An improved mechanical owl for efficient capture of nesting raptors
Meghan K. Jensen, Shanti D. Hamburg, Christopher T. Rota, David F. Brinker, Dustin L. Coles, Mark A. Manske, Vincent A. Slabe, Matthew J. Stuber, Amy B. Welsh, Todd E. Katzner
2019, Journal of Raptor Research (53) 14-25
Scientific study of raptors often requires the use of a lure to capture individuals for marking or collecting various data and samples. Live lure owls in the genus Bubo are commonly used with mist nets or dho-gazas to trap nesting raptors, but the use of these live lures presents ethical, logistical, and...
Genetic and morphological differences between water chestnut (Myrtales: Lythraceae: Trapa) populations in the northeastern United States, Japan, and South Africa
Lynde L. Dodd, Nancy B. Rybicki, Ryan Thum, Yasuro Kadono, Kadiera Searfoss Ingram
2019, Technical Report ERDC/EL TR-19-3
This Special Report (SR) outlines preliminary work conducted under the Aquatic Plant Control Research Program (APCRP) to investigate genetic and morphological differences of Trapa taxa (water chestnut) in the Northeastern (NE) US. Comparisons of morphological characteristics and genetics were made between Trapa populations from the native region of Eurasia...
A constant slip rate for the western Qilian Shan frontal thrust during the last 200 ka consistent with GPS-derived and geological shortening rates
Ralf Hetzel, Andrea Hampel, Pia Gebbeken, Qiang Xu, Ryan D. Gold
2019, Earth and Planetary Science Letters (509) 100-113
Active thrust faulting at the front of the Qilian Shan accommodates the northeastward growth of the Tibetan Plateau, however, the lifespan of individual faults and their slip history on different timescales remain largely unknown. Here, we show that the main range-bounding thrust fault of the western Qilian Shan has accrued...
Principles of translational science education
Chris Sutherland, B Padilla, Evan H. Campbell Grant
2019, Frontiers in Ecology and Evolution (17) 82-84
In a recent special issue in Frontiers in Ecology and the Environment, Enquist et al. (2017) present a welcome streamlining of modern applied ecology emphasizing a collaborative approach to applied ecological research involving resource-managers and scientists to produce actionable science: translational ecology (TE). The authors, including ecologists, social scientists, and conservation professionals, identified six principles...
Factors influencing anuran wetland occupancy in an agricultural landscape
Jennifer E. Swanson, Clay Pierce, Stephen J. Dinsmore, Kelly L. Smalling, Mark W. Vandever, Timothy W. Stewart, Erin L. Muths
2019, Herpetologica (75) 47-56
Habitat disturbance is an important cause of global amphibian declines, with especially strong effects in areas of high agricultural use. Determining the influence of site characteristics on amphibian presence and success is vital to developing effective conservation strategies. We used occupancy analysis to estimate presence of four anuran species at...
Fish growth changes over time in a Midwestern U.S. lake
Clay Pierce
2019, Transactions of the American Fisheries Society (148) 493-506
Growth of Walleyes Sander vitreus, Yellow Bass Morone mississippiensis, Common Carp Cyprinus carpio, and Black Bullheads Ameiurus melas was assessed in Clear Lake, Iowa, over several decades and in relation to environmental variables. Growth of Common Carp was positively correlated with phytoplankton concentration. Recent Black Bullhead growth was faster than...
Role of recovering river herring population on smallmouth bass diet and growth
Jonathan M. Watson, Stephen M. Coghlan Jr., Joseph D. Zydlewski, Daniel B. Hayes, Daniel S. Stich
2019, Book chapter, Managing centrarchid fisheries in rivers and streams
Fish assemblages in Atlantic coastal rivers have undergone extensive ecological change in the last two and a half centuries due to human influence, including extirpation of many migratory fish species, such as river herring (Alosa spp.) and introduction of nonnative piscivores, notably Smallmouth Bass Micropterus dolomieu. Recently, dam removals and...
Activity patterns of bats during the fall and spring along ridgelines in the central Appalachians
Michael S. Muthersbaugh, W. Mark Ford, Karen E. Powers
2019, Journal of Fish and Wildlife Management (10) 180-195
Many central Appalachian ridges offer high wind potential, making them attractive to future wind-energy development. Understanding seasonal and hourly activity patterns of migratory bat species may help to reduce fatalities at wind-energy facilities and provide guidance for the development of best management practices for bats....
Mapping the lava deltas of the 2018 eruption of Kīlauea Volcano
S. Adam Soule, Erin Heffron, Lindsay Gee, Larry Mayer, Nicole A. Raineault, Christopher R German, Darlene Lim, Michael H. Zoeller, Carolyn Parcheta
2019, Oceanography (32) 46-47
No abstract available....
