Developing a strategy for the national coordinated soil moisture monitoring network
Micheal Cosh, Todd Caldwell, Bruce M. Baker, John D. Bolton, Nathan Edwards, Peter Goble, Heather Hofman, Tyson Ochsner, Steven Quiring, Charles W. Schalk, Marina Skumanich, Mark Svoboda, Molly Woloszyn
2021, Vadose Zone Journal (20)
Soil moisture is a critical land surface variable, affecting a wide variety of climatological, agricultural, and hydrological processes. Determining the current soil moisture status is possible via a variety of methods, including in situ monitoring, remote sensing, and numerical modeling. Although all of these approaches are...
Changes in the abundance and distribution of waterfowl wintering in the Central Valley of California, 1973–2000
Joseph P. Fleskes, Michael L. Casazza, Cory T. Overton, Elliott Matchett, Julie L. Yee
2021, Studies of Western Birds (3) 50-74
The Central Valley of California is one of the most important areas for wintering waterfowl in the world and the focus of extensive conservation efforts to mitigate for historical losses and counter continuing stressors to habitats. To guide conservation, we analyzed trends in the abundance and distribution (spatiotemporal abundance patterns)...
Nearshore fish species richness and species–habitat associations in the St. Clair–Detroit River System
Corbin D. Hilling, Jason L. Fischer, Jason E. Ross, Taaja Tucker, Robin L. DeBruyne, Christine M. Mayer, Edward F. Roseman
2021, Water (12)
Shallow water riparian zones of large rivers provide important habitat for fishes, but anthropogenic influences have reduced the availability and quality of these habitats. In the St. Clair–Detroit River System, a Laurentian Great Lakes connecting channel, losses of riparian habitat contributed to impairment of fish populations and their habitats. We...
Soil reservoir dynamics of ophidiomyces ophidiicola, the causative agent of snake fungal disease
Lewis J. Campbell, Joanna Burger, Robert T. Zappalorti, John F. Bunnell, Megan Winzeler, Daniel R. Taylor, Jeffrey M. Lorch
2021, Journal of Fungi (7)
Wildlife diseases pose an ever-growing threat to global biodiversity. Understanding how wildlife pathogens are distributed in the environment and the ability of pathogens to form environmental reservoirs is critical to understanding and predicting disease dynamics within host populations. Snake fungal disease (SFD) is an emerging conservation threat to North American...
Migration efficiency sustains connectivity across agroecological networks supporting sandhill crane migration
J. Patrick Donnelly, Sammy L. King, Jeff Knetter, James H. Gammonley, Victoria J. Dreitz, Blake A. Grisham, M. Cathy Nowak, Daniel P. Collins
2021, Ecosphere (12)
Preserving avian flyway connectivity has long been challenged by our capacity to meaningfully quantify continental habitat dynamics and bird movements at temporal and spatial scales underlying long-distance migrations. Waterbirds migrating hundreds or thousands of kilometers depend on networks of wetland stopover sites to rest and refuel. Entire populations may rely...
Detailed traveltime tomography and seismic catalog around the 2019 Mw7.1 Ridgecrest, California, earthquake using dense rapid-response seismic data
Malcolm White, Hongjian Fang, Rufus D. Catchings, Mark Goldman, Jamison Haase Steidl, Yehuda Ben-Zion
2021, Geophysical Journal International (227) 204-227
We derive a detailed earthquake catalogue and Vp, Vs and Vp/Vs models for the region around the 2019 Mw 6.4 and Mw7.1 Ridgecrest, California, earthquake sequence using data recorded by rapid-response, densely deployed sensors following the Ridgecrest main shock and the regional network. The new catalogue spans a 4-month period, starting on 1 June 2019, and it includes...
A decision-analytical framework for developing harvest regulations
Michael C. Runge
Kevin L. Pope, Larkin A. Powell, editor(s)
2021, Book chapter, Harvest of fish and wildlife: New paradigms for sustainable management
The development of harvest regulations for fish or wildlife is a complex decision that needs to weigh multiple objectives, consider a set of alternative regulatory options, integrate scientific understanding about the population dynamics of the harvested species as well as the human response to regulations, account for uncertainty, and provide...
Engaging hunters in selecting duck season dates using decision science: Problem framing, objective setting, devising management alternatives
Angela K. Fuller, Joshua C. Stiller, William F. Siemer, Kelly A. Perkins
2021, Book chapter, Harvest of fish and wildlife: New paradigms for sustainable management
Waterfowl hunters have an important economic impact on local, state, and national economies, and are important stakeholders in decisions regarding waterfowl harvest season dates. Individual states are responsible for annually setting duck season dates that conform to the migratory game bird season frameworks as set by the U.S. Fish and...
