Beyond glacier-wide mass balances: Parsing seasonal elevation change into spatially resolved patterns of accumulation and ablation at Wolverine Glacier, Alaska
Lucas Zeller, Daniel J McGrath, Louis C. Sass, Shad O'Neel, Christopher J. McNeil, Emily Baker
2023, Journal of Glaciology (69) 87-102
We present spatially distributed seasonal and annual surface mass balances of Wolverine Glacier, Alaska, from 2016 to 2020. Our approach accounts for the effects of ice emergence and firn compaction on surface elevation changes to resolve the spatial patterns in mass balance at 10 m scale. We...
The 180-km-long Meers-Willow Fault System in the Southern Oklahoma Aulacogen: A potential U.S. mid-continent seismic hazard
Brandon F. Chase, Folarin Kolawole, Estella A. Atekwana, Brett M. Carpenter, Molly Turko, Mohamed Abdelsalam, Carol A. Finn
2023, Geological Society of America Bulletin (135) 663-677
We integrate new high-resolution aeromagnetic data with seismic reflection data, well logs, satellite remote sensing, and field observations to provide a regional view of buried and exposed structures in the Southern Oklahoma Aulacogen and to assess their potential for future seismicity. Trends ranging from...
Integrative monitoring strategy for marine and freshwater harmful algal blooms and toxins across the freshwater-to-marine continuum
Meredith D. A. Howard, Jayme Smith, David A. Caron, Raphael Kudela, Keith Loftin, Kendra Hayashi, Rich Fadness, Susan Fricke, Jacob Kann, Miranda Roethler, Avery Tatters, Susanna Theroux
2023, Integrated Environmental Assessment and Management (IEAM) (19) 586-604
Many coastal states throughout the USA have observed negative effects in marine and estuarine environments caused by cyanotoxins produced in inland waterbodies that were transported downstream or produced in the estuaries. Estuaries and other downstream receiving waters now face the dual risk of impacts...
Temporal segregation in spawning between native Yellowstone cutthroat trout and introduced rainbow trout
John M. Fennell, William C. Rosenthal, Catherine E. Wagner, Jason C. Burckhardt, Annika W. Walters
2023, Ecology of Freshwater Fish (32) 94-106
Hybridisation with introduced taxa poses a threat to native fish populations. Mechanisms of reproductive isolation can limit or prevent hybridisation between closely related species. Understanding how these mechanisms interact between the same species across geographically distinct occurrences of secondary contact, and how regional factors influence them, can inform our understanding...
Morphology and paleohydrology of intracrater alluvial fans north of Hellas Basin, Mars
Ryan Anderson, Rebecca Williams, Amber Gullikson, William Nelson
2023, Icarus (394)
Alluvial fans and sinuous ridges are both important records of the history of fluvial activity on Mars, and they often occur together. We present observations of alluvial fans, many of which exhibit inverted relief, in five craters in the region north of Hellas basin. The observed fans ranged in...
Management and environmental factors associated with simulated restoration seeding barriers in sagebrush steppe
Stella M. Copeland, John B. Bradford, Stuart P. Hardegree, Daniel Rodolphe Schlaepfer, Kevin J Badik
2023, Restoration Ecology (31)
Adverse weather conditions, particularly freezing or drought, are often associated with poor seedling establishment following restoration seeding in drylands like the Great Basin sagebrush steppe (USA). Management decisions such as planting date or seed source could improve restoration outcomes by reducing seedling exposure to weather barriers. We simulated the effects...
The dynamic floor of Yellowstone Lake, Wyoming, USA: The last 14 k.y. of hydrothermal explosions, venting, doming, and faulting
Lisa Ann Morgan Morzel, Wayne (Pat) Shanks, Kenneth L. Pierce, Nels Iverson, Christopher Schiller, Sabrina R. Brown, Petra Zahajska, Rosine Cartier, Ron Cash, James Best, Cathy Whitlock, Sherilyn Fritz, William Benzel, Heather A. Lowers, D. A. Lovalvo, J. M. Licciardi
2023, Geological Society of America Bulletin (135) 547-574
Hydrothermal explosions are significant potential hazards in Yellowstone National Park, Wyoming, USA. The northern Yellowstone Lake area hosts the three largest hydrothermal explosion craters known on Earth empowered by the highest heat flow values in Yellowstone and active seismicity and deformation. Geological and geochemical studies of eighteen sublacustrine cores provide...
Experience preferences and place attachment of Minnesota wildlife management area hunters
Kelsie LaSharr, David C. Fulton, L. Cornicelli
2023, Human Dimensions of Wildlife (28) 417-434
Hunters in the United States are motivated to obtain and benefit from diverse experiences or experience preferences. Using a mail survey conducted during the 2015–2016 hunting season, we examined goal-oriented, introspective, and leadership experiences among hunters on Minnesota Department of Natural Resources’ Wildlife Management Area (WMAs). We...
Late Cretaceous time-transgressive onset of Laramide arch exhumation and basin subsidence across northern Arizona−New Mexico, USA, and the role of a dehydrating Farallon flat slab
Jacob Thacker, Karl Karlstrom, Shari Kelley, Ryan S. Crow, Jerry Kendall
2023, GSA Bulletin (135) 389-406
Spatiotemporal constraints for Late Cretaceous tectonism across the Colorado Plateau and southern Rocky Mountains (northern Arizona−New Mexico, USA) are interpreted in regards to Laramide orogenic mechanisms. Onset of Laramide arch development is estimated from cooling recorded in representative thermochronologic samples in a three-step process of initial forward models, secondary HeFTy...
Spatially averaged stratigraphic data to inform watershed sediment routing: An example from the Mid-Atlantic United States
James Pizzuto, Katherine Skalak, Adam Benthem, Shannon A. Mahan, Mahmoud Sherif, Adam Pearson
2023, GSA Bulletin (135) 249-270
New and previously published stratigraphic data define Holocene to present sediment storage time scales for Mid-Atlantic river corridors. Empirical distributions of deposit ages and thicknesses were randomly sampled to create synthetic age-depth records. Deposits predating European settlement accumulated at a (median) rate of 0.06 cm yr−1, range from ∼18,000 to...
Alaskan Yelloweye Rockfish fecundity revealed through an automated egg count and digital imagery method
Donald E. Arthur, Jeffrey A. Falke, Brittany J. Blain-Roth, Trent M. Sutton
2023, North American Journal of Fisheries Management (42) 828-838
Spawning stock biomass (SSB) is often used as an index for reproductive potential (RP) in fisheries stock assessments. This method assumes that mature female biomass is proportional to total egg production and implies that (1) the fecundity–length relationship follows a cubic function or (2)...
Challenges in linking soil health to edge-of-field water quality across the Great Lakes basin
Kevin Fermanich, Molly Meyers, Luke C. Loken, Marianne Bischoff-Gray, Ronald Turco, Karen Stahlhber, Lisa Duriancik, Mathew Dornbush, Matthew J. Komiskey
2023, Journal of Environmental Quality (52) 508-522
To better understand agricultural nutrient losses, we evaluated relationships between management (e.g., manure and tillage), soil health measurements, and resulting edge-of-field (EOF) surface water quality. This work was conducted before or early into conservation implementation at 14 Great Lakes Restoration Initiative EOF sites spanning...
Population connectivity of aquatic insects in a dam-regulated, desert river
Erin F. Abernethy, Jeffrey Muehlbauer, Theodore Kennedy, Katie E. Dziedzic, Holland Elder, Molly K. Burke, David A. Lytle
2023, River Research and Applications (39) 364-374
Humans have exaggerated natural habitat fragmentation, negatively impacting species dispersal and reducing population connectivity. Habitat fragmentation can be especially detrimental in freshwater populations, whose dispersal is already constrained by the river network structure. Aquatic insects, for instance, are generally limited to two primary modes...
Climate and landscape controls on old-growth western juniper demography in the northern Great Basin, USA
Rachel A. Loehman, Emily K. Heyerdahl, Gregory T. Pederson, David B. McWethy
2023, Ecosystems (26) 362-382
Western juniper (Juniperus occidentalis Hook.) woodlands have persisted for millennia in semiarid parts of the northern Great Basin, USA, providing critical habitat for plant and animal species. Historical records suggest that the establishment of western juniper is strongly associated with regional climatic variability. For example, the abundance of western juniper pollen...
2022 Crustal Deformation Modeling Workshop Report
Brad T. Aagaard, Sylvain Barbot, Brittany Erickson, Matthew Knepley, Mark Simons, Charles Williams
2023, Report
The 2022 Crustal Deformation Modeling Workshop was held June 20–24 at the Colorado School of Mines in Golden, Colorado. The workshop included two days of tutorials on the use of the open-source software PyLith for crustal deformation modeling followed by three days of science talks and discussions. The workshop focused...
Using physiological conditions to assess current and future habitat use of a Subarctic frog
T. Hastings, Blake R. Hossack, L. Fishback, J. M. Davenport
2023, Integrative Zoology (18) 2-14
Species with especially close dependence on the environment to meet physiological requirements, such as ectotherms, are highly susceptible to the impacts of climate change. Climate change is occurring rapidly in the Subarctic and Arctic, but there is limited knowledge on ectotherm physiology in these landscapes. We...
