From site to system: Approaches for producing system-wide estimates of fish habitat in large rivers
H. E. Robinson, Mark J. Henderson, Russell Perry, Damon H. Goodman, Nicholas A. Som
2022, River Research and Applications (38) 1192-130
Worldwide, many productive rivers are dam-regulated and rely on flow management strategies that must balance support of ecological processes with human water use. One component of evaluating this balance is to understand ecological consequences of alternative flow management strategies, which has often been accomplished by coupling...
A new approach for representing agent-environment feedbacks: Coupled agent-based and state-and-transition simulation models
Brian W. Miller, Leonardo Frid
2022, Landscape Ecology (37) 43-58
ContextAgent-based models (ABMs) and state-and-transition simulation models (STSMs) have proven useful for understanding processes underlying social-ecological systems and evaluating practical questions about how systems might respond to different scenarios. ABMs can simulate a variety of agents (autonomous units, such as wildlife or people); agent characteristics, decision-making, adaptive behavior,...
Joint effects of climate, tree size, and year on annual tree growth derived using tree-ring records of ten globally distributed forests
Kristina J. Anderson-Teixeira, Valentine Herrmann, Christy Rollinson, Bianca Gonzales, Erika B. Gonzalez-Akre, Neil Pederson, M. Ross Alexander, Craig D. Allen, Raquel Alfaro-Sanchez, Tala Awada, Jennifer L. Baltzer, Patrick J. Baker, Joseph D. Birch, Sarayudh Bunyavejchewin, Paolo Cherubini, Stewart J. Davies, Cameron Dow, Ryan Helcoski, Jakub Kaspar, James A. Lutz, Ellis Q. Margolis, Justin Maxwell, Sean M. McMahon, Camille Piponiot, Sabrina E. Russo, Pavel Šamonil, Anastasia E. Sniderhan, Alan J. Tepley, Ivana Vasickova, Mart Vlam, Pieter A. Zuidema
2022, Global Change Biology (28) 245-266
Tree rings provide an invaluable long-term record for understanding how climate and other drivers shape tree growth and forest productivity. However, conventional tree-ring analysis methods were not designed to simultaneously account for the effects of climate, tree size, and other drivers on individual growth, which has limited the potential to...
Quantifying status and trends from monitoring surveys: Application to Pygmy Whitefish (Prosopium coulterii) in Lake Superior
Adam S van der Lee, Mark R. Vinson, Marten A. Koops
2022, Canadian Journal of Fisheries and Aquatic Sciences (79) 795-802
Population assessments of fish species often rely on data from surveys with different objectives, such as measuring biodiversity or community dynamics. These surveys often contain spatial–temporal dependencies that can greatly influence conclusions drawn from analyses. Pygmy whitefish (PWF, Prosopium coulterii) populations in Lake Superior were recently assessed as Threatened by the...
Predicting regional fluoride concentrations at public and domestic supply depths in basin-fill aquifers of the western United States using a random forest model
Celia Z Rosecrans, Kenneth Belitz, Katherine Marie Ransom, Peter B. McMahon, Paul E. Stackelberg
2022, Science of the Total Environment (806)
A random forest regression (RFR) model was applied to over 12,000 wells with measured fluoride (F) concentrations in untreated groundwater to predict F concentrations at depths used for domestic and public supply in basin-fill aquifers of the western United...
Refinements to the Graves–Pitarka kinematic rupture generator, including a dynamically consistent slip‐rate function, applied to the 2019 Mw 7.1 Ridgecrest earthquake
Arben Pitarka, Robert Graves, Kojiro Irikura, Ken Miyakoshi, Changjiang Wu, Hiroshi Kawase, Arthur Rodgers, David McCallen
2022, Bulletin of the Seismological Society of America (112) 287-306
The main objective of this study is to develop physics‐based constraints on the spatiotemporal variation of the slip‐rate function using a simplified dynamic rupture model. First, we performed dynamic rupture modeling of the 2019 Mw 7.1 Ridgecrest, California, earthquake, to analyze the effects of depth‐dependent...
Hazard characterization for alternative intensity measures using the total probability theorem
Michael W. Greenfield, Andrew James Makdisi
2022, Earthquake Spectra (38) 1021-1046
Since their inception in the 1980s, simplified procedures for the analysis of liquefaction hazards have typically characterized seismic loading using a combination of peak ground acceleration and earthquake magnitude. However, more recent studies suggest that certain evolutionary intensity measures (IMs) such as Arias intensity or cumulative absolute...
