Occurrence, Abundance, and Associations of Topeka Shiners (Notropis topeka) in Restored and Unrestored Oxbows in Iowa and Minnesota, USA
Nicholas T. Simpson, Alexander P. Bybel, Michael J. Weber, Clay Pierce, Kevin J. Roe
2019, Aquatic Conservation: Marine and Freshwater Ecosystems (29) 1735-1748
In the USA, the Topeka shiner (Notropis topeka) is a federally listed endangered species that has been in decline for decades. A key reason for the decline is the alteration of naturally flowing streams and associated oxbow habitats resulting from land-use changes. The focus of recent conservation efforts for...
Evidence of limited recruitment of Pallid Sturgeon in the Lower Missouri River
Kirk D. Steffensen, Kimberly Chojnacki, Jeffery A. Kalie, Meredith L. Bartron, Edward J. Heist, Kyle R. Winders, Nathan C. Loecker, Wyatt J. Doyle, Timothy L. Welker
2019, Journal of Fish and Wildlife Management (10) 336-34
Pallid Sturgeon Scaphirhynchus albus are endemic to the Missouri and Mississippi river basins and are rare throughout their range. The species was listed as federally endangered with little to no evidence of natural recruitment. Since population augmentation was initiated as a recovery objective in the early 1990s, thousands of hatchery-origin...
Hydrogeologic framework and delineation of transient areas contributing recharge and zones of contribution to selected wells in the upper Santa Fe Group aquifer, southeastern Albuquerque, New Mexico, 1900–2050
Nathan C. Myers, Paul J. Friesz
2019, Scientific Investigations Report 2019-5052
The Santa Fe Group aquifer is an important source of water to communities within the Middle Rio Grande Basin, including the Albuquerque-Rio Rancho metropolitan area and Kirtland Air Force Base, New Mexico. In November 1999, Kirtland Air Force Base personnel observed fuel-stained soils at the Bulk Fuels Facility on the...
Hydrous heating experiments at 130°C yield insights into the occurrence of hydrogen sulfide and light alkanes in natural gas reservoirs
M.A. Alrowaie, Aaron M. Jubb, A. Schimmelmann, M. Mastalerz, L.M. Pratt
2019, Organic Geochemistry (137)
Improved understanding of the origin of produced volatiles from conventional reservoirs and unconventional source rocks is critical for petroleum exploration and production. A series of hydrous heating experiments using two immature Type II siliciclastic source rocks, Pennsylvanian Turner Mine shale (TMS) and Devonian New Albany Shale (NAS), at 130 °C...
Preface—Evaluating the response of critical zone processes to human impacts with sediment source fingerprinting
J. Patrick Laceby, Allen C. Gellis, Alexander J. Koiter, Will H. Blake, Olivier Evrard
2019, Journal of Soils and Sediments (19) 3245-3254
1) Background: Critical Zone Processes in the Anthropocene The Earth’s Critical Zone encompasses a suite of interconnected processes in the near-surface lithosphere, pedosphere, biosphere, atmosphere, and hydrosphere (Brantley et al., 2007; Lin, 2010) (Fig. 1). Processes and interactions both within and between these various Critical Zone components supports life-sustaining ecosystem services...
Right-lateral fault motion along the slope-basin transition, Gulf of Santa Catalina, southern California
James Conrad, Daniel Brothers, Katherine Coble, Holly F. Ryan, Peter Dartnell, Ray Sliter
Susan Cochran, editor(s)
2019, Book chapter, From the Mountains to the Abyss: The California Borderland as an Archive of Southern California Geologic Evolution
An active fault system carrying a significant component of right-lateral strike-slip motion extends for ~60 km along the slope–basin transition, ~10 to 20 km offshore of the southern California coast from La Jolla to Dana Point. From south to north, this fault system includes the Carlsbad, San Onofre, and San...
Remote sensing as the foundation for high-resolution United States landscape projections – The Land Change Monitoring, assessment, and projection (LCMAP) initiative
Terry L. Sohl, Jordan Dornbierer, Steve Wika, Charles Robison
2019, Environmental Modelling and Software (120)
The Land Change Monitoring, Assessment, and Projection (LCMAP) initiative uses temporally dense Landsat data and time series analyses to characterize landscape change in the United States from 1985 to present. LCMAP will be used to explain how past, present, and future landscape change affects society and natural systems. Here, we...
Species profile: Quercus parvula
Emily Beckman, Ian Pearse, Abby Meyer, Murphy Westwood
2019, Book chapter, Conservation Gap Analysis of native U.S. Oaks
No abstract available....
