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Page 381, results 9501 - 9525

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Observations and 3D hydrodynamics-based modeling of decadal-scale shoreline change along the Outer Banks, North Carolina
Ilgar Safak, Jeffrey H. List, John C. Warner, Nirnimesh Kumar
2017, Coastal Engineering (120) 78-92
Long-term decadal-scale shoreline change is an important parameter for quantifying the stability of coastal systems. The decadal-scale coastal change is controlled by processes that occur on short time scales (such as storms) and long-term processes (such as prevailing waves). The ability to predict decadal-scale shoreline change is not well established...
Summary of hydrologic conditions in Kansas, water year 2016
Justin M. Louen
2017, Fact Sheet 2017-3020
The U.S. Geological Survey (USGS), in cooperation with Federal, State, and local agencies, maintains a long-term network of hydrologic monitoring sites in Kansas. Real-time data are collected at 216 streamgage sites and are verified throughout the year with regular measurements of streamflow made by USGS personnel. Annual assessments of hydrologic...
Acute sensitivity of the vernal pool fairy shrimp, Branchinecta lynchi (Anostraca; Branchinectidae), and surrogate species to 10 chemicals
Chris D. Ivey, John M. Besser, Christopher G. Ingersoll, Ning Wang, D. Christopher Rogers, Sandy Raimondo, Candice R. Bauer, Edward J. Hammer
2017, Environmental Toxicology and Chemistry (36) 797-806
Vernal pool fairy shrimp, Branchinecta lynchi, (Branchiopoda; Anostraca) and other fairy shrimp species have been listed as threatened or endangered under the US Endangered Species Act. Because few data exist about the sensitivity of Branchinecta spp. to toxic effects of contaminants, it is difficult to determine whether they are adequately...
Legacy introductions and climatic variation explain spatiotemporal patterns of invasive hybridization in a native trout
Clint C. Muhlfeld, Ryan P. Kovach, Robert K. Al-Chokhachy, Stephen J. Amish, Jeffrey L. Kershner, Robb F. Leary, Winsor H. Lowe, Gordon Luikart, Phil Matson, David A. Schmetterling, Bradley B. Shepard, Peter A. H. Westley, Diane Whited, Andrew R. Whiteley, Fred W. Allendorf
2017, Global Change Biology (23) 4663-4674
Hybridization between invasive and native species, a significant threat to worldwide biodiversity, is predicted to increase due to climate-induced expansions of invasive species. Long-term research and monitoring are crucial for understanding the ecological and evolutionary processes that modulate the effects of invasive species. Using a large, multi-decade genetics dataset (N...
Brackish groundwater in the United States
Jennifer S. Stanton, David W. Anning, Craig J. Brown, Richard B. Moore, Virginia L. McGuire, Sharon L. Qi, Alta C. Harris, Kevin F. Dennehy, Peter B. McMahon, James R. Degnan, John Karl Bohlke
2017, Professional Paper 1833
For some parts of the Nation, large-scale development of groundwater has caused decreases in the amount of groundwater that is present in aquifer storage and that discharges to surface-water bodies. Water supply in some areas, particularly in arid and semiarid regions, is not adequate to meet demand, and...
The logic of selecting an appropriate map projection in a Decision Support System (DSS)
Michael P. Finn, E. Lynn Usery, Laura N. Woodard, Kristina H. Yamamoto
2017, Book chapter, Choosing a Map Projection
There are undeniable practical consequences to consider when choosing an appropriate map projection for a specific region. The surface of a globe covered by global, continental, and regional maps are so singular that each type distinctively affects the amount of distortion incurred during a projection transformation because of the an...
Water-quality trends in the nation’s rivers and streams, 1972–2012—Data preparation, statistical methods, and trend results
Gretchen P. Oelsner, Lori A. Sprague, Jennifer C. Murphy, Robert E. Zuellig, Henry M. Johnson, Karen R. Ryberg, James A. Falcone, Edward G. Stets, Aldo V. Vecchia, Melissa L. Riskin, Laura A. De Cicco, Taylor J. Mills, William H. Farmer
2017, Scientific Investigations Report 2017-5006
Since passage of the Clean Water Act in 1972, Federal, State, and local governments have invested billions of dollars to reduce pollution entering rivers and streams. To understand the return on these investments and to effectively manage and protect the Nation’s water resources in the future, we need to know...
