Matthew J. Germino, Brynne E. Lazarus
2020, Rangeland Ecology and Management (73) 737-740
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Publication Extents
Not all publications have extents, not all extents are completely accurateJulieta Gomez-Fragoso
2020, Scientific Investigations Map 3454
During January 23–30, 2018, the U.S. Geological Survey, in cooperation with the Puerto Rico Electric Power Authority, conducted a bathymetric survey of Lago Carite primarily to update estimates of the contemporary reservoir storage capacity and sedimentation rate. Previously designated transect lines were surveyed by using a depth sounder coupled to...
James H. Larson, Enrika Hlavacek, Nathan R. De Jager, Mary Anne Evans, Timothy Wynne
2020, Ecology and Evolution (10) 3968-3976
Since the early 2000s, Lake Erie has been experiencing annual cyanobacterial blooms that often cover large portions of the western basin and even reach into the central basin. These blooms have affected several ecosystem services provided by Lake Erie to surrounding communities (notably drinking water quality). Several modeling efforts have...
Joel P. Stokdyk, Aaron D. Firnstahl, James F. Walsh, Susan K. Spencer, Jane R. de Lambert, Anita C. Anderson, Lih-in W. Rezania, Burney A Kieke, Mark A. Borchardt
2020, Water Research (178)
Drinking water supply wells can be contaminated by a broad range of waterborne pathogens. However, groundwater assessments frequently measure microbial indicators or a single pathogen type, which provides a limited characterization of potential health risk. This study assessed contamination of wells by testing for viral, bacterial, and protozoan pathogens and...
David J. Wald
2020, Earthquake Spectra (36) 1412-1447
Earthquake Early Earning (EEW) entails detection of initial earthquake shaking and rapid estimation and notification to users prior to imminent, stronger shaking. EEW is coming to the U.S. West Coast. But what are the technical and social challenges to delivering actionable information on earthquake shaking before it arrives? Although there...
Chris Funk, P. Peterson, Martin Landsfeld, Frank Davenport, A Becker, U Schneider, Diego Pedreros, Amy McNally, Kristi Arsenault, Laura Harrison, S. Shukla
2020, Book chapter, Satellite Precipitation Measurement
To support global drought early warning, the Climate Hazards Center (CHC) at the University of California, Santa Barbara developed the Climate Hazards center InfraRed Precipitation with Stations (CHIRPS) dataset, in collaboration with the US Geological Survey and NASA SERVIR. Specifically designed to support early warning applications, CHIRPS has high a...
David R. Smith, Mitchell J. Eaton, Jill J. Gannon, Timothy P. Smith, Eric L. Derleth, Jonathan Katz, Kirk F. Bosma, Elise Leduc
2020, Open-File Report 2019-1115
The collective set of decisions involved with the restoration of degraded wetlands is often more complex than considering only ecological responses and outcomes. Restoration is commonly driven by a complex interaction of social, economic, and ecological factors representing the mandate of resource stewards and the values of stakeholders. The authors...
Jon J. Major, Gordon E. Grant, Kristin Sweeney, Adam R. Mosbrucker
2020, Scientific Investigations Report 2020-5027
Volcanic eruptions can affect landscapes in many ways and consequently alter erosion and the fluxes of water and sediment. Hydrologic and geomorphic responses to volcanic disturbances are varied in both space and time, and, in some instances, can persist for decades to centuries. Understanding the broad context of how landscapes...
Jessica Braunstein, Joseph D. Clark, Ryan H Williamson, William H Stiver
2020, Journal of Wildlife Management (84) 1038-1050
Conflicts between humans and wildlife have become increasingly important challenges for resource managers along the urban‐wildland interface. Food conditioning (i.e., reliance by an animal on anthropogenic foods) of American black bears (Ursus americanus ) is related to conflict behavior (i.e., being bold or aggressive toward humans, consuming human food or...
Mike R. James, Brett B Carr, Fiona D’Arcy, Angela K. Diefenbach, Hannah R. Dietterich, Alessandro Fornaciai, Einat Lev, Emma J Liu, David C. Pieri, Mel Rodgers, Benoit Smets, Akihiko Terada, Felix W von Aulock, Thomas R. Walter, Kieran T Wood, Edgar U Zorn
2020, Volcanica (3) 67-114
Unoccupied aircraft systems (UAS) are developing into fundamental tools for tackling the grand challenges in volcanology; here, we review the systems used and their diverse applications. UAS can typically provide image and topographic data at two orders of magnitude better spatial resolution than space-based remote sensing, and close-range observations at...
Eduardo Gonzalez, Patrick B. Shafroth, Steven R. Lee, Steven M. Ostoja, Matthew L. Brooks
2020, Biological Invasions (22) 2339-2356
Plant community responses to biocontrol of invasive plants are understudied, despite the strong influence of the composition of replacement vegetation on ecosystem functions and services. We studied the vegetation response to a folivore beetle (Diorhabda genus, Coleoptera) that has been introduced along southwestern US river valleys to control the invasion of...
Autumn Iverson, Allison Benscoter, Ikuko Fujisaki, Margaret Lamont, Kristen Hart
2020, Frontiers in Marine Science (7)
Along migration corridors, animals can face natural and anthropogenic threats that differ from those in breeding and non-breeding residence areas. Satellite telemetry can aid in describing the timing and location of these migrations. We use this tool with switching state-space modeling and line kernel density estimates to identify migration corridors...
Amy M Marcarelli, Colden V. Baxter, Joseph R. Benjamin, Yo Miyake, Masashi Murakami, K.D. Fausch, Shigeru Nakano
2020, Ecology (101)
Networks of direct and indirect biotic interactions underpin the complex dynamics and stability of ecological systems, yet experimental and theoretical studies often yield conflicting evidence regarding the direction (positive or negative) or magnitude of these interactions. We revisited pioneering data sets collected at the deciduous forested...
