Evaluation of a roughness length parametrization accounting for wind–wave alignment in a coupled atmosphere–wave model
Sara Porchetta, O. Temel, John C. Warner, J.C. Munoz-Esparza, J Monbaliu, J. van Beeck, N. van Lipzig
2021, Quarterly Journal of the Royal Meteorological Society (147) 825-846
The importance of wind energy as an alternative energy source has increased over the latest years with more focus on offshore winds. A good estimation of the offshore winds is thus of major importance for this industry. Up to now the effect of the wind–wave (mis)alignment has not yet been...
Increasing comparability among coral bleaching experiments
Andrea G. Grottoli, R. J. Toonen, R. van Woesik, R. Vega Thurber, M. E. Warner, R. H. McLachlan, James Price, K. D. Bahr, I. B. Baums, K. Castillo, M. A. Coffroth, R. Cunning, K. Dobson, M. Donahue, James L. Hench, R. Iglesias-Prieto, D. W. Kemp, C. D. Kenkel, D. I. Kline, Ilsa B. Kuffner, Jessica Matthews, A. Mayfield, J. Padilla-Gamino, S. R. Palumbi, C. R. Voolstra, V. M. Weis, H. C. Wu
2021, Ecological Applications (31)
Coral bleaching is the single largest global threat to coral reefs worldwide. Integrating the diverse body of work on coral bleaching is critical to understanding and combating this global problem. Yet investigating the drivers, patterns, and processes of coral bleaching poses a major challenge. A recent review of published experiments...
Review of trap-and-haul for managing Pacific salmonids (Oncorhynchus spp.) in impounded river systems
Tobias J. Kock, John W. Ferguson, Matthew L. Keefer, Carl B. Schreck
2021, Reviews in Fish Biology and Fisheries (31) 53-94
High-head dams are migration barriers for Pacific salmon Oncorhynchus spp. in many river systems and recovery measures for impacted stocks are limited. Trap-and-haul has been widely used in attempts to facilitate recovery but information from existing programs has not been synthesized to inform improvements to aid recovery of...
Evaluating natural experiments in ecology: Using synthetic controls in assessments of remotely sensed land treatments
Stephen E. Fick, Travis W. Nauman, Colby C. Brungard, Michael C. Duniway
2021, Ecological Applications (31)
Many important ecological phenomena occur on large spatial scales and/or are unplanned and thus do not easily fit within analytical frameworks that rely on randomization, replication, and interspersed a priori controls for statistical comparison. Analyses of such large‐scale, natural experiments are common in the health and...
Comparison of machine learning approaches used to identify the drivers of Bakken oil well productivity
Emil D. Attanasi, Philip A. Freeman, Timothy Coburn
2021, Statistical Analysis and Data Mining (14) 536-555
Geologists and petroleum engineers have struggled to identify the mechanisms that drive productivity in horizontal hydraulically fractured oil wells. The machine learning algorithms of Random Forest (RF), gradient boosting trees (GBT) and extreme gradient boosting (XGBoost) were applied to a dataset containing 7311 horizontal hydraulically fractured...
It’s complicated…environmental DNA as a predictor of trout and char abundance in streams
Adam Sepulveda, Robert Al-Chokhachy, Matthew Laramie, Kyle Crapster, Ladd Knotek, Brian T. Miller, Alexander V. Zale, David S. Pilliod
2021, Canadian Journal of Fisheries and Aquatic Sciences (78) 422-432
The potential to provide inferences about fish abundance from environmental (e)DNA samples has generated great interest. However, the accuracy of these abundance estimates is often low and variable across species and space. A plausible refinement is the use of common aquatic habitat monitoring data to account for attributes that influence...
Retrospective analysis of estrogenic endocrine disruption and land-use influences in the Chesapeake Bay watershed
Vicki S. Blazer, Stephanie E. Gordon, Daniel K. Jones, Luke R. Iwanowicz, Heather L. Walsh, Adam Sperry, Kelly L. Smalling
2021, Chemosphere (266)
The Chesapeake Bay is the largest estuary in the United States and its watershed includes river drainages in six states and the District of Columbia. Sportfishing is of major economic interest, however, the rivers within the watershed provide numerous other ecological, recreational, cultural and...
Latency of waveform data delivery from the Southern California Seismic Network during the 2019 Ridgecrest earthquake sequence and its effect on ShakeAlert
Igor Stubailo, Mark Alvarez, Glenn Biasi, Rayomand Bhadha, Egill Hauksson
2021, Seismological Research Letters (92) 170-186
The occurrence of the 4–6 July 2019 Mw 6.4 and Mw 7.1 Ridgecrest earthquake sequence provided the first full‐scale test of the network and telemetry readiness of the Southern California Seismic Network (SCSN), to support the ShakeAlert earthquake early warning (EEW) system in California. ShakeAlert is...
