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

165549 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 967, results 24151 - 24175

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Coping with historic drought in California rangelands: Developing a more effective institutional response
Joel R. Brown, Pelayo Alvarez, Kristin B. Byrd, Helena Deswood, Emile Elias, Sheri Spiegal
2017, Rangelands (39) 73-78
Drought response is widely varied depending on both the characteristics of the drought and the ability of individual ranchers to respond.Assistance from institutions during drought has not typically considered preemptive, during, and post-drought response as a strategic approach, which recognizes biophysical, sociological, and economic complexities of drought.A USDA Southwest Climate...
2010-2015 Juvenile fish ecology in the Nisqually River Delta and Nisqually Reach Aquatic Reserve
Sayre Hodgson, Christopher S. Ellings, Steve P. Rubin, Michael C. Hayes, Walker Duval, Eric E. Grossman
2017, Salmon Recovery Program Technical Report 2016-1
The return of tidal inundation to over 750 acres of the U. S. Fish and Wildlife Service Billy Frank Jr. Nisqually National Wildlife Refuge (NNWR) in fall of 2009 was the crowning moment in the effort to protect and restore the Nisqually Delta. The Nisqually NWR project complemented three earlier...
Inner-shelf ocean dynamics and seafloor morphologic changes during Hurricane Sandy
John C. Warner, William C. Schwab, Jeffrey H. List, Ilgar Safak, Maria Liste, Wayne E. Baldwin
2017, Continental Shelf Research (138) 1-18
Hurricane Sandy was one of the most destructive hurricanes in US history, making landfall on the New Jersey coast on Oct 30, 2012. Storm impacts included several barrier island breaches, massive coastal erosion, and flooding. While changes to the subaerial landscape are relatively easily observed, storm-induced changes to the adjacent...
Bacterial, fungal, and plant communities exhibit no biomass or compositional response to two years of simulated nitrogen deposition in a semiarid grassland
Theresa A. McHugh, Ember M. Morrissey, Rebecca C. Mueller, La Verne Gallegos-Graves, Cheryl R. Kuske, Sasha C. Reed
2017, Environmental Microbiology (19) 1600-1611
Nitrogen (N) deposition affects myriad aspects of terrestrial ecosystem structure and function, and microbial communities may be particularly sensitive to anthropogenic N inputs. However, our understanding of N deposition effects on microbial communities is far from complete, especially for drylands where data are comparatively rare. To address the need for...
Classification of California streams using combined deductive and inductive approaches: Setting the foundation for analysis of hydrologic alteration
Matthew I. Pyne, Daren M. Carlisle, Christopher P. Konrad, Eric D. Stein
2017, Ecohydrology (10)
Regional classification of streams is an early step in the Ecological Limits of Hydrologic Alteration framework. Many stream classifications are based on an inductive approach using hydrologic data from minimally disturbed basins, but this approach may underrepresent streams from heavily disturbed basins or sparsely gaged arid regions. An alternative is...
Spatiotemporal ecology of Apalone spinifera in a large, Great Plains river ecosystem
Brian J. Tornabene, Robert G. Bramblett, Alexander V. Zale, Stephen A. Leathe
2017, Herpetological Conservation and Biology (12) 252-271
Sparse information exists about the ecology of Spiny Softshell Turtles (Apalone spinifera) in large rivers, at the northwestern extent of their natural range, and in Montana, where they are disjunct from downstream populations and a State Species of Concern. We determined spatiotemporal ecology of 47 female and 12 male turtles...
Grand challenges in understanding the interplay of climate and land changes
Shuguang Liu, Ben Bond-Lamberty, Lena R. Boysen, James D. Ford, Andrew Fox, Kevin Gallo, Jerry L. Hatfield, Geoffrey M. Henebry, Thomas G. Huntington, Zhihua Liu, Thomas R. Loveland, Richard J. Norby, Terry L. Sohl, Allison L. Steiner, Wenping Yuan, Zhao Zhang, Shuqing Zhao
2017, Earth Interactions (21) 1-43
Half of Earth’s land surface has been altered by human activities, creating various consequences on the climate and weather systems at local to global scales, which in turn affect a myriad of land surface processes and the adaptation behaviors. This study reviews the status and major knowledge gaps in the...
Tree mortality across biomes is promoted by drought intensity, lower wood density and higher specific leaf area
Sarah Greenwood, Paloma Ruiz-Benito, Jordi Martínez-Vilalta, Francisco Lloret, Thomas Kitzberger, Craig D. Allen, Rod Fensham, Daniel C. Laughlin, Jens Kattge, Gerhard Bonisch, Nathan J. B. Kraft, Alistair S. Jump
2017, Ecology Letters (20) 539-553
Drought events are increasing globally, and reports of consequent forest mortality are widespread. However, due to a lack of a quantitative global synthesis, it is still not clear whether drought-induced mortality rates differ among global biomes and whether functional traits influence the risk of drought-induced mortality. To address these uncertainties,...
