Discriminating types of volcanic electrical activity: Toward an eruption detection algorithm
Sonja A. Behnke, Harald E. Edens, James Theiler, D.J. Swanson, S. Senay, Alexa R. Van Eaton, Masato Iguchi, D. Miki
2022, Geophysical Research Letters (49)
We present a method for classification of the two distinct types of electrical activity that occur during an explosive volcanic eruption: vent discharges and lightning. Vent discharges occur at the onset of an explosion and create a distinctive radio frequency signature called continual radio frequency. Seconds to minutes after the...
Are we falling short on restoring oysters at a regional scale?
Megan K. La Peyre, Danielle Aguilar Marshall, Sarah Catherine Leblanc Buie, Ann Hijuelos, Gregory Steyer
2022, Environmental Management (70) 581-592
Across coastal areas of the northern Gulf of Mexico, the Deepwater Horizon oil spill resulted in significant ecological injury, and over 8 billion USD directed to restoration activities. Oyster restoration projects were implemented with regional goals of restoring oyster abundance, spawning stock, and population resilience. Measuring regional or large-scale ecosystem restoration outcomes...
Morbidity and mortality of Hawaiin geese (Branta sandvicensis) and Laysan albatross (Phoebastria immutabilis) associated with reticuloendotheliosis virus
Thierry M. Work, Renee Breeden, Julie Dagenais, Robert Rameyer, Holly Sellers, S. Ip, James W. Casey
2022, Journal of Wildlife Diseases (58) 756-768
Only one virus, Avipox, has been documented previously in wild birds in Hawaii. Using immunohistochemistry and PCR, we found that two native threatened Hawaiian Geese (Branta sandvicensis), one with multicentric histiