Submarine canyon sediment transport and accumulation during sea level highstand: Interactive seasonal regimes in the head of Astoria Canyon, WA
E. Lahr, A. Ogston, Jenna C. Hill, H. Glover, Kurt J. Rosenberger
2026, Marine Geology (484)
The majority of submarine canyons on Earth today do not directly intersect littoral or fluvial sediment sources, yet these systems are rarely studied. The shelf-incised head of Astoria Canyon receives sediment from the nearby Columbia River and is subject to energetic forcing from shelf and slope processes, making it an ideal site to evaluate...
Iguanas rafted more than 8,000 km from North America to Fiji
Simon G. Scarpetta, Robert D. Fisher, Benjamin R. Karin, Jone B. Niukula, Ammon Corl, Todd R. Jackman, Jimmy A. McGuire
2026, Proceedings of the National Academy of Sciences (122)
Founder-event speciation can occur when one or more organisms colonize a distant, unoccupied area via long-distance dispersal, leading to the evolution of a new species lineage. Species radiations established by long-distance, and especially transoceanic, dispersal can cause substantial shifts in regional biodiversity. Here, we investigate the occurrence and timing of...
Integrating Sr isotopes, microchemistry, and genetics to reconstruct Salmonidae species and life history
Ross Anthony Salerno, Remi Murdoch, Taylor Wilcox, Joanna Elmore, Jens Hegg, Catherine S Austin, Michael LeMoine, Jade Luckhurst, Alexandra Fraik, Molly Carney
2026, Archaeometry (68) S104-S129
Recent approaches to fisheries research emphasize the importance of the coproduction of knowledge in building resilient and culturally mindful fisheries management frameworks. Despite widespread recognition of the need for Indigenous knowledge and historical reference points as baseline data, archaeological data are rarely included in conservation biology research designs. Here we...
Upper Triassic igneous rocks of the southern Kenai Peninsula, Alaska – Prelude to Early Jurassic subduction along the western Wrangellia composite terrane margin
Travis L. Hudson, Frederic H. Wilson, Paul O’Sullivan
2026, Canadian Journal of Fisheries and Aquatic Sciences (61) 941-965
New U–Pb zircon geochronology identifies a latest Triassic (ca 214–201 Ma) igneous suite of tuff, hypabyssal dikes, and a pluton on the southern Kenai Peninsula, Alaska. The igneous suite was emplaced within Upper Triassic sedimentary rocks along the southern margin of Western Wrangellia, the western-most fragment of the Wrangellia composite...
Contribución de la geodesia a la gestión del riesgo volcánico del Nevado del Ruiz
Maurizio Battaglia, Pablo Euillades, Juan Idarraga, Cristian Mardones, Milton Ordoñez, Heather M. Wright
Enrique A. Castellanos Abella, João P.G. Carvalho, Lina Marcela Castaño, editor(s)
2025, Book chapter, Amenazas geologicas en Iberoamerica: Casos de estudio sobre movimientos en masa, terremotos y volcanes
Nevado del Ruiz es uno de los volcanes más activos de Colombia. Adquirió una trágica notoriedad a causa de la devastadora erupción ocurrida en noviembre de 1985, que provocó la destrucción de la población de Armero. Desafortunadamente, los limitados datos de deformación recopilados en ese momento no proporcionaron una advertencia...
Unravelling equilibrium shoreline response to waves and sea-level rise: Numerical modelling of laboratory experiments
Maurizio D’Anna, Francesca Ribas, Albert Falques, Daniel Calvete, Giovanni Coco, Sean Vitousek, Marissa Yates
2025, Conference Paper
Knowledge gaps in the physics of shoreline response to the combined action of waves and sea-level rise (SLR) make long-term shoreline projections uncertain. The lack of sufficiently long-term shoreline data partly hinders a better understanding of shoreline change driven by SLR. Thereby, existing formulations related to the equilibrium approach, which...
Climate-driven waterline variability along the North American West Coast
Marcan Graffin, Rafael Almar, Erwin Bergsma, Julien Boucharel, Sean Vitousek, Mohsen Taherkhani, Peter Ruggiero
2025, Conference Paper
Sandy coasts are highly dynamic environments shaped by a myriad of hydro-sedimentary processes operating across various spatio-temporal scales. From seasonal to centennial timescales, sandy beach dynamics are strongly influenced by climate variability expressed in various forms, including seasonal cycles, climate modes (e.g., El Niño Southern Oscillation (ENSO)), and global warming....
Field trip to a Laramide shallow subduction channel: Orocopia Schist in the Gavilan Hills, southeasternmost California; with incidental localities for three blue minerals
Gordon B. Haxel, Carl E. Jacobson, Gabe S. Epstein
2025, Arizona Geological Survey Contributed Report CR-25-A
No abstract available....
