Torchetti, Rebecca L. Poulson, Deborah L. Carter, Andrew B. Reeves, Paul Link, Patrick Walther, Camille Lebarbenchon, David E. Stallknecht
2016, Archives of Virology (161) 2519-2526
In August 2014, a low-pathogenic H7N3 influenza A virus was isolated from pheasants at a New Jersey gamebird farm and hunting preserve. In this study, we use phylogenetic analyses and calculations of genetic similarity to gain inference into the genetic ancestry of this virus and to identify potential routes of...
Evaluating integration of inland bathymetry in the U.S. Geological Survey 3D Elevation Program, 2014
Cynthia Miller-Corbett
2016, Open-File Report 2016-1126
Inland bathymetry survey collections, survey data types, features, sources, availability, and the effort required to integrate inland bathymetric data into the U.S. Geological Survey 3D Elevation Program are assessed to help determine the feasibility of integrating three-dimensional water feature elevation data into The National Map. Available data from wading, acoustic,...
Factors affecting wetland connectivity for wintering semipalmated sandpipers (Calidris pusilla) in the Caribbean
Morgan A. Parks, Jaime A. Collazo, Katsi R. Ramos Alvarez
2016, Waterbirds (39) 250-259
Wetland connectivity provides migratory shorebirds varying options to meet energy requirements to survive and complete their annual cycle. Multiple factors mediate movement and residency of spatially segregated wetlands. Information on these factors is lacking in the tropics, yet such information is invaluable for conservation design. The influence of seven biotic...
Biochemical and clinical responses of Common Eiders to implanted satellite transmitters
Christopher J. Latty, Tuula E. Hollmen, Margaret R. Petersen, Abby Powell, Russel D. Andrews
2016, The Condor (118) 489-501
Implanted biologging devices, such as satellite-linked platform transmitter terminals (PTTs), have been used widely to delineate populations and identify movement patterns of sea ducks. Although in some cases these ecological studies could reveal transmitter effects on behavior and mortality, experiments conducted under controlled conditions can provide valuable information to understand...
Low survival rates of Swan Geese (Anser cygnoides) estimated from neck-collar resighting and telemetry
Chang-Yong Choi, Ki-Sup Lee, Nikolay D. Poyarkov, Jin-Young Park, Hansoo Lee, John Y. Takekawa, Lacy M. Smith, Craig R. Ely, Xin Wang, Lei Cao, Anthony D. Fox, Oleg Goroshko, Nyambaya Batbayar, Diann J. Prosser, Xiangming Xiao
2016, Waterbirds (39) 277-286
Waterbird survival rates are a key component of demographic modeling used for effective conservation of long-lived threatened species. The Swan Goose (Anser cygnoides) is globally threatened and the most vulnerable goose species endemic to East Asia due to its small and rapidly declining population. To address a current knowledge gap...
Seismo-acoustic evidence for an avalanche driven phreatic eruption through a beheaded hydrothermal system: An example from the 2012 Tongariro eruption
A.D. Jolly, P. Jousset, J.J. Lyons, R. Carniel, R. Fournier, B. Fry, C. Miller
2016, Journal of Volcanology and Geothermal Research (286) 331-347
The 6 August 2012 Te Maari eruption comprises a complex eruption sequence including multiple eruption pulses, a debris avalanche that propagated ~ 2 km from the vent, and the formation of a 500 m long, arcuate chasm, located ~ 300 m from the main eruption vent. The eruption included 6 distinct...
First steps for mitigating bycatch of Pink-footed Shearwaters Ardenna creatopus: Identifying overlap of foraging areas and fisheries in Chile
Ryan Carle, Jonathan J. Felis, Verónica López, Josh Adams, Peter Hodum, Jessie Beck, Valentina Colodro, Rodrigo Vega, Andres Gonzalez
2016, Conference Paper, Seventh Meeting of the Seabird Bycatch Working Group
The Pink-footed Shearwater, Ardenna creatopus, is listed as in danger of extinction by Chile and under Annex 1 of ACAP, with an estimated global population of approximately 56,000 individuals. Incidental bycatch of this species in fisheries is thought to be an important cause in population decline (i.e. annual estimated mortality...
Three-dimensional numerical modeling of mixing at the junction of the Calumet-Sag Channel and the Chicago Sanitary and Ship Canal: A comparison between density-driven and advection-driven mixing
Dongchen Wang, Som Dudda, P. Ryan Jackson, Marcelo H. Garcia
George Constantinescu, Marcelo H. Garcia, Dan Hanes, editor(s)
2016, Conference Paper, Proceedings of the International Conference on Fluvial Hydraulics (River Flows 2016)
The Chicago Area Waterway System (CAWS) includes the Chicago Sanitary and Ship Canal (CSSC) and the Calumet-Sag Channel (Cal-Sag), the two primary, man-made connections between the Mississippi River Basin and the Great Lakes. The U.S. Geological Survey (USGS) monitors diversion of Great Lakes water at a streamgage just downstream of...