Using structured decision making to incorporate ecological and social values into harvest decisions: Case studies of white-tailed deer and walleye
Kelly F. Robinson, Angela K. Fuller, Michael Jones
2021, Book chapter, Harvest of fish and wildlife: New paradigms for sustainable management
Harvest decisions for fish and wildlife populations often include conflicting ecological, economic, and social values. Using decision analysis, such as structured decision making and adaptive management, as a framework to aid decision makers in multi-objective decision making for setting harvest regulations can lead to a more transparent and resilient decision....
The future of managing ungulate species: White-tailed deer as a case study
Duane R. Diefenbach, W. Matthew Knox, Christopher S. Rosenberry
2021, Book chapter, Harvest of fish and wildlife: New paradigms for sustainable management
The future challenge to managing ungulate populations to meet objectives is likely to become more difficult as participation in recreational hunting declines and ungulate populations become more abundant. The authors use the white-tailed deer (Odocoileus virginianus) in North America as a case study to illustrate the management challenges facing decision...
System characterization report on the WorldView-3 Imager
Simon J. Cantrell, Jon Christopherson, Cody Anderson, Gregory L. Stensaas, Shankar N. Ramaseri Chandra, Minsu Kim, Seonkyung Park
2021, Open-File Report 2021-1030-I
Executive SummaryThis report addresses system characterization of the Maxar WorldView-3 satellite and is part of a series of system characterization reports produced and delivered by the U.S. Geological Survey Earth Resources Observation and Science Cal/Val Center of Excellence in 2020. These reports present and detail the methodology and procedures for...
System characterization report on the Gaofen-1
Mahesh Shrestha, Aparajithan Sampath, Shankar N. Ramaseri Chandra, Jon Christopherson, Jerad Shaw, Gregory L. Stensaas, Cody Anderson
2021, Open-File Report 2021-1030-B
Executive SummaryThis report addresses system characterization of Gaofen-1 and is part of a series of system characterization reports produced and delivered by the U.S. Geological Survey Earth Resources Observation and Science Cal/Val Center of Excellence in 2020. These reports present the detail methodology and procedures for characterization; present technical and...
System characterization report on the German Aerospace Center (DLR) Earth Sensing Imaging Spectrometer (DESIS)
Mahesh Shrestha, Aparajithan Sampath, Shankar N. Ramaseri Chandra, Jon Christopherson, Jerad Shaw, Cody Anderson
2021, Open-File Report 2021-1030-A
Executive SummaryThis report addresses system characterization of the German Aerospace Center (DLR) Earth Sensing Imaging Spectrometer (DESIS) and is part of a series of system characterization reports produced and delivered by the U.S. Geological Survey Earth Resources Observation and Science Cal/Val Center of Excellence. These reports present the methodology and...
Predictability of invasive Argentine ant distribution across Mediterranean ecoregions of southern California
Jonathan Q. Richmond, Tritia Matsuda, Cheryl S. Brehme, Emily E. Perkins, Robert N. Fisher
2021, Western North American Naturalist (81) 243-256
The invasiveness of nonnative taxa can vary across a landscape due to environmental gradients, suggesting that location-dependent management strategies may be more effective at reducing spread compared to a “one size fits all” approach across the entire introduced range. Using bait stations placed along linear transects within habitat preserves, we...
Harvest as a tool to manage populations of undesirable or overabundant fish and wildlife
Craig P. Paukert, Elisabeth B. Webb, Drew N. Fowler, Corbin D. Hilling
2021, Book chapter, Harvest of fish and wildlife: New paradigms for sustainable management
Harvest is a common management tool for fish and game species and can also be used for overabundant populations when stakeholders want to reduce populations reduced and still provide recreational opportunities. The authors propose a framework to determine if harvest can be used to control populations when overabundance is an...
Recent carbon storage and burial exceed historic rates in the San Juan Bay estuary peri-urban mangrove forests (Puerto Rico, United States)
Cathleen Wigand, Meagan J. Eagle, Benjamin Branoff, Stephen Balogh, Kenneth Miller, Rose M. Martin, Alana Hanson, Autumn Oczkowski, Evelyn Huertas, Joseph Loffredo, Elizabeth Watson
2021, Frontiers in Forests and Global Change (4)
Mangroves sequester significant quantities of organic carbon (C) because of high rates of burial in the soil and storage in biomass. We estimated mangrove forest C storage and accumulation rates in aboveground and belowground components among five sites along an urbanization gradient in the San Juan Bay Estuary, Puerto Rico....
The limitations of external measurements for aging small mammals: The cautionary example of the Lesser Treeshrew (Scandentia: Tupaiidae: Tupaia minor Günther, 1876)
Neal Woodman, Ananth Miller-Murthy, Link E. Olson, Eric J. Sargis
2021, Journal of Mammalogy (102)
Age is a basic demographic characteristic vital to studies of mammalian social organization, population dynamics, and behavior. To eliminate potentially confounding ontogenetic variation, morphological comparisons among populations of mammals typically are limited to mature individuals (i.e., those assumed to have ceased most somatic growth). In our morphometric studies of treeshrews...
Untargeted lipidomics for determining cellular and sub-cellular responses in Zebrafish (Danio rerio) liver cells following exposure to complex mixtures in U.S. streams
Huajun Zhen, Quincy Teng, Jonathan D Mosley, Timothy W. Collette, Yang Yue, Paul M. Bradley, Drew R. Ekman
2021, Environmental Science & Technology (55) 8180-8190
Surface waters often contain a variety of chemical contaminants potentially capable of producing adverse outcomes in both humans and wildlife due to impacts from industrial, urban, and agricultural activity. Here, we report the results of a zebrafish liver (ZFL) cell-based lipidomics approach to assess the potential ecotoxicological effects of complex...
Integrating wildlife habitat models with state-and-transitions models to enhance the management of rangelands for multiple objectives
Jennifer M. Timmer, Crystal Y. Tipton, Retta A. Bruegger, David J. Augustine, Christopher P.K. Dickey, Maria E. Fernandez-Gimenez, Cameron L. Aldridge
2021, Rangeland Ecology and Management (78) 15-25
State-and-transition models (STMs) are tools used in rangeland management to describe linear and nonlinear vegetation dynamics as conceptual models. STMs can be improved by including additional ecosystem services, such as wildlife habitat, so that managers can predict how local populations might respond to state changes and to...
Fire, land cover, and temperature drivers of bat activity in winter
Marcelo H. Jorge, Sara E. Sweeten, Michael C. TRUE, Samuel R. Freeze, Michael J. Cherry, Elina P. Garrison, W. Mark Ford
2021, Fire Ecology (17)
BackgroundUnderstanding the effects of disturbance events, land cover, and weather on wildlife activity is fundamental to wildlife management. Currently, in North America, bats are of high conservation concern due to white-nose syndrome and wind-energy development impact, but the role of fire as a potential additional stressor has received...
NGA-East ground-motion characterization model Part II: Implementation and hazard implications
Robert Youngs, Christine A. Goulet, Yousef Bozorgnia, Nicolas Kuehn, Linda Al Atik, Robert Graves, Gail M. Atkinson
2021, Earthquake Spectra (37) 1283-1330
As a companion article to Goulet et al., we describe implementation of the NGA-East ground motion characterization (GMC) model in probabilistic seismic hazard analysis (PSHA) for sites in the Central and Eastern United States (CEUS). We present extensions to the EPRI/DOE/NRC seismic source characterization (SSC) model for...
A hidden Markov model for estimating age-specific survival when age and size are uncertain
Timothy A. Gowan, Michael D. Tringali, Jeffrey A. Hostetler, Julien Martin, Leslie I. Ward-Geiger, Jennifer M Johnson
2021, Ecology (102)
Estimates of age-specific survival probabilities are needed for age-structured population models and to inform conservation decisions. However, determining the age of individuals in wildlife populations is often problematic. We present a hidden Markov model for estimating age-specific survival from capture–recapture or capture–recapture–recovery data when age is...
Relative risk of groundwater-quality degradation near California (USA) oil fields estimated from 3H, 14C, and 4He
Peter B. McMahon, Matthew K. Landon, Tracy Davis, Michael Wright, Celia Z. Rosecrans, Robert Anders, Michael Land, Justin T. Kulongoski, Andrew G. Hunt
2021, Applied Geochemistry (131)
Relative risks of groundwater-quality degradation near selected California oil fields are estimated by examining spatial and temporal patterns in chemical and isotopic data in the context of groundwater-age categories defined by tritium and carbon-14. In the Coastal basins, western San Joaquin Valley (SJV),...
Quantifying the demographic vulnerabilities of dry woodlands to climate and competition using rangewide monitoring data
Robert K Shriver, Charles Yackulic, David M. Bell, John B. Bradford
2021, Ecology (102)
Climate change is expected to alter the distribution and abundance of tree species, impacting ecosystem structure and function. Yet, anticipating where this will occur is often hampered by a lack of understanding of how demographic rates, most notably recruitment, vary in response to climate and competition...
Deposit classification scheme for the Critical Minerals Mapping Initiative Global Geochemical Database
Albert H. Hofstra, Vladimir Lisitsin, Louise Corriveau, Suzanne Paradis, Jan Peter, Kathleen Lauziere, Christopher Lawley, Michael Gadd, Jean-Luc Pilote, Ian Honsberger, Evgeniy Bastrakov, David Champion, Karol Czarnota, Michael Doublier, David Huston, Oliver Raymond, Simon VanDerWielen, Poul Emsbo, Matthew Granitto, Douglas C. Kreiner
2021, Open-File Report 2021-1049
A challenge for the global economy is to meet the growing demand for commodities used in today’s advanced technologies. Critical minerals are commodities (for example, elements, compounds, minerals) deemed vital to the economic and national security of individual countries that are vulnerable to supply disruption. The national geological agencies of...
