Debris-flow process controls on steepland morphology in the San Gabriel Mountains, California
William Struble, Luke A. McGuire, Scott W. McCoy, Katherine R. Barnhart, Odin Marc
2023, JGR Earth Surface (128)
Steep landscapes evolve largely by debris flows, in addition to fluvial and hillslope processes. Abundant field observations document that debris flows incise valley bottoms and transport substantial sediment volumes, yet their contributions to steepland morphology remain uncertain. This has, in turn, limited the development of debris-flow incision rate formulations that...
Prioritizing the risk and management of introduced species in a landscape with high indigenous biodiversity
Jonathan Q. Richmond, Jennifer Kingston, Brittany Ewing, Wendy M Bear, Stacie A. Hathaway, Cedric Lee, Camm C. Swift, Kristine L. Preston, Allison J. Schultz, Barbara E. Kus, Kerwin Russell, Philip Unitt, Bradford D. Hollingsworth, Robert E. Espinoza, Michael Wall, Scott Tremor, Kai Palenscar, Robert N. Fisher
2023, Bulletin, Southern California Academy of Sciences (122) 101-121
Risk analysis protocols for prioritizing the management of non-native species are numerous, yet few incorporate risk and management in the same analysis or accommodate a broad diversity of taxa outside of a specific geographic area. We adapted a protocol that accounts for these factors to address non-native animal species in...
Extrusion tectonism of Indochina reassessed: constraints from 40Ar/39Ar geochronology from the Day Nui Con Voi metamorphic massif, Vietnam
Thi-Hue Dinh, Meng-Wan Yeh, Tung-Yi Lee, Michael J. Kunk, Robert P. Wintsch, Ryan J. McAleer
2023, Frontiers in Earth Science (11)
The extrusion tectonic model for the southeastern margin of the Himalayan orogeny links the crustal shear activity along the Red River Shear Zone (RRSZ) to the opening of the South China Sea (SCS). The Day Nui Con Voi (DNCV) metamorphic massif in northern Vietnam strikes NW-SE, is bounded by the...
Impacts of a Cascadia subduction zone earthquake on water levels and wetlands of the lower Columbia River and Estuary
M.W. Brand, H.L. Diefenderfer, Jim E. O'Connor, A.B. Borde, D.A. Jay, A. Al-Bahadily, M. McKeon, S.A. Talke
2023, Geophysical Research Letters (50)
Subsidence after a subduction zone earthquake can cause major changes in estuarine bathymetry. Here, we quantify the impacts of earthquake-induced subsidence on hydrodynamics and habitat distributions in a major system, the lower Columbia River Estuary, using a hydrodynamic and habitat model. Model results indicate that coseismic subsidence...
An algorithm for correction of atmospheric scattering dilution effects in volcanic gas emission measurements using skylight differential optical absorption spectroscopy
Bo Galle, Santiago Arellano, Mattias Johansson, Christoph Kern, Melissa Pfeffer
2023, Frontiers in Earth Science (11)
Differential Optical Absorption Spectroscopy (DOAS) is commonly used to measure gas emissions from volcanoes. DOAS instruments measure the absorption of solar ultraviolet (UV) radiation scattered in the atmosphere by sulfur dioxide (SO2) and other trace gases contained in volcanic plumes. The standard spectral retrieval methods assume that all measured light...
Slip deficit rates on southern Cascadia faults resolved with viscoelastic earthquake cycle modeling of geodetic deformation
Kathryn Zerbe Materna, Jessica R. Murray, Frederick Pollitz, Jason R. Patton
2023, Bulletin of the Seismological Society of America (113) 2505-2518
The fore‐arc of the southern Cascadia subduction zone (CSZ), north of the Mendocino triple junction (MTJ), is home to a network of Quaternary‐active crustal faults that accumulate strain due to the interaction of the North American, Juan de Fuca (Gorda), and Pacific plates. These faults, including the Little Salmon and...
Widespread regeneration failure in ponderosa pine forests of the southwestern United States
Matthew D. Petrie, Robert M. Hubbard, John B. Bradford, Tom E. Kolb, Adam Roy Noel, Daniel Rodolphe Schlaepfer, M.A. Bowen, L.R. Fuller, W. Keith Moser
2023, Forest Ecology and Management (545)
As climate changes in coming decades, ponderosa pine forest persistence may be increasingly dictated by their regeneration. Sustained regeneration failure has been predicted for forests of the southwestern US (SWUS) even in absence of stand-replacing wildfire, but regeneration in undisturbed and lightly disturbed forests has been studied infrequently and at...
Minimal shift of eastern wild turkey nesting phenology associated with projected climate change
Wesley W. Boone, Christopher E. Moorman, Adam Terando, David J. Moscicki, Bret A. Collier, Michael J. Chamberlain, Krishna Pacifici
2023, Climate Change Ecology (6)
Climate change may induce mismatches between wildlife reproductive phenology and temporal occurrence of resources necessary for reproductive success. Verifying and elucidating the causal mechanisms behind potential mismatches requires large-scale, longer-duration data. We used eastern wild turkey (Meleagris gallopavo silvestris) nesting data...