Estimating the aboveground biomass and carbon stocks of tall shrubs in a prerestoration degraded salt marsh
Jacqualyn Fouse, Meagan J. Eagle, Kevin D. Kroeger, Timothy P. Smith
2023, Restoration Ecology (31)
Wetlands play a vital role in Earth's carbon cycle and provide important ecosystem services. Their ability to perform their roles can be compromised by human activities that destroy or impair their functioning. The restoration of degraded wetlands may allow carbon cycle functioning, as well as other...
Using genetic data to advance stream fish reintroduction science: A case study in brook trout
Shannon L. White, Thomas C Johnson, Jacob M Rash, Barbara A. Lubinski, David C. Kazyak
2023, Restoration Ecology (31)
Widespread extirpation of native fish populations has led to a rise in species reintroduction efforts worldwide. Most efforts have relied on demographic data alone to guide project design and evaluate success. However, the genetic characteristics of many imperiled fish populations including low diversity, local adaptation, and hatchery introgression emphasize the...
Luminescence ages and new interpretations of the timing and deposition of Quaternary sediments at Natural Trap Cave, Wyoming
Shannon A. Mahan, John R. Wood, Dave M Lovelace, Juan Laden, Jenny McGuire, Julie Meachen
2023, Quaternary International (647-648) 22-35
Natural Trap Cave, located in the Big Horn Mountains of north-central Wyoming, has a history of trapping and preserving a range of North American fauna that plummeted into the deep vertical entrance. These animal remains were buried and preserved within sediments of the main chamber and, in turn, have...
The Hawai'i groundwater recharge tool
Jared H. McLean, Sean B. Cleveland, Kolja Rotzoll, Scot K. Izuka, Jason Leigh, Gwen A. Jacobs, Ryan Theriot
2023, Concurrency and Computation: Practice and Experience (35)
This article discusses the design and implementation of the Hawai’i Groundwater Recharge Tool, an application for providing data and analyses of the impacts of land-cover modifications and changes in precipitation on groundwater-recharge rates for the island of O’ahu. This application uses simulation data based on a set of 29 land-cover types and 2 precipitation...
Winter habitat selection and efficacy of telemetry to aid Grass Carp removal efforts in a large reservoir
Tyler Michael Hessler, Duane Chapman, Craig Paukert, Jeff C. Jolley, Michael E. Byrne
2023, North American Journal of Fisheries Management (43) 189-202
Grass Carp Ctenopharyngodon idella were introduced in North America to control aquatic vegetation in small, closed systems. However, when they escape into larger systems in which they can reproduce, they have the potential to cause significant declines and alterations in aquatic vegetation communities. These alterations can in turn affect native species that...
Early Pliocene marine transgression into the lower Colorado River valley, southwestern USA, by re-flooding of a former tidal strait
Rebecca Dorsey, Juan Carlos Braga, Kevin Gardner, Kristin McDougall-Reid, Brennan O’Connell
2023, Book chapter, Straits and seaways: Controls, processes and implications in modern and ancient systems
Marine straits and seaways are known to host a wide range of sedimentary processes and products, but the role of marine connections in the development of large river systems remains little studied. This study explores a hypothesis that shallow-marine waters flooded the lower Colorado River valley at c. 5 Ma along a...
Gene flow influences the genomic architecture of local adaptation in six riverine fish species
Yue Shi, Kristen L. Bouska, Garrett J. McKinney, William Dokai, Andrew Bartels, Megan V. McPhee, Wesley Larson
2023, Molecular Ecology (32) 1549-1566
Understanding how gene flow influences adaptive divergence is important for predicting adaptive responses. Theoretical studies suggest that when gene flow is high, clustering of adaptive genes in fewer genomic regions would protect adaptive alleles from recombination and thus be selected for, but few studies have tested...
Signatures of high-latitude waves in observations of geomagnetic acceleration
Rodrigo Chi-Duran, Margaret Susan Avery, Bruce Buffett
2023, Geophysical Research Letters (48)
Models for the second time-derivative of the geomagnetic field reveal prominent activity at high latitudes. Alternating patches of positive and negative geomagnetic acceleration propagate to the west at speeds that exceed nominal fluid velocities in the core. We show that waves are a viable interpretation of these...
Anthropogenic landcover impacts fluvial dissolved organic matter composition in the Upper Mississippi River Basin
Derrick R. Vaughn, Anne M. Kellerman, Kimberly Wickland, Robert G. Striegl, David C. Podgorski, Jon R. Hawkings, Jaap Nienhuis, Mark Dornblaser, Edward G. Stets, Robert G. M. Spencer
2023, Biogeochemistry (164) 117-141
Landcover changes have altered the natural carbon cycle; however, most landcover studies focus on either forest conversion to agriculture or urban, rarely both. We present differences in dissolved organic carbon (DOC) concentrations and dissolved organic matter (DOM) molecular composition within Upper Mississippi River Basin low order...
