Magma storage and transport timescales for the 1959 Kīlauea Iki eruption and implications for diffusion chronometry studies using time-series samples versus tephra deposits
Kendra J. Lynn, Rosalind L. Helz
2023, Bulletin of Volcanology (85)
Complex crystal cargo in basaltic eruptions has the potential to yield diverse insights on pre- and syn-eruptive timescales of magma storage and transport. Research on eruption products from the 1959 eruption from Kīlauea Iki Crater at Kīlauea volcano (Hawai‘i) demonstrates that time-series samples collected during an eruption can...
Environmental monitoring for invasive fungal pathogens of ʽŌhiʽa (Metrosideros polymorpha) on the Island of Hawaiʽi
Carter T. Atkinson, Kylle Roy
2023, Biological Invasions (25) 399-410
The invasive rust Austropuccina psidii was detected in the Hawaiian Islands in 2005 and has become widely established throughout the archipelago in both native and introduced species of Myrtaceae. Initial predictions about the impacts of the fungus on native ʽōhiʽa lehua (Metrosideros polymorpha), a keystone native tree,...
Partnering in search of answers: Seabird die-offs in the Bering and Chukchi Seas
Robb A. S. Kaler, Gay Sheffield, S Backensto, Jackie Lindsey, T. Jones, J. Parrish, B Ahmasuk, Barbara Bodenstein, Robert J. Dusek, Caroline R. Van Hemert, Matthew M. Smith, P Schwalenberg
2023, Report, Arctic Report Card 2022 (NOAA Technical Report)
Prior to 2015, seabird die-offs in Alaskan waters were rare; they typically occurred in mid-winter, linked to epizootic disease events or above-average ocean temperatures associated with strong El Nino-Southern Oscillation events (Bodenstein et al. 2015, Jones et al. 2019, Romano et al. 2020). Since 2015, the U.S. Fish and Wildlife...
SPCIS: Standardized Plant Community with Introduced Status database
Lais Petri, Evelyn M. Beaury, Jeff Corbin, Kristen Peach, Helen Sofaer, Ian Pearse, Reagan Early, Dave Barnett, Inés Ibáñez, Robert K. Peet, Michael Schafale, Thomas Wentworth, James Vanderhorst, David N. Zaya, Greg Spyreas, Bethany A. Bradley
2023, Ecology (104)
The movement of plant species across the globe exposes native communities to new species introductions. While introductions are pervasive, two aspects of variability underlie patterns and processes of biological invasions at macroecological scales. First, only a portion of introduced species become invaders capable of substantially impacting...
Modeling of historical and current distributions of lone star tick, Amblyomma americanum (Acari: Ixodidae), is consistent with ancestral range recovery
Ilia Rochlin, Andrea Egizi, Howard Ginsberg
2023, Experimental and Applied Acarology (89) 85-103
The lone star tick, Amblyomma americanum L., is a three-host hard tick notorious for aggressive feeding behavior. In the early to mid-20th century, this species’ range was mostly limited to the southern USA. Since the 1950s, A. americanum has been detected in many new localities in the western, northcentral, and northeastern regions of the...
Microbial source tracking and land use associations for antibiotic resistance genes in private wells influenced by human and livestock fecal sources
Tucker R. Burch, Joel P. Stokdyk, Aaron Firnstahl, Burney Kieke Jr, Rachel Cook, Sarah Opelt, Sue Spencer, Lisa Durso, Mark A. Borchardt
2023, Journal of Environmental Quality (52) 270-286
Antimicrobial resistance is a growing public health problem that requires an integrated approach among human, agricultural, and environmental sectors. However, few studies address all three components simultaneously. We investigated the occurrence of five antibiotic resistance genes (ARGs) and the class 1 integron gene (intI1) in private wells drawing water from...
