The role of preexisting upper plate strike-slip faults during long-lived (ca. 30 Myr) oblique flat slab subduction, southern Alaska
Trevor Waldien, Richard O. Lease, Sarah Roeske, Jeff Benowitz, Paul O'Sullivan
2022, Earth and Planetary Science Letters (557)
Upper plates of subduction zones commonly respond to flat slab subduction by structural reactivation, magmatic arc disruption, and foreland basin inversion. However, the role of active strike-slip faults in focusing convergent deformation and magmatism in response to oblique flat slab subduction remains...
Temperature-based modeling of incubation period to protect loggerhead hatchlings on an urban beach in Northwest Florida
Kennard P. Watson, Margaret Lamont
2022, Journal of Experimental Marine Biology and Ecology (546)
Sea turtle hatchlings face many natural and anthropogenic threats during their short journey to the water after emerging from nests. Reducing hatchling mortality is critical to population recovery of imperiled sea turtle species; however, protecting hatchlings is particularly challenging on beaches degraded by human development and disturbances, including artificial lighting. Managers...
Ontogeny of eDNA shedding during early development in Chinook Salmon (Oncorhynchus tshawytscha)
Carl O. Ostberg, Dorothy M. Chase
2022, Environmental DNA (4) 339-348
Knowledge of the timing of major life history events in aquatic species is important for informing conservation and resource management planning. Accordingly, surveys of environmental DNA (eDNA) have been performed to determine the efficacy of eDNA for providing information on life history events, primarily focusing on...
Modeling seismic network detection thresholds using production picking algorithms
David C. Wilson, Emily Wolin, William L. Yeck, Robert Anthony, Adam T. Ringler
2022, Seismological Research Letters (93) 149-160
Estimating the detection threshold of a seismic network (the minimum magnitude earthquake that can be reliably located) is a critical part of network design and can drive network maintenance efforts. The ability of a station to detect an earthquake is often estimated by assuming the...
Snow depth retrieval with an autonomous UAV-mounted software-defined radar
S. Prager, Graham A. Sexstone, Daniel J McGrath, John W, Fulton, Mahta Moghaddam
2022, Transactions on Geoscience and Remote Sensing (TGARS) (60)
We present results from a field campaign to measure seasonal snow depth at Cameron Pass, Colorado, using a synthetic ultrawideband software-defined radar (SDRadar) implemented in commercially available Universal Software Radio Peripheral (USRP) software-defined radio hardware and flown on a small hexacopter unmanned aerial vehicle (UAV). We...
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,...
Retention and dimensional changes of evergreen brush piles within a flood control reservoir
C.A. Aldridge, D.M. Norris, H.R. Hatcher, G. Coppola, M.E. Colvin, Leandro E. Miranda
2022, Journal of Fish and Wildlife Management (13) 223-235
Brush piles (i.e., trees and large woody debris) are often installed in reservoirs to supplement fish habitat. The retention and dimensional change of brush piles after installation is important information that can be used to maximize the effectiveness of this management action. We evaluated the retention and dimensional change of...
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...
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...
Range eclipse leads to tenuous survival of a rare lizard species on a barrier atoll
Jonathan Q. Richmond, Elijah Wostl, Robert Reed, Robert N. Fisher
2022, Oryx (56) 63-72
Rediscovery of living populations of a species that was presumed to be extirpated can generate new narratives for conservation in areas suffering from losses in biodiversity. We used field observations and DNA sequence data to verify the rediscovery of the Critically Endangered scincid lizard Emoia slevini on Dåno′,...
Defining aquatic habitat zones across northern Gulf of Mexico estuarine gradients through submerged aquatic vegetation species assemblage and biomass data
K. E. DeMarco, E. R. Hillmann, J. A. Nyman, Brady Couvillion, Megan K. La Peyre
2022, Estuaries and Coasts (45) 148-167
Submerged aquatic vegetation (SAV) creates highly productive habitats in coastal areas, providing support for many important species of fish and wildlife. Despite the importance and documented loss of SAV across fresh to marine habitats globally, we lack consistent baseline data on estuarine SAV resources, particularly in the northern Gulf of...
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...
Populations using public-supply groundwater in the conterminous U.S. 2010; Identifying the wells, hydrogeologic regions, and hydrogeologic mapping units
Tyler D. Johnson, Kenneth Belitz, Leon J. Kauffman, Elise Watson, John T. Wilson
2022, Science of the Total Environment (806)
Most Americans receive their drinking water from publicly supplied sources, a large portion of it from groundwater. Mapping these populations consistently and at a high resolution is important for understanding where the resource is used and needs to be protected. The results show that...
Improved fire severity mapping in the North American boreal forest using a hybrid composite method
Lisa M. Holsinger, Sean Parks, Lisa Saperstein, Rachel A. Loehman, Ellen Whitman, Jennifer L. Barnes, Marc-André Parisien
2022, Remote Sensing in Ecology and Conservation (8) 222-235
Fire severity is a key driver shaping the ecological structure and function of North American boreal ecosystems, a biome dominated by large, high-intensity wildfires. Satellite-derived burn severity maps have been an important tool in these remote landscapes for both fire and resource management. The conventional methodology to produce satellite-inferred fire...
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...
Integrating seabird dietary and groundfish stock assessment data: Can puffins predict pollock spawning stock biomass in the North Pacific?
William J. Sydeman, Sarah Ann Thompson, John F. Piatt, Stephani Zador, Martin W. Dorn
2022, Fish and Fisheries (23) 213-226
Information on the annual variability in abundance and growth of juvenile groundfish can be useful for predicting fisheries stocks, but is often poorly known owing to difficulties in sampling fish in their first year of life. In the Western Gulf of Alaska (WGoA) and Eastern Bering...
Urban proximity while breeding is not a predictor of perfluoroalkyl substance contamination in the eggs of brown pelicans
B. P. Wilkinson, A. R. Robuck, R. Lohman, H. M. Pickard, Patrick G.R. Jodice
2022, Science of the Total Environment (803)
Identifying sources of exposure to chemical stressors is difficult when both target organisms and stressors are highly mobile. While previous studies have demonstrated that populations of some organisms proximal to urban centers may display increased burdens of human-created chemicals compared to more distal populations, this relationship may not be universal...
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...
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...
Connecting regional-scale tree distribution models with seed dispersal kernels
Ram C. Neupane, James A. Powell, Thomas C. Edwards Jr.
2022, Applied Mathematics and Computation (412)
Regional scale forest distribution models are important tools for biogeography and understanding the structure of forest communities in space. These models take climate and geographic variables as input and are therefore helpful for long-term decision support and climate adaptation planning. Generally, local processes of tree germination and seedling survival are...