Combining expert knowledge of a threatened trout distribution with sparse occupancy data for climate-related projection
Nathan Chelgren, Jason Dunham, Stephanie L Gunckel, David P Hockman-Wert, Chris S Allen
2023, North American Journal of Fisheries Management (43) 839-858
ObjectiveTo evaluate the vulnerability of Bull Trout Salvelinus confluentus to potential climate changes across its range in Oregon, we compiled disparate expert knowledge of the distribution of spawning and rearing and combined these probabilistic statements as data along with documented records of breeding and rearing in a joint occupancy...
White-Nose Syndrome Diagnostic Laboratory Network handbook
Katrina E. Alger, White Nose Syndrome National Response Team Diagnostic Working Group
2023, Techniques and Methods 15-E1
When responding to a wildlife disease outbreak, managers depend on consistent and clear data to make decisions. However, diagnostic methods for detecting pathogens of wildlife often lack the level of procedural and interpretational standardization that occurs in the investigation of human and domestic animal diseases. This lack of standardization can...
Differentiable modelling to unify machine learning and physical models for geosciences
Chaopeng Shen, Alison P. Appling, Pierre Gentine, Toshiyuki Bandai, Hoshin Gupta, Alexandre Tartakovsky, Marco Baity-Jesi, Fabrizio Fenicia, Daniel Kifer, Li Li, Xiaofeng Liu, Wei Ren, Yi Zheng, Ciaran Harman, Martyn Clark, Matthew Farthing, Dapeng Feng, Praveen Kumar, Doaa Aboelyazeed, Farshid Rahmani, Yalan Song, Hylke E. Beck, Tadd Bindas, Dipankar Dwivedi, Kuai Fang, Marvin Hoge, Chris Rackauckas, Binayak Mohanty, Roy, Chonggang Xu, Kathryn Lawson
2023, Nature Reviews Earth & Environment (4) 552-567
Process-based modelling offers interpretability and physical consistency in many domains of geosciences but struggles to leverage large datasets efficiently. Machine-learning methods, especially deep networks, have strong predictive skills yet are unable to answer specific scientific questions. In this Perspective, we explore differentiable modelling as a pathway to dissolve the perceived...
Ring fault creep drives volcano-tectonic seismicity during caldera collapse of Kīlauea in 2018
Taiyi A. Wang, Paul Segall, Alicia J. Hotovec-Ellis, Kyle R. Anderson, Peter F. Cervelli
2023, Earth and Planetary Science Letters (618)
Basaltic caldera collapses are episodic, producing very-long-period (VLP) earthquakes up to Mw 5.4, with prolific inter-collapse (between collapses) volcano-tectonic (VT) seismicity. During the 2018 caldera collapse of Kīlauea Volcano, VT seismicity ceased following each collapse, and then accelerated to a quasi-steady rate prior to...
Assessment of salinity retention or mobilization by sediment-retention ponds near Delta, Colorado, 2019
Rodney J. Richards, Carleton R. Bern, Victoria Moreno
2023, Scientific Investigations Report 2023-5071
Salinity control efforts in the Colorado River Basin have focused on mobilization of salts from irrigated land, but nonirrigated rangelands are also a source of salinity. In particular, lands where soils have formed from the Late Cretaceous Mancos Shale under arid and semiarid climates contain considerable quantities of salt, mainly...
Efficacy of machine learning image classification for automated occupancy-based monitoring
Robert Charles Lonsinger, Marlin M. Dart, Randy T. Larsen, Robert N. Knight
2023, Remote Sensing in Ecology and Conservation (10) 56-71
Remote cameras have become a widespread data-collection tool for terrestrial mammals, but classifying images can be labor intensive and limit the usefulness of cameras for broad-scale population monitoring. Machine learning algorithms for automated image classification can expedite data processing, but image misclassifications may influence inferences. Here, we used camera data...
Potential effects of projected pumping scenarios on future water-table elevations near Kirtland Air Force Base in Albuquerque, New Mexico
Allison K. Flickinger
2023, Scientific Investigations Report 2023-5075
The U.S. Geological Survey, in cooperation with the Air Force Civil Engineer Center, simulated different groundwater pumping scenarios from 2016 to 2050 to determine the potential future changes in groundwater levels in areas around the Kirtland Air Force Base Bulk Fuels Facility and an ethylene dibromide (EDB) plume. Projections of...
Stakeholder attitudes and perspectives on wildlife disease surveillance as a component of a One Health approach in Thailand
Serena Elise George, Moniek Smink, Nareerat Sangkachai, Anuwat Wiratsudakul, Walasinee Sakcamduang, Sarin Suwanpakdee, Jonathan M. Sleeman
2023, One Health Newsletter (17)
Coordinated wildlife disease surveillance (WDS) can help professionals across disciplines effectively safeguard human, animal, and environmental health. The aims of this study were to understand how WDS in Thailand is utilized, valued, and can be improved within a One Health framework. An online questionnaire was distributed to 183 professionals (55.7%...