Neotectonic origins for the Meadow Bank scarp, Wabash Valley seismic zone USA
Edward W Woolery, William J. Stephenson, Kevin Woller, Alena L. Leeds, Noah Silas Lindberg, Jackson K. Odum, Cooper Cearley, Ron Counts
2025, The Seismic Record (5) 352-362
The Meadow Bank scarp (MBS) in southeastern Illinois is a linear geomorphic expression, ∼10 km long and ∼8 m high above a relatively flat landscape. It parallels an underlying northeast‐oriented Late‐Precambrian–Early‐Cambrian structural fabric, called the Wabash Valley fault zone, and is within an area of modern, historic, and paleo seismicity, called the...
Evaluating hydrologic data products for scientific and management applications related to potential future streamflow conditions in the Upper Mississippi and Illinois Rivers
Molly Van Appledorn, Lucie Sawyer, John T. Delaney, Chanel Mueller, Leigh Youngblood, Jane Harrell, Brian Breaker, Chris Frans
2025, Scientific Investigations Report 2025-5101
The hydrology of the Upper Mississippi and Illinois Rivers is a fundamental driver of ecosystem patterns and processes across a large portion of the United States. Quantitative hydrologic data for the main stems of these rivers underlie numerous scientific investigations, statistical models, and decision-making processes for local, State, and Federal...
A comparative evaluation of bait types taken by brown treesnakes or other nontarget species, including ants
Melia G. Nafus, Amanda A Reyes, Bae S. Daria, Christiana-Jo Concepcion Quinata, Ross Miller
2025, Pacific Science (79) 333-344
Evaluating invasive species removal can help improve efficacy or application of control tools. Toxic baiting is a primary method used to suppress many invasive species, including the brown treesnake (Boiga irregularis) in Guam. Based on limited alternative approaches to assess tool efficacy in snake removal, bait take is often used...
Pleistocene porcupine (Erethizontidae) records in arid southwestern North America and comparisons with the modern distribution of Erethizon dorsatum in southern California and Arizona
Jeffrey E. Lovich, George T. Jefferson
2025, Western North American Naturalist (85)
he North American porcupine (Erethizon dorsatum) is widely distributed throughout many ecosystems on the continent from northern Mexico to the Arctic Ocean, except for the southeastern portion of the United States. Habitats include the arid Desert Southwest region where modern records are generally sparse. The paleogeographic range in the Desert...
Moose survival and habitat‐associated risk of endoparasites
Jennifer A. Grauer, Jacqueline L. Frair, Krysten L. Schuler, Manigandan Lejeune, David W. Kramer, Angela K. Fuller
2025, Ecology and Evolution (15)
Parasite-induced morbidity and mortality can alter the trajectories of incidental host populations. Yet, parasites rarely act in isolation and may be one of a multitude of biotic and abiotic stressors that collectively shape mortality risk in vertebrate populations. We quantified sources of mortality in a low-density population of moose (Alces...
Status of Clear Lake Hitch in Lower Blue Lake, Lake County, California
Jordan Mae-Jean Buxton, Marissa L. Wulff, Veronica L. Violette, Danielle L. Palm, Matthew J. Young, Frederick Feyrer
2025, California Fish and Wildlife Journal (111)
No abstract available....
Watershed forest cover and habitat restoration can offset some negative impacts of climate change on freshwater fishes and mussels
Jennifer B. Rogers, Graziella Vittoria DiRenzo, Allison H. Roy, Jason Carmignani, Rebecca S.M. O’Brien, Rebecca M. Quiñones, Todd Richards
2025, PLOS Climate (4)
Many species of freshwater fishes and freshwater mussels have experienced population declines over the past century due to threats including habitat degradation, overexploitation, species invasion, and climate change. Management actions may offset climate-related changes to biodiversity, although identifying appropriate strategies is challenging. Our goal was to identify...
Satellite radar advances could transform global snow monitoring
Randall Ray Bonnell, Jack Tarricone, Hans-Peter Marshall, Elias Deeb, Carrie Vuyovich
2025, Eos, American Geophysical Union (106)
The recent SnowEx campaign and the new NISAR satellite mission are lighting the way to high-resolution snowpack monitoring and improved decisionmaking in critical river basins around the world....
Elevation mediates juvenile steelhead demographic response to stream temperature and flow
Ryan A. Vosbigian, Alexa Ballinger, Timothy E. Link, Timothy Copeland, Matthew Richard Falcy
2025, Canadian Journal of Fisheries and Aquatic Sciences (82)
Climate change alters streams by modifying flow dynamics, temperature, and biotic communities, changing the habitat where stream dwelling fish have evolved. We used snorkel survey data spanning four decades to investigate how juvenile steelhead (anadromous Oncorhynchus mykiss) counts and size structure were influenced by stream temperature and flow....