The 2018 reawakening and eruption dynamics of Steamboat Geyser, the world’s tallest active geyser
Mara Reed, Carolina Munoz-Saez, Sahand Hajimirza, Sin-Mei Wu, Anna Barth, Tarsilo Girona, Majid Rasht-Behesht, M.S Karplus, Shaul Hurwitz, Michael Manga
2021, PNAS (118)
Steamboat Geyser in Yellowstone National Park’s Norris Geyser Basin began a prolific sequence of eruptions in March 2018 after 34 y of sporadic activity. We analyze a wide range of datasets to explore triggering mechanisms for Steamboat’s reactivation and controls on eruption intervals and height. Prior to Steamboat’s renewed activity,...
Generalizing the inversion‐based PSHA source model for an interconnected fault system
Edward H. Field, Kevin R. Milner, Morgan T. Page
2021, Bulletin of the Seismological Society of America (111) 371-390
This article represents a step toward generalizing and simplifying the procedure for constructing an inversion‐based seismic hazard source model for an interconnected fault system, including the specification of adjustable segmentation constraints. A very simple example is used to maximize understandability and to counter the notion that an inversion approach is...
Teleseismic P‐qave coda autocorrelation imaging of crustal and basin structure, Bighorn Mountains Region, Wyoming, U.S.A.
Steven Plescia, Anne Sheehan, Seth S. Haines, Lindsay Worthington, Scott Cook, Justin Ball
2021, Bulletin of the Seismological Society of America (111) 466-475
We demonstrate successful crustal imaging via teleseismic P‐wave coda autocorrelation, using data recorded on a 261 station array of vertical‐component high‐frequency geophones in the area of the Bighorn Mountains, Wyoming, U.S.A. We autocorrelate the P‐wave coda of 30 teleseismic events and use phase‐weighted stacking to...
Mainstems: A logical data model implementing mainstem and drainage basin feature types based on WaterML2 Part 3: HY Features concepts
David L. Blodgett, J. Micheal Johnson, Mark Sondheim, Michael Wieczorek, Nels Frazier
2021, Environmental Modelling and Software (135)
The Mainstems data model implements the catchment and flowpath concepts from WaterML2 Part 3: Surface Hydrology Features (HY_Features) for persistent, cross-scale, identification of hydrologic features. The data model itself provides a focused and lightweight method to describe hydrologic networks with minimum but sufficient information. The design is intended...
From satellites to frogs: Quantifying ecohydrological change, drought mitigation, and population demography in desert meadows
David S. Pilliod, Mark B. Hausner, Rick D. Scherer
2021, Science of the Total Environment (758)
Increasing frequency and severity of droughts have motivated natural resource managers to mitigate harmful ecological and hydrological effects of drought, but drought mitigation is an emerging science and evaluating its effectiveness is difficult. We examined ecohydrological responses of drought...
Feeling the squeeze: Adult run size and habitat availability limit juvenile river herring densities in lakes
Matthew T. Devine, Julianne Rosset, Allison H. Roy, Benjamin I. Gahagan, Michael P. Armstrong, Andrew R. Whiteley, Adrian Jordaan
2021, Transactions of the American Fisheries Society (150) 207-221
Maximum densities of juvenile river herring (Alewife Alosa pseudoharengus and Blueback Herring A. aestivalis) vary among freshwater lakes, likely due to densities of adult spawners. Differences in habitat availability and lake water quality may also contribute to variation in juvenile river herring productivity between populations, yet these relationships have not been tested across...
A lagrangian-to-eulerian metric to identify estuarine pelagic habitats
Paul Stumpner, Jon R. Burau, Alexander L. Forrest
2021, Estuaries and Coasts (44) 1231-1249
Estuaries are among the world’s most productive ecosystems, but recent natural and anthropogenic changes have stressed these ecosystems. Tools to assess estuarine pelagic habitats are important to support and maintain healthy ecosystem function. In this work, we demonstrate that estuarine pelagic habitats can be identified by...
A 450-year record of environmental change from Castle Lake, California (USA), inferred from diatoms and organic geochemistry
Paula Noble, Gary A. McGaughey, Michael R. Rosen, Christopher C. Fuller, Marco A. Aquino-Lopez, Sudeep Chandra
2021, Journal of Paleolimnology (65) 201-217
A 39-cm sediment core from Castle Lake, California (USA) spans the last ~ 450 years and was analyzed for diatoms and organic geochemistry (δ15N, δ13C, and C:N), with the goal of determining sensitivity to natural climate variation and twentieth century anthropogenic effects. Castle Lake is a subalpine, nitrogen-limited lake...
