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...
Solutions in microbiome engineering: Prioritizing barriers to organism establishment
Michaeline B.N. Albright, Stilianos Louca, Daniel E. Winkler, Kelli L. Feeser, Sarah-Jane Haig, Katrine L. Whiteson, Joanne B. Emerson, John M. Dunbar
2022, The ISME Journal: Multidisciplinary Journal of Microbial Ecology (16) 331-338
Microbiome engineering is increasingly being employed as a solution to challenges in health, agriculture, and climate. Often manipulation involves inoculation of new microbes designed to improve function into a preexisting microbial community. Despite, increased efforts in microbiome engineering inoculants frequently fail to establish and/or confer long-lasting...
Incorporating antenna detections into abundance estimates of fish
Maria C. Dzul, Charles B. Yackulic, William L. Kendall, Dana L. Winkelman, Mary M Conner, Michael D. Yard
2022, Canadian Journal of Fisheries and Aquatic Sciences (79) 436-447
Autonomous passive integrated transponder (PIT) tag antennas are commonly used to detect fish marked with PIT tags but cannot detect unmarked fish, creating challenges for abundance estimation. Here we describe an approach to estimate abundance from paired physical capture and antenna detection data in closed and open mark-recapture...
The US Geological Survey ground failure product: Near-real-time estimates of earthquake-triggered landslides and liquefaction
Kate E. Allstadt, Eric M. Thompson, Randall W. Jibson, David J. Wald, Mike Hearne, Edward J. Hunter, Jeremy Fee, Heather Schovanec, Daniel Slosky, Kirstie Lafon Haynie
2022, Earthquake Spectra (38) 5-36
Since late 2018, the US Geological Survey (USGS) ground failure (GF) earthquake product has provided publicly available spatial estimates of earthquake-triggered landslide and liquefaction hazards, along with the qualitative hazard and population exposure-based alerts for M > 6 earthquakes worldwide and in near real time (within ∼30 min). Earthquake losses...
NGA-subduction global ground motion models with regional adjustment factors
Grace Alexandra Parker, Jonathan P. Stewart, David Boore, Gail M. Atkinson, Behzad Hassani
2022, Earthquake Spectra (38) 456-493
We develop semi-empirical ground motion models (GMMs) for peak ground acceleration, peak ground velocity, and 5%-damped pseudo-spectral accelerations for periods from 0.01 to 10 s, for the median orientation-independent horizontal component of subduction earthquake ground motion. The GMMs are applicable to interface and intraslab subduction earthquakes in Japan, Taiwan, Mexico, Central...
From drought to deluge: Spatiotemporal variation in migration routing, survival, travel time and floodplain use of an endangered migratory fish
Dalton Hance, Russell Perry, Adam C. Pope, Arnold J. Ammann, Jason L. Hassrick, Gabriel S. Hansen
2022, Canadian Journal of Fisheries and Aquatic Sciences (79) 410-428
We developed a novel statistical model to relate the daily survival and migration dynamics of an endangered anadromous fish to river flow and water temperature during both extreme drought and severe flooding in an intensively managed river system. Our Bayesian temporally stratified multistate mark recapture model integrates over...
Understanding the effects of climate change via disturbance on pristine arctic lakes — Multitrophic level response and recovery to a 12-yr, low-level fertilization experiment
Phaedra E. Budy, Casey A. Pennock, Anne E. Giblin, Chris Luecke, D. L. White, George Kling
2022, Limnology and Oceanography (67) S224-S241
Effects of climate change-driven disturbance on lake ecosystems can be subtle; indirect effects include increased nutrient loading that could impact ecosystem function. We designed a low-level fertilization experiment to mimic persistent, climate change-driven disturbances (deeper thaw, greater weathering, or thermokarst failure) delivering nutrients to arctic lakes. We measured responses of...
Trachyandesite of Kennedy Table, its vent complex, and post−9.3 Ma uplift of the central Sierra Nevada
Edward Hildreth, Judith Fierstein, Fred M. Phillips, Andrew T. Calvert
2022, GSA Bulletin (134) 1143-1159
Tectonic interpretation of the central Sierra Nevada—whether the crest of the Sierra Nevada (California, USA) was uplifted in the late Cenozoic or whether the range has undergone continuous down-wearing since the Late Cretaceous—is controversial, since there is no obvious tectonic explanation for renewed uplift. The strongest direct evidence for late...
Potential role for microbial ureolysis in the rapid formation of carbonate tufa mounds
Fernando Medina Ferrer, Michael R. Rosen, Virginia V. Russell, Jayme Feyhl-Buska, Fredrik Sonderholm, Sean Loyd, Russell Shapiro, Blake W. Stamps, Victoria Petryshyn, Cansu Demirel-Floyd, Jake V. Bailey, Hope A Johnson, John R. Spear, Frank A Corsetti
2022, Geobiology (20) 79-97
Modern carbonate tufa towers in the alkaline (~pH 9.5) Big Soda Lake (BSL), Nevada, exhibit rapid precipitation rates (exceeding 3 cm/year) and host diverse microbial communities. Geochemical indicators reveal that carbonate precipitation is, in part, promoted by the mixing of calcium-rich groundwater and carbonate-rich lake water, such...