Deep search: Deep sea exploration to advance research on coral/canyon/cold seep habitats
Erik E. Cordes, Amanda W.J. Demopoulos, Michael Rasser, Caitlin Adams
2019, Oceanography (32) 104-105
Led by the Bureau of Ocean Energy Management (BOEM), the United States Geological Survey (USGS), and OER is an interagency partnership to explore and characterize sensitive deepwater habitats of the U.S. mid- and south Atlantic deep-sea habitats. Sponsored by the National Oceanographic Partnership Program, the study has brought together scientists...
Dropstones in lacustrine sediments as a record of snow avalanches - A validation of the proxy by combining satellite imagery and varve chronology at Kenai Lake (south-central Alaska)
Sien Thys, Maarten Van Daele, Nore Praet, Britta J.L. Jensen, Thomas Van Dyck, Peter J. Haeussler, Elke Vandekerkhove, Veerle Cnudde, Marc De Batist
2019, Quaternary Geochronology (2)
Snow avalanches cause many fatalities every year and damage local economies worldwide. The present-day climate change affects the snowpack and, thus, the properties and frequency of snow avalanches. Reconstructing snow avalanche records can help us understand past variations in avalanche frequency and their relationship to climate change. Previous avalanche records...
Strontium residual salt analyses (SrRSA) and geochemistry of Bakken Formation core samples from Fleckten 1-20, North Dakota
Zell E. Peterman, Kiyoto Futa, Thomas Oliver
2019, Mountain Geologist (56) 5-17
Samples of Bakken Formation core from the Fleckton 1-20 well in Ward County, North Dakota, were analyzed using the Strontium Residual Salt Analysis (SrRSA) method to assess pore-water communication among the upper, middle, and lower sections of the unit by analyzing 87Sr/86Sr in pore-water salts leached from the core. Major and...
Complexities, context, and new information about the Elwha River
Jeff Duda, Joseph H Anderson, Matt M. Beirne, S.J. Brenkman, Patrick Crain, John Mahan, Michael McHenry, George Pess, Roger Peters, Brian Winter
2019, Frontiers in Ecology and the Environment (17) 10-11
Recently, Hand et al. (2018) discussed the socio- ecological complexities surround-ing natural resource policy, science, and management in the Columbia River Basin, using a case study of dam removal on the Elwha River in Washington State (WebFigure 1a). We feel compelled to provide additional historical context and correct some of...
Surface imaging functions for elastic reverse time migration
Frederick Pollitz
2019, Journal of Geophysical Research Solid Earth (124) 2873-2895
Reverse time migration is often used to interpret acoustic or three‐component seismic recordings by creating an image of subsurface seismic reflectors. Here I describe elastic reverse time migration imaging functions that are cast as waveform misfit sensitivity kernels of contrasts in material parameters across hypothetical seismic discontinuities, that is, specular...
Lithologies, ages, and provenance of clasts in the Ordovician Fincastle Conglomerate, Botetourt County, Virginia, USA
Harvey E. Belkin, John E. Repetski, Frank T. Dulong, Nelson L. Hickling
2019, Stratigraphy (15) 1-20
The Fincastle Conglomerate is an Ordovician polymictic, poorly sorted, matrix- and clast-supported cobble to boulder-rich conglomerate located just north of Fincastle, Botetourt County, VA. At least nine other cobble and boulder conglomerates are located in a similar stratigraphic position from Virginia to Georgia west of the Blue Ridge structural front....
Effectiveness of lake trout (Salvelinus namaycush) suppression in Lake Pend Oreille, Idaho: 2006–2016
Andrew M. Dux, Michael J. Hansen, Matthew P. Corsi, Nicholas C. Wahl, James P. Fredericks, Charles E. Corsi, Daniel J. Schill, Ned J. Horner
2019, Hydrobiologia (840) 319-333
The nonnative lake trout (Salvelinus namaycush Walbaum, 1792) population in Lake Pend Oreille, Idaho increased exponentially during 1999–2006. This led to an unsustainable level of predation mortality on kokanee (Oncorhynchus nerka Walbaum, 1792), increased the conservation threat to native bull trout (Salvelinus confluentus Suckley, 1859), and jeopardized...
The black brant population is declining based on mark recapture
James S. Sedinger, Thomas V. Riecke, Alan G. Leach, David H. Ward
2019, Journal of Wildlife Management (83) 627-637
Annual survival and recruitment in black brant (Branta bernicla nigricans) have declined since the 1990s, yet aerial surveys of the global population have been stable or even increasing over the past decade. We used a combination of a Lincoln estimator based on harvest information and band recoveries, and marked‐unmarked ratios...
