A geochronological review of magmatism along the external margin of Columbia and in the Grenville-age orogens forming the core of Rodinia
Ake Johansson, Bernard Bingen, Hannu Huhma, Tod Waight, Rikke Vestergaard, Alvar Soesoo, Grazina Skridlaite, Ewa Krzeminska, Leonid Shumlyanskyy, Mark E. Holland, Christopher S. Holm-Denoma, Wilson Teixeira, Frederico Faleiros, Bruno Riberio, Joachim Jacobs, Cheng-Cheng Wang, Robert Thomas, Paul Macey, Christopher Kirkland, Michael Hartnady, Bruce Eglington, Stephen Puetz, Kent Condie
2022, Precambrian Research (371)
A total of 4344 magmatic U-Pb ages in the range 2300 to 800 Ma have been compiled from the Great Proterozoic Accretionary Orogen along the margin of the Columbia / Nuna supercontinent and from the subsequent Grenvillian collisional orogens forming the core of Rodinia. The age data are derived from...
Pervasive, preferential flow through mega-thick unsaturated zones in the Southern Great Basin
Tracie R. Jackson, Joseph M. Fenelon, Seth Reilly Gainey
2022, Groundwater (60) 496-509
Recharge from preferential flow through mega-thick (100–1,000 m) unsaturated zones is a pervasive phenomenon, as demonstrated with a case study of volcanic highland recharge areas in the Great Basin province in southern Nevada, USA. Statistically significant rising water-level trends occur for most study-area wells and resulted...
Behavioural adjustments in the social associations of a precocial shorebird mediate the costs and benefits of grouping decisions
Luke R. Wilde, Rose J. Swift, Nathan R. Senner
2022, Journal of Animal Ecology (91) 870-882
Animals weigh multiple costs and benefits when making grouping decisions. The cost-avoidance grouping framework proposes that group density, information quality and risk affect an individual’s preference for con or heterospecific groups. However, this assumes the cost–benefit balance of a particular grouping is constant spatiotemporally, which may not always be...
Linear regression model documentation for computing water-quality constituent concentrations using continuous real-time water-quality data for the Republican River, Clay Center, Kansas, July 2018 through March 2021
Brianna M. Leiker
2022, Scientific Investigations Report 2022-5016
The Republican River is the primary inflow to Milford Lake and drains areas of Kansas, Nebraska, and Colorado. Milford Lake has been listed as impaired and designated hypereutrophic by the Kansas Department of Health and Environment because of excessive nutrient loading. Milford Lake had confirmed harmful algal blooms every summer...
Gas hydrate saturation estimates, gas hydrate occurrence, and reservoir characteristics based on well log data from the hydrate-01 stratigraphic test well, Alaska North Slope
Seth S. Haines, Timothy Collett, Jun Yoneda, Naoyuki Shimoda, Ray Boswell, Norihiro Okinaka
2022, Journal of Energy and Fuels (36) 3040-3050
The Hydrate-01 Stratigraphic Test Well was drilled at the Kuparuk 7-11-12 site on the Alaska North Slope in December 2018. Sonic log data provide compressional (P) and shear (S) slowness from which we determine gas hydrate saturation (Sgh) estimates using effective medium theory. The sonic Sgh estimates compare...
Comparative toxicity of aquatic per- and polyfluoroalkyl substance exposure in three species of amphibians
Robert Wesley Flynn, Gary M. Hoover, Michael G. Iacchetta, Samuel C. Guffey, Youn J. Choi, Chloe De Perre, Belinda Huerta, Weiming Li, Jason T. Hoverman, Linda S. Lee, Maria S. Speulveda
2022, Environmental Toxicology and Chemistry (41) 1407-1415
Per- and polyfluoroalkyl substances (PFAS) are contaminants of concern due to their widespread occurrence in the environment, persistence, and potential to elicit a range of negative health effects. Per- and polyfluoroalkyl substances are regularly detected in surface waters, but their effects on many aquatic organisms are...
Toward scoping reviews of individual bird species
Christopher J W McClure, Zackery Szymczycha, David L Anderson, Francisca Helena Aguiar-Silva, Sarah Schulwitz, Leah Dunn, MIchael T Henderson, Leticia Camacho, Jose de Jesus Vargas Gonzalez, Chris N. Parish, Evan R. Buechley, Jesse D’Elia, Sanford Wilbur, Kenneth Johansen, Devin L Johnson, Soren Moller, Ivan Pokrovsky, Todd E. Katzner
2022, Ibis (164) 835-845
Scoping reviews, in which the literature on a given topic is systematically collated and summarized, aid literature searches and highlight knowledge gaps on a given topic, thus hastening scientific progress and informing conservation efforts. Because much research and conservation is targeted at the species level, ornithology...