The Beringian coevolution project: Holistic collections of mammals and associated parasites reveal novel perspectives on evolutionary and environmental change in the North
Joseph A. Cook, Kurt E. Galbreath, Mariel Campbell, Susanne Carriere, Jocelyn P. Colella, Natalie G. Dawson, Jonathan L. Dunnum, Ralph P. Eckerlin, Stephen E. Greiman, Vadim B. Fedorov, Genevieve M. S. Haas, Voitto Haukisalmi, Heikki Henttonen, Andrew G. Hope, Donavan Jackson, Tom Jung, Anson V. Koehler, John M. Kinsella, Dianna Krejsa, Susan J. Kutz, Schuyler Liphardt, Stephen O. MacDonald, Jason L. Malaney, Arseny Makarikov, Jon Martin, Bryan S. McLean, Robert Mulders, Batsaikhan Nyamsuren, Sandra L. Talbot, Vasyl V. Tkach, Albina Tsvetkova, Heather M. Toman, Eric C. Waltari, Jackson S. Whitman, Eric P. Hoberg
2017, Arctic Science (3) 585-617
The Beringian Coevolution Project (BCP), a field program underway in the high northern latitudes since 1999, has focused on building key scientific infrastructure for integrated specimen-based studies on mammals and their associated parasites. BCP has contributed new insights across temporal and spatial scales into how ancient climate and environmental change...
Coastal river plumes: Collisions and coalescence
Jonathan A. Warrick, Katherine L Farnsworth
2017, Progress in Oceanography (151) 245-260
Plumes of buoyant river water spread in the ocean from river mouths, and these plumes influence water quality, sediment dispersal, primary productivity, and circulation along the world’s coasts. Most investigations of river plumes have focused on large rivers in a coastal region, for which the...
Ecosystem services in the Great Lakes
Alan D. Steinman, Bradley J. Cardinale, Wayne R. Munns Jr., Mary E. Ogdahl, David J. Allan, Ted Angadi, Sarah Bartlett, Kate A. Brauman, Muruleedhara Byappanahalli, Matt Doss, Diane Dupont, Annie Johns, Donna Kashian, Frank Lupi, Peter B. McIntyre, Todd Miller, Michael P. Moore, Rebecca Logsdon Muenich, Rajendra Poudel, James Price, Bill Provencher, Anne Rea, Jennifer Read, Steven Renzetti, Brent Sohngen, Erica Washburn
2017, Journal of Great Lakes Research (43) 161-168
A comprehensive inventory of ecosystem services across the entire Great Lakes basin is currently lacking and is needed to make informed management decisions. A greater appreciation and understanding of ecosystem services, including both use and non-use services, may have avoided misguided resource management decisions in the past that resulted in...
Baseline coastal oblique aerial photographs collected from Dauphin Island, Alabama, to Breton Island, Louisiana, June 9, 2011
Karen L. M. Morgan
2017, Data Series 1044
The U.S. Geological Survey (USGS), as part of the National Assessment of Storm-Induced Coastal Change Hazards project, conducts baseline and storm-response photography missions to document and understand the changes in vulnerability of the Nation's coasts to extreme storms. On June 9, 2011, the USGS conducted an oblique aerial...
Post-Hurricane Katrina coastal oblique aerial photographs collected from Panama City, Florida, to Lakeshore, Mississippi, and the Chandeleur Islands, Louisiana, August 31, 2005
Karen L. M. Morgan, Nancy T. DeWitt
2017, Data Series 1033
The U.S. Geological Survey (USGS), as part of the National Assessment of Storm-Induced Coastal Change Hazards project, conducts baseline and storm-response photography missions to document and understand the changes in vulnerability of the Nation's coasts to extreme storms. On August 31, 2005, the USGS conducted an oblique aerial...
Terrestrial–aquatic linkages in spring-fed and snowmelt-dominated streams
Adam J. Sepulveda
2017, Journal of Freshwater Ecology (32) 288-299
The importance of trophic linkages between aquatic and terrestrial ecosystems is predicted to vary as a function of subsidy quantity and quality relative to in situ resources. To test this prediction, I used multi-year diet data from Bonneville cutthroat trout Oncorhynchus clarki Utah in spring-fed and snowmelt-driven streams in the...
An integrated population model for bird monitoring in North America
Farshid S. Ahrestani, James F. Saracco, John R. Sauer, Keith L. Pardieck, J. Andrew Royle
2017, Ecological Applications (27) 916-924
Integrated population models (IPMs) provide a unified framework for simultaneously analyzing data sets of different types to estimate vital rates, population size, and dynamics; assess contributions of demographic parameters to population changes; and assess population viability. Strengths of an IPM include the ability to estimate latent parameters and improve the...
Trends in snowmelt-related streamflow timing in the conterminous United States
Robert W. Dudley, Glenn A. Hodgkins, Michael McHale, Michael J. Kolian, Benjamin Renard
2017, Journal of Hydrology (547) 208-221
Changes in snowmelt-related streamflow timing have implications for water availability and use as well as ecologically relevant shifts in streamflow. Historical trends in snowmelt-related streamflow timing (winter-spring center volume date, WSCVD) were computed for minimally disturbed river basins in the conterminous United States. WSCVD was computed by summing daily streamflow...