Flexible timing of annual movements across consistently used sites by Marbled Godwits breeding in Alaska
Daniel R. Ruthrauff, T. Lee Tibbitts, Robert E. Gill Jr.
2019, The Auk (136) 1-11
The study of avian movement has detailed a spectrum of strategies for the timing and use of sites throughout the annual cycle, from near randomness to complete consistency. New tracking devices now permit the repeated tracking of individual animals throughout the annual cycle, detailing previously unappreciated levels of variation within...
U.S. Geological research at Grand Canyon National Park: A century of collaboration
Helen C. Fairley
2019, Book chapter, Celebrating 100 years of Grand Canyon National Park—A gathering of Grand Canyon historians—Ideas, arguments and first person accounts
(Fairley) When historians describe the decades preceding designation of Grand Canyon National Park (GCNP), they typically focus attention on early scientific studies conducted by John Wesley Powell, Clarence Dutton, and Charles Walcott. All three of these pioneering scientists were employed by the U.S. Geological Survey (USGS), a small Federal...
A multidisciplinary framework to derive global river reach classifications at high spatial resolution
Camille Ouellet Dallaire, Bernhard Lehner, Roger Sayre, Michele Thieme
2019, Environmental Research Letters (14) 1-12
Projected climate and environmental change are expected to increase the pressure on global freshwater resources. To prepare for and cope with the related risks, stakeholders need to devise plans for sustainable management of river systems, which in turn requires the identification of management-appropriate operational units, such as groups of rivers...
A new 30 meter resolution global shoreline vector and associated global islands database for the development of standardized ecological coastal units
Roger Sayre, Suzanne Noble, Sharon L. Hamann, Rebecca A. Smith, Dawn J. Wright, Sean P. Breyer, Kevin Butler, Keith Van Graafeiland, Charlie Frye, Deniz Karagulle, Dabney Hopkins, Drew Stephens, Kevin Kelly, Zeenatul Basher, Devon Burton, Jill Janene Cress, Karina Atkins, D. Paco Van Sistine, Beverly Friesen, Rebecca Allee, Tom Allen, Peter Aniello, Irawan Asaad, Mark John Costello, Kathy Goodin, Peter Harrison, Maria T. Kavanaugh, Helen Lillis, Eleonora Manca, Frank E. Muller-Karger, Bjorn Nyberg, Rost Parsons, Justin Saarinen, Jac Steiner, Adam Reed
2019, Journal of Operational Oceanography (12) s47-s56
A new 30-m spatial resolution global shoreline vector (GSV) was developed from annual composites of 2014 Landsat satellite imagery. The semi-automated classification of the imagery was accomplished by manual selection of training points representing water and non-water classes along the entire global coastline. Polygon topology was applied to the GSV,...
Adapting a regional water-quality model for local application: A case study for Tennessee, USA
Anne B. Hoos, Sherry H. Wang, Gregory E. Schwarz
2019, Environmental Modelling and Software (115) 187-199
We evaluated whether SPAtially Referenced Regression On Watershed attributes (SPARROW) models calibrated for two adjacent USA regions could be applied at the local scale to support management decisions for streams in Tennessee. Nutrient-source apportionment of load is important for this local-scale application and demands careful consideration of uncertainty in the calibrated coefficients. We used...
Geochemically distinct oil families in the onshore and offshore Santa Maria basins, California
Kenneth E. Peters, Paul G. Lillis, Thomas Lorenson, J. E. Zumberge
2019, AAPG Bulletin (103) 243-271
The purpose of this work is to identify genetic affinities among 48 crude oil samples from the onshore and offshore Santa Maria basins. A total of 21 source-related biomarker and stable carbon isotope ratios among the samples were assessed to assure that they were unaffected by secondary processes. Chemometric analysis...
Adaptive variation, including local adaptation, requires decades to become evident in common gardens
Matthew J. Germino, Ann M. Moer, Alan R. Sands
2019, Ecological Applications (29) 1-7
Population‐level adaptation to spatial variation in factors such as climate and soils is critical for climate‐vulnerability assessments, restoration seeding, and other ecological applications in species management, and the underlying information is typically based on common‐garden studies that are short duration. Here, we show >20 yr were required for adaptive differences to...
On the shoulders of giants: Continuing the legacy of large-scale ecosystem manipulation experiments in Puerto Rico
Tana E. Wood, Grizelle Gonzalez, Whendee L. Silver, Sasha C. Reed, Molly A. Cavaleri
2019, Forests (10) 1-18
There is a long history of experimental research in the Luquillo Experimental Forest in Puerto Rico. These experiments have addressed questions about biotic thresholds, assessed why communities vary along natural gradients, and have explored forest responses to a range of both anthropogenic and non-anthropogenic disturbances. Combined, these studies cover many...
