Sulphide petrology and ore genesis of the stratabound Sheep Creek sediment-hosted Zn–Pb–Ag–Sn prospect, and U–Pb zircon constraints on the timing of magmatism in the northern Alaska Range
Cynthia Dusel-Bacon, John N. Aleinikoff, Suzanne Paradise, John F. Slack
2024, Canadian Journal of Earth Sciences (61) 471-504
The Sheep Creek prospect is a stratabound Zn–Pb–Ag–Sn massive sulfide occurrence in the Bonnifield mining district, northern Alaska Range. The prospect is within a quartz–sericite–graphite–chlorite schist unit associated with Devonian carbonaceous and siliceous metasedimentary rocks. Volcanogenic massive sulfide (VMS) deposits in the district are hosted in felsic...
Chemistry, growth, and fate of the unique, short-lived (2019–2020) water lake at the summit of Kīlauea Volcano, Hawaii
Patricia A. Nadeau, Shaul Hurwitz, Sara Peek, Allan Lerner, Edward F. Younger, Matthew R. Patrick, David Damby, R. Blaine McCleskey, Peter J. Kelly
2024, Geochemistry, Geophysics, Geosystems (25)
Less than a year after the 2018 Kīlauea caldera collapse and eruption, water appeared in newly deepened Halemaʻumaʻu crater. The lake—unprecedented in the written record—grew to a depth of ∼50 m before lava from the December 2020 eruption boiled it away. Surface water heightened concerns of potential phreatic...
Trace silicon determination in biological samples by inductively coupled plasma mass spectrometry (ICP-MS): Insight into volatility of silicon species in hydrofluoric acid digests for optimal sample preparation and introduction to ICP-MS
Zikri Arslan, Heather A. Lowers
2024, Minerals (14)
A method for the determination of trace levels of silicon from biological materials by inductively coupled plasma mass spectrometry (ICP-MS) has been developed. The volatility of water-soluble silicon species, hexafluorosilicic acid (H2SiF6), and sodium metasilicate (Na2SiO3) was investigated by evaporating respective solutions (50 µg/mL silicon) in nitric acid (HNO3),...
Deep learning for water quality
Wei Zhi, Alison P. Appling, Heather E. Golden, Joel Podgorski, Li Li
2024, Nature Water (2) 228-241
Understanding and predicting the quality of inland waters are challenging, particularly in the context of intensifying climate extremes expected in the future. These challenges arise partly due to complex processes that regulate water quality, and arduous and expensive data collection that exacerbate the issue of data...
Landsat Next
U.S. Geological Survey
2024, Fact Sheet 2024-3005
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Using global remote camera data of a solitary species complex to evaluate the drivers of group formation
Joshua P. Twining, Chris Sutherland, Andrzej Zalewski, Michael V. Cove, Johnny Birks, Oliver R. Wearn, Jessica Haysom, Anna Wereszczuk, Emiliano Manzo, Paola Bartolommei, Alessio Mortelliti, Bryn Evans, Brian D. Gerber, Thomas J. McGreevy Jr., Laken S. Ganoe, Juliana Masseloux, Amy E. Mayer, Izabela Wierzbowska, Jan Loch, Jocelyn Akins, Donovan Drummey, William McShea, Stephanie Manke, Lain Pardo, Andy Boyce, Sheng Li, Roslina Binti Ragai, Ronglarp Sukmasuang, Alvaro Jose Villafane Trujillo, Carlos Lopez-Gonzalez, Nalleli Elvira Lara-Diaz, Olivia Cosby, Cristian N. Waggershauser, Jack Bamber, Frances Stewart, Jason Fisher, Angela K. Fuller, Kelly Perkins, Roger A. Powell
2024, PNAS (121)
The social system of animals involves a complex interplay between physiology, natural history, and the environment. Long relied upon discrete categorizations of “social” and “solitary” inhibit our capacity to understand species and their interactions with the world around them. Here, we use a globally distributed camera trapping dataset to test...
Geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers within parts of Bandera and Kendall Counties, Texas
Allan K. Clark, Robert R. Morris, Alexis P. Lamberts
2024, Scientific Investigations Map 3518
The karstic Edwards and Trinity aquifers are classified as major sources of water in south-central Texas by the Texas Water Development Board. During 2019–23 the U.S. Geological Survey, in cooperation with the Edwards Aquifer Authority, mapped and described the geology and hydrostratigraphy of the rocks composing the Edwards and Trinity...