Global nonfuel mineral exploration trends 2001-2015
Nick A Karl, David R. Wilburn
2017, Mining Engineering (69) 30-37
This review summarizes significant exploration trends related to active sites and budgets, mineral commodities and regional factors for the years 2001-2015. Data were compiled by specialists in the USGS-NMIC, and reported annually in the USGS-NMIC Minerals Yearbook series and in the May issue of Mining Engineering magazine. External data for...
Automated cropland mapping of continental Africa using Google Earth Engine cloud computing
Jun Xiong, Prasad S. Thenkabail, Murali Krishna Gumma, Pardhasaradhi G. Teluguntla, Justin Poehnelt, Russell G. Congalton, Kamini Yadav, David Thau
2017, ISPRS Journal of Photogrammetry and Remote Sensing (126) 225-244
The automation of agricultural mapping using satellite-derived remotely sensed data remains a challenge in Africa because of the heterogeneous and fragmental landscape, complex crop cycles, and limited access to local knowledge. Currently, consistent, continent-wide routine cropland mapping of Africa does not exist, with most studies focused either on certain portions...
Seasonal survival of adult female mottled ducks
Jena A. Moon, David A. Haukos, Warren C. Conway
2017, Journal of Wildlife Management (81) 461-469
The mottled duck (Anas fulgivula) is a non-migratory duck dependent on coastal habitats to meet all of its life cycle requirements in the Western Gulf Coast (WGC) of Texas and Louisiana, USA. This population of mottled ducks has experienced a moderate decline during the past 2 decades. Adult survival has...
Estimating occupancy probability of moose using hunter survey data
Nathan J. Crum, Angela K. Fuller, Christopher S. Sutherland, Evan G. Cooch, Jeremy E. Hurst
2017, Journal of Wildlife Management (81) 521-534
Monitoring rare species can be difficult, especially across large spatial extents, making conventional methods of population monitoring costly and logistically challenging. Citizen science has the potential to produce observational data across large areas that can be used to monitor wildlife distributions using occupancy models. We used citizen science (i.e., hunter...
From data to decisions: Processing information, biases, and beliefs for improved management of natural resources and environments
Pierre D. Glynn, Alexey A. Voinov, Carl D. Shapiro, Paul A. White
2017, Earth's Future (5) 356-378
Our different kinds of minds and types of thinking affect the ways we decide, take action, and cooperate (or not). Derived from these types of minds, innate biases, beliefs, heuristics, and values (BBHV) influence behaviors, often beneficially, when individuals or small groups face immediate, local, acute situations that they and...
Urbanization may limit impacts of an invasive predator on native mammal diversity
Brian E. Reichert, Adia R. Sovie, Brad J. Udell, Kristen M. Hart, Rena R. Borkhataria, Mathieu Bonneau, Robert Reed, Robert A. McCleery
2017, Diversity and Distributions (23) 355-367
AimOur understanding of the effects of invasive species on faunal diversity is limited in part because invasions often occur in modified landscapes where other drivers of community diversity can exacerbate or reduce the net impacts of an invader. Furthermore, rigorous assessments of the effects of invasive species on native communities...
Microbial methane from in situ biodegradation of coal and shale: A review and reevaluation of hydrogen and carbon isotope signatures
David S. Vinson, Neal E. Blair, Anna M. Martini, Steve Larter, William H. Orem, Jennifer C. McIntosh
2017, Chemical Geology (453) 128-145
Stable carbon and hydrogen isotope signatures of methane, water, and inorganic carbon are widely utilized in natural gas systems for distinguishing microbial and thermogenic methane and for delineating methanogenic pathways (acetoclastic, hydrogenotrophic, and/or methylotrophic methanogenesis). Recent studies of coal and shale gas systems have characterized in situ microbial communities...
Community stability within the St. Marys River fish community: Evidence from trawl surveys
Jeffrey S. Schaeffer, Anjanette K. Bowen, David G. Fielder
2017, Journal of Great Lakes Research (43) 399-404
A trawl survey was conducted in the Saint Marys River during 2010–2011 and we compared our results to a prior trawl survey conducted during 1979–1983 to look for long-term changes in the fish community, especially in terms of changes induced by invasive species. We found no substantive temporal differences in...
Methodological considerations for detection of terrestrial small-body salamander eDNA and implications for biodiversity conservation
Donald M. Walker, Jacob E. Leys, Kelly E. Dunham, Joshua C. Oliver, Emily E. Schiller, Kelsey S. Stephenson, John T. Kimrey, Jessica Wooten, Mark W. Rogers
2017, Molecular Ecology Resources (17) 1223-1230
Environmental DNA (eDNA) can be used as an assessment tool to detect populations of threatened species and provide fine-scale data required to make management decisions. The objectives of this project were to use quantitative PCR (qPCR) to: (i) detect spiked salamander DNA in soil, (ii) quantify eDNA degradation over time,...
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...