NGWA Groundwater Modeling Advisory Panel Survey on the Use of Uncertainty Analysis in Groundwater Modeling
Steve Luis, Pete Schulmeyer, David Bean, Connor P. Newman, Dan Puddephatt, Rodney A. Sheets, Randall J. Hunt
2020, Report
This white paper provides the results of a survey by members of the NGWA Groundwater Modeling Advisory Panel to assess the use of uncertainty analysis in groundwater modeling.The objective of the survey was to improve understanding of the use of uncertainty analysis in practical groundwater modeling projects subject to real-world...
Bottom trawl assessment of Lake Ontario prey fishes, 2019
Brian Weidel, Brian O’Malley, Michael J. Connerton, Jeremy P. Holden, Christopher Osborne
2020, Report, NYSDEC Lake Ontario Annual Report 2019
Multi-agency, collaborative Lake Ontario bottom trawl surveys provide information for decision making related to Fish Community Objectives including predator-prey balance and understanding prey fish community diversity. In 2019, bottom trawl surveys in April (n = 252 tows) and October (n = 160 tows) sampled main lake and embayments at depths...
Mapping, exploration, and characterization of the California continental margin and associated features from the California-Oregon border to Ensenada, Mexico
Amanda Demopoulos, Nancy G. Prouty, Daniel S. Brothers, Janet Watt, James E. Conrad, Jason Chaytor, Chris Caldow
2020, Conference Paper, Workshop to identify national ocean exploration priorities in the Pacific: White paper submissions
Priority Geographic Area: Both within and outside US Exclusive Economic Zone (EEZ). California continental margin. This area includes and continues south of the geographic area captured in the Watt et al. white paper. Description of Priority Area: The California continental margin, from the narrow shelf to abyssal depths, contains diverse...
Steps to develop early warning systems and future scenarios of wave-driven flooding along coral reef-lined coasts
Gundula Winter, Curt D. Storlazzi, Sean Vitousek, Ap van Dongeren, Robert T. McCall, Ron Hoeke, William Skirving, John Marra, Johan Reyns, Jerome Aucan, Matthew J. Widlansky, Janet Becker, Chris Perry, Gerd Masselink, Ryan Lowe, Murray Ford, Andrew Pomeroy, Fernando J. Mendez, Ana C. Rueda, Moritz Wandres
2020, Frontiers in Marine Science (7)
Tropical coral reef-lined coasts are exposed to storm wave-driven flooding. In the future, flood events during storms are expected to occur more frequently and to be more severe due to sea-level rise, changes in wind and weather patterns, and the deterioration of coral reefs. Hence, disaster managers and coastal planners...
Determinants and consequences of dispersal in vertebrates with complex life cycles: a review of pond-breeding amphibians
H Cayuela, V Valenzuela-Sanchez, L Teulier, I Martinez-Solano, J Lena, J Merila, Erin L. Muths, R Shine, L Quay, M Denoel, J Clobert, B. Schmidt
2020, The Quarterly Review of Biology (95)
Dispersal is a central process in ecology and evolution. It strongly influences the dynamics of spatially structured populations, by affecting population growth rate and local colonization-extinction processes. Dispersal can also influence evolutionary processes because it determines rates and patterns of gene flow in spatially structured populations and is closely linked...
Population and harvest dynamics of midcontinent sandhill cranes
Aaron T. Pearse, Glen A. Sargeant, Gary Krapu, David A. Brandt
2020, Journal of Wildlife Management (84) 902-910
Sandhill cranes (Antigone canadensis) inhabiting the midcontinent of North America have been hunted since the 1960s under management goals of maintaining abundance, retaining geographic distribution, and maximizing sustainable harvest. Some biologists have raised concerns regarding harvest sustainability because sandhill cranes have lower reproductive rates than other game birds. We summarized...
Herring Disease Program II 19120111-E - 2019 Annual Report
Paul Hershberger, Maureen K. Purcell
2020, Report
We will investigate fish health factors that may be contributing to the failed recovery of Pacific herring populations in Prince William Sound. Field samples will provide infection and disease prevalence data from Prince William Sound and Sitka Sound that will inform the ASA model, serological data that will indicate the...
Regionally Optimized Background Earthquake Rates from ETAS (ROBERE) for probabilistic seismic hazard assessment
Andrea L. Llenos, Andrew J. Michael
2020, Bulletin of the Seismological Society of America (110) 1172-1190
We use an epidemic‐type aftershock sequence (ETAS) based approach to develop a regionally optimized background earthquake rates from ETAS (ROBERE) method for probabilistic seismic hazard assessment. ROBERE fits parameters to the full seismicity catalog for a region with maximum‐likelihood estimation, including uncertainty. It then averages the earthquake rates over a...