Site- and individual-level contaminations affect infection prevalence of an emerging infectious disease of amphibians
Kelly L. Smalling, Brittany A. Mosher, Luke R. Iwanowicz, Keith A. Loftin, Adam Boehlke, Michelle L. Hladik, Carly R. Muletz-Wolz, Nandadevi Cortes-Rodriguez, Robin Femmer, Evan H. Campbell Grant
2022, Environmental Toxicology and Chemistry (41) 781-791
Emerging infectious disease outbreaks are one of multiple stressors responsible for amphibian declines globally. In the northeastern United States, ranaviral diseases are prevalent in amphibians and other ectothermic species, but there is still uncertainty as to whether their presence is leading to population level effects. Further, there is also uncertainty...
Assessing vegetation recovery from energy development using a dynamic reference approach
Adrian P. Monroe, Travis W. Nauman, Cameron L. Aldridge, Michael S. O’Donnell, Michael C. Duniway, Brian S. Cade, Daniel Manier, Patrick J. Anderson
2022, Ecology and Evolution (12) 1-22
Ecologically relevant references are useful for evaluating ecosystem recovery, but references that are temporally static may be less useful when environmental conditions and disturbances are spatially and temporally heterogeneous. This challenge is particularly acute for ecosystems dominated by sagebrush (Artemisia spp.), where communities may require decades to recover from disturbance. We...
Face-off: Novel depredation and nest defense behaviors between an invasive and a native predator in the Greater Everglades Ecosystem, Florida, USA
Andrea Faye Currylow, Matthew F. McCollister, Gretchen Erika Anderson, Jillian Maureen Josimovich, Austin Lee Fitzgerald, Christina M. Romagosa, Amy A. Yackel Adams
2022, Ecology and Evolution (12) 1-6
We describe several photo-documented novel interactions between intraguild predators in southern Florida—the native bobcat (Lynx rufus) and the invasive Burmese python (Python bivittatus). Over several days we documented a bobcat's depredation of an unguarded python nest and subsequent python nest defense behavior following the return of both animals to the...
Higher temperature sensitivity of flowering than leaf-out alters the time between phenophases across temperate tree species
Xiaojun Geng, Yongshuo F. Fu, Shilong Piao, Fanghua Hao, Hans J. De Boeck, Xuan Zhang, Shouzhi Chen, Yahui Guo, Janet S. Prevey, Yann Vitasse, Josep Penuelas, Ivan A. Janssens, Nils Christian Stenseth
2022, Global Ecology and Biogeography (31) 901-911
AimThe aims of this study were to evaluate the changes in the length of the time period between leaf-out and flowering across temperate tree species, and associate these changes with potential physiological and environmental drivers to enhance mechanistic insight into these phenomena.LocationCentral Europe.<h3 id="geb13463-sec-0003-title"...
A unified perspective of seismicity and fault coupling along the San Andreas Fault
Y.-K. Liu, Z. Ross, Elizabeth S. Cochran, N. Lapusta
2022, Science Advances (8)
The San Andreas Fault (SAF) showcases the breadth of possible earthquake sizes and occurrence behavior; in particular, the central SAF is a microcosm of such diversity. This section also exhibits the spectrum of fault coupling from locked to creeping. Here, we show that the observations of aseismic slip, temporal clustering...
Coupling process-based and empirical models to assess management options to meet conservation goals
Catherine S. Jarnevich, Catherine Cullinane Thomas, Nicholas E. Young, Perry Grissom, Dana M. Backer, Leonardo Frid
2022, Biological Conservation (256) 1-13
Conservation lands face a mounting threat of ecosystem transformation and the loss of biodiversity from the invasion of fire-prone perennial and annual grasses. Managers must make difficult decisions to find efficient ways to expend limited resources to manage large and complex landscapes amidst substantial uncertainty regarding effective treatment strategies, climates,...
INHABIT: A web-based decision support tool for invasive plant species habitat visualization and assessment across the contiguous United States
Peder Engelstad, Catherine S. Jarnevich, Terri Hogan, Helen Sofaer, Ian S. Pearse, Jennifer Sieracki, Neil Frakes, Julia Sullivan, Nicholas E. Young, Janet S. Prevey, Pairsa Nicole Belamaric, Jillian Marie Laroe
Daniel de Paiva Silva, editor(s)
2022, PLoSOne (17) 1-15
Narrowing the communication and knowledge gap between producers and users of scientific data is a longstanding problem in ecological conservation and land management. Decision support tools (DSTs), including websites or interactive web applications, provide platforms that can help bridge this gap. DSTs can most effectively disseminate and translate research results...
Fluoride in thermal and non-thermal groundwater: Insights from geochemical modeling
D. Kirk Nordstrom
2022, Science of the Total Evironment (824)
High fluoride (F) groundwaters (>1 mg/L) have been recognized as a water quality problem for nearly a century and occur in many countries worldwide. The affected aquifers can be sedimentary, metamorphic or igneous rocks, but the process giving rise to high-F concentrations has been...
Elevations of mangrove forests of Pohnpei, Micronesia
Joanna C Ellison, Kevin Buffington, Karen M. Thorne, Dean B. Gesch, Jeffrey Irwin, Jeffrey J. Danielson
2022, Estuarine, Coastal and Shelf Science (268)
Mangrove surface elevation is the crux of mangrove vulnerability to sea level rise. Local topography influences critical periods of tidal inundation that govern distributions of mangrove species and dictates future distributions. This study surveyed ground surface elevations of the extensive mangroves of Pohnpei,...