Modeling morphodynamics of coastal response to extreme events: What shape are we in?
Christopher R. Sherwood, Ap van Dongeren, James Doyle, Christie Hegermiller, T. J. Hsu, Tarandeep S. Kalra, Maitane Olabarrieta, Allison Penko, Yashar Rafati, Dano Roelvink, Marlies van der Lugt, Jay Veeramony, John C. Warner
2022, Annual Review of Marine Science (14) 457-492
This review focuses on recent advances in process-based numerical models of the impact of extreme storms on sandy coasts. Driven by larger-scale models of meteorology and hydrodynamics, these models simulate morphodynamics across the Sallenger storm-impact scale, including swash, collision, overwash, and inundation. Models are becoming both wider (as more processes...
Taxonomic, temporal, and spatial variations in zooplankton fatty acid composition in Puget Sound, WA, USA
Minna Hiltunen, Ursula Strandberg, Michael T. Brett, Amanda K. Winans, David Beauchamp, Miika Kotila, Julie E. Keister
2022, Estuaries and Coasts (45) 567-581
Fatty acid (FA) content and composition of zooplankton in Puget Sound, Washington (USA) was studied to investigate the nutritional quality of diverse zooplankton prey for juvenile salmon (Oncorhynchus spp.) in terms of their essential fatty acid (EFA) content. The study focus was on eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and arachidonic...
Quantifying the response of nitrogen speciation to hydrology in the Chesapeake Bay Watershed using a multilevel modeling approach
Isabella Bertani, Gopal Bhatt, Gary W. Shenk, Lewis C. Linker
2022, Journal of American Water Resources Association (58) 792-804
Excessive nitrogen (N) inputs to coastal waters can lead to severe eutrophication and different chemical forms of N exhibit varying levels of effectiveness in fueling primary production. Efforts to mitigate N fluxes from coastal watersheds are often guided by models that predict changes in N loads...
High-resolution remote sensing and multistate occupancy estimation identify drivers of spawning site selection in fall chum salmon (Oncorhynchus keta) across a sub-Arctic riverscape
Chelsea M. Clawson, Jeffrey A. Falke, Larissa L. Bailey, Joshua Rose, Anupma Prakash, Aaron E. Martin
2022, Canadian Journal of Fisheries and Aquatic Sciences (79) 380-394
Groundwater upwellings provide warmer, stable overwinter temperatures for developing salmon embryos, which may be particularly important in cold, braided, gravel-bed sub-Arctic rivers. We used a three-year time series of aerial counts and remote sensing to estimate the distribution of low and high aggregations of spawning fall chum salmon (Oncorhynchus keta),...
Late Quaternary deglaciation of Prince William Sound, Alaska
Peter J. Haeussler, Ari Matmon, Maurice Arnold, Georges Aumaitre, Didier Bourles, Karim Keddadouche
2022, Quaternary Research (105) 115-134
To understand the timing of deglaciation of the northernmost marine-terminating glaciers of the Cordilleran Ice Sheet (CIS), we obtained 26 10Be surface-exposure ages from glacially scoured bedrock surfaces in Prince William Sound (PWS), Alaska. We sampled six elevation transects between sea level and 620 m and spanning...
Temporal and petrogenetic links between Mesoproterozoic alkaline and carbonatite magmas at Mountain Pass, California
Kathryn E. Watts, Gordon B. Haxel, David M. Miller
2022, Economic Geology (117) 1-23
Mountain Pass is the site of the most economically important rare earth element (REE) deposit in the United States. Mesoproterozoic alkaline intrusions are spatiotemporally associated with a composite carbonatite stock that hosts REE ore. Understanding the genesis of the alkaline and carbonatite magmas is an essential scientific goal for a...
Species-specific demographic and behavioral responses to food availability during migratory stopover
A. M. Tucker, Conor P. McGowan, James E. Lyons, A. Derose-Wilson, N.A. Clark
2022, Population Ecology (64) 19-34
Understanding the effects of migratory stopover site conditions on both demographic rates and migratory behaviors is critical for interpreting changes in passage population sizes at stopover sites and predicting responses to future changes and conservation actions. We used a Bayesian formulation of the open robust design model to analyze mark-resight...
An integrated path for spatial capture–recapture and animal movement modeling
Brett T. McClintock, Briana Abrahms, Richard Chandler, Paul B. Conn, Sarah J. Converse, Robbie Emmet, Beth Gardner, Nathan J. Hostetter, Devin S. Johnson
2022, Ecology
Ecologists and conservation biologists increasingly rely on spatial capture–recapture (SCR) and movement modeling to study animal populations. Historically, SCR has focused on population-level processes (e.g., vital rates, abundance, density, and distribution), whereas animal movement modeling has focused on the behavior of individuals (e.g., activity budgets, resource selection, migration). Even though...