BioLake: A first assessment of lake temperature-derived bioclimatic predictors for aquatic invasive species
Ryan C. Burner, Wesley Daniel, Peder S. Engelstad, Christopher J. Churchill, Richard A. Erickson
2023, Ecosphere (14)
Aquatic invasive species (AIS) present major ecological and economic challenges globally, endangering ecosystems and human livelihoods. Managers and policy makers thus need tools to predict invasion risk and prioritize species and areas of concern, and they often use native range climate matching to determine...
Successful eradication of invasive American bullfrogs leads to coextirpation of emerging pathogens
Blake R. Hossack, David L. Hall, Catherine L. Crawford, Caren S. Goldberg, Erin L. Muths, Brent H. Sigafus, Thierry Chambert
2023, Conservation Letters (16)
Interventions of the host–pathogen dynamics provide strong tests of relationships, yet they are still rarely applied across multiple populations. After American bullfrogs (Rana catesbeiana) invaded a wildlife refuge where federally threatened Chiricahua leopard frogs (R. chiricahuensis) were reintroduced 12 years prior, managers launched a landscape-scale...
Predicting inundation dynamics and hydroperiods of small, isolated wetlands using a machine learning approach
Jeffrey W. Riley, Charles C. Stillwell
2023, Wetlands (43)
The duration of inundation or saturation (i.e., hydroperiod) controls many wetland functions. In particular, it is a key determinant of whether a wetland will provide suitable breeding habitat for amphibians and other taxa that often have specific hydrologic requirements. Yet, scientists and land managers often are...
Impacts of spontaneous waterfall development on bedrock river longitudinal profile morphology
Sophie D. Rothman, Joel S. Scheingross, Scott W. McCoy, Helen Willemien Dow
2023, Journal of Geophysical Research - Earth Surface (128)
River profiles are shaped by climatic and tectonic history, lithology, and internal feedbacks between flow hydraulics, sediment transport and erosion. In steep channels, waterfalls may self-form without changes in external forcing (i.e., autogenic formation) and erode at rates faster or slower than an equivalent channel without waterfalls....
Postfire hydrologic response along the central California (USA) coast: Insights for the emergency assessment of postfire debris-flow hazards
Matthew A. Thomas, Jason W. Kean, Scott W. McCoy, Donald N. Lindsay, Jaime Kostelnik, David B. Cavagnaro, Francis K. Rengers, Amy E. East, Jonathan Schwartz, Douglas P. Smith, Brian D. Collins
2023, Landslides (20) 2421-2436
The steep, tectonically active terrain along the Central California (USA) coast is well known to produce deadly and destructive debris flows. However, the extent to which fire affects debris-flow susceptibility in this region is an open question. We documented the occurrence of postfire debris floods and flows following the landfall...
Translating stakeholder narratives for participatory modeling in landscape ecology
Jelena Vukomanovic, Lindsey Smart, Jennifer Koch, Virginia Dale, Sophie Plassin, Kristin B. Byrd, Colin Beier, Frederik Doyon
2023, Landscape Ecology (38) 2453-2474
ContextEngaging stakeholders in research is needed for many of the sustainability challenges that landscape ecologists address. Involving stakeholders’ perspectives through narratives in participatory modeling fosters better understanding of the problem and evaluation of the acceptability of tradeoffs and creates buy-in for management actions. However, stakeholder-driven inputs often take...
A detailed view of the 2020-2023 southwestern Puerto Rico seismic sequence with deep learning
Clara Yoon, Elizabeth S. Cochran, Elizabeth A. Vanacore, Victor Huerfano, Gisela Baez-Sanchez, John D. Wilding, Jonathan D. Smith
2023, Bulletin of the Seismological Society of America (113) 2377-2415
The 2020–2023 southwestern Puerto Rico seismic sequence, still ongoing in 2023, is remarkable for its multiple‐fault rupture complexity and elevated aftershock productivity. We applied an automatic workflow to continuous data from 43 seismic stations in Puerto Rico to build an enhanced earthquake catalog with ∼180,000 events for the 3+ yr...
Structural discontinuities and their control on hydrothermal systems in the Great Basin, USA
Drew L. Siler
2023, Geoenergy (1)
Faults are important controls on hydrothermal circulation worldwide. More specifically, structural discontinuities, i.e. locations where faults interact and intersect, host many hydrothermal systems. In the Great Basin, western USA, an extensive characterization effort demonstrated that hydrothermal systems are controlled by one (or more) of eight types of structural discontinuities. Presumably,...
Beyond simple trend tests: Detecting significant changes in design-flood quantiles
Chandramauli Awasthi, Stacey A. Archfield, Brian J. Reich, Arumugam Sankarasubramanian
2023, Geophysical Research Letters (50)
Changes in annual maximum flood (AMF), which are usually detected using simple trend tests (e.g., Mann-Kendall test (MKT)), are expected to change design-flood estimates. We propose an alternate framework to detect significant changes in design-flood between two periods and evaluate it for synthetically generated AMF from the...
