Physicochemical controls on zones of higher coral stress where Black Band Disease occurs at Mākua Reef, Kauaʻi, Hawaiʻi
Ferdinand Oberle, Curt D. Storlazzi, Olivia M. Cheriton, Renee K. Takesue, Daniel J. Hoover, Joshua B. Logan, Christina M. Runyon, Christina A. Kellogg, Cordell Johnson, Peter W. Swarzenski
2019, Frontiers in Marine Science (6)
Pervasive and sustained coral diseases contribute to the systemic degradation of reef ecosystems, however, to date an understanding of the physicochemical controls on a coral disease event is still largely lacking. Water circulation and residence times and submarine groundwater discharge all determine the degree to which reef organisms are exposed...
Geologic cross section A–A′ through the Appalachian basin from the southern margin of the Ontario Lowlands province, Genesee County, western New York, to the Valley and Ridge province, Lycoming County, north-central Pennsylvania
Michael H. Trippi, Robert T. Ryder, Catherine B. Enomoto
2019, Scientific Investigations Map 3425
IntroductionGeologic cross section A–A′ is the fifth in a series of cross sections constructed by the U.S. Geological Survey (USGS) to document and improve understanding of the geologic framework and petroleum systems of the Appalachian basin. Cross section A–A′ provides a regional view of the structural and stratigraphic framework of the Appalachian...
Water priorities for the nation—The U.S. Geological Survey next generation water observing system
Sandra M. Eberts, Chad R. Wagner, Michael D. Woodside
2019, Fact Sheet 2019-3046
The challenges of providing safe and sustainable water supplies for human and ecological uses and protecting lives and property during water emergencies are well recognized. The U.S. Geological Survey (USGS) plays an essential role in meeting these challenges through its observational networks and renowned water science and research activities (National...
A framework for quantifying resilience to forest disturbance
Timothy Bryant, Kristen Waring, Meador Sanchez, John B. Bradford
2019, Frontiers in Forests and Global Change (2)
(Bradford) The concept of ecological resilience is an invaluable tool to assess the risk of state transitions and predict the impact of management on an ecosystem’s response to future disturbances. However, resilience is difficult to quantify and the factors contributing to resilience are often unknown in systems subject to multiple...
Factors promoting the recolonization of Oahu, Hawaii, by Bristle-thighed Curlews
T. Lee Tibbitts, Daniel R. Ruthrauff, Jared G. Underwood, Vijay P. Patil
2019, Global Ecology and Conservation (21)
Suitable habitat for Arctic-breeding migratory shorebirds is decreasing at their traditional wintering islands and atolls in the Central Pacific Flyway (i.e., Oceania) due to habitat degradation, reclamation, and sea-level rise. To maintain the size and resiliency of their populations, migratory shorebirds will need to expand their winter ranges by...
Water resources of Lincoln Parish, Louisiana
Vincent E. White
2019, Fact Sheet 2019-3019
Information concerning the availability, use, and quality of water in Lincoln 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 7.76...
Water resources of Winn Parish, Louisiana
Vincent E. White
2019, Fact Sheet 2019-3022
Information concerning the availability, use, and quality of water in Winn 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 2.74...
Water resources of Franklin Parish, Louisiana
Vincent E. White
2019, Fact Sheet 2019-3021
Information concerning the availability, use, and quality of water in Franklin 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 41.79...
Water resources of Madison Parish, Louisiana
Vincent E. White
2019, Fact Sheet 2019-3018
Information concerning the availability, use, and quality of water in Madison 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, 50.66 million...
Length-scale-dependent relationships between VS30 and topographic slopes in southern California
Jessica Lin, Seulgi Moon, Alan Yong, Lingseng Meng, Paul Davies
2019, Bulletin of the Seismological Society of America (109) 2614-2625
In engineering seismology, the time‐averaged shear‐wave velocity (VS) of the upper 30 m of the crust (VS30) is the primary parameter used in ground‐motion models to predict seismic site effects. VS30 is typically derived from in situ recordings of VS, although proxy‐based approaches (using geologic and/or geomorphometric...
Anticoagulant rodenticides in Strix owls indicate widespread exposure in west coast forests
David Wiens, Krista E. Dilione, Collin A. Eagles-Smith, Garth Herring, Damon B. Lesmeister, Mourad W. Gabriel, Greta Wengert, David C. Simon
2019, Biological Conservation (238)
Exposure of nontarget wildlife to anticoagulant rodenticides (AR) is a global conservation concern typically centered around urban or agricultural areas. Recently, however, the illegal use of ARs in remote forests of California, USA, has exposed sensitive predators, including the federally threatened northern spotted owl (Strix occidentalis caurina). We used congeneric...
Sediment and organic carbon transport and deposition driven by internal tides along Monterey Canyon, offshore California
Katherine L. Maier, Kurt J. Rosenberger, Charles K. Paull, Roberto Gwiazda, Jenny Gales, Thomas Lorenson, James P. Barry, Peter J. Talling, Mary McGann, Jingping Xu, Eve M. Lundsten, Krystle Anderson, Steven Litvin, Daniel Parsons, Michael Clare, Stephen Simmons, Esther J. Sumner, Matthieu J.B. Cartigny
2019, Deep-Sea Research Part I: Oceanographic Research Papers (153)
Submarine canyons provide globally important conduits for sediment and organic carbon transport into the deep-sea. Using a novel dataset from Monterey Canyon, offshore central California, that includes an extensive array of water column sampling devices, we address how fine-grained sediment and organic carbon are transported, mixed, fractionated, and buried along...
Reporting the limits of detection and quantification for environmental DNA assays
Katy E. Klymus, Christopher M. Merkes, Michael J. Allison, Caren S. Goldberg, Caren C. Helbing, Margaret Hunter, Craig Jackson, Richard F. Lance, Anna M. Mangan, Emy M. Monroe, Antoinette J. Piaggio, Joel P. Stokdyk, Chris C. Wilson, Catherine A. Richter
2019, Environmental DNA (2) 271-282
BackgroundEnvironmental DNA (eDNA) analysis is increasingly being used to detect the presence and relative abundance of rare species, especially invasive or imperiled aquatic species. The rapid progress in the eDNA field has resulted in numerous studies impacting conservation and management actions. However, standardization of eDNA...
Empirical estimation of natural geoelectric hazards
Jeffrey J. Love, Paul A. Bedrosian, Anna Kelbert, Greg M. Lucas
2019, Book chapter, Geomagnetically induced currents from the sun to the power grid
Geoelectric field time series can be estimated by convolving estimates of Earth‐surface impedance, such as those obtained from magnetotelluric survey measurements, with historical records of geomagnetic variation obtained at magnetic observatories. This straightforward procedure permits the mapping of geoelectric field variation during magnetic storms. Statistical analysis of the time series...
Reference intervals for blood-based biochemical analytes of southern Beaufort Sea polar bears
Tricia Fry, Kristen R. Friedrichs, Todd C. Atwood, Colleen G. Duncan, Kristin S. Simac, Tony Goldberg
2019, Conservation Physiology (7)
Accurate reference intervals (RI) for commonly measured blood-based analytes are essential for health monitoring programs. Baseline values for a panel of analytes can be used to monitor physiologic and pathophysiologic processes such as organ function, electrolyte balance, and protein catabolism. Our reference population includes 651 serum samples from polar...
Monitoring plans for Louisiana’s system-wide assessment and monitoring program (SWAMP). Version IV
Scott Hemmerling, Melissa M. Baustian, Harris Bienn, Alyssa Dausman, Alaina Grace, Lauren Grimley, Adrian McInnis, Michael Vingiello, Huy Vu, Shaye Sable, Britt Gentile, Phillip Lafargue, Ann Hijuelos, Sarai Piazza, Camille Stagg, Richard C Raynie, Edward Haywood, Syed Khalid
2019, Report
The System-Wide Assessment and Monitoring Program (SWAMP) has been envisioned as a long-term monitoring program to ensure a comprehensive network of coastal data collection activities is in place to support the development, implementation, and adaptive management of the coastal protection and restoration program within coastal Louisiana. The Coastwide Reference Monitoring...
Assessing beach and island habitat loss in the Chesapeake Bay and Delmarva coastal bay region, USA, through processing of Landsat TM and OLI imagery: A case study
Paul R. Marban, Jennifer M. Mullinax, Jonathan P. Resop, Diann Prosser
2019, Remote Sensing Applications: Society and Environment (16)
Beaches and islands provide economic value to humans and critical habitat for breeding and foraging wildlife. These ecosystems, however, are being severely impacted by global climate change and sea level rise through increased erosion and frequency of inundation. The case study presented here aimed to document island loss in the...