Multiple models guide strategies for agricultural nutrient reductions
Donald Scavia, Margaret Kalcic, Rebecca Logsdon Muenich, Jennifer Read, Noel Aloysius, Isabella Bertani, Chelsie Boles, Remegio Confesor, Joseph DePinto, Marie Gildow, Jay Martin, Todd Redder, Dale M. Robertson, Scott P. Sowa, Yu-Chen Wang, Haw Yen
2017, Frontiers in Ecology and the Environment (15) 126-132
In response to degraded water quality, federal policy makers in the US and Canada called for a 40% reduction in phosphorus (P) loads to Lake Erie, and state and provincial policy makers in the Great Lakes region set a load-reduction target for the year 2025. Here, we configured five separate...
A software tool to assess uncertainty in transient-storage model parameters using Monte Carlo simulations
Adam S. Ward, Christa A. Kelleher, Seth J. K. Mason, Thorsten Wagener, Neil McIntyre, Brian L. McGlynn, Robert L. Runkel, Robert A. Payn
2017, Freshwater Science (36) 195-217
Researchers and practitioners alike often need to understand and characterize how water and solutes move through a stream in terms of the relative importance of in-stream and near-stream storage and transport processes. In-channel and subsurface storage processes are highly variable in space and time and difficult to measure. Storage estimates...
Using diets of Canis breeding pairs to assess resource partitioning between sympatric red wolves and coyotes
Joseph W. Hinton, Annaliese K. Ashley, Justin A. Dellinger, John L. Gittleman, Frank T. van Manen, Michael J. Chamberlain
2017, Journal of Mammalogy (98) 475-488
Foraging behaviors of red wolves (Canis rufus) and coyotes (Canis latrans) are complex and their ability to form congeneric breeding pairs and hybridize further complicates our understanding of factors influencing their diets. Through scat analysis, we assessed prey selection of red wolf, coyote, and congeneric breeding pairs formed by red...
A decade of insights into grassland ecosystem responses to global environmental change
Elizabeth T. Borer, James B. Grace, W. Stanley Harpole, Andrew S. MacDougall, Eric W. Seabloom
2017, Nature Ecology & Evolution (1)
Earth’s biodiversity and carbon uptake by plants, or primary productivity, are intricately interlinked, underlie many essential ecosystem processes, and depend on the interplay among environmental factors, many of which are being changed by human activities. While ecological theory generalizes across taxa and environments, most empirical tests of factors controlling diversity...
Scale-specific habitat relationships influence patch occupancy: defining neighborhoods to optimize the effectiveness of landscape-scale grassland bird conservation
Michael Guttery, Christine Ribic, David W. Sample, Andy Paulios, Chris Trosen, John D. Dadisman, Daniel Schneider, Josephine Horton
2017, Landscape Ecology (32) 515-529
ContextBeyond the recognized importance of protecting large areas of contiguous habitat, conservation efforts for many species are complicated by the fact that patch suitability may also be affected by characteristics of the landscape within which the patch is located. Currently, little is known about the...
2016 status of the Lake Ontario Lower Trophic levels
Kristen T. Holeck, Lars G. Rudstam, Christopher Hotaling, Russ McCullough, Dave Lemon, Web Pearsall, Jana Lantry, Mike Connerton, Steve LaPan, Zy Biesinger, Brian F. Lantry, Maureen Walsh, Brian Weidel
2017, Book chapter, Annual Report Bureau of Fisheries Lake Ontario Unit and St. Lawrence River Unit to Great Lakes Fishery Commission’s Lake Ontario Committee.
Significant Findings for Year 2016: 1) Offshore spring total phosphorus (TP) in 2016 was 6.2 μg/L, higher than 2014 and 2015 (4.0 and 4.2 μg/L); there was no significant decline 2001 - 2016. Offshore soluble reactive phosphorus (SRP) was very low in 2016; Apr/May – Oct mean values were <1 μg/L....
Twenty years of water-quality studies in the Cheney Reservoir Watershed, Kansas, 1996-2016
Jennifer L. Graham, Guy M. Foster, Ariele R. Kramer
2017, Fact Sheet 2017-3019
Since 1996, the U.S. Geological Survey (USGS), in cooperation with the City of Wichita, has done studies in the Cheney Reservoir watershed to understand environmental effects on water-quality conditions. Early studies (1996–2001) determined subwatershed sources of contaminants, nutrient and sediment loading to Cheney Reservoir, changes in reservoir sediment quality over...
Occurrence of cyanobacteria, microcystin, and taste-and-odor compounds in Cheney Reservoir, Kansas, 2001-16
Jennifer L. Graham, Guy M. Foster, Thomas J. Williams, Ariele R. Kramer, Theodore D. Harris
2017, Scientific Investigations Report 2017-5016
Cheney Reservoir, located in south-central Kansas, is one of the primary drinking-water supplies for the city of Wichita and an important recreational resource. Since 1990, cyanobacterial blooms have been present occasionally in Cheney Reservoir, resulting in increased treatment costs and decreased recreational use. Cyanobacteria, the cyanotoxin microcystin, and the taste-and-odor...