Nexus between wildfire, climate change and population growth in California
Jon Keeley, Alexandra D. Syphard
2020, Fremontia (47) 4-13
Since the year 2000 California has experienced a remarkable upsurge in wildfires. Over five million hectares have burned in the last 20 years, which is double the area burned in the previous two decades. Much of this increase has been driven by large fires of more than 50,000 hectares that...
The ODD protocol for describing agent-based and other simulation models: A second update to improve clarity, replication, and structural realism
Volker Grimm, Steven F. Railsback, Christian Vincenot, Uta Berger, Cara Gallagher, Don DeAngelis, Bruce Edmonds, Jiaqi Ge, Jarl Giske, Jurgen Groeneveld, Alice S.A. Johnston, Alexander Miles, Jacob Nabe-Nielson, J. Gareth Polhill, Viktoriia Radchuk, Marie-Sophie Rohwader, Richard A. Stillman, Jan Theile, Daniel Ayllon
2020, Journal of Artificial Societies and Social Simulation (23)
The Overview, Design concepts and Details (ODD) protocol for describing Individual- and Agent-Based Models (ABMs) is now widely accepted and used to document such models in journal articles. As a standardized document for providing a consistent, logical and readable account of the structure and dynamics of ABMs, some research groups...
Final report: Southwestern Willow Flycatcher (Empidonax traillii extimus) and Western Yellow-billed Cuckoo (Coccyzus americanus occidentalis) surveys and habitat availability modeling on the Santa Clara River, California, 26 March 2020
Linnea S. Hall, Bruce K. Orr, James Hatten, Adam Lambert, Tom L. Dudley
2020, Report
Our project aimed to conduct population surveys for Southwestern Willow Flycatcher (Empidonax trailii extimus; SWFL) and Yellow-billed Cuckoo (Coccyzus americanus; YBCU) in 2018 and 2019, apply existing habitat models to illustrate and predict past, current, and future habitat suitabilities for these two species, and update and standardize classification and mapping...
Groundwater availability in the Truxton basin, northwestern Arizona
Jon P. Mason, Jacob E. Knight, Lyndsay B. Ball, Jeffrey R. Kennedy, Jamie P. Macy, Donald J. Bills
Jon P. Mason, editor(s)
2020, Scientific Investigations Report 2020-5017-A
This is a summary chapter of a multichapter volume that includes a brief description of the study area and descriptions of the hydrogeologic framework, numerical groundwater-flow model, and estimates of simulated changes to groundwater levels of the Truxton aquifer....
Major hydrostratigraphic contacts of the Truxton basin and Hualapai Plateau, northwestern Arizona, developed from airborne electromagnetic data
Lyndsay B. Ball
Jon P. Mason, editor(s)
2020, Scientific Investigations Report 2020-5017-D
The area surrounding the Grand Canyon has spectacular outcrop exposure in the modern canyon walls, leading to stratigraphic contact delineations that are well constrained near canyons yet poorly constrained where the terrain remains undissected and relatively unexplored by boreholes. An airborne electromagnetic and magnetic survey of the western Hualapai Indian...
Simulation of groundwater-level changes from projected groundwater withdrawals in the Truxton basin, northwestern Arizona
Jacob E. Knight
Jon P. Mason, editor(s)
2020, Scientific Investigations Report 2020-5017-E
A three-dimensional, numerical groundwater flow model of the Hualapai Plateau and Truxton basin was developed to assist water-resource managers in understanding the potential effects of projected groundwater withdrawals on groundwater levels and storage in the basin. The Truxton Basin Hydrologic Model (TBHM) is a transient model that simulates the hydrologic...
Hydrogeologic characterization of the Hualapai Plateau on the western Hualapai Indian Reservation, northwestern Arizona
Jon P. Mason, Jamie P. Macy, Donald J. Bills, Bruce Gungle, Casey J.R. Jones
2020, Scientific Investigations Report 2020-5025
This study was developed to assess if groundwater from the western Hualapai Plateau could be used to supply developments in the Grand Canyon West area of the Hualapai Indian Reservation and to collect hydrogeologic data for future use in a numerical groundwater model for the reservation. Ground-based geophysical surveys; existing...
Transmitter effects on growth and survival of Forster’s tern chicks
Mark P. Herzog, Joshua T. Ackerman, C. Alex Hartman, Sarah H. Peterson
2020, Journal of Wildlife Management (84) 891-901
Radio‐telemetry is a commonly used scientific technique that allows researchers to collect detailed movement, habitat use, and survival data of animals; however, evidence indicates that using telemetry can affect behavior and survival. Using multiple breeding colonies and years, we investigated the effects of attached radio‐transmitters on growth and survival of...