Vince Quitoriano, David J. Wald
2020, Frontiers in Earth Science (8)
The U.S. Geological Survey (USGS) “Did You Feel It?” (DYFI) system is an automatic method for rapidly collecting macroseismic intensity data from Internet users’ shaking and damage reports and for generating intensity maps immediately following felt earthquakes. DYFI has been in operation for nearly two decades (1999-2019) in the United...
David Safine, Mark S. Lindberg, Kate Martin, Sandra L. Talbot, Ted Swem, John M. Pearce, Neesha Stellrecht, Kevin Sage, Ann E. Riddle, Kyrstal Fales, Tuula E. Hollmen
2020, Endangered Species Research (41) 349-360
The Steller’s eider (Polysticta stelleri) is a sea duck that breeds in Arctic tundra regions of Russia and Alaska. The Alaska-breeding population is listed as threatened under the U.S. Endangered Species Act because of a perceived contraction of their breeding range in North America. Understanding demographic rates of...
Qiang Zhou, George Z. Xian, Hua Shi
2020, Remote Sensing (12)
The recently released Landsat Analysis Ready Data (ARD) over the United States provides the opportunity to investigate landscape dynamics using dense time series observations at 30-m resolution. However, the dataset often contains data gaps (or missing data) because of cloud contamination or data acquisition strategy. We present a new algorithm...
Michael E. Brownfield, Christopher J. Schenk, Tracey J. Mercier, Marilyn E. Tennyson, Cheryl A. Woodall, Thomas M. Finn, Phuong A. Le, Janet K. Pitman, Ronald M. Drake II, Stephanie B. Gaswirth, Heidi M. Leathers-Miller
2020, Fact Sheet 2020-3003
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 30.5 trillion cubic feet of tight gas in the Grand Erg/Ahnet Province of Algeria....
Samuel R Fisher, Lelani A Del Pinto, Robert N. Fisher
2020, PeerJ (8)
The brown anole, Anolis sagrei, is a native species to the Caribbean; however, A. sagrei has invaded multiple parts of the USA, including Florida, Louisiana, Hawai’i and more recently California. The biological impacts of A. sagrei invading California are currently unknown. Evidence from the invasion in Taiwan shows that they spread quickly and when immediate...
Richard M. Iverson
2020, Perspectives of Earth and Space Scientists (1)
Landslide dynamics is the branch of science that seeks to understand the motion of landslides by applying Newton's laws. This memoir focusses on a 40‐year effort to understand motion of highly mobile—and highly lethal—landslides such as debris avalanches and debris flows. A major component of this work entailed development and...
Robert E. Anthony, Adam T. Ringler, David C. Wilson, Manochehr Bahavar, Keith D. Koper
2020, Seismological Research Letters (91) 1694-1706
Power spectral density (PSD) estimates are widely used in seismological studies to characterize background noise conditions, assess instrument performance, and study quasi‐stationary signals that are difficult to observe in the time domain. However, these studies often utilize different processing techniques, each of which can inherently bias the resulting PSD estimates....
Monica Kohler, Deborah E. Smith, Jennifer Andrews, Angela I. Chung, Renate Hartog, Ivan Henson, Douglas D. Given, Robert Michael deGroot, Stephen Robert Guiwits
2020, Seismological Research Letters (91) 1763-1775
The ShakeAlert Earthquake Early Warning System is designed to automatically identify and characterize the initiation and rupture evolution of large earthquakes, estimate the intensity of ground shaking that will result, and deliver alerts to people and systems that may experience shaking, prior to the occurrence of shaking at their location....
Joseph P. Levitt, Sille L. Larsen
2020, Open-File Report 2019-1148
The Vermont Department of Health and the U.S. Geological Survey analyzed the concentrations of chloride in groundwater samples collected from 4,319 domestic wells across Vermont between 2011 and 2018. Ninety of these wells were sampled twice and the remaining 4,229 were sampled once. This sample size represents approximately 4 percent...
James R. Degnan, Bruce D. Lindsey, Joseph Patrick Levitt, Zoltan Szabo
2020, Science of the Total Environment (723)
Groundwater age distributions developed from carbon-14 (14C), tritium (3H), and helium-4 (4He) concentrations, along with aquifer hydrologic position, water type, and redox conditions, were compared to geogenic contaminants of concern (GCOC) from 252 public-supply wells in six Atlantic and Gulf Coastal Plain unconsolidated-sediment aquifers. Concentrations of one or more...
Christopher J. Jarchow, William J. Waugh, Kamel Didan, Armando Barreto-Munoz, Stefanie M. Herrmann, Pamela L. Nagler
2020, Hydrological Processes (34) 2739-2749
Because groundwater recharge in dry regions is generally low, arid and semiarid environments have been considered well‐suited for long‐term isolation of hazardous materials (e.g., radioactive waste). In these dry regions, water lost (transpired) by plants and evaporated from the soil surface, collectively termed evapotranspiration (ET), is usually the primary discharge...
Megan E. Brown, Miranda R. Torkelson, Glenn H. Olsen, Ashley Krisp, Barry K. Hartup
2020, Zoo Biology (39) 276-280
Endangered whooping cranes (Grus americana ) have been produced in captivity for reintroduction programs since the 1980s, using techniques such as artificial insemination, multiple clutching, and captive‐rearing to speed recovery efforts. Chicks are often hand‐reared (HR) by caretakers in crane costumes, socialized into groups and released together, unlike...