Assessing intrinsic and specific vulnerability models ability to indicate groundwater vulnerability to groups of similar pesticides: A comparative study
Steven H. Douglas, Barnali Dixon, Dale W. Griffin
2018, Physical Geography (39) 487-505
With continued population growth and increasing use of fresh groundwater resources, protection of this valuable resource is critical. A cost effective means to assess risk of groundwater contamination potential will provide a useful tool to protect these resources. Integrating geospatial methods offers a means to quantify the risk of contaminant...
The suitability of using dissolved gases to determine groundwater discharge to high gradient streams
Tom Gleeson, Andrew H. Manning, Andrea Popp, Mathew Zane, Jordan F. Clark
2018, Journal of Hydrology (557) 561-572
Determining groundwater discharge to streams using dissolved gases is known to be useful over a wide range of streamflow rates but the suitability of dissolved gas methods to determine discharge rates in high gradient mountain streams has not been sufficiently tested, even though headwater streams are critical as ecological habitats...
Use of real-time dust monitoring and surface condition to evaluate success of unpaved road treatments
Bethany K. Kunz, Nicholas S. Green, Janice L. Albers, Mark L. Wildhaber, Edward E. Little
2018, Conference Paper, Transportation Research Board Annual Meeting
No abstract available....
Leaching and sorption of neonicotinoid insecticides and fungicides from seed coatings
Kelly L. Smalling, Michelle L. Hladik, Corey Sanders, Kathryn Kuivila
2018, Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes (53) 176-183
Seed coatings are a treatment used on a variety of crops to improve production and offer protection against pests and fungal outbreaks. The leaching of the active ingredients associated with the seed coatings and the sorption to soil was evaluated under laboratory conditions using commercially available corn and soybean seeds...
An open source high-performance solution to extract surface water drainage networks from diverse terrain conditions
Larry V. Stanislawski, Kornelijus Survila, Jeffrey Wendel, Yan Liu, Barbara P. Buttenfield
2018, Cartography and Geographic Information Science (45) 319-328
This paper describes a workflow for automating the extraction of elevation-derived stream lines using open source tools with parallel computing support and testing the effectiveness of procedures in various terrain conditions within the conterminous United States. Drainage networks are extracted from the US Geological Survey 1/3 arc-second 3D Elevation Program...
The migratory bird treaty and a century of waterfowl conservation
Michael G. Anderson, Ray T. Alisauskas, Bruce D. J. Batt, Robert J. Blohm, Kenneth F. Higgins, Matthew Perry, James K. Ringelman, James S. Sedinger, Jerome R. Serie, David E. Sharp, David L. Trauger, Christopher K. Williams
2018, Journal of Wildlife Management (82) 247-259
In the final decades of the nineteenth century, concern was building about the status of migratory bird populations in North America. In this literature review, we describe how that concern led to a landmark conservation agreement in 1916, between the United States and Great Britain (on behalf of Canada) to...
Using expert knowledge to incorporate uncertainty in cause-of-death assignments for modeling of cause-specific mortality
Daniel P. Walsh, Andrew S. Norton, Daniel J. Storm, Timothy R. Van Deelen, Dennis M. Heisy
2018, Ecology and Evolution (8) 509-520
Implicit and explicit use of expert knowledge to inform ecological analyses is becoming increasingly common because it often represents the sole source of information in many circumstances. Thus, there is a need to develop statistical methods that explicitly incorporate expert knowledge, and can successfully leverage this information while properly accounting...
Planetary dune workshop expands to include subaqueous processes
Timothy N. Titus, Gerald Bryant, David M. Rubin
2018, Eos, Earth and Space Science News (99)
Dune-like structures appear in the depths of Earth’s oceans, across its landscapes, and in the extremities of the solar system beyond. Dunes rise up under the thick dense atmosphere of Venus, and they have been found under the almost unimaginably ephemeral atmosphere of a comet....
Perissodactyla diet
Kathryn A. Schoenecker
2018, Book chapter, Encyclopedia of animal cognition and behavior
Perissodactyla (Schoch 1989) includes tapirs, rhinoceros, wild asses, horses, and zebras. It is the order of hoofed mammals referred to as “odd-toed ungulates” because its members have one to three weight-bearing toes and walk on hoofs or “ungules.” They are herbivores that are specialized to exploit grasslands and brushy habitat...
