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164511 results.

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Are hatchery-reared Rainbow Trout and Brown Trout effective predators on juvenile native fish?
David L. Ward, Rylan Morton-Starner, Benjamin Vaage
2018, North American Journal of Fisheries Management (38) 1105-1113
Hatchery‐reared Rainbow Trout Oncorhynchus mykiss and Brown Trout Salmo trutta are typically fed exclusively on commercially prepared pelleted feeds and have no experience catching or consuming live fish at the time of stocking. Despite this lack of predation experience, it is commonly assumed that stocked Rainbow Trout and Brown Trout will adversely impact native...
Interactions and impacts of domesticated animals on cranes in agriculture
Jane E. Austin, Kunikazu Momose, George W. Archibald
2018, Book chapter, Cranes and agriculture: A global guide for sharing the landscape
Affiliations of most cranes to humans and agriculture means they often interact with a variety of domestic animals. Those interactions can be beneficial or neutral when domestic animal densities and their impact on wetland or grassland systems are low to moderate, as found in more traditional agricultural practices. The most...
A 30-m landsat-derived cropland extent product of Australia and China using random forest machine learning algorithm on Google Earth Engine cloud computing platform
Pardhasaradhi Teluguntla, Prasad S. Thenkabail, Adam Oliphant, Jun Xiong, Murali Krishna Gumma, Russell G. Congalton, Kamini Yadav, Alfredo Huete
2018, ISPRS Journal of Photogrammetry and Remote Sensing (144) 325-340
Mapping high resolution (30-m or better) cropland extent over very large areas such as continents or large countries or regions accurately, precisely, repeatedly, and rapidly is of great importance for addressing the global food and water security challenges. Such cropland extent products capture individual farm fields, small or large, and...
Observed climate change
Patricia R. Butler-Leopold, Louis R. Iverson, Frank R. Thompson, Leslie A. Brandt, Stephen D. Handler, Maria K. Janowiak, P. Danielle Shannon, Christopher W. Swanston, Scott Bearer, Alexander Bryan, Kenneth L. Clark, Greg Czarnecki, Philip DeSenze, William D. Dijak, Jacob S. Fraser, Paul F. Gugger, Andrea Hille, Justin Hynicka, Claire A. Jantz, Matthew C. Kelly, Katrina M. Krause, Inga P. La Puma, Deborah Landau, Richard G. Lathrop, Laura P. Leites, Evan Madlinger, Stephen N. Matthews, Gulnihal Ozbay, Matthew P. Peters, Anantha Prasad, David A. Schmit, Collin Shephard, Rebecca Shirer, Nicholas S. Skowronski, Al Steele, Susan Stout, Melissa Thomas-Van Gundy, John Thompson, Richard M. Turcotte, David A. Weinstein, Alfonso Yanez
2018, Book chapter, General Technical Report NRS-181, Mid-Atlantic forest ecosystem vulnerability assessment and synthesis: A report from the Mid-Atlantic Climate Change Response Framework project
As discussed in Chapter 1, climate is one of the principal factors that have determined the composition and extent of forest ecosystems in the Mid-Atlantic region during the past several thousand years. This chapter describes the climate trends in the assessment area that have been observed during the past century,...
President's address for Wetland Science and Practice - October 2018
Beth A. Middleton
2018, Wetland Science & Practice 309-309
As 2018 moves into its last quarter, those of us in the southern U.S. check the skies for hurricanes, academics and students return to the classroom, and researchers wrap up the last of their year’s field work. For SWS, the last quarter brings new ways to promote internationalization......
Salt marsh loss affects tides and sediment budget in shallow bays
Carmine Donatelli, Neil K. Ganju, Xiaohe Zhang, Sergio Fagherazzi, Nicoletta Leonardi
2018, Journal of Geophysical Research F: Earth Surface (123) 2647-2662
The current paradigm is that salt marshes and their important ecosystem services are threatened by global climate change; indeed, large marsh losses have been documented worldwide. Morphological changes associated with salt marsh erosion are expected to influence the hydrodynamics and sediment dynamics of coastal systems. Here the influence of salt...
Puerto Rico and the U.S. Virgin Islands
Jennifer Runkle, Kenneth E. Kunkel, Laura E. Stevens, Sarah Champion, David Easterling, Adam Terando, Liqiang Sun, Brooke C. Stewart, Glenn Landers
Sarah Champion, David Easterling, Adam J. Terando, Liqiang Sun, Brooke C. Stewart, Glenn Landers, editor(s)
2018, NOAA State Climate Summaries 149-PR
Average annual temperature for Puerto Rico and the U.S. Virgin Islands has increased by more than 1.5°F since 1950. Under a higher emissions pathway, historically unprecedented warming is projected by the end of the 21st century, including increases in extreme heat events. Future changes in total precipitation are uncertain, but...
