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...
Wild migrations: Atlas of Wyoming's ungulates
William J. Rudd, Matthew Kauffman, James Meacham, Hall Sawyer, Emilene Ostlind, Alethea Steingisser
2018, Book
No abstract available....
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....
Long-term rehabilitation of Delavan Lake, Wisconsin, USA
Dale M. Robertson
D. Hamilton, K. Collier, J. Quinn, C. Howard-Williams, editor(s)
2018, Book chapter, Lake restoration handbook: A New Zealand perspective
No abstract available. ...
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,...
Persistence-based area prioritization for conservation: Applying occupancy and habitat threats and risks analyses
L. M. Yirka, Jaime A. Collazo, S. G. Williams, D. T. Cobb
2018, Journal of Fish and Wildlife Management (9) 554-564
Effective habitat conservation is predicated on maintaining high levels or increasing local persistence probability of the species it purports to protect. Thus, methodological approaches that improve the inferential value of local persistence are of utmost value to guide conservation planning as they inform area selection processes. Herein we used the...
Resistance to deltamethrin in prairie dog (Cynomys ludovicianus) fleas in the field and in the laboratory
David A. Eads, Dean E. Biggins, Jonathan Bowser, Janet McAllister, Randall Griebel, Eddie Childers, Travis M. Livieri, Cristi Painter, Lindsey Sterling Krank, Kristy Bly
2018, Journal of Wildlife Diseases (54) 745-754
Sylvatic plague poses a substantial risk to black-tailed prairie dogs (Cynomys ludovicianus) and their obligate predator, the black-footed ferret (Mustela nigripes). The effects of plague on prairie dogs and ferrets are mitigated using a deltamethrin pulicide dust that reduces the spread of plague by killing fleas, the vector...
Effectiveness of ultrasonic imaging for evaluating presence and maturity of eggs in fishes in remote field locations
Morgan E. Brizendine, David Ward, Scott A. Bonar
2018, North American Journal of Fisheries Management (38) 1017-1026
Ultrasonic imaging is an effective, nonlethal method used to determine sex and maturity in a variety of fishes. However, many previous studies of this technique have been performed in laboratory environments. Using Common Carp Cyprinus carpio, we developed a standardized method for ultrasonically scanning cyprinids, and we accurately sexed 78% (N = 58)...
A regime shift in sediment export from a coastal watershed during a record wet winter, California: Implications for landscape response to hydroclimatic extremes
Amy E. East, Andrew W. Stevens, Andrew C. Ritchie, Patrick L. Barnard, Pamela L. Campbell‐Swarzenski, Brian D. Collins, Christopher H. Conaway
2018, Earth Surface Processes and Landforms (43) 2562-2577
Small, steep watersheds are prolific sediment sources from which sediment flux is highly sensitive to climatic changes. Storm intensity and frequency are widely expected to increase during the 21st century, and so assessing the response of small, steep watersheds to extreme rainfall is essential to understanding landscape response to climate...
Development of the Wildlife Adaptation Menu for Resource Managers
Olivia E. LeDee, Stephen D. Handler, Chris Hoving, Christopher W. Swanston, Benjamin Zuckerberg
2018, Report
The Climate Change Response Framework is an example of a collaborative, cross-boundary approach to create a set of tools, partnerships, and actions to support climate-informed conservation and land management. Historically, this effort has focused on the needs of forest managers and forestry professionals. In recent years, however, there has been...
A statement of common ground regarding the role of wildfire in forested landscapes of the western United States
Max A. Moritz, Chris Topik, Craig D. Allen, Paul F. Hessburg, Penelope Morgan, Dennis C. Odion, Thomas T. Veblen, Ian M. McCullough
2018, Report
For millennia, wildfires have markedly influenced forests and non-forested landscapes of the western United States (US), and they are increasingly seen as having substantial impacts on society and nature. There is growing concern over what kinds and amounts of fire will achieve desirable outcomes and limit harmful effects on people...
United States bat species of concern: A synthesis
Thomas J. O’Shea, Paul M. Cryan, Michael A. Bogan
2018, Proceedings of the California Academy of Sciences, 4th series (65) 1-279
In 1994 the federal government designated 24 species or subspecies of bats in the United States (U.S.) and its territories as Category 2 candidates for listing as Endangered or Threatened under the U.S. Endangered Species Act. Category 2 was eliminated in 1996, but taxa previously receiving this designation were informally...
Time series of high-resolution images enhances efforts to monitor post-fire condition and recovery, Waldo Canyon fire, Colorado, USA
Melanie K. Vanderhoof, Clifton Burt, Todd Hawbaker
2018, International Journal of Wildland Fire (27) 699-713
Interpretations of post-fire condition and rates of vegetation recovery can influence management priorities, actions and perception of latent risks from landslides and floods. In this study, we used the Waldo Canyon fire (2012, Colorado Springs, Colorado, USA) as a case study to explore how a time series (2011–2016) of high-resolution...