Agri-tourism and rural outdoor recreation in the US: A framework for understanding economic and employment dynamics
Dawn Thilmany, Rebecca Hill, Michelle Haefele, Anders van Sandt, Catherine Cullinane Thomas, Martha Sullins, Sarah Low
2019, Book chapter, Rural policies and employment: TransAtlantic experiences
Agri-tourism and rural outdoor recreation are positioned at an important intersection between agricultural, natural resource, economic development and rural issues. This chapter summarizes some of the important dynamics of these sectors, including the role of land use, regional drivers, motivations for farmers and travelers, and economic impacts. As a means...
Geochemical characterization of iron and steel slag and its potential to remove phosphate and neutralize acid
Nadine M. Piatak, Robert R. Seal, II, Darryl Andre Hoppe, Carlin J. Green, Paul M. Buszka
2019, Minerals (9)
Iron and steel slags from legacy and modern operations in the Chicago-Gary area of Illinois and Indiana, USA, are predominantly composed of Ca (10 - 44 wt. % CaO), Fe, (0.3 - 28 wt. % FeO), and Si (10 - 44 wt. % SiO2), with generally lesser amounts of Al...
U.S. Geological Survey response to chronic wasting disease
M. Camille Hopkins, Suzanna C. Soileau
2019, Fact Sheet 2019-3034
The U.S. Geological Survey (USGS) is focused on the development of early detection and effective response tools that promote an adaptive management approach to chronic wasting disease (CWD). USGS scientists across the United States are working to understand the biology of CWD, assess and predict the spread and persistence in...
Nutrients in northern Missouri streams
Heather Krempa
2019, Fact Sheet 2019-3038
Nutrients, specifically nitrogen and phosphorus, are necessary for healthy aquatic communities to thrive, but if nutrient concentrations are too high, water quality can be degraded and natural aquatic communities may be destroyed. Nutrients consistently have been listed nationally as one of the top five causes of stream and river impairments,...
Fire severity and changing composition of forest understory plant communities
Jens Stevens, Jesse Miller, Paula J. Fornwalt
2019, Journal of Vegetation Science (30) 1099-1109
QuestionsGradients of fire severity in dry conifer forests can be associated with variation in understory floristic composition. Recent work in dry conifer forests in California, USA, has suggested that more severely burned stands contain more thermophilic taxa (those associated with warmer and drier conditions), and that forest...
Reduced soil macropores and forest cover reduce warm-season baseflow below ecological thresholds in the upper Delaware River Basin
Theodore A. Endreny, Peter Yong Seuk Kwon, Tanja N. Williamson, Richard Evans
2019, Journal of the American Water Resources Association (55) 1268-1287
We examined the impacts of changes in land cover and soil conditions on the flow regime of the upper Delaware River Basin using the Water Availability Tool for Environmental Resources (WATER). We simulated flows for two periods, circa 1600 and 1940, at three sites using the same temperature and precipitation...
Characterizing crop water use dynamics in the Central Valley of California using landsat-derived evapotranspiration
Matthew Schauer, Gabriel Senay
2019, Remote Sensing (15)
Understanding how different crops use water over time is essential for planning and managing water allocation, water rights, and agricultural production. The main objective of this paper is to characterize the spatiotemporal dynamics of crop water use in the Central Valley of California using Landsat-based annual actual evapotranspiration (ETa) from...
Toward sustainable environmental quality: Priority research questions for North America
Anne Fairbrother, Derek Muir, Keith R. Solomon, Gerald T. Ankley, Murray A. Rudd, Alistair B. A. Boxall, William J. Adams, Jennifer N. Apell, Kevin L. Armbrust, Bonnie J. Blalock, Sarah R. Bowman, Linda M. Campbell, George P. Cobb, Kristin A. Connors, David A. Dreier, Marlene S. Evans, Carol J. Henry, Robert A. Hoke, Magali Houde, Stephen J. Klaine, Rebecca D. Klaper, Sigrun A. Kullik, Roman P. Lanno, Charles Meyer, Mary Ann Ottinger, Elias Oziolor, Elijah J. Petersen, Helen C. Poynton, Pamela J. Rice, Gabriela Rodriguez-Fuentes, Alan Samel, Joseph R. Shaw, Jeffery A. Steevens, Tim A. Verslycke, Doris E. Vidal-Dorsch, Scott M. Weir, Peter Wilson, Bryan W. Brooks
2019, Environmental Toxicology and Chemistry (38) 1606-1624
Anticipating, identifying, and prioritizing strategic needs represent essential activities by research organizations. Decided benefits emerge when these pursuits engage globally important environment and health goals, including the United Nations Sustainable Development Goals. To this end, horizon scanning efforts can facilitate identification of specific research needs to...