Projected impact of sea-level rise and urbanization on mottled duck (Anas fulvigula) habitat along the Gulf Coast of Louisiana and Texas through 2100
J.A. Moon, S.E. Lehnen, K.L. Metzger, M.A. Squires, M.G. Brasher, B.C. Wilson, W.C. Conway, David A. Haukos, B.E. Davis, F.C. Rohwer, E.M. Wehland, B.M. Ballard
2022, Ecological Indicators (132)
Coastal wetlands along the Gulf of Mexico support a wide diversity of wildlife, are important nurseries for sport and commercial fisheries, provide erosion and flood control, and serve many other ecological functions and services. These marshes have been declining in area and degrading at alarming rates since the 1930s. Effective...
Genome-wide SNP analysis of three moose subspecies at the southern range limit in the contiguous United States
Jason Ferrante, Chase H. Smith, Laura Thompson, Margaret Hunter
2022, Conservation Genetics (23) 109-121
Genome-wide evaluations of genetic diversity and population structure are important for informing management and conservation of trailing-edge populations. North American moose (Alces alces) are declining along portions of the southern edge of their range due to disease, species interactions, and marginal habitat, all of which may...
The seismic hazard implications of declustering and poisson assumptions inferred from a fully time‐dependent model
Edward H. Field, Kevin R. Milner, Nico Luco
2022, Bulletin of the Seismological Society of America (112) 527-537
We use the Third Uniform California Earthquake Rupture Forecast (UCERF3) epidemic‐type aftershock sequence (ETAS) model (UCERF3‐ETAS) to evaluate the effects of declustering and Poisson assumptions on seismic hazard estimates. Although declustering is necessary to infer the long‐term spatial distribution of earthquake rates, the question...
Local environment and individuals’ beliefs: The dynamics shaping public support for sustainability policy in an agricultural landscape
Gabriel Granco, Marcellus Caldas, Jason Bergtold, Jessica L. Heier Stamm, Martha E. Mather, Matthew Sanderson, Melinda Daniels, Aleksey Y. Sheshukov, David A. Haukos, Steven M. Ramsey
2022, Journal of Environmental Management (301)
Agricultural landscapes are the bleeding-edge in the advancement of sustainability and climate change adaptation. Our study focuses on how individual support for sustainability policy is shaped in coupled natural and human systems. We present an agent-based model in which a cultural decision-rule quantifies the probability that a stakeholder decides to...
Rayleigh-wave ellipticity in weakly heterogeneous layered media
Matthew M. Haney, Victor C. Tsai
2022, Geophysical Journal International (228) 1313-1323
We derive approximate expressions for the ellipticity (i.e. horizontal-to-vertical or vertical-to-horizontal ratio) of Rayleigh waves propagating in a layered medium. The approximation is based on the generalized energy equation for Rayleigh waves, which has been used previously to obtain perturbational results for ellipticity. For a medium with weakly heterogeneous layers,...
Estimating urban air pollution contribution to South Platte River nitrogen loads with National Atmospheric Deposition Program data and SPARROW model
Gregory A. Wetherbee, Michael Wieczorek, Dale M. Robertson, David A. Saad, Jon Novick, M. Alisa Mast
2022, Journal of Environmental Management (301)
Air pollution is commonly disregarded as a source of nutrient loading to impaired surface waters managed under the Clean Water Act per states’ 303(d) list programs. The contribution of air pollution to 2017–2018 South Platte River nitrogen (N) loads was estimated from the headwaters to...
Imaging the next Cascadia earthquake: Optimal design for a seafloor GNSS- A network
Eileen L. Evans, Sarah E. Minson, David Chadwell
2022, Geophysical Journal International (228) 944-957
The Cascadia subduction zone in the Pacific Northwest of the United States of America capable of producing magnitude ∼9 earthquakes, likely often accompanied by tsunamis. An outstanding question in this region is the degree and spatial extent of interseismic strain accumulation on the subduction megathrust. Seafloor geodetic methods combining GNSS...
Targeted and non-targeted analysis of young-of-year smallmouth bass using comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry
Paige Teehan, Megan K. Schall, Vicki S. Blazer, Frank L Dorman
2022, Science of the Total Environment (806)
Smallmouth bass in the Susquehanna River Basin, Chesapeake Bay Watershed, USA, have been exhibiting clinical signs of disease and reproductive endocrine disruption (e.g., intersex, male plasma vitellogenin) for over fifteen years. Previous histological and targeted chemical analyses have identified infectious agents and pollutants in fish tissues including organic contaminants, mercury,...
The 6 May 1947 Milwaukee, Wisconsin, earthquake
Susan E. Hough
2022, Seismological Research Letters (93) 402-412
The State of Wisconsin is not known for earthquake activity. The authoritative public‐facing U.S. Geological Survey Comprehensive Catalog of earthquakes includes only three small (magnitude < 2) earthquakes in the state, all instrumentally recorded. Although other catalogs include more events in Wisconsin, experience has...