The first 3D conductivity model of the contiguous US: Reflections on geologic structure and application to induction hazards
Anna Kelbert, Paul A. Bedrosian, Benjamin S. Murphy
2019, Book chapter, Geomagnetically induced currents from the Sun to the power grid
Estimation of ground level geoelectric fields has been identified by the National Space Weather Action Plan as a key component of assessment and mitigation of space weather impacts on critical infrastructure. Estimates of spatially and temporally variable electric fields are used to generate statistically based hazard maps and show promise...
Moving at the speed of flight: Dabbling duck-movement rates and the relationship with electronic tracking interval
Fiona McDuie, Michael L. Casazza, David A. Keiter, Cory T. Overton, Mark P. Herzog, Cliff L. Feldheim, Joshua T. Ackerman
2019, Wildlife Research (46) 533-543
Context. Effective wildlife management requires information on habitat and resource needs, which can be estimated with movement information and modelling energetics. One necessary component of avian models is flight speeds at multiple temporal scales. Technology has limited the ability to accurately assess flight speeds, leading to estimates of questionable accuracy,...
Characterizing large earthquakes before rupture is complete
Diego Melgar, Gavin P. Hayes
2019, Science Advances (5)
Whether large and very large earthquakes are distinguishable from each other early on in the rupture process has been a subject often debated over the past several decades. Studies have shown that the frequency content of radiated seismic energy in the first few seconds of an earthquake scales with the...
Global earthquake response with imaging geodesy: recent examples from the USGS NEIC
William D. Barnhart, Gavin P. Hayes, David J. Wald
2019, Remote Sensing (11)
The U.S. Geological Survey National Earthquake Information Center leads real-time efforts to provide rapid and accurate assessments of the impacts of global earthquakes, including estimates of ground shaking, ground failure, and the resulting human impacts. These efforts primarily rely on analysis of the seismic wavefield to characterize the source of...
Characterization and evaluation of controls on post-fire streamflow response across western U.S. watersheds
Samuel Saxe, Terri S. Hogue, Lauren E. Hay
2019, Hydrology and Earth System Sciences (22) 1221-1237
This research investigates the impact of wildfires on watershed flow regimes, specifically focusing on evaluation of fire events within specified hydroclimatic regions in the western United States, and evaluating the impact of climate and geophysical variables on response. Eighty-two watersheds were identified with at least 10 years of continuous pre-fire...
A process-based model of pre-eruption seismicity patterns and its use for eruption forecasting at dormant stratovolcanoes
Randall A. White, Wendy A. McCausland
2019, Journal of Volcanology and Geothermal Research (382) 267-297
Using long-term data sets, the eruptive size, timing and style can typically be successfully forecast for dormant volcanoes using current monitoring data and knowledge of precursory eruptive patterns. The USAID-USGS Volcano Disaster Assistance Program (VDAP) utilizes seismic data over multiple eruption cycles and across volcano types to successfully forecast eruption...
3-D seismic tomographic study of Sinabung Volcano, Northern Sumatra, Indonesia, during the inter-eruptive period October 2010-July 2013
Novianti Indrastuti, Andri Dian Nugraha, Wendy A. McCausland, Mohammad Hendrasto, Hendra Gunawan, Ridwan Kusnandar, K. Kasbani, Kristianto
2019, Journal of Volcanology and Geothermal Research (382) 197-209
We estimated 3D P-wave velocity (Vp), S-wave velocity (Vs), and Vp/Vs tomographic structures in and around the Sinabung Volcano area, Northern Sumatra, Indonesia during the intereruptive period between October 2010 and July 2013 using high-quality P- and S-wave phases from > 600 local volcano tectonic (VT) earthquakes and more than...
Relations of dissolved-oxygen variability, selected field constituents, and metabolism estimates to land use and nutrients in high-gradient Boston Mountain streams, Arkansas
Billy Justus, Lucas Driver, J.J. Green, Nathan Wentz
2019, Environmental Monitoring and Assessment (10)
Continuous monitoring data can be extremely useful for assessing water quality conditions particularly for variables that exhibit dynamic diel swings such as dissolved oxygen. As a means of evaluating dissolved oxygen criteria used by the Arkansas Department of Environmental Quality (ADEQ) for assessing this stream class, we compared continuous dissolved...