Validation of the ASTER Global Digital Elevation Model version 3 over the conterminous United States
Dean B. Gesch, Michael J. Oimoen, Jeffrey J. Danielson, David Meyer
L Halounova, V. Safar, J. Jiang, H. Olesovska, P. Dvoracek, D. Holland, V.A. Seredovich, J.P. Muller, E. Pattabhi Rama Rao, B. Veenendaal, L. Mu, S. Zlatanova, J. Oberst, C.P. Yang, Y. Ban, S. Stylianidis, V. Vozenilek, A. Vondrakova, G. Gartner, F. Remondino, Y. Doytsher, George Percivall, G. Schreier, I. Dowman, A. Streilein, J. Ernst, editor(s)
2016, Conference Paper, Proceedings: XXIII ISPRS Congress, Commission IV (Volume XLI-B4)
The ASTER Global Digital Elevation Model Version 3 (GDEM v3) was evaluated over the conterminous United States in a manner similar to the validation conducted for the original GDEM Version 1 (v1) in 2009 and GDEM Version 2 (v2) in 2011. The absolute vertical accuracy of GDEM v3 was calculated...
Panarchy use in environmental science for risk and resilience planning
David G. Angeler, Craig R. Allen, Ahjond S. Garmestani, Lance H. Gunderson, Igor Linkov
2016, Environment Systems and Decisions (36) 225-228
Environmental sciences have an important role in informing sustainable management of built environments by providing insights about the drivers and potentially negative impacts of global environmental change. Here, we discuss panarchy theory, a multi-scale hierarchical concept that accounts for the dynamism of complex socio-ecological systems, especially for those systems with...
The water content of recurring slope lineae on Mars
Christopher S. Edwards, Sylvain Piqueux
2016, Geophysical Research Letters (43) 8912-8919
Observations of recurring slope lineae (RSL) from the High-Resolution Imaging Science Experiment have been interpreted as present-day, seasonally variable liquid water flows; however, orbital spectroscopy has not confirmed the presence of liquid H2O, only hydrated salts. Thermal Emission Imaging System (THEMIS) temperature data and a numerical heat transfer model definitively...
SNP discovery in candidate adaptive genes using exon capture in a free-ranging alpine ungulate
Gretchen H. Roffler, Stephen J. Amish, Seth Smith, Ted F. Cosart, Marty Kardos, Michael K. Schwartz, Gordon Luikart
2016, Molecular Ecology Resources (16) 1147-1164
Identification of genes underlying genomic signatures of natural selection is key to understanding adaptation to local conditions. We used targeted resequencing to identify SNP markers in 5321 candidate adaptive genes associated with known immunological, metabolic and growth functions in ovids and other ungulates. We selectively targeted 8161 exons in protein-coding...
Environmental covariates associated with Cambarus veteranus (Decapoda: Cambaridae), an imperiled Appalachian crayfish endemic to West Virginia, USA
Zachary J. Loughman, Stuart A. Welsh, Nicole M. Sadecky, Zachary W. Dillard, R. Katie Scott
2016, Journal of Crustacean Biology (36) 642-648
Cambarus veteranus Faxon, 1914, a narrow endemic crayfish native to the Upper Guyandotte River Basin (UGB) in West Virginia, USA, was petitioned in 2014 by the United States Fish and Wildlife Service to be listed as endangered, but a status survey was recommended to determine if...
Invariant polar bear habitat selection during a period of sea ice loss
Ryan H. Wilson, Eric V. Regehr, Karyn D. Rode, Michelle St. Martin
2016, Proceedings of the Royal Society B: Biological Sciences (283)
Climate change is expected to alter many species' habitat. A species' ability to adjust to these changes is partially determined by their ability to adjust habitat selection preferences to new environmental conditions. Sea ice loss has forced polar bears (Ursus maritimus) to spend longer periods annually over less productive waters,...
Chronic wasting disease drives population decline of white-tailed deer
David R. Edmunds, Matthew Kauffman, Brant Schumaker, Frederick G. Lindzey, Walter Cook, Terry J. Kreeger, Ronald Grogan, Todd Cornish
2016, PLoS ONE (11) 1-19
Chronic wasting disease (CWD) is an invariably fatal transmissible spongiform encephalopathy of white-tailed deer, mule deer, elk, and moose. Despite a 100% fatality rate, areas of high prevalence, and increasingly expanding geographic endemic areas, little is known about the population-level effects of CWD in deer. To investigate these effects, we...
Groundwater-quality data in the Monterey–Salinas shallow aquifer study unit, 2013: Results from the California GAMA Program
Dara A. Goldrath, Justin T. Kulongoski, Tracy A. Davis
2016, Data Series 987
Groundwater quality in the 3,016-square-mile Monterey–Salinas Shallow Aquifer study unit was investigated by the U.S. Geological Survey (USGS) from October 2012 to May 2013 as part of the California State Water Resources Control Board Groundwater Ambient Monitoring and Assessment (GAMA) Program’s Priority Basin Project. The GAMA Monterey–Salinas Shallow Aquifer...
Safety of the molluscicide Zequanox (R) to nontarget macroinvertebrates Gammarus lacustris (Amphipoda: Gammaridae) and Hexagenia spp. (Ephemeroptera: Ephemeridae)
Diane L. Waller, James A. Luoma, Richard A. Erickson
2016, Management of Biological Invasions (7) 269-280
Zequanox® is a commercial formulation of the killed bacterium, Pseudomonas fluorescens (strain CL145A), that was developed to control dreissenid mussels. In 2014, Zequanox became the second product registered by the United States Environmental Protection Agency (USEPA) for use in open water environments as a molluscicide. Previous nontarget studies demonstrated the...