Effect of fixing earthquake depth in ShakeAlert algorithms on performance for intraslab earthquakes
Mika Thompson, J. Renate Hartog, Erin A. Wirth
2022, Seismological Research Letters (93) 277-287
We investigate whether assuming a fixed shallow depth in the ShakeAlert network‐based earthquake early warning system is sufficient to produce accurate ground‐motion based alerts for intraslab earthquakes. ShakeAlert currently uses a fixed focal depth of 8 km to estimate earthquake location and magnitude. This is...
Post-fire temporal trends in soil-physical and -hydraulic properties and simulated runoff generation: Insights from different burn severities in the 2013 Black Forest Fire, CO, USA
Brian A. Ebel, John A. Moody, Deborah A. Martin
2022, Science of the Total Environment (802) 1-14
Burn severity influences on post-fire recovery of soil-hydraulic properties controlling runoff generation are poorly understood despite the importance for parameterizing infiltration models. We measured soil-hydraulic properties of field-saturated hydraulic conductivity (Kfs), sorptivity (S), and wetting front potential (ψf) for four years after the 2013 Black Forest Fire, Colorado, USA at...
Nearshore microfossil assemblages in a Caribbean reef environment show variable rates of recovery following Hurricane Irma
Stephen Mitchell, Jessica Pilarczyk, Michaela Spiske, Bruce E. Jaffe
2022, Sedimentology (69) 1209-1230
Modern microfossil distributions reflect site-specific habitats and provide an opportunity to assess sediment transport pathways in the nearshore environment. When applied to overwash deposits in the geological record, they provide insight into sediment provenance and transport, factors important for understanding patterns of frequency and intensity of...
Identifying climate-resistant vernal pools: Hydrologic refugia for amphibian reproduction under droughts and climate change
Jennifer M. Cartwright, Toni Lyn Morelli, Evan H. Campbell Grant
2022, Ecohydrology (15)
Vernal pools of the northeastern United States provide important breeding habitat for amphibians but may be sensitive to droughts and climate change. These seasonal wetlands typically fill by early spring and dry by mid-to-late summer. Because climate change may produce earlier and stronger growing-season evapotranspiration combined...
Diffuse deformation and surface faulting distribution from sub-metric image correlation along the 2019 Ridgecrest ruptures (California, USA)
Solene L. Antoine, Yann Klinger, Arthur Delorme, Kang Wang, Roland Burgmann, Ryan D. Gold
2022, Bulletin of the Seismological Society of America (111) 2275-2302
The 2019 Mw">Mw 6.4 and 7.1 Ridgecrest, California, earthquake sequence (July 2019) ruptured consecutively a system of high‐angle strike‐slip cross faults (northeast‐ and northwest‐trending) within 34 hr. The complex rupture mechanism was illuminated by seismological and geodetic...
Risk-based wellhead protection decision support: A repeatable workflow approach
Michael N. Fienen, Nicholas Corson-Dosch, Jeremy T. White, Andrew T. Leaf, Randall J. Hunt
2022, Groundwater (60) 71-86
Environmental water management often benefits from a risk-based approach where information on the area of interest is characterized, assembled, and incorporated into a decision model considering uncertainty. This includes prior information from literature, field measurements, professional interpretation, and data assimilation resulting in a decision tool with...
A big problem for small earthquakes: Benchmarking routine magnitudes and conversion relationships with coda-envelope-derived Mw in southern Kansas and northern Oklahoma
David R. Shelly, Kevin Mayeda, Justin Barno, Katherine M. Whidden, Morgan P. Moschetti, Andrea L. Llenos, Justin Rubinstein, William L. Yeck, Paul S. Earle, Rengin Gok, William R. Walter
2022, Bulletin of the Seismological Society of America (BSSA) (112) 210-225
Earthquake magnitudes are widely relied upon measures of earthquake size. Although moment magnitude (Mw">MwMw) has become the established standard for moderate and large earthquakes, difficulty in reliably measuring seismic moments for...
Factors affecting nest success of colonial nesting waterbirds in southwest Louisiana
K. Ritenour, Sammy L. King, S. M. Collins, M.D. Kaller
2022, Estuaries and Coasts (45) 897-912
Subsidence and accelerated sea level rise impact nesting area availability and flood probabilities of breeding islands for colonial nesting waterbirds. In 2017 and 2018, we monitored 855 nests of four species of colonial nesting waterbirds on Rabbit Island, LA, to determine factors affecting nest and chick...
Basin and site effects in the U.S. Pacific Northwest estimated from small‐magnitude earthquakes
John Rekoske, Morgan P. Moschetti, Eric M. Thompson
2022, Bulletin of the Seismological Society of America (112) 438-456
Earthquake hazards in the U.S. Pacific Northwest (PNW) are increased by the presence of deep sedimentary basins that amplify and prolong ground shaking. To better understand basin and site effects on ground motions, we compile a database of recordings from crustal and intraslab earthquakes. We...