A pan-African high-resolution drought index dataset
Jian Peng, Simon Dawdson, Firaya Hirpa, Ellen Dyer, Sergio Vicento-Serrano, Chris Funk
2020, Earth System Science Data (12) 753-769
Droughts in Africa cause severe problems, such as crop failure, food shortages, famine, epidemics and even mass migration. To minimize the effects of drought on water and food security on Africa, a high-resolution drought dataset is essential to establish robust drought hazard probabilities and to assess drought vulnerability considering a...
Climate-induced expansions of invasive species in the Pacific Northwest, North America: A synthesis of observations and projections
Jennifer Gervais, Ryan P. Kovach, Adam J. Sepulveda, Robert K. Al-Chokhachy, J. Joseph Giersch, Clint C. Muhlfeld
2020, Biological Invasions (22) 2163-2183
Climate change may facilitate the expansion of non-native invasive species (NIS) in aquatic and terrestrial systems. However, empirical evidence remains scarce and poorly synthesized at scales necessary for effective management. We conducted a literature synthesis to assess the state of research on the observed and predicted effects of climate change...
Seasonal habitat use indicates that depth may mediate the potential for invasive round goby impacts in inland lakes
Kara J. Andres, Suresh Sethi, Elizabeth Duskey, Jesse M. Lepak, Aaron N. Rice, Bobbi J. Estabrook, Kimberly B. Fitzpatrick, Ellen George, Benjamin Marcy-Quay, Matthew R. Paufve, Kelly Perkins, Anne E. Scofield
2020, Freshwater Biology (65) 1337-1347
The round goby (Neogobius melanostomus) is among the fastest-spreading introduced aquatic species in North America and is radiating inland from the Great Lakes into freshwater ecosystems across the landscape. Predicting and managing the impacts of round gobies requires information on the factors influencing their distribution in habitats along the...
Probabilistic seismic hazard analysis at regional and national scale: State of the art and future challenges
M. C. Gerstenberger, W. Marzocchi, T. J. Allen, M. Pagani, Janice Adams, L. Danciu, Edward H. Field, H. Fujiwara, Nico Luco, K-F Ma, C. Meletti, Mark D. Petersen
2020, Reviews of Geophysics (58)
Seismic hazard modelling is a multi-disciplinary science that aims to forecast earthquake occurrence and its resultant ground shaking. Such models consist of a probabilistic framework that quantifies uncertainty across a complex system; typically, this includes at least two model components developed from Earth science: seismic-source and ground-motion models. Although there...
Operational global actual evapotranspiration: Development, evaluation, and dissemination
Gabriel Senay, Stefanie Kagone, Naga M. Velpuri
2020, Article
Satellite-based actual evapotranspiration (ETa) is becoming increasingly reliable and available for various water management and agricultural applications from water budget studies to crop performance monitoring. The Operational Simplified Surface Energy Balance (SSEBop) model is currently used by the US Geological Survey (USGS) Famine Early Warning System Network (FEWS NET) to...
Movement-assisted localization from acoustic telemetry data
Nathan J. Hostetter, J. Andrew Royle
2020, Movement Ecology (8)
Acoustic telemetry technologies are being increasingly deployed to study a variety of aquatic taxa including fishes, reptiles, and marine mammals. Large cooperative telemetry networks produce vast quantities of data useful in the study of movement, resource selection and species distribution. Efficient use of acoustic telemetry data requires estimation of acoustic...
High-throughput sequencing reveals distinct regional genetic structure among remaining populations of an endangered salt marsh plant in California
Elizabeth R. Milano, Margaret R Mulligan, Jon P. Rebman, Amy G. Vandergast
2020, Conservation Genetics (21) 547-559
Conservation of rare species requires careful consideration to both preserve locally adapted traits and maintain genetic diversity, as species’ ranges fluctuate in response to a changing climate and habitat loss. Salt marsh systems in California have been highly modified and many salt marsh obligate species have undergone range reductions and...
Climatically driven displacement on the Eglington fault, Las Vegas, Nevada
Kathleen B. Springer, Jeffrey S. Pigati
2020, Geology (48) 574-578
The Eglington fault is one of several intrabasinal faults in the Las Vegas Valley, Nevada and is the only one recognized as a source for significant earthquakes. Its broad warp displaces late Pleistocene paleo-spring deposits of the Las Vegas Formation, which record hydrologic fluctuations that occurred in response to millennial...
Framework for a long-term strategic plan for the Capital Area Groundwater Conservation Commission
Michael C. Runge, Ellen A Bean, Adrian McInnis, Ryan Clark, Alyssa Dausman
2020, Report
The Capital Area Groundwater Conservation Commission oversees the use of groundwater in six parishes in Louisiana. In carrying out its statutory responsibilities and authorities, the Commission recognizes the complexity of its decisions: the long-term objectives it is seeking are multifaceted; the actions it can choose from are numerous and interdependent;...
