Aquifer storage change and storage properties, 2010–2017, in the Big Chino Subbasin, Yavapai County, Arizona
Jeffrey R. Kennedy, Libby M. Wildermuth, Amy L. Read
2019, Scientific Investigations Report 2019-5060
The Big Chino Subbasin is a groundwater basin that includes the Verde River headwaters in Yavapai County in north-central Arizona. Groundwater in the southern part of the subbasin is found primarily in the Big Chino and Williamson Valleys. The former is a potential municipal water source for growing communities in...
Improved detection of rare, endangered and invasive trout using a new large-volume sampling method for eDNA capture
Adam J. Sepulveda, Jenna Schabacker, Seth Smith, Robert Al-Chokhachy, Gordon Luikart, Stephen J. Amish
2019, Environmental DNA (1) 227-237
Environmental DNA (eDNA) detection probability increases with volume of water sampled. Common approaches for collecting eDNA samples often require many samples since these approaches usually use fine filters, which restrict the volume of water that can be sampled. An alternative to collecting many, small volume water samples using fine filters...
Supply chain infrastructure restoration calculator software tool—Developer guide and user manual
Akhilesh Ojha, Bhanu Kanwar, Suzanna K. Long, Thomas G. Shoberg, Steven Corns
2019, Open-File Report 2019-1061
This report describes a software tool that calculates costs associated with the reconstruction of supply chain interdependent critical infrastructure in the advent of a catastrophic failure by either outside forces (extreme events) or internal forces (fatigue). This tool fills a gap between search and recover strategies of the Federal Emergency...
Variability in synthetic earthquake ground motions caused by source variability and errors in wave propagation models
Paul A. Spudich, Antonella Cirella, Laura Scognamiglio, Elisa Tinti
2019, Geophysical Journal International (219) 346-372
Numerical simulations of earthquake ground motions are used both to anticipate the effects of hypothetical earthquakes by forward simulation and to infer the behaviour of the real earthquake source ruptures by the inversion of recorded ground motions. In either application it is necessary to assume some Earth structure that...
ModelMuse Version 4: A graphical user interface for MODFLOW 6
Richard B. Winston
2019, Scientific Investigations Report 2019-5036
ModelMuse, a graphical user interface for groundwater-modeling software, was modified to support MODFLOW 6. ModelMuse works with two types of spatial discretization in MODFLOW 6: structured grids (DIS) and discretization by vertices (DISV). Quadtree refinement is used to generate a DISV model from a structured-grid model. The locations and weights...
Densities, diets, and growth rates of larval Alewife and Bloater in a changing Lake Michigan ecosystem.
Drew E Eppehimer, David Bunnell, Patricia Dieter, David Warner, Lauren A. Eaton, David J Wells, Edward S. Rutherford
2019, Transactions of the American Fisheries Society (148) 755-770
Variability in abiotic and biotic factors during larval stages has profound impacts on fish recruitment. In Lake Michigan, where the composition of lower trophic levels has undergone considerable changes in the past decade, managers are concerned that fish recruitment could be negatively affected. We hypothesized that spatial variation in Lake...
The evolving threat of rapid Ohia death (ROD) to Hawaii’s native ecosystems and rare plant species
Lucas B. Fortini, Lauren R. Kaiser, Lisa Keith, Jonathan Price, R. Flint Hughes, James D. Jacobi, J. B. Friday
2019, Forest Ecology and Management (448) 376-385
Hawai‘i’s most widespread native tree, ‘ōhi‘a lehua (Metrosideros polymorpha), has been dying across large areas of Hawai‘i Island mainly due to two fungal pathogens (Ceratocystis lukuohia and Ceratocystis huliohia) that cause a disease collectively known as Rapid ‘Ōhi‘a Death (ROD). Here we examine patterns of positive detections of C. lukuohia as it has been...
Seasonal and spatial variation in the location and reactivity of a nitrate-contaminated groundwater discharge zone in a lakebed
Richard L. Smith, Deborah A. Repert, Deborah Stoliker, Douglas B. Kent, Bongkeun Song, Denis R. LeBlanc, Timothy D. McCobb, J.K. Bohlke, Sung Pil Hyun, Hee Sun Moon
2019, Journal of Geophysical Research: Biogeosciences (124) 2186-2207
Groundwater discharge delivering anthropogenic N from surrounding watersheds can impact lake nutrient budgets. However, upgradient groundwater processes and changing dynamics in N biogeochemistry at the groundwater-lake interface are complex and difficult to resolve. In this study, hydrograph variations in a groundwater flow-through lake altered discharge patterns of...