Effects of watershed and in-stream liming on macroinvertebrate communities in acidified tributaries to Honnedaga Lake, NY
Gregory Lampman, Scott D. George, Barry P. Baldigo, Gregory B. Lawrence, Randall L. Fuller
2018, Summary Report 18-18
Liming techniques are being explored in many regions as a means to accelerate the recovery of aquatic biota from decades of acid deposition. The preservation or restoration of native sportfish populations has usually been the impetus for liming programs, and as such, less attention has been paid to its effects...
What makes a first‐magnitude spring?: Global sensitivity analysis of a speleogenesis model to gain insight into karst network and spring genesis
Wesley R. Henson, Rob de Rooij, Wendy D. Graham
2018, Water Resources Research (54) 7417-7434
Often, karstic conduit network geometry is unknown. This lack of knowledge represents a significant limitation when modeling flow and solute transport in karst systems. In this study, we apply Morris Method Global Sensitivity Analysis to a speleogenesis model to identify model input parameters, and combinations thereof, that most significantly influence...
Preliminary evaluation of behavioral response of nesting waterbirds to small unmanned aircraft flight
Kaitlyn Reintsma, Peter C. McGowan, Carl R. Callahan, Tom Collier, David Gray, Jeffery D. Sullivan, Diann J. Prosser
2018, Waterbirds (41) 326-331
Small unmanned aircraft systems present an emerging technology with the potential to survey colonial waterbird populations while reducing disturbance in comparison to traditional ground counts. Recent research with these systems has been performed on some colonially nesting avian species; however, none have focused on wading bird species. During 2015–2016, this...
Stock structure, dynamics, demographics, and movements of walleyes spawning in four tributaries to Green Bay
Daniel J. Dembkowski, Daniel A. Isermann, Steven R. Hogler, Wesley Larson, Keith N. Turnquist
2018, Journal of Great Lakes Research (44) 970-978
To test assumptions related to the current conceptual model for walleye Sander vitreusmanagement in Green Bay, we evaluated whether: 1) spawning aggregations in the Fox, Menominee, Oconto, and Peshtigo rivers represent genetically distinct stocks; 2) population dynamics and demographics vary among walleye spawning at these locations; 3) walleye spawning in these rivers contribute to...
Simulation of groundwater flow, 1895–2010, and effects of additional groundwater withdrawals on future stream base flow in the Elkhorn and Loup River Basins, central Nebraska—Phase three
Amanda T. Flynn, Jennifer S. Stanton
2018, Scientific Investigations Report 2018-5106
The U.S. Geological Survey, in cooperation with the Lewis and Clark, Lower Elkhorn, Lower Loup, Lower Platte North, Lower Niobrara, Middle Niobrara, Upper Elkhorn, and the Upper Loup Natural Resources Districts, designed a study to refine the spatial and temporal discretization of a previously modeled area. This updated study focused on...
Evaluation of anal fin spines, otoliths, and scales for estimating age and back-calculated lengths of yellow perch in southern Green Bay
Daniel A. Isermann, Jason J. Breeggemann, Tammie J. Paroli
2018, Journal of Great Lakes Research (44) 979-989
Southern Green Bay supports important fisheries for yellow perch Perca flavescens and valid estimates of age structure and growth are critical to effective management. Anal fin spines and scales are used by the Wisconsin Department of Natural Resources for age estimation, but these structures may provide lower precision and accuracy than otoliths. The primary objective of our assessment was to...
Occupancy modeling species–environment relationships with non‐ignorable survey designs
Kathryn M. Irvine, Thomas J. Rodhouse, Wilson J. Wright, Anthony R. Olsen
2018, Ecological Applications (28) 1616-1625
Statistical models supporting inferences about species occurrence patterns in relation to environmental gradients are fundamental to ecology and conservation biology. A common implicit assumption is that the sampling design is ignorable and does not need to be formally accounted for in analyses. The analyst assumes data are representative of the...
A geostatistical state‐space model of animal densities for stream networks
Daniel J. Hocking, James T. Thorson, Kyle O’Neil, Benjamin H. Letcher
2018, Ecological Applications (28) 1782-1796
Population dynamics are often correlated in space and time due to correlations in environmental drivers as well as synchrony induced by individual dispersal. Many statistical analyses of populations ignore potential autocorrelations and assume that survey methods (distance and time between samples) eliminate these correlations, allowing samples to be treated independently....
Migration trends for king and common eiders and yellow-billed loons past Point Barrow in a rapidly changing environment
Abby Powell, R. Bentzen, R. Suydam
2018, Final Report BOEM 2018-059
Most of the king (Somateria spectabilis) and common eiders (S. mollissima v-nigra) nesting in northern Alaska and northwestern Canada migrate past Point Barrow, Alaska, during the spring and fall migration. Yellow-billed loons (Gavia adamsii) also migrate past Point Barrow and are a species of international conservation concern. Spring migration counts...
