Shifting correlations among multiple aspects of weather complicate predicting future demography of a threatened species
Allison M Louthan, Jeffrey R. Walters, Adam Terando, Victoria Garcia, William F. Morris
2021, Ecosphere (12)
Most studies of the ecological effects of climate change consider only a limited number of weather drivers that could affect populations, though we know that multiple weather drivers can simultaneously affect population growth rate. Multiple drivers could simultaneously increase/decrease one vital rate, or one may increase...
Investigating the effect of enhanced oil recovery on the noble gas signature of casing gases and produced waters from selected California oil fields
R. L. Tyne, P. H. Barry, R. Karolytė, D. J. Bryne, Justin T. Kulongoski, D.J. Hillegonds, C. J. Ballentine
2021, Chemical Geology (584)
In regions where water resources are scarce and in high demand, it is important to safeguard against contamination of groundwater aquifers by oil-field fluids (water, gas, oil). In this context, the geochemical characterisation of these fluids is critical so that anthropogenic contaminants can be readily identified. The first step...
A simplified method for rapid estimation of emergency water supply needs after earthquakes
Joseph Charles Toland, Anne Wein
2021, Water (13)
Researchers are investigating the problem of estimating households with potable water service outages soon after an earthquake. Most of these modeling approaches are computationally intensive, have large proprietary data collection requirements or lack precision, making them unfeasible for rapid assessment, prioritization, and allocation of emergency water resources in large, complex...
Managing water resources on Long Island, New York, with integrated, multidisciplinary science
Robert F. Breault, John P. Masterson, Christopher Schubert, Liv M. Herdman
2021, Fact Sheet 2021-3044
Nutrients, harmful algal blooms, and synthetic chemicals like per- and polyfluoroalkyl substances (PFAS) and 1,4-dioxane threaten Long Island’s water resources by affecting the quality of drinking water and ecologically sensitive habitats that support the diverse wildlife throughout the island. Understanding the occurrence, fate, and transport of these potentially harmful chemicals...
Paleozoic and Mesozoic tectonic events west of the Waterbury Dome: Results of new mapping in the western Connecticut Highlands
William C. Burton, William J. Devlin
2021, Book chapter, Field excursions from the 2021 GSA section meetings
This field trip highlights the results of recent U.S. Geological Survey (USGS) bedrock geologic mapping in four 7.5 min quadrangles in the western Connecticut highlands near Southbury, Connecticut, USA. The rocks are broadly within what Rodgers (1985) called the Hartland and Gneiss Dome...
Evaluating the state-of-the-art in remote volcanic eruption characterization Part I: Raikoke volcano, Kuril Islands
Kathleen McKee, Cassandra Marie Smith, Kevin Reath, Eveanjelene Snee, Sean Maher, Robin S. Matoza, Simon A Carn, Larry G. Mastin, Kyle R. Anderson, David Damby, Diana Roman, Artem Degterev, Alexander Rybin, Marina Chibisova, Jelle D. Assink, Rodrigo de Negri Levia, Anna Perttu
2021, Journal of Volcanology and Geothermal Research (419) 1-14
Raikoke, a small, unmonitored volcano in the Kuril Islands, erupted in June 2019. We integrate data from satellites (including Sentinel-2, TROPOMI, MODIS, Himawari-8), the International Monitoring System (IMS) infrasound network, and global lightning detection network (GLD360) with information from local authorities and social media to retrospectively characterize the eruptive sequence...
Methods for estimating regional skewness of annual peak flows in parts of eastern New York and Pennsylvania, based on data through water year 2013
Andrea G. Veilleux, Daniel M. Wagner
2021, Scientific Investigations Report 2021-5015
Bulletin 17C (B17C) recommends fitting the log-Pearson Type III (LP−III) distribution to a series of annual peak flows at a streamgage by using the method of moments. The third moment, the skewness coefficient (or skew), is important because the magnitudes of annual exceedance probability (AEP) flows estimated by using the...
Multidisciplinary constraints on magma compressibility, the pre-eruptive exsolved volatile fraction, and the H2O/CO2 molar ratio for the 2006 Augustine eruption, Alaska
Valerie K. Wasser, Taryn M. Lopez, Kyle R. Anderson, Pavel E. Izbekov, Jeffrey T. Freymueller
2021, Geochemistry, Geophysics, Geosystems (G-Cubed) (22) 1-24
Geodetically modeled reservoir volume changes during volcanic eruptions are commonly much smaller than the observed eruptive volumes. This discrepancy is thought to be partially due to the compressibility of magma, which is largely controlled by the presence of exsolved volatiles. The 2006 eruption of Augustine Volcano, Alaska, produced an eruptive...