Empirical evidence for effects of invasive American Bullfrogs on occurrence of native amphibians and emerging pathogens
Blake R. Hossack, Emily B Oja, Audrey K Owens, David L. Hall, Cassidi Cobos, Catherine L. Crawford, Caren S. Goldberg, Shaula Hedwell, Paige E. Howell, Julio A. Lemos-Espinal, Susan K MacVean, Magnus McCaffery, Cody Mosley, Erin L. Muths, Brent H. Sigafus, Micahel J Sredl, James C. Rorabaugh
2023, Ecological Applications (33)
Invasive species and emerging infectious diseases are two of the greatest threats to biodiversity. American Bullfrogs (Rana [Lithobates] catesbeiana), which have been introduced to many parts of the world, are often linked with declines of native amphibians via predation and spreading emerging pathogens such as amphibian chytrid fungus (Batrachochytrium dendrobatidis [Bd]) and ranaviruses....
Extent, patterns, and drivers of hypoxia in the world's streams and rivers
Joanna R Blaszczak, Lauren E Koenig, Francine H. Mejia, Alice M. Carter, Lluis Gómez-Gener, Christoper L Dutton, Nancy B. Grimm, Judson Harvey, Ashley M. Helton, Matthew J. Cohen
2023, Limnology and Oceanography - Letters (8) 453-463
Hypoxia in coastal waters and lakes is widely recognized as a detrimental environmental issue, yet we lack a comparable understanding of hypoxia in rivers. We investigated controls on hypoxia using 118 million paired observations of dissolved oxygen (DO) concentration and water temperature in over 125,000 locations...
Causes, responses, and implications of anthropogenic versus natural flow intermittence in river networks
Thibault Datry, Amélie Truchy, Julian D. Olden, Michelle H. Busch, Rachel Stubbington, Walter K. Dodds, Sam Zipper, Songyan Yu, Mathis L. Messager, Jonathan D. Tonkin, Kendra E. Kaiser, John C. Hammond, E.K. Moody, Ryan Burrows, Romain Sarremejane, Amanda DelVecchia, Megan L. Fork, Chelsea Little, Richard H Walker, Annika W. Walters, Daniel Allen
2023, BioScience (73) 9-22
Rivers that do not flow year-round are the predominant type of running waters on Earth. Despite a burgeoning literature on natural flow intermittence (NFI), knowledge about the hydrological causes and ecological effects of human-induced, anthropogenic flow intermittence (AFI) remains limited. NFI and AFI could generate contrasting hydrological and biological responses...
Using landscape genomics to delineate future adaptive potential for climate change in the Yosemite toad (Anaxyrus canorus)
Paul A. Maier, Amy G. Vandergast, Andrew J. Bohonak
2023, Evolutionary Applications (16) 74-97
An essential goal in conservation biology is delineating population units that maximize the probability of species persisting into the future and adapting to future environmental change. However, future-facing conservation concerns are often addressed using retrospective patterns that could be irrelevant. We recommend a novel landscape genomics framework for delineating future...
Earth’s upper crust seismically excited by infrasound from the 2022 Hunga Tonga–Hunga Ha’apai eruption, Tonga
Robert E. Anthony, Adam T. Ringler, Toshiro Tanimoto, Robin Matoza, Silvio De Angelis, David C. Wilson
2023, Seismological Research Letters (97) 603-616
Records of pressure variations on seismographs were historically considered unwanted noise; however, increased deployments of collocated seismic and acoustic instrumentation have driven recent efforts to use this effect induced by both wind and anthropogenic explosions to invert for near‐surface Earth structure. These studies have been limited to shallow structure because...
Historical Structure from Motion (HSfM): Automated processing of historical aerial photographs for long-term topographic change analysis
Friedrich Knuth, David Shean, Shashank Bhushan, Eli Schwat, Oleg Alexandrov, Christopher J. McNeil, Amaury Dehecq, Caitlyn Florentine, Shad O'Neel
2023, Remote Sensing of Environment (285)
Precisely measuring the Earth’s changing surface on decadal to centennial time scales is critical for many science and engineering applications, yet long-term records of quantitative landscape change are often temporally and geographically sparse. Archives of scanned historical aerial photographs provide an opportunity to augment these records with accurate elevation measurements...