A Bayesian nonparametric approach to unmixing detrital geochronologic data
John R. Tipton, Glenn R. Sharman, Samuel Johnstone
2022, Mathematical Geosciences (54) 151-176
Sedimentary deposits constitute the primary record of changing environmental conditions that have acted on Earth’s surface over geologic time. Clastic material is eroded from source locations (parents) in sediment routing systems and deposited at sink locations (children). Both parents and children have characteristics that vary across many different dimensions, including...
Global application of an unoccupied aerial vehicle photogrammetry protocol for predicting aboveground biomass in non-forest ecosystems
Andrew Cunliffe, Karen Anderson, Fabio Boschetti, Richard E. Brazier, Hugh A. Graham, Isla H. Myers-Smith, Thomas Astor, Matthias M. Boer, Leonor G. Calvo, Patrick Clark, Michael D. Cramer, Miguel S. Encinas-Lara, Stephen M. Escarzaga, Adrian Fisher, Jose M Fernandez-Guisuraga, Katerina Gdulova, Breahna M. Gillespie, Anne Griebel, Niall P Hanan, Muhammed S. Hanggito, Stefan Haselberger, Caroline A. Havrilla, Phil Heilman, Wenjie Ji, Jason W. Karl, Sabine Kraushaar, Marguerite E. Mauritz, Mitchell Lyons, Irene Marzolff, C. D. McIntire, Daniel Metzen, Luis A. Mendez-Barroso, Simon C. Power, Jiri Prosek, Enoc Sanz-Ablanedo, Katherine J. Sauer, Damian Schulze-Bruninghoff, Petra Simova, Stephen Sitch, Julian L. Smit, Caiti M. Steele, Susana Suarez-Seoane, Sergio A. Vargas, Miguel L. Villarreal, Fleur Visser, Michael Wachendorf, Hannes Wirnsberger, Robert Wojcikiewicz
2022, Remote Sensing in Ecology and Conservation (8) 57-71
Non-forest ecosystems, dominated by shrubs, grasses and herbaceous plants, provide ecosystem services including carbon sequestration and forage for grazing, and are highly sensitive to climatic changes. Yet these ecosystems are poorly represented in remotely sensed biomass products and are undersampled by in situ monitoring. Current global change threats emphasize the need...
Shrub influence on soil carbon and nitrogen in a semi-arid grassland is mediated by precipitation and largely insensitive to livestock grazing
Heather L. Throop, Seth M. Munson, Nicole Hornslein, Mitchel P McClaran
2022, Arid Land Research and Management (36) 27-46
Dryland (arid and semi-arid) ecosystems globally provide more than half of livestock production and store roughly one-third of soil organic carbon (SOC). Biogeochemical pools are changing due to shrub encroachment, livestock grazing, and climate change. We assessed how vegetation microsite, grazing, and precipitation interacted to affect SOC and total nitrogen...
ShakeMap operations, policies, and procedures
David J. Wald, Charles Worden, Eric M. Thompson, Mike Hearne
2022, Earthquake Spectra (38) 756-777
The US Geological Survey’s ShakeMap is used domestically and globally for post-earthquake emergency management and response, engineering analyses, financial instruments, and other decision-making activities. Recent developments in the insurance, reinsurance, and catastrophe bond sectors link payouts of potentially hundreds of millions of dollars to ShakeMap products. Similarly, building codes, post-earthquake...
Multivariate Bayesian clustering using covariate-informed components with application to boreal vegetation sensitivity
Henry R. Scharf, Ann M. Raiho, Sierra Pugh, Carl A. Roland, David K. Swanson, Sarah E. Stehn, Mevin Hooten
2022, Biometrics (78) 1427-1440
Climate change is impacting both the distribution and abundance of vegetation, especially in far northern latitudes. The effects of climate change are different for every plant assemblage and vary heterogeneously in both space and time. Small changes in climate could result in large vegetation responses in sensitive assemblages but weak...
Short communication: evidence for geologic control of rip channels along Prince Edward Island, Canada
Phillipe Alan Wernette, Chris Houser
2022, Physical Geography (43) 145-162
Rip currents can move unsuspecting swimmers offshore rapidly and represent a significant risk to beach users worldwide, including along the northern coast of Prince Edward Island (PEI), Canada. Although many rip currents are ephemeral and/or spatially variable in response to changes in the nearshore bar morphology and wave and tidal...
Eye lenses reveal ontogenetic trophic and habitat shifts in an imperiled fish, Clear Lake hitch (Lavinia exilicauda chi)
Matthew J. Young, Veronica L. Violette, Justin Kinsey Clause, Miranda Bell-Tilcock, George Whitman, Rachel C. Johnson, Frederick V. Feyrer
2022, Canadian Journal of Fisheries and Aquatic Sciences (79) 21-30
Stable isotopes recorded in fish eye lenses are an emerging tool to track dietary shifts coincident with use of diverse habitats over the lifetime of individuals. Eye lenses are metabolically inert, sequentially deposited, archival tissues that can open avenues to chronicle contaminant exposures, diet histories, trophic dynamics and migratory histories...