The Biscuit Brook and Neversink Reservoir Watersheds: Long-term investigations of stream chemistry, soil chemistry, and aquatic ecology in the Catskill Mountains, New York, USA, 1983 to 2020
Peter S. Murdoch, Douglas A. Burns, Michael McHale, Jason Siemion, Barry P. Baldigo, Gregory B. Lawrence, Scott D. George, Michael R. Antidormi, Donald B. Bonville
2021, Hydrological Processes (35)
This data note describes the Biscuit Brook and Neversink Reservoir watershed Long-Term Monitoring Data that includes: 1) stream discharge, (1983 – 2020 for Biscuit Brook and 1937 – 2020 for the Neversink Reservoir watershed), 2) stream water chemistry, 1983-2020, at 4 stations, 3) fish survey data from 16 locations in...
Evaluating the impact of watershed development and climate change on stream ecosystems: A Bayesian network modeling approach
Song S. Qian, Jonathan G. Kennen, Jason May, Mary Freeman, Thomas F Cuffney
2021, Water Research (205)
A continuous-variable Bayesian network (cBN) model is used to link watershed development and climate change to stream ecosystem indicators. A graphical model, reflecting our understanding of the connections between climate change, weather condition, loss of natural land cover, stream flow characteristics, and stream ecosystem indicators is used as the basis for...
Historical streamflow and stage data compilation for the Lower Columbia River, Pacific Northwest
Carrie L. Boudreau, Marc A. Stewart, Adam J. Stonewall
2021, Open-File Report 2020-1138
The U.S. Geological Survey mined data from a variety of national and state agencies including USGS, Oregon Water Resources Department, National Oceanic and Atmospheric Administration, Washington Department of Ecology, Pacific Northwest National Laboratory, Portland State University, and U.S. Army Corps of Engineers. A comprehensive dataset of streamflow, stage, and...
Satellites for long-term monitoring of inland U.S. lakes: The MERIS time series and application for chlorophyll-a
Bridget Seegers, P. Jeremy Werdell, Ryan Vandermeulen, Wilson Salls, Richard Stumpf, Blake Schaeffer, Tommy Owens, Sean Bailey, Joel Scott, Keith A. Loftin
2021, Remote Sensing of the Environment (266)
Lakes and other surface fresh waterbodies provide drinking water, recreational and economic opportunities, food, and other critical support for humans, aquatic life, and ecosystem health. Lakes are also productive ecosystems that provide habitats and influence global cycles. Chlorophyll concentration provides a common metric of water quality, and is frequently used...
Discharge and dissolved-solids characteristics of Blacks Fork above Smiths Fork, Wyoming, April 2018 through September 2019
Cheryl A. Eddy-Miller, Jerrod D. Wheeler, Ruth M. Law, Shaun W. Moran
2021, Scientific Investigations Report 2021-5095
The Colorado River Basin Salinity Control Forum was formed in 1973 to coordinate salinity control efforts among the States in the Colorado River Basin, including Wyoming. The Colorado River Salinity Control Act of 1974 (Public Law 93–320) authorized “the construction, operation, and maintenance of certain works in the Colorado River...
Earth Resources Observation and Science Center—Keeping watch over Earth's resources
U.S. Geological Survey
2021, Fact Sheet 2021-3052
The Earth Resources Observation and Science (EROS) Center is the largest facility of its kind within the U.S. Geological Survey. As both a science and data center, EROS serves a unique and critical role in shaping our understanding of a changing planet.EROS opened its doors in 1973 as a receiving...
Survival and abundance of polar bears in Alaska’s Beaufort Sea, 2001–2016
Jeffrey F. Bromaghin, David C. Douglas, George M. Durner, Kristin S. Simac, Todd C. Atwood
2021, Ecology and Evolution (11) 14250-14267
The Arctic Ocean is undergoing rapid transformation toward a seasonally ice-free ecosystem. As ice-adapted apex predators, polar bears (Ursus maritimus) are challenged to cope with ongoing habitat degradation and changes in their prey base driven by food-web response to climate warming. Knowledge of polar bear response to environmental change is...
Informing future condition scenario planning for habitat specialists of the imperiled pine rockland ecosystem of South Florida
Susan C. Walls
2021, Report
This project evaluated habitat conditions for two species found in the imperiled pine rockland ecosystem—the Rim Rock Crowned Snake (Tantilla oolitica) and the Key Ring-Necked Snake (Diadophis punctatus acricus). The Rim Rock Crowned Snake historically occurred in eastern Miami-Dade County (hereafter, mainland) as well as throughout the Florida Keys, whereas...
Helium-carbon systematics of groundwaters in the Lassen Peak Region
Peter Barry, David Bekaert, John Krantz, Saemundor Halldorsson, J. Maarten DeMoor, Tobias Fischer, Cynthia Werner, Peter J. Kelly, Alan Seltzer, Brian Franz, Justin T. Kulongoski
2021, Chemical Geology (584)
Carbon dioxide emissions from active subaerial volcanoes represent 20–50% of the annual global volcanic CO2 flux (Barry et al., 2014). Passive degassing of carbon from the flanks of volcanoes, and the associated accumulation of dissolved inorganic carbon (DIC) within nearby groundwater, also represents a potentially...
Alpine glacier reveals ecosystem impacts of Europe's prosperity and peril over the last millennium
Sandra O. Brugger, Margit Schwikowski, Erika Gobet, Christoph Schworer, Christian Rohr, Michael Sigl, Stephan Henne, Christian Pfister, Theo M. Jenk, Paul D. Henne, Willy Tinner
2021, Geophysical Research Letters (48)
Information about past ecosystem dynamics and human activities is stored in the ice of Colle Gnifetti glacier in the Swiss Alps. Adverse climatic intervals incurred crop failures and famines and triggered reestablishment of forest vegetation but also societal resilience through innovation. Historical documents and lake sediments record...
Cataloging tectonic tremor energy radiation in the Cascadia subduction zone
Aaron Wech
2021, Journal of Geophysical Research: Solid Earth (126)
For the past ∼12 years the Pacific Northwest Seismic Network has been automatically detecting and locating tectonic tremor across the Cascadia subduction zone, resulting in a catalog of more than 500,000 tremor epicenters to date, which has served as a valuable resource for tremor and slip research. This...
Red knot stopover population size and migration ecology at Delaware Bay, USA, 2021
James E. Lyons
2021, Report
Red Knots (Calidris canutus rufa) stop at Delaware Bay during northward migration to feed on eggs of horseshoe crabs (Limulus polyphemus). The northward migration of C. c. rufa coincides with the spawning of horseshoe crabs whose eggs are the perfect food for a migrating Red Knot (Karpanty et al. 2006,...
Frequency distribution
Ricardo A. Olea
2021, Book chapter, Encyclopedia of mathematical geosciences
Given a numerical dataset, a frequency distribution is a summary displaying fluctuations of an attribute within the range of values. In contrast to an analytical probability distribution, a frequency distribution always deals with empirically observed values (Everitt and Skondall 2010). In general, the larger...
Revisiting the declustering of spatial data with preferential sampling
Ricardo A. Olea
2021, Computers & Geosciences (157)
Preferential sampling is a form of data collection that may significantly distort the histogram and the semivariogram of spatially correlated data. Typical situations are a higher sampling density at high-valued areas favorable for mining, and highly contaminated areas in need of environmental...
A conservation-oriented SNP panel for Smallmouth Bass (Micropterus dolomieu), with emphasis on Interior Highlands lineages
James M. Long, A. T. Taylor, V. Buonaccorsi
2021, Conservation Genetics Resources (13) 47-59
The Smallmouth Bass (Micropterus dolomieu; SMB) is a widely distributed black bass species, but the southwestern edge of the species range within the Interior Highlands contains some of the most divergent ecotypes. The Neosho subspecies (M. d. velox) inhabits tributaries of the Arkansas River within the Ozark Mountains and a...
White-nose Syndrome and environmental correlates to landscape-scale bat presence
Elaine L. Barr, Alexander Silvis, Mike P. Armstrong, W. Mark Ford
2021, Wildlife Society Bulletin (45) 410-421
Over the past 13 years, White-nose Syndrome (WNS) has caused North American bat population declines and shifted community structure towards species less or unaffected by the disease. Mist-netting, acoustic surveys, and cave count data have been used to document changes in bat presence and activity through...
Establishment of baseline cytology metrics in nestling American kestrels (Falco sparverius): Immunomodulatory effects of the flame retardant isopropylated triarylphosphate isomers
Jill Jenkins, Brooke A Baudoin, Darren Johnson, Kim J. Fernie, Heather M. Stapelton, Natalie Karouna-Renier
2021, Environment International (157)
Avian populations must mount effective immune responses upon exposure to environmental stressors such as avian influenza and xenobiotics. Although multiple immune assays have been tested and applied to various avian species, antibody-mediated immune responses in non-model avian species are not commonly reported due to the lack of commercially available species-specific...