Baseline groundwater hydrology and water quality in and around Bluff, Utah
Olivia L. Miller
2019, Open-File Report 2019-1076
Southeastern Utah has a long history of oil and gas production. Two new hydrocarbon extraction wells have been proposed several miles northeast of the town of Bluff, Utah. In response to concern about the impacts of oil and gas extraction in the area on drinking-water quality, this study provides groundwater...
Luminescence as a sediment tracer and provenance tool
Harrison J. Gray, Mayank Jain, Andre Sawakuchi, Shannon A. Mahan, Gregory E. Tucker
2019, Reviews of Geophysics (57) 987-1017
Luminescence holds unique potential as a sediment tracer and provenance method. The tracer application of luminescence has key advantages including ease of measurement, relatively low cost, and applicability to geologically ubiquitous quartz and feldspar sand and silt. These advantages can help answer fundamental questions about geomorphology, sediment transport, sediment production,...
Rupture branching structure of the 2014 Mw 6.0 South Napa, California earthquake inferred from explosion-generated fault-zone trapped waves
Yong-Gang Li, Rufus D. Catchings, Mark Goldman
2019, Bulletin of the Seismological Society of America (109) 1907-1921
We present evidence for multiple fault branches of the West Napa fault zone (WNFZ) based on fault‐zone trapped waves (FZTWs) generated by two explosions that were detonated within the main surface rupture zone produced by the 24 August 2014 Mw 6.0 South Napa earthquake. The FZTWs were recorded by a...
South Atlantic Water Science Center Strategic Science Plan: 2019–23
Thomas F. Cuffney, Ana M. Garcia, Arthur J. Horowitz, Jacob H. LaFontaine, James E. Landmeyer, Anna M. McKee, Kristen B. McSwain, Jaime A. Painter, John M. Shelton, Christopher A. Smith
2019, Open-File Report 2019-1068
Executive SummaryThe South Atlantic Water Science Center Strategic Science Planning Team has developed a unified strategic science plan to guide the science vision of the South Atlantic Water Science Center (SAWSC) in response to the merging of the Georgia, North Carolina, and South Carolina Water Science Centers. This plan proposes...
Assessing the impact of charr research past, present, and future
Michael J. Hansen, Charles C. Krueger, Andrew M. Muir, Anders Klemetsen, Michael Power
2019, Hydrobiologia (840) 1-10
The 9th International Charr Symposium convened on 18–21 June 2018, in Duluth, Minnesota, USA to gather scientists with an interest in charr biology and management from the entire geographical range of the genus Salvelinus. The symposium was attended by 169 individuals from six countries, and included 99 oral and 32...
Don Swanson: A field volcanology career worth celebrating
Michael P. Poland, Michael O. Garcia, Victor E. Camp, Anita L. Grunder
2019, Book chapter, Field volcanology: A tribute to the distinguished career of Don Swanson
Don Swanson has profoundly influenced generations of volcanologists and has made major contributions to our understanding of both silicic and basaltic volcanic systems. He provides an exceptional example of how a gifted scientist can develop entirely new paradigms related to large-scale problems on the basis of decades of study, as...
Introduction to special issue on gas hydrate in porous media: Linking laboratory and field‐scale phenomena
Carolyn D. Ruppel, Joo Yong Lee, Ingo Pecher
2019, Journal of Geophysical Research B: Solid Earth (124) 7525-7537
The proliferation of drilling expeditions focused on characterizing natural gas hydrate as a potential energy resource has spawned widespread interest in gas hydrate reservoir properties and associated porous media phenomena. Between 2017 and 2019, a Special Section of this journal compiled contributed papers elucidating interactions between gas hydrate and sediment...
Uncertainty of reference pixel soil moisture averages sampled at SMAP core validation sites
Fan Chen, W.T Crow, M.H. Cosh, A. Colliander, J. Asanuma, A. Berg, D.D. Bosch, Todd Caldwell, C. Holifield-Collins, J. Martinez-Fernandez, H. McNairn, P.J. Starks, Z. Su, J.P. Walker
2019, Journal of Hydrometeorology (20) 1553-1569
Despite extensive efforts to maximize ground coverage and improve upscaling functions within core validation sites (CVS) of the NASA Soil Moisture Active/Passive (SMAP) mission, spatial averages of point-scale soil moisture observations often fail to accurately capture the true average of the reference pixels. Therefore, some level of pixel-scale sampling error...
Identifying changing precipitation extremes in Sub-Saharan Africa with gauge and satellite products
Laura Harrison, Chris Funk, Pete Peterson
2019, Environmental Research Letters (14)
Sparse gauge networks in Sub-Saharan Africa limit our ability to identify changing precipitation extremes with in situ observations. Given the potential for satellite and satellite-gauge precipitation products to help, we investigate how daily gridded gauge and satellite products compare for seven core climate change precipitation indices. According to a new...