New insights into the occurrence and implications of mobile water in gas hydrate systems
Ray Boswell, Koji Yamamoto, Machiko Tamaki, Timothy S. Collett, George Moridis, Evgeniy Myshakin
2022, Journal of Energy and Fuels (36) 2447-2461
Gas hydrate production technologies commonly feature reservoir depressurization. Depressurization occurs when a pressure gradient is established in a well, drawing mobile water from the reservoir and reducing reservoir pressure. As such, the occurrence of mobile water is a necessary condition for effective gas production from gas...
Volcano geodesy using InSAR in 2020: The past and next decades
Michael Poland, Howard Zebker
2022, Bulletin of Volcanology (84)
The study of volcano deformation has grown significantly through they year 2020 since the development of interferometric synthetic aperture radar (InSAR) in the 1990s. This relatively new data source, which provides evidence of changes in subsurface magma storage and pressure without the need for ground-based equipment, has matured during the past...
Permeability measurement and prediction with nuclear magnetic resonance analysis of gas hydrate-bearing sediments recovered from Alaska North Slope 2018 Hydrate-01 Stratigraphic Test Well
Jun Yoneda, Kiyofumi Suzuki, Yusuke Jin, Satoshi Ohtsuki, Timothy S. Collett, Ray Boswell, Yuki Maehara, Norihiro Okinaka
2022, Energy and Fuels Journal (36) 2515-2529
Permeability of porous media, such as oil and gas reservoirs, is the crucial material parameter for predicting their hydraulic behavior. A nuclear magnetic resonance (NMR) analyzer is widely used as a powerful tool to predict permeability of various media. NMR T2 (transverse or spin–spin) relaxation time distribution, which...
Validating predicted site response in sedimentary basins from 3D ground motion simulations
Chukwuebuka C Nweke, Jonathan P. Stewart, Robert Graves, Christine A. Goulet, Scott J Brandenberg
2022, Earthquake Spectra (38) 2135-2161
We introduce procedures to validate site response in sedimentary basins as predicted using ground motion simulations. These procedures aim to isolate contributions of site response to computed intensity measures relative to those from seismic source and path effects. In one of the validation procedures, simulated motions are...
Characterizing unrest: A retrospective look at 20 years of gas emissions and seismicity at Iliamna Volcano, Alaska
Cynthia Werner, John Power, Peter J. Kelly, Stephanie Prejean, Christoph Kern
2022, Journal of Volcanology and Geothermal Research (422)
Episodes of unrest are not as well documented as eruptions at most volcanoes globally. Iliamna is an andesitic stratovolcano in the Cook Inlet of Alaska that has experienced several episodes of unrest. Unrest in 1996 was previously studied. Here we present data...
Exploring genetic variation and population structure in a threatened species, Noturus placidus, with whole-genome sequence data
Lynsey K. Whitacre, Mark L. Wildhaber, Gary S. Johnson, Harly J. Durbin, Troy N. Rowan, Peoria Tribe, Robert D. Schnabel, Tendai Mhlanga-Mutangadura, Vernon M. Tabor, Daniel Fenner, Jared E. Decker
2022, G3: Genes, Genomes, Genetics (12)
The Neosho madtom (Noturus placidus) is a small catfish, generally less than 3 inches in length, unique to the Neosho-Spring River system within the Arkansas River Basin. It was federally listed as threatened in 1990, largely due to habitat loss. For conservation efforts, we generated whole-genome sequence data from...
Kelp-forest dynamics controlled by substrate complexity
Zachary Randell, Michael C. Kenner, Joseph A. Tomoleoni, Julie L. Yee, Mark Novak
2022, PNAS (119)
The factors that determine why ecosystems exhibit abrupt shifts in state are of paramount importance for management, conservation, and restoration efforts. Kelp forests are emblematic of such abruptly shifting ecosystems, transitioning from kelp-dominated to urchin-dominated states around the world with increasing frequency, yet the underlying processes...
Classifying behavior from short-interval biologging data: An example with GPS tracking of birds
Silas Bergen, Manuela Huso, A. Duerr, Missy A Braham, Todd E. Katzner, Sara Schmuecker, Tricia A. Miller
2022, Ecology and Evolution (12)
Recent advances in digital data collection have spurred accumulation of immense quantities of data that have potential to lead to remarkable ecological insight, but that also present analytic challenges. In the case of biologging data from birds, common analytical approaches to classifying movement behaviors are largely inappropriate for these...
Analyzing the effects of land cover change on the water balance for case study watersheds in different forested ecosystems in the USA
Nathan C. Healey, Jennifer Rover
2022, Land (11)
We analyzed impacts of interannual disturbance on the water balance of watersheds in different forested ecosystem case studies across the United States from 1985 to 2016 using a remotely sensed long-term land cover monitoring record (U.S. Geological Survey Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.0 Science products), gridded...