Habitat amount and edge effects, not perch proximity, nest exposure, or vegetation diversity affect cowbird parasitism in agricultural landscapes
Matthew D. Stephenson, Kyla L. Yuza, Lisa A. Schulte, Robert W. Klaver
2024, Landscape Ecology (39)
ContextPrior research documented relationships between brown-headed cowbird (Molothrus ater) brood parasitism and edge effects, proximity of perches, and nest exposure. Those relationships have not been evaluated in agroecosystems containing extremes of fragmentation and vegetation diversity.ObjectivesWe compared three existing hypotheses on how cowbirds locate host nests with...
Growth, survival, and cohort formation of juvenile Lost River (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California—2021–22 monitoring report
Barbara A. Martin, John M. Caldwell, Jacob R. Krause, Alta C. Harris
2024, Open-File Report 2024-1013
Executive SummaryThe work reported in this publication provides updated data and interpretation for sampling years 2015 and 2022 of the juvenile monitoring project. The study objectives, background, study area, species description, and methods remained the same or similar throughout the years, while the executive summary, results, and discussion were updated...
Climate-induced tree-mortality pulses are obscured by broad-scale and long-term greening
Yuchao Yan, Shilong Piao, William M. Hammond, Anping Chen, Songbai Hong, Xu Hao, Seth M. Munson, Ranga B. Myneni, Craig D. Allen
2024, Nature Ecology & Evolution (8) 912-923
Vegetation greening has been suggested to be a dominant trend over recent decades, but severe pulses of tree mortality in forests after droughts and heatwaves have also been extensively reported. These observations raise the question of to what extent the observed severe pulses of tree mortality...
Too simple, too complex, or just right? Advantages, challenges, and guidance for indicators of genetic diversity
Sean M. Hoban, Jessica M. da Silva, Alice C. Hughes, Margaret Hunter, Belma Kalamujic Stroil, Linda Laikre, Alicia Mastretta-Yanes, Katie L Millette, Ivan Paz-Vinas, Lucia Ruiz Bustos, Robyn E. Shaw, Cristiano Vernesi, the Coalition for Conservation Genetics
2024, BioScience
Measuring genetic diversity of wild species using DNA-based data remains resource intensive and time consuming for nearly all species. However, genetic assessments are needed for global conservation commitments, including the Convention on Biological Diversity, and for governments and managers to evaluate conservation progress, as well as prioritizing species and...
The decision maker’s lament: If I only had some science!
Gustavo A. Bisbal
2024, Ambio (53) 898-906
Environmental decision makers lament instances in which the lack of actionable science limits confident decision-making. Their reaction when the needed scientific information is of poor quality, uninformative, unintelligible, or altogether absent is often to criticize scientists, their work, or science in general. The considerations offered here...
Demographic patterns of walleye (Sander vitreus) reproductive success in a Wisconsin population
Robert P. Davis, Levi M. Simmons, Stephanie L. Shaw, Greg G. Sass, Nicholas M. Sard, Daniel A. Isermann, Wesley A. Larson, Jared Joseph Homola
2024, Evolutionary Applications (17)
Harvest in walleye Sander vitreus fisheries is size-selective and could influence phenotypic traits of spawners; however, contributions of individual spawners to recruitment are unknown. We used parentage analyses using single nucleotide polymorphisms to test whether parental traits were related to the probability of offspring survival in Escanaba Lake, Wisconsin. From 2017 to...
Characterization of the structural–stratigraphic and reservoir controls on the occurrence of gas hydrates in the Eileen Gas Hydrate Trend, Alaska North Slope
Margarita Zyrianova, Timothy Collett, Ray Boswell
2024, Journal of Marine Science Engineering (12)
One of the most studied permafrost-associated gas hydrate accumulations in Arctic Alaska is the Eileen Gas Hydrate Trend. This study provides a detailed re-examination of the Eileen Gas Hydrate Trend with a focus on the gas hydrate accumulation in the western part of the Prudhoe Bay Unit. This integrated...
Paleogene mid-crustal intrusions in the Ruby Mountains–East Humboldt Range metamorphic core complex, northeastern Nevada, USA
A.W. Snoke, C.B. Barnes, Keith A. Howard, A. Romanoski, Wayne R. Premo, C. Hetherington, A. Strike, C. Frost, P. Copeland, S-Y Lee
2024, Geosphere (20) 577-620
Middle Eocene to early Oligocene intrusions, widespread in the Ruby Mountains–East Humboldt Range metamorphic core complex, Nevada, USA, provide insights into a major Paleogene magmatic episode and its relation to tectonism in the northeastern Great Basin. These intrusions, well-exposed in upper Lamoille Canyon, range in composition from gabbro to leucomonzogranite....