Resource competition model predicts zonation and increasing nutrient use efficiency along a wetland salinity gradient
Donald Schoolmaster, Camille L. Stagg
2018, Ecology (99) 670-680
A trade-off between competitive ability and stress tolerance has been hypothesized and empirically supported to explain the zonation of species across stress gradients for a number of systems. Since stress often reduces plant productivity, one might expect a pattern of decreasing productivity across the zones of the stress gradient. However,...
Comparative analyses of hydrological responses of two adjacent watersheds to climate variability and change using the SWAT model
Sangchul Lee, In-Young Yeo, Ali M. Sadeghi, Gregory W. McCarty, Wells Hively, Megan W. Lang, Amir Sharifi
2018, Hydrology and Earth System Sciences (22) 689-708
Water quality problems in the Chesapeake Bay Watershed (CBW) are expected to be exacerbated by climate variability and change. However, climate impacts on agricultural lands and resultant nutrient loads into surface water resources are largely unknown. This study evaluated the impacts of climate variability and change on two adjacent watersheds...
Determinants of Pseudogymnoascus destructans within bat hibernacula: Implications for surveillance and management of white-nose syndrome
Michelle L. Verant, Elizabeth A. Bohuski, Katherine L. D. Richgels, Kevin J. Olival, Jonathan H. Epstein, David S. Blehert
2018, Journal of Applied Ecology (55) 820-829
Fungal diseases are an emerging global problem affecting human health, food security and biodiversity. Ability of many fungal pathogens to persist within environmental reservoirs can increase extinction risks for host species and presents challenges for disease control. Understanding factors that regulate pathogen spread and persistence in these...
Modulators of mercury risk to wildlife and humans in the context of rapid global change
Collin A. Eagles-Smith, Ellen K. Silbergeld, Niladri Basu, Paco Bustamante, Fernando Diaz-Barriga, William A. Hopkins, Karen A. Kidd, Jennifer F. Nyland
2018, Ambio (47) 170-197
Environmental mercury (Hg) contamination is an urgent global health threat. The complexity of Hg in the environment can hinder accurate determination of ecological and human health risks, particularly within the context of the rapid global changes that are altering many ecological processes, socioeconomic patterns, and other factors like infectious disease...
Irregular focal mechanisms observed at Salton Sea Geothermal Field: Possible influences of anthropogenic stress perturbations
Aren Crandall-Bear, Andrew J. Barbour, Martin Schoenball
Martin Schoenball, editor(s)
2018, Conference Paper, Proceedings, 43rd Workshop on Geothermal Reservoir Engineering
At the Salton Sea Geothermal Field (SSGF), strain accumulation is released through seismic slip and aseismic deformation. Earthquake activity at the SSGF often occurs in swarm-like clusters, some with clear migration patterns. We have identified an earthquake sequence composed entirely of focal mechanisms representing an ambiguous style of faulting, where...
Environmental DNA (eDNA): A tool for quantifying the abundant but elusive round goby (Neogobius melanostomus)
Meredith B. Nevers, Muruleedhara Byappanahalli, Charles C. Morris, Dawn Shively, Katarzyna Przybyla-Kelly, Ashley M. Spoljaric, Joshua Dickey, Edward F. Roseman
2018, PLoS ONE (13) 1-22
Environmental DNA (eDNA) is revolutionizing biodiversity monitoring, occupancy estimates, and real-time detections of invasive species. In the Great Lakes, the round goby (Neogobius melanostomus), an invasive benthic fish from the Black Sea, has spread to encompass all five lakes and many tributaries, outcompeting or consuming native species; however, estimates of...
Contaminant-associated health effects in fishes from the Ottawa and Ashtabula Rivers, Ohio
Luke R. Iwanowicz, Vicki S. Blazer, Heather L. Walsh, Cassidy H. Shaw, David S. DeVault, Jo A. Banda
2018, Journal of Great Lakes Research (44) 184-196
The health of resident fishes serves as a biologically relevant barometer of aquatic ecosystem integrity. Here, the health of the Ottawa River and Ashtabula River (both within the Lake Erie Basin) were assessed using morphological and immunological biomarkers in brown bullheads (Ameiurus nebulosus) and largemouth bass (Micropterus salmoides). Biomarker metrics...