Point count offsets for estimating population sizes of north American landbirds
B.P.M. Edwards, A.C. Smith, T.D.S. Docherety, M.A. Gahbauer, C.R. Gillespie, A.R. Grinde, T. Harmer, D. Iles, Steven M. Matsuoka, N.L. Michel, N.L. Murray, G. Niemi, J. Pasher, D. Pavlacky, B. Robinson, B. Ryder, P. Solymos, D. Stralberg, E.J. Zlonis
2023, Ibis (165) 482-503
Bird monitoring in North America over several decades has generated many open databases, housing millions of structured and semi-structured bird observations. These provide the opportunity to estimate bird densities and population sizes, once variation in factors such as underlying field methods, timing, land cover, proximity to...
Estimating reproductive and juvenile survival rates when offspring ages are uncertain: A novel multievent mark-resight model with beluga whale case study
Gina K Himes Boor, Tamara L McGuire, Amanda J. Warlick, Rebecca L. Taylor, Sarah J. Converse, John R McClung, Amber D Stephens
2023, Methods in Ecology and Evolution (14) 631-642
Understanding the survival and reproductive rates of a population is critical to determining its long-term dynamics and viability. Mark-resight models are often used to estimate these demographic rates, but estimation of survival and reproductive rates is challenging, especially for wide-ranging, patchily distributed, or cryptic species. In particular, existing mark-resight...
Landscape characteristics influence projected growth rates of stream-resident juvenile salmon in the face of climate change in the Kenai River watershed, south-central Alaska
B. E. Meyer, M. S. Wipfli, E. R. Schoen, D. J. Rinella, Jeffrey A. Falke
2023, Transactions of the American Fisheries Society (152) 169-186
ObjectiveClimate change is affecting the distribution and productivity of Pacific salmon throughout their range. At high latitudes, warmer temperatures have been associated with increased freshwater growth of juvenile salmon, but it is not clear how long this trend will continue before further warming leads to reduced growth....
Geochemistry and fluxes of gases from hydrothermal features at Newberry Volcano, Oregon, USA
Jennifer L. Lewicki, William C. Evans, Steven E. Ingebritsen, Laura E. Clor, Peter J. Kelly, Sara Peek, Robert A. Jensen, Andrew Hunt
2023, Journal of Volcanology and Geothermal Research (433)
We present the chemical and isotopic compositions of gases and fluxes of CO2 from the hydrothermal features of Newberry Volcano, a large composite volcano located in Oregon's Cascade Range with a summit caldera that hosts two lakes, Paulina and East Lakes. Gas samples were collected from 1982 to 2021 from Paulina...
Future direction of fuels management in sagebrush rangelands
Douglas J. Shinneman, Eva Strand, Mike Pellant, John T. Abatzoglou, Mark W. Brunson, Nancy Glenn, Julie A. Heinrichs, Mojtaba Sadegh, Nicole Vaillant
2023, Rangeland Ecology and Management (86) 50-63
Sagebrush ecosystems in the United States have been declining since EuroAmerican settlement, largely due to agricultural and urban development, invasive species, and altered fire regimes, resulting in loss of biodiversity and wildlife habitat. To combat continued conversion to undesirable ecological states and loss of habitat to invasive species fueled by...
Modeling the dynamic penetration depth of post-1950s water in unconfined aquifers using environmental tracers: Central Valley, California
Kirsten Faulkner, Bryant Jurgens, Stefan Voss, Danielle Dupuy, Zeno Levy
2023, Journal of Hydrology (616)
The penetration depth of post-1950s recharge (D-1950) in aquifers is a marker that is frequently used to identify groundwater that is susceptible to anthropogenic contamination. Here, we compute D-1950 values at wells, interpolate them in space, and project them across time to...
Provenance, genotype, and flooding influence growth and resource acquisition characteristics in a clonal, riparian shrub
Emily C. Palmquist, Kiona Ogle, Thomas G. Whitham, Gerard J. Allan, Patrick B. Shafroth, Bradley J. Butterfield
2023, American Journal of Botany (110)
PremiseRiparian plants can exhibit intraspecific phenotypic variability across the landscape related to temperature and flooding gradients. Phenotypes that vary across a climate gradient are often partly genetically determined and may differ in their response to inundation. Changes to inundation patterns across a climate gradient could thus result...