Review: Endophytic microbes and their potential applications in crop management
James F. White, Kathryn L. Kingsley, Matthew T. Elmore, Satish Kumar Verma, Surendra K Gond, Kurt P. Kowalski
2019, Pest Management Science (75) 2558-2565
Endophytes are microbes (mostly bacteria and fungi) present in plants. Endophytic microbes are often functional in that they may carry nutrients from the soil into plants, modulate plant development, increase stress tolerance of plants, suppress virulence in pathogens, increase disease resistance in plants, and suppress development of competitor plant species....
Authigenic mineral texture in submarine 1979 basalt drill core, Surtsey volcano, Iceland
M.D. Jackson, S. Couper, S.V. Stan, M. Ivarsson, M.W. Czabaj, N. Tamura, D. Parkinson, L.M. Miyagi, James G. Moore
2019, Geochemistry, Geophysics, Geosystems (20) 3751-3773
Micrometer-scale maps of authigenic microstructures in submarine basaltic tuff specimens from a 1979 Surtsey volcano, Iceland, drill core acquired 15 years after eruptions terminated provide fresh perspectives for deciphering the initial alteration of oceanic basalt in a low temperature hydrothermal system. A novel investigative approach integrates synchrotron source X-ray microdiffraction...
Assessment of undiscovered oil and gas resources of the Sirte and Pelagian Basin Provinces of Libya, Tunisia, Malta, and Italy, 2019
Christopher J. Schenk, Tracey J. Mercier, Marilyn E. Tennyson, Phuong A. Le, Janet K. Pitman, Ronald M. Drake II, Michael E. Brownfield, Thomas M. Finn
2019, Fact Sheet 2019-3030
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 16.4 billion barrels of oil and 106.3 trillion cubic feet of gas in the Sirte and Pelagian Basin Provinces of Libya, Tunisia, Malta, and Italy....
Limpkin, Aramus guarauna (L., 1766) (Gruiformes, Aramidae), extralimital breeding in Louisiana is associated with availability of the invasive Giant Apple Snail, Pomacea maculata Perry, 1810 (Caenogastropoda, Ampullariidae)
Robert C. Dobbs, Jacoby Carter, Jessica L. Schulz
2019, Check List (15) 497-507
We document the first breeding record of Limpkin, Aramus guarauna (Linnaeus, 1766) (Gruiformes, Aramidae), for Louisiana, describe an additional unpublished breeding record from Georgia, as well as a possible record from Alabama, and associate these patterns with the concurrent establishment of the invasive Giant Apple Snail, Pomacea maculata Perry, 1810 (Caenogastropoda,...
Typha (cattail) invasion in North American wetlands: Biology, regional problems, impacts, ecosystem services, and management
Sheel Bansal, Shane Lishawa, Sue Newman, Brian Tangen, Douglas Wilcox, Dennis Albert, Michael J. Anteau, Michael J Chimney, Ryann L. Cressey, Edward S. DeKeyser, Kenneth J Elgersam, Sarah A Finkelstein, Joanna Freeland, Richard Grosshans, Page E. Klug, Daniel J Larkin, Beth A. Lawrence, George Linz, Joy Marburger, Gregory E. Noe, Clint Otto, Nicholas Reo, Jennifer Richards, Curtis J. Richardson, LeRoy Rodgers, Amy J Shrank, Dan Svedarsky, Steven E. Travis, Nancy Tuchman, Arnold van der Valk, Lisamarie Windham-Myers
2019, Wetlands 1-40
Typha is an iconic wetland plant found worldwide. Hybridization and anthropogenic disturbances have resulted in large increases in Typha abundance in wetland ecosystems throughout North America at a cost to native floral and faunal biodiversity. As demonstrated by three regional case studies, Typha is capable of rapidly colonizing habitats and...
Estimating density and detection of bobcats in fragmented Midwestern landscapes using spatial capture-recapture data from camera traps
Christopher N. Jacques, Robert W. Klaver, Tim C. Swearingen, Edward D. Davis, Charles R. Anderson, Jonathan A. Jenks, Christopher S. DePerno, Robert D. Bluett
2019, Wildlife Society Bulletin (43) 256-264
Camera-trapping data analyzed with spatially explicit capture–recapture (SCR) models can provide a rigorous method for estimating density of small populations of elusive carnivore species. We sought to develop and evaluate the efficacy of SCR models for estimating density of a presumed low-density bobcat (Lynx rufus) population in fragmented landscapes of...
Toxicity of aluminum to Ceriodaphnia dubia in low-hardness waters as affected by natural dissolved organic matter
John M. Besser, Danielle M. Cleveland, Chris D. Ivey, Laura Blake
2019, Environmental Toxicology and Chemistry (38) 2121-2127
We conducted a series of 7‐d toxicity tests with Ceriodaphnia dubia in dilutions of low‐hardness natural waters, which contained dissolved organic carbon (DOC) concentrations up to 10 mg/L. Stream waters were mixed with well water to achieve 2 target hardness levels (20 and 35 mg/L) and 4 DOC concentrations. Tests with aluminum...