Testing a continuous measure of recreation specialization among birdwatchers
H.W. Harshaw, Nicholas W. Cole, Ashley A. Dayer, Jonathan D. Rutter, David C. Fulton, Andrew H. Raedeke, Rudy Schuster, Jennifer N. Duberstein
2021, Human Dimensions of Wildlife (26) 472-480
Recreation specialization is a framework that can be used to explain the variation among outdoor recreationists’ preferences, attitudes, and behaviors. Recreation specialization has been operationalized using several approaches, including summative indices, cluster analysis, and self-classification categorical measures. Although these approaches measure the multiple dimensions of the framework,...
Perceived constraints and negotiations to trout fishing in Georgia based on angler specialization level
H. J. TenHarmsel, B. B. Boley, Brian J. Irwin, Cecil A. Jennings
2021, North American Journal of Fisheries Management (41) 115-129
Anglers face constraints that influence participation and dropout rates. Some recreational anglers may be able to negotiate constraints by altering the timing or frequency of participation, acquiring new skills, or modifying nonrecreational aspects such as family or work responsibilities. We consider data collected via a mail survey from Georgia-resident trout...
Clothianidin decomposition in Missouri wetland soils
C. J. Beringer, K. W. Goyne, R. N. Lerch, Elisabeth B. Webb, D. Mengel
2021, Journal of Environmental Quality (50) 241-251
Neonicotinoid pesticides can persist in soils for extended time periods; however, they also have a high potential to contaminate ground and surface waters. Studies have reported negative effects associated with neonicotinoids and nontarget taxa, including aquatic invertebrates, pollinating insect species, and insectivorous birds. This study evaluated factors associated with clothianidin...
Stress gradients interact with disturbance to reveal alternative states in salt marsh: Multivariate resilience at the landscape scale
Scott Jones, Camille Stagg, Erik S. Yando, W. Ryan James, Kevin J. Buffington, Mark W. Hester
2021, Journal of Ecology (109) 3211-3223
Stress gradients influence many ecosystem processes and properties, including ecosystem recovery from and resistance to disturbance. While recent analytical approaches have advanced multivariate metrics of ecosystem resilience that allow quantification of conceptual resilience models and identification of thresholds of state change, these approaches are not often translated to landscape...
Probabilistic patterns of inundation and biogeomorphic changes due to sea-level rise along the northeastern U.S. Atlantic coast
Erika E. Lentz, Sara L. Zeigler, E. Robert Thieler, Nathaniel G. Plant
2021, Landscape Ecology (36) 223-241
ContextCoastal landscapes evolve in response to sea-level rise (SLR) through a variety of geologic processes and ecological feedbacks. When the SLR rate surpasses the rate at which these processes build elevation and drive lateral migration, inundation is likely.ObjectivesTo examine the role of land cover diversity and...
Hydrogeochemistry in the Yukon-Tanana Upland region of east-central Alaska: Possible exploration tool for porphyry-style deposits
Karen D. Kelley, Garth E. Graham
2021, Applied Geochemistry (124)
A hydrogeochemical study using high resolution ICP-MS was undertaken at the Taurus and other porphyry Cu-Mo(-Au) occurrences and Ag-Au-Cu (+/- Pb, Zn) occurrences with epithermal-style characteristics in the Yukon-Tanana upland region of eastern Alaska. Surface water samples were collected from 30...
A Bayesian Dirichlet process community occupancy model to estimate community structure and species similarity
Rahel Sollmann, Mitchell J. Eaton, William Link, Paul Mulundo, Samuel Ayebare, Sarah Prinsloo, Andrew J. Plumptre, D.S. Johnson
2021, Ecological Applications (31)
Community occupancy models estimate species‐specific parameters while sharing information across species by treating parameters as sampled from a common distribution. When communities consist of discrete groups, shrinkage of estimates towards the community mean can mask differences among groups. Infinite mixture models using a Dirichlet process (DP) distribution, in which the...
Thinking like a consumer: Linking aquatic basal metabolism and consumer dynamics
Janine Ruegg, Caitlin C Conn, Elizabeth P Anderson, Tom J Battin, Emily S. Bernhardt, Marta Boix Canadell, Sophia M Bonjour, Jacob D. Hosen, Nicholas S Marzolf, Charles B. Yackulic
2021, Limnology and Oceanography Letters (6) 1-17
The increasing availability of high‐frequency freshwater ecosystem metabolism data provides an opportunity to identify links between metabolic regimes, as gross primary production and ecosystem respiration patterns, and consumer energetics with the potential to improve our current understanding of consumer dynamics (e.g., population dynamics, community structure, trophic...
A generic soil velocity model that accounts for near-surface conditions and deeper geologic structure
Nasser A. Marafi, Alex R. Grant, Brett W. Maurer, Gunjan Rateria, Marc O Eberhard, Jeff W Berman
2021, Soil Dynamics and Earthquake Engineering (140)
Near-surface soil conditions can significantly alter the amplitude and frequency content of incoming ground motions – often with profound consequences for the built environment – and are thus important inputs to any ground-motion prediction. Previous soil-velocity models (SVM) have predicted shear-wave...