Floristic and climatic reconstructions of two Lower Cretaceous successions from Peru
Paula J. Mejia-Velasquez, Steven R. Manchester, Carlos A. Jaramillo, Luiz Quiroz, Lucas B. Fortini
2018, Palynology (42) 420-433
Climate during the Early Cretaceous in tropical South America has often been reconstructed as arid. However, some areas seem to have been humid. We reconstructed the floristic composition of two tropical stratigraphic successions in Peru using quantitative palynology (rarefied species richness and abundance), and used the abundance of aridity vs....
Juke Box trench: A valuable archive of late Pleistocene and Holocene stratigraphy in the Bonneville basin, Utah
Charles G. Oviatt, Jeffrey S. Pigati, David B. Madsen, David E. Rhode, Jordon Bright
2018, Miscellaneous Publication 18-1
A backhoe trench in deposits of Pleistocene Lake Bonneville and Holocene wetlands below the mouth of Juke Box Cave, near Wendover, Utah, provides an excellent view of the late Pleistocene and Holocene geologic history of the area. The following stratigraphic units are exposed (ascending): preBonneville gravel (fluvial or lacustrine) and...
Induced earthquake and liquefaction hazards in Oklahoma, USA: Constraints from InSAR
William D. Barnhart, William L. Yeck, Daniel E. McNamara
2018, Remote Sensing of Environment (218) 1-12
Oklahoma experienced three earthquakes of Mw5.0 or greater in 2016: the 13-Feb. Fairview earthquake (Mw5.1), the 03-Sep. Pawnee earthquake (Mw5.8), and the 07-Nov. Cushing earthquake (Mw5.0). These events are the first earthquakes in the state exceeding Mw5.0 since the 2011 Mw5.7 Prague earthquake and likely result from wide-scale deep fluid-injection. We use interferometric synthetic...
Economics, helium, and the U.S. Federal Helium Reserve: Summary and outlook
Steven T. Anderson
2018, Natural Resources Research (27) 455-477
In 2017, disruptions in the global supply of helium reminded consumers, distributors, and policy makers that the global helium supply chain lacks flexibility, and that attempts to increase production from the U.S. Federal Helium Reserve (the FHR) may not be able to compensate for the loss of one of the...
Quantifying climate sensitivity and climate-driven change in North American amphibian communities
David A.W. Miller, Evan H. Campbell Grant, Erin L. Muths, Staci M. Amburgey, M. J. Adams, Maxwell B. Joseph, J. Hardin Waddle, Pieter T.J. Johnson, Maureen E. Ryan, Benedikt R. Schmidt, Daniel L. Calhoun, Courtney L. Davis, Robert N. Fisher, David M. Green, Blake R. Hossack, Tracy A.G. Rittenhouse, Susan C. Walls, Larissa L. Bailey, Sam S. Cruickshank, Gary M. Fellers, Thomas A. Gorman, Carola A. Haas, Ward Hughson, David S. Pilliod, Steven J. Price, Andrew M. Ray, Walter Sadinski, Daniel Saenz, William J. Barichivich, Adrianne B. Brand, Cheryl S. Brehme, Rosi Dagit, Katy S. Delaney, Brad M. Glorioso, Lee B. Kats, Patrick M. Kleeman, Christopher Pearl, Carlton J. Rochester, Seth P. D. Riley, Mark F. Roth, Brent Sigafus
2018, Nature Communications (9)
Changing climate will impact species’ ranges only when environmental variability directly impacts the demography of local populations. However, measurement of demographic responses to climate change has largely been limited to single species and locations. Here we show that amphibian communities are responsive to climatic variability, using >500,000 time-series observations for...
Delineation of contributing areas for 2017 pumping conditions to selected wells in Ingham County, Michigan
Carol L. Luukkonen
2018, Open-File Report 2018-1133
As part of local wellhead protection area programs, areascontributing water to production wells need to be periodicallyupdated because groundwater-flow paths depend in part onthe stresses to the groundwater-flow system. A steady-stategroundwater-flow model that was constructed in 2009 wasupdated to reflect recent (2017) pumping conditions in theLansing and East Lansing area...
Great Lakes coastal fish habitat classification and assessment
K. E. Kovalenko, L.B. Johnson, C. M. Riseng, M. J. Cooper, K. Johnson, L. A. Mason, James E. McKenna Jr., B. L. Sparks-Jackson, D.G. Uzarski
2018, Journal of Great Lakes Research (44) 1100-1109
Basin-scale assessment of fish habitat in Great Lakes coastal ecosystems would increase our ability to prioritize fish habitat management and restoration actions. As a first step in this direction, we identified key habitat factors associated with highest probability of occurrence for several societally and ecologically important coastal fish species as well as community metrics,...