Semiautomatic approaches to account for 3-D distortion of the electric field from local, near-surface structures in 3-D resistivity inversions of 3-D regional magnetotelluric data
Brian D. Rodriguez
2017, Open-File Report 2017-1007
This report summarizes the results of three-dimensional (3-D) resistivity inversion simulations that were performed to account for local 3-D distortion of the electric field in the presence of 3-D regional structure, without any a priori information on the actual 3-D distribution of the known subsurface geology. The methodology used a...
Quantifying acoustic doppler current profiler discharge uncertainty: A Monte Carlo based tool for moving-boat measurements
David S. Mueller
2017, Conference Paper, Journal of Hydraulic Engineering
This paper presents a method using Monte Carlo simulations for assessing uncertainty of moving-boat acoustic Doppler current profiler (ADCP) discharge measurements using a software tool known as QUant, which was developed for this purpose. Analysis was performed on 10 data sets from four Water Survey of Canada gauging...
Long-term spatial heterogeneity in mallard distribution in the Prairie pothole region
Adam K. Janke, Michael J. Anteau, Joshua D. Stafford
2017, Wildlife Society Bulletin (41) 116-124
The Prairie Pothole Region (PPR) of north-central United States and south-central Canada supports greater than half of all breeding mallards (Anas platyrhynchos) annually counted in North America and is the focus of widespread conservation and research efforts. Allocation of conservation resources for this socioeconomically important population would benefit from an...
A model integrating longshore and cross-shore processes for predicting long-term shoreline response to climate change
Sean Vitousek, Patrick L. Barnard, Patrick W. Limber, Li H. Erikson, Blake Cole
2017, Journal of Geophysical Research F: Earth Surface (122) 782-806
We present a shoreline change model for coastal hazard assessment and management planning. The model, CoSMoS-COAST (Coastal One-line Assimilated Simulation Tool), is a transect-based, one-line model that predicts short-term and long-term shoreline response to climate change in the 21st century. The proposed model represents a novel, modular synthesis of process-based...
U.S. Geological Survey distribution of European Space Agency's Sentinel-2 data
Renee L. Pieschke
2017, Fact Sheet 2017-3026
A partnership established between the European Space Agency (ESA) and the U.S. Geological Survey (USGS) allows for USGS storage and redistribution of images acquired by the MultiSpectral Instrument (MSI) on the European Union's Sentinel-2 satellite mission. The MSI data are acquired from a pair of satellites, Sentinel-2A and Sentinel-2B, which...
Reconnaissance sedimentology of selected tertiary exposures in the upland region bordering the Yukon Flats basin, east-central Alaska
David L. LePain, Richard G. Stanley
2017, Preliminary Interpretive Report 2016-6
This report summarizes reconnaissance sedimentologic and stratigraphic observations made during six days of helicopter-supported fieldwork in 2002 on Tertiary sedimentary rocks exposed in the upland region around the flanks of the Yukon Flats basin in east-central Alaska (fig. 1). This project was a cooperative effort between the Alaska Division of...
A global threats overview for Numeniini populations: synthesising expert knowledge for a group of declining migratory birds.
James W. Pearce-Higgins, Daniel J. Brown, David J.T. Douglas, José A. Alves, Mariagrazia Bellio, Pierrick Bocher, Graeme M. Buchannan, Rob Clay, Jesse R. Conklin, Nicola Crockford, Peter Dann, Jaanus Elts, Christian Friis, Richard A. Fuller, Jennifer A. Gill, Ken Gosbell, James A. Johnson, Rocio Marquez-Ferrando, Jose A. Masero, David S. Melville, Spike Millington, Clive Minton, Taej Mundkur, Erika Nol, Hannes Pehlak, Theunis Piersma, Danny I. Rogers, Daniel R. Ruthrauff, Nathan R. Senner, Junid Nazeer Shah, Rob D. Sheldon, Sergej A. Soloviev, Pavel S. Tomkovich, Yvonne I. Verkuil
2017, Bird Conservation International (27) 6-34
The Numeniini is a tribe of 13 wader species (Scolopacidae, Charadriiformes) of which seven are Near Threatened or globally threatened, including two Critically Endangered. To help inform conservation management and policy responses, we present the results of an expert assessment of the threats that members of this taxonomic group face...
Five-year external reviews of the eight Department of Interior Climate Science Centers: Alaska Climate Science Center
Mark Shasby, C. Andrew Dolloff, Jeffrey A. Hicke, Bruce G. Marcot, Bruce McCarl, Gerard McMahon, John M. Morton
2017, Report
This report primarily addresses the first two purposes of the review while providing comments on the third as identified by the science review team (SRT). A separate report of recommendations for the recompetition, based upon compiled observation from all three reviews conducted in 2016, was submitted to NCCWSC on April...