Learning from arid and urban aquatic ecosystems to inform more sustainable and resilient futures
Lauren McPhillips, Marta Berbés-Blázquez, Rebecca Hale, Tamara K Harms, Vanya Bisht, Lilana Caughman, Sandra Clinton, Elizabeth Cook, Xiaoli Dong, Jennifer Edmonds, Sarah Gergel, Rosa Gomez, Kristina G. Hopkins, David Iwaniec, Yeowon Kim, Amanda Kuhn, Libby Larson, David Bruce Lewis, Eugenía Martí, Monica M. Palta, W. John Roach, Lin Ye
2023, Journal of Hydrology (616)
The hydrology and aquatic ecology of arid environments has long been understudied relative to temperate regions. Yet spatially and temporally intermittent and ephemeral waters characterized by flashy hydrographs typify arid regions that comprise a substantial proportion of the Earth. Additionally, drought, intense storms, and human...
Assessment of resource potential from mine tailings using geostatistical modeling for compositions: A methodology and application to Katherine Mine site, Arizona, USA
C. Özgen Karacan, Oktay Erten, Josep Antoni Martín-Fernández
2023, Journal of Geochemical Exploration (245)
The mining industry, in most cases, targets a specific valuable commodity that is present in small quantities within large volumes of extracted material. After milling and processing, most of the extracted material and the effluents are stored as waste (tailings) in impoundments, such as dams or waste dumps, or...
Burmese python size and reproduction: Fact vs fiction
Mark Robert Sandfoss
2023, Newsletter
We’ve probably all heard rumors about monster 25-foot snakes or baby pythons emerging from under neighbors houses year-round, but what is fact vs fiction? To help us sort truth from myth, invasive pythons that were removed from the Everglades and surrendered to the National Park Service (NPS) were scientifically investigated...
Porosity, strength, and alteration – Towards a new volcano stability assessment tool using VNIR-SWIR reflectance spectroscopy
Gabor Kereszturi, Michael J. Heap, Lauren N. Schaefer, Herlan Darmawan, Frances M. Deegan, Ben M. Kennedy, Jean-Christophe Komorowski, Stuart Mead, Marina Rosas-Carbajal, Amy Ryan, Valentin R. Troll, Marlène C. Villeneuve, Thomas R. Walter
2023, Earth and Planetary Science Letters (602)
Volcano slope stability analysis is a critical component of volcanic hazard assessments and monitoring. However, traditional methods for assessing rock strength require physical samples of rock which may be difficult to obtain or characterize in bulk. Here, visible to shortwave infrared (350–2500 nm; VNIR–SWIR) reflected...
Understanding local adaptation to prepare populations for climate change
Mariah H. Meek, Erik A. Beever, Soraia Barbosa, Sarah W. Fitzpatrick, Nicholas K. Fletcher, Cinnamon S. Mittan-Moreau, Brendan N. Reid, Shane C. Campbell-Staton, Nancy Green, Jessica J. Hellmann
2023, BioScience (73) 36-47
Adaptation within species to local environments is widespread in nature. Better understanding this local adaptation is critical to conserving biodiversity. However, conservation practices can rely on species’ trait averages or can broadly assume homogeneity across the range to inform management. Recent methodological advances for studying local adaptation provide the...
Impeding access to tributary spawning habitat and releasing experimental fall-timed floods increases brown trout immigration into a dam's tailwater
Brian D. Healy, Charles Yackulic, Robert C. Schelly
2023, Canadian Journal of Fisheries and Aquatic Sciences (80) 614-627
River ecosystems have been altered by flow regulation and species introductions. Regulated flow regimes often include releases designed to benefit certain species or restore ecosystem processes, and invasive species suppression programs may include efforts to restrict access to spawning habitat. The impacts of these management interventions are...
