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...
Developing landslide chronologies using landslide-dammed lakes in the Oregon Coast Range
Logan Wetherell, William Struble, Sean Richard LaHusen
Adam M. Booth, Anita L. Grunder, editor(s)
2022, Book chapter, GSA field guide: From terranes to terrains: Geologic field guides on the construction and destruction of the Pacific Northwest
The Oregon Coast Range is a dynamic landscape that is continually shaped by shallow and deep-seated landslides that can have disastrous consequences to infrastructure and human lives. Searching for evidence of potentially coseismic mass wasting is incredibly difficult, particularly when historical observations are limited. Landslide-dammed lakes with submerged “ghost forests”...
Lake sturgeon seasonal movements in regulated and unregulated Missouri River tributaries
M.J. Moore, Craig P. Paukert, B. Brooke, T. Moore
2022, Ecohydrology (15)
Spatio-temporal movement patterns of aquatic organisms drive many ecological processes. However, dams block migrations and alter the hydrologic and thermal regimes influencing movement behaviour of freshwater fishes. In North America, many recovering southern Lake Sturgeon populations occur in rivers with hydroelectric dams, but few studies have examined the impact of...
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...
A stable isotope record of late Quaternary hydrologic change in the northwestern Brooks Range, Alaska (eastern Beringia)
Amanda L. King, Lesleigh Anderson, Mark B. Abbott, Mary Edwards, Matthew S. Finkenbinder, Bruce P. Finney, Matthew Wooller
2022, Journal of Quaternary Science (37) 928-943
A submillennial-resolution record of lake water oxygen isotope composition (δ18O) from chironomid head capsules is presented from Burial Lake, northwest Alaska. The record spans the Last Glacial Maximum (LGM; ~20–16k cal a bp) to the present and shows a series of large lake δ18O shifts (~5‰)....
Elevated levels of radiocarbon in methane dissolved in seawater reveal likely local contamination from nuclear powered vessels
D.J. Joung, Carolyn D. Ruppel, J. Southon, John D. Kessler
2022, Science of the Total Environment (806)
Measurements of the natural radiocarbon content of methane (14C-CH4) dissolved in seawater and freshwater have been used to investigate sources and dynamics of methane. However, during investigations along the Atlantic, Pacific, and Arctic Ocean Margins of the United States, as well as in the...
Multi-run migratory behavior of adult male lake sturgeon in a short river
Donna L. Parrish, Lisa K. Izzo, Gayle Barbin Zydlewski
2022, Journal of Great Lakes Research (47) 1400-1409
Lake sturgeon (Acipenser fulvescens) can migrate long distances to spawn, but many populations currently spawn in systems where the length of accessible riverine migratory habitat has been greatly reduced by dam construction. With the increased prevalence of shortened rivers, focusing on migratory dynamics in short rivers (<30 km) is beneficial to understanding...
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...
Rapid colonisation post-displacement contributes to native fish resilience
Samantha L. Alford, Annika W. Walters
2022, Ecology of Freshwater Fish (31) 347-357
Native freshwater fish are experiencing global declines. Determining what drives native fish resilience to disturbance is crucial to understanding their persistence in the face of multiple stressors. Fish colonisation ability may be one factor affecting population resilience after disturbance. We conducted displacement experiments in headwater streams in Wyoming, USA, to...
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...
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...
Evidence for interannual persistence of infectious influenza A viruses in Alaska wetlands
Andrew M. Ramey, Andrew B. Reeves, Benjamin Joel Lagasse, Vijay P. Patil, Laura E. Hubbard, Dana W. Kolpin, R. Blaine McCleskey, Deborah A. Repert, David E. Stallknecht, Rebecca L. Poulson
2022, Science of the Total Environment (803)
Influenza A viruses (IAVs) deposited by wild birds into the environment may lead to sporadic mortality events and economically costly outbreaks among domestic birds. There is a paucity of information, however, regarding the persistence of infectious IAVs within the environment following deposition. In this investigation, we assessed the persistence of...
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...
First documentation of long-distance travel by a Florida manatee to the Mexican Caribbean
Nataly Castelblanco-Martinez, Anmari Álvarez-Alemán, Raul Torres, Amy L. Teague, Sheri Barton, Kari A Rood, Eric A Ramos, Antonio A. Mignucci-Giannoni
2022, Ethology, Ecology and Evolution (34) 545-556
West Indian manatees (Trichechus manatus) are separated into two allopatric subspecies: the Florida manatee (T. m. latirostris) and the Antillean manatee (T. m. manatus). In the winter of 2020–2021, an adult manatee was sighted off the coast of Cancun, Quintana Roo, Mexico, in areas where Antillean manatees are...
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...
Physiological and nutritional constraints on zooplankton productivity due to eutrophication and climate change predicted using a resource-based modeling approach
Chen Zhang, Michael T. Brett, Jens M Nielsen, George B Arhonditsis, Ashley P Ballantyne, Jackie L Carter, Jacob Kann, Dorthe C Muller-Navarra, Daniel E. Schindler, Jason D. Stockwell, Monika Winder, David Beauchamp
2022, Canadian Journal of Fisheries and Aquatic Sciences (79) 472-486
Emerging evidence suggests that zooplankton production is affected by physiological and nutritional constraints due to climate change and eutrophication, which in turn could have broad implications for food-web dynamics and fisheries production. In this study, we developed a resource-based zooplankton production dynamics model that causally links freshwater cladoceran...
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...