Modern coral range expansion off southeast Florida falls short of Late Holocene baseline
Peter Alexander Bacon Modys, Lauren Toth, William F. Precht, Anton E. Oleinik, Richard A. Mortlock
2024, Nature Communications Earth and Environment (5)
As thermal stress and disease outbreaks decimate coral reefs throughout the tropics, there is growing evidence that higher latitude marine environments may provide crucial refuges for many at-risk, temperature-sensitive coral species. However, our understanding of how coral populations expand into new areas and sustain themselves over time...
Summary of data collected during field efficacy trials of florfenicol and oxytetracycline dihydrate in controlling mortality in walleye (Sander vitreus) because of motile Aeromonad infections
Christopher M. Merkes, Maren T. Tuttle-Lau, Susan M. Schleis, Aaron R. Cupp
2024, Open-File Report 2023-1056
Motile Aeromonad septicemia is a substantial concern during fish propagation and can be catastrophic for fish hatcheries. We tested the efficacy of two different drugs (florfenicol and oxytetracycline) offered with feed as possible treatment options to control mortality because of motile Aeromonad infection. We offered top-coated medicated feeds to hatchery-reared...
Global geologic map of Europa
Erin J. Leonard, D. Alex Patthoff, David A. Senske
2024, Scientific Investigations Map 3513
Discovered by Galileo Galilei more than 400 years ago and imaged in detail by the Voyager 2 Galileo spacecraft, Jupiter’s icy moon Europa has been a source of intrigue. A range of science investigations indicate that it contains the key ingredients for habitability, notably energy, chemistry, and liquid water. Europa’s...
BBL banding station receives a major upgrade
Megan Arts Evans
2024, Newsletter
Thanks to a generous donation from the Friends of Patuxent, the BBL Banding Station received some much needed upgrades....
Self-determination theory as an alternate conceptual foundation for motivation in natural resource research
Kyle Smith, Adam Landon, David C. Fulton, Gerard Kyle
2024, Human Dimensions of Wildlife: An International Journal 1-9
Motivation is a topic that receives substantial interest across the social sciences. However, in the human dimensions of natural resource literature, scholars have primarily treated motivation as a construct narrowly defined by the individual’s desired goal state. In contrast, self-determination theory (SDT) suggests that multiple forms of motivation can influence...
A multi-sensor approach to characterize winter water-level drawdown patterns in lakes
Abhishek Kumar, Allison H. Roy, Konstantinos Andreadis, Xinchen He, Caitlyn Butler
2024, Remote Sensing (16)
Artificial manipulation of lake water levels through practices like winter water-level drawdown (WD) is prevalent across many regions, but the spatiotemporal patterns are not well documented due to limited in situ monitoring. Multi-sensor satellite remote sensing provides an opportunity to map and analyze drawdown frequency and metrics (timing, magnitude, duration)...
Multiple records of the introduced parthenogenetic Smooth-scaled Tegulet, Gymnophthalmus underwoodi Grant 1958, in Puerto Rico
Danielle Rivera, Jan P. Zegarra, Alberto R. Puente-Rolon, Nahíra Arocho-Hernandez, Nathan J. Hostetter, Jaime A. Collazo, Rayna C. Bell
2024, Reptiles and Amphibians (31)
The introduction of invasive species to islands can be devastating to local biota. While many invasive species’ successful colonization of new habitats can be attributed to features like high fecundity or low mate selectivity, parthenogenetic species pose a unique threat in their ability to reproduce asexually at high rates. The...
The influence of anthropogenic regulation and evaporite dissolution on earthquake-triggered ground failure
Paula Madeline Burgi, Eric M. Thompson, Kate E. Allstadt, Kyle Dennis Murray, Henry Mason, Sean Kamran Ahdi, Devin Katzenstein
2024, Nature Communications (15)
Remote sensing observations of Searles Lake following the 2019 moment magnitude 7.1 Ridgecrest, California, earthquake reveal an area where surface ejecta is...
Aligning renewable energy expansion with climate-driven range shifts
Uzma Ashraf, Toni Lyn Morelli, Adam B Smith, Rebecca Hernandez
2024, Nature Climate Change (14) 242-246
Fossil fuel dependence can be reduced, in part, by renewable energy expansion. Increasingly, renewable energy siting seeks to avoid significant impacts on...
Background seismic noise levels among the Caribbean network and the role of station proximity to coastline
Justin T. Wilgus, Adam T. Ringler, Brandon Schmandt, David C. Wilson, Robert E. Anthony
2024, Seismological Research Letters (95) 2141-2152
The amplitude and frequency content of background seismic noise is highly variable with geographic location. Understanding the characteristics and behavior of background seismic noise as a function of location can inform approaches to improve network performance and in turn increase earthquake detection capabilities....