Malassezia vespertilionis sp. nov.: A new cold-tolerant species of yeast isolated from bats
Jeffrey M. Lorch, Jonathan M. Palmer, Karen J. Vanderwolf, Katie Z. Schmidt, Michelle L. Verant, Theodore J. Weller, David S. Blehert
2018, Persoonia - Molecular Phylogeny and Evolution of Fungi (41) 56-70
Malassezia is a genus of medically-important, lipid-dependent yeasts that live on the skin of warm-blooded animals. The 17 described species have been documented primarily on humans and domestic animals, but few studies have examined Malassezia species associated with more diverse host groups such as wildlife. While investigating the skin mycobiota of healthy bats,...
Spatial patterns in occupancy and reproduction of Golden Eagles during drought: Prospects for conservation in changing environments
David Wiens, Patrick Kolar, W. Grainger Hunt, Teresa Hunt, Mark R. Fuller, Douglas A. Bell
2018, The Condor (120) 106-124
We used a broad-scale sampling design to investigate spatial patterns in occupancy and breeding success of territorial pairs of Golden Eagles (Aquila chrysaetos) in the Diablo Range, California, USA, during a period of exceptional drought (2014–2016). We surveyed 138 randomly selected sample sites over 4 occasions each year and identified...
How could a freshwater swamp produce a chemical signature characteristic of a saltmarsh?
Terrence A. McCloskey, Christopher G. Smith, Kam-biu Liu, Marci E. Marot, Christian Haller
2018, ACS Earth and Space Chemistry (2) 9-20
Reduction–oxidation (redox) reaction conditions, which are of great importance for the soil chemistry of coastal marshes, can be temporally dynamic. We present a transect of cores from northwest Florida wherein radical postdepositional changes in the redox regime has created atypical geochemical profiles at the bottom of the sedimentary column. The...
Tidal extension and sea-level rise: recommendations for a research agenda
Scott H. Ensign, Gregory E. Noe
2018, Frontiers in Ecology and the Environment (16) 37-43
Sea-level rise is pushing freshwater tides upstream into formerly non-tidal rivers. This tidal extension may increase the area of tidal freshwater ecosystems and offset loss of ecosystem functions due to salinization downstream. Without considering how gains in ecosystem functions could offset losses, landscape-scale assessments of ecosystem functions may be biased...
Response to Lisovski et al.
Henry M. Streby, Gunnar R. Kramer, Sean M. Peterson, Justin A. Lehman, David A. Buehler, David E. Andersen
2018, Current Biology (28) R101-R102
Lisovski et al. [1] describe the widely recognized limitations of light-level geolocator data for identifying short-distance latitudinal movements, recommend that caution be used when interpreting such data, intimated that we did not use such caution and argued that environmental shading likely explained the Golden-winged Warbler (Vermivora chrysoptera) movements described in our 2015...
Mineral commodity summaries 2018
Joyce A. Ober
2018, Report
This report is the earliest Government publication to furnish estimates covering 2017 nonfuel mineral industry data. Data sheets contain information on the domestic industry structure, Government programs, tariffs, and 5-year salient statistics for more than 90 individual minerals and materials....
Flood-inundation maps for the Withlacoochee River From Skipper Bridge Road to St. Augustine Road, within the City of Valdosta, Georgia, and Lowndes County, Georgia
Jonathan W. Musser
2018, Scientific Investigations Report 2018-5011
Digital flood-inundation maps for a 12.6-mile reach of the Withlacoochee River from Skipper Bridge Road to St. Augustine Road (Georgia State Route 133) were developed to depict estimates of the areal extent and depth of flooding corresponding to selected water levels (stages) at the U.S. Geological Survey (USGS) streamgage at...
Missouri StreamStats—A water-resources web application
Jarrett T. Ellis
2018, Fact Sheet 2018-3003
The U.S. Geological Survey (USGS) maintains and operates more than 8,200 continuous streamgages nationwide. Types of data that may be collected, computed, and stored for streamgages include streamgage height (water-surface elevation), streamflow, and water quality. The streamflow data allow scientists and engineers to calculate streamflow statistics, such as the 1-percent annual exceedance...
Maps showing predicted probabilities for selected dissolved oxygen and dissolved manganese threshold events in depth zones used by the domestic and public drinking water supply wells, Central Valley, California
Celia Z. Rosecrans, Bernard T. Nolan, JoAnn M. Gronberg
2018, Scientific Investigations Map 3397
The purpose of the prediction grids for selected redox constituents—dissolved oxygen and dissolved manganese—are intended to provide an understanding of groundwater-quality conditions at the domestic and public-supply drinking water depths. The chemical quality of groundwater and the fate of many contaminants is influenced by redox processes in all aquifers, and...