Coastal and marine science of the U.S. Geological Survey in Woods Hole, Massachusetts
Sara Ernst
2019, General Information Product 191
The U.S. Geological Survey (USGS) Woods Hole Coastal and Marine Science Center in Woods Hole, Massachusetts, is one of three centers serving the mission of the USGS Coastal and Marine Hazards and Resources Program (CMHRP). Since its authorization by Congress in 1962, the CMHRP has served as the primary Federal...
Water resources of Richland Parish, Louisiana
Vincent E. White
2019, Fact Sheet 2019-3005
Information concerning the availability, use, and quality of water in Richland Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, about 41.73...
Facilitating adaptation to climate change while restoring a montane plant community
Christina Leopold, Steve C. Hess
2019, PLoS ONE (14)
Montane plant communities throughout the world have responded to changes in temperature regimes by shifting ranges upward in elevation, and made downslope movements to track shifts in climatic water balance. Organisms that cannot disperse or adapt biologically to projected climate scenarios in situ may decrease in distributional range and abundance...
Digital mapping of ecological land units using a nationally scalable modeling framework
Jonathan J. Maynard, Travis W. Nauman, Shawn W. Salley, Brandon T. Bestelmeyer, Michael C. Duniway, Curtis J. Talbot, Joel R. Brown
2019, Article
Ecological site descriptions (ESDs) and associated state-and-transition models (STMs) provide a nationally consistent classification and information system for defining ecological land units for management applications in the United States. Current spatial representations of ESDs, however, occur via soil mapping and are therefore confined to the spatial resolution used to map...
State of lake ecosystem conference sub Indicator: Prey fish
Brian Weidel
2019, Report, State of the Great Lakes 2017 Technical Report
Overall Assessment Status: Fair Trends 10-Year Trend: Unchanging Long-term Trend (1973-2017): Undetermined Rationale: Great Lakes prey fish community status remains ”Fair” based on diversity and percent native species, but individual lake status varied. Both diversity and percent native metrics were classified as “Good” in Lake Superior, but “Poor” in Lake Ontario (Table 1). Lakes Huron...
Determining Moho depth beneath sedimentary basins using regional Pn multiples
C. Yu, Z. Zhan, E. Hauksson, Elizabeth S. Cochran, D. Helmberger
2019, Bulletin of the Seismological Society of America (109) 1171-1179
The study of the Moho beneath thick sedimentary basins involving natural earthquakes is challenging, as low‐velocity materials often cause strong reverberations that mask Moho signals. Here, we develop a method to determine the depth of the Moho by taking advantage of the presence of the sediments. The method utilizes the...
LANDFIRE remap prototype mapping effort: Developing a new framework for mapping vegetation classification, change, and structure
Joshua J. Picotte, Daryn Dockter, Jordan Long, Brian L. Tolk, Anne Davidson, Birgit Peterson
2019, Fire (2) 1-26
LANDFIRE (LF) National (2001) was the original product suite of the LANDFIRE program, which included Existing Vegetation Cover (EVC), Height (EVH), and Type (EVT). Subsequent refinements after feedback from data users resulted in updated products, referred to as LF 2001, that now served as LANDFIRE’s baseline datasets and are the...
Assessment of undiscovered conventional oil and gas resources of the Grand Erg/Ahnet Province, Algeria, 2018
Christopher J. Schenk, Tracey J. Mercier, Marilyn E. Tennyson, Thomas M. Finn, Phuong A. Le, Janet K. Pitman, Ronald M. Drake II, Michael E. Brownfield, Stephanie B. Gaswirth, Heidi M. Leathers-Miller
2019, Fact Sheet 2019-3031
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 378 million barrels of oil and 7 trillion cubic feet of gas in the Grand Erg/Ahnet Province of Algeria....
Roost- and perch-site selection by Golden Eagles (Aquila chrysaetos) in eastern North America
Adam E. Duerr, Melissa A. Braham, Tricia A. Miller, Jeffrey Cooper, James T. Anderson, Todd E. Katzner
2019, Wilson Journal of Ornithology (131) 310-328
Birds select critical resources to meet needs that vary in response to spatial, temporal, and individual variation. As an example, perch or roost sites may be at locations that provide protection from predators, mobbing, or inclement weather. Applied to large, soaring predators, this theory suggests...
Geostatistical estimation of the bottom altitude and thickness of the Mississippi River Valley alluvial aquifer
Lynn J. Torak, Jaime A. Painter
2019, Scientific Investigations Map 3426
The Mississippi River Valley alluvial aquifer (MRVA) caps a shallow system of aquifers and confining units in the Mississippi Alluvial Plain (MAP) that extends across 45,000 square miles of the midwestern and southern United States from Illinois to Louisiana. Irrigation water from the MRVA is required to sustain extensive crop...