Using visualization science to inform the design of environmental decision-support tools—A case study of the U.S. Geological Survey Waterwatch
Michael D. Gerst, Melissa A. Kenney, Emily Read
2025, Scientific Investigations Report 2025-5085
Environmental decision-support tools are increasingly being used to serve both expert and non-expert audiences. Many existing tools are primarily expert-focused, and redesigning them can be challenging because experts and non-experts interact with tools differently, existing users may be resistant to changes, and there is little guidance on how to prioritize...
Advancing current understanding of Martian impact-generated hydrothermal systems through novel coupled modeling: Insights from Gale, Jezero, and other craters
Alexander J. Trowbridge, Simone Marchi, Joshua M. Taron, Gordon R. Osinski
2025, Journal of Geophysical Research - Planets (130)
Impact-generated hydrothermal systems are considered potentially habitable environments on Mars, Earth, and other planetary bodies for microbial life. However, there is an ongoing debate regarding what geological features on Mars provide definitive evidence for such systems. Although earlier studies have modeled hydrothermal processes in Martian craters, they often lacked integration...
MTAB 113, December 2025
Kyra Harvey, Jennifer L. McKay
2025, Newsletter
This Memo to All Banders (MTAB 113) was released in December 2025. Subjects in this this memo are 1. The Chief’s Chirp – End-of-Year Message and BBL’s Year in Numbers; 2. Alerts –Highly Pathogenic Avian Influenza and Screw-worms; 3. News – GameBirds Data Release and Banders Without Borders Updates;...
Are behavioural ecotoxicity endpoints relevant at the population level? Evidence-based insights for environmental protection
Michael G. Bertram, Marlene Ågerstrand, Jack A. Brand, Bryan W. Brooks, ZhiChao Dang, Alex T. Ford, Henner Hollert, Matthew K. LeFauve, Jack L. Manera, Jake M. Martin, Marcus Michelangeli, Maria Moiron, Eleanor R. Moore, Holly J. Puglis, Andrew Sih, Jeffery A. Steevens, Eli S.J. Thoré, Bob B.M. Wong, Lauren Zink, Tomas Bodin
2025, Environmental Science and Technology (60) 86-95
A substantial body of evidence exists demonstrating that exposure to environmental contaminants can alter animal behavior. Moreover, methodological and technological advancements, as well as increasing standardization, mean that behavioral ecotoxicity studies are more rigorous and reliable than ever before. Despite this, behavioral data are still seldom used in the risk...
The geology of Canadian potash: A critical mineral for feeding the world
E.J. Matheson, Mark D. Cocker, M. E. Snyder, Craig Funk, R. Boehner, Chaowei Yang, M.P.B. Nicolas, N. W. Kruger
2025, Facets (10) 1-40
Potash, potassium-bearing water-soluble salt, is the primary global economic source of potassium. Potash is recognized as a critical mineral in Canada as it is the largest source of potassium used in fertilizers. It is essential for global agricultural productivity and food security. Canada is the world’s largest...
Assessment of treated wastewater infiltration in Bright Angel Wash and the potential for contaminants of emerging concern influencing spring water quality along the South Rim of the Grand Canyon in Grand Canyon National Park, Arizona
Nicholas V. Paretti, Kimberly R. Beisner, Sarah J.R. Shepherd
2025, Scientific Investigations Report 2025-5095
In April 2021, a synoptic study conducted by the U.S. Geological Survey (USGS) and National Park Service (NPS) identified wastewater-related contaminants of emerging concern (CECs) in springs along the South Rim of the Grand Canyon. These springs are located north of Bright Angel Wash, an ephemeral channel that receives treated...
Evaluating uncertainties with sample-collection method and source selection in sediment fingerprinting: an example from a Great Lakes tributary
Tanja N. Williamson, James D. Blount, Heidi Mae Broerman, Faith Fitzpatrick, Isaac James Mevis, Dayle J. Hoefling, Shannon Murphy Pace, Matthew J. Komiskey, Rebecca Kreiling
2025, Journal of Soils and Sediments (25) 4140-4163
PurposeIdentifying suspended-sediment (SS) sources, seasonal variability, and phosphorus (P) transported with SS is critical information for basin managers, although there may be concerns about comparability between flow-integrated SS samples used for sediment fingerprinting and discrete samples used for concentrations and loads in basins where SS is mostly silt + clay...
A laboratory-based spectrometer intercomparison for the measurement of snow spectra
Benjamin M. Roberts-Pierel, Christopher J. Crawford, Steven W. Brown, Raymond F. Kokaly, Kelly E. Gleason, Anne W. Nolin, Edward H. Bair, Brenton A. Wilder, Anton J. Surunis, S. McKenzie K. Skiles, Joachim Meyer, Allyson E. Fitts, Jeremy M. Johnston, Adam G. Hunsaker, Martin Steufer, Trond Løke
2025, Cold Regions Science and Technology (245)
Seasonal snow is an integral component of global hydrological systems, global energy budget and Earth's climate. As an important part of many Earth systems, seasonal snow is also an essential source of water for many human populations and ecosystems around the world. As such, the measurement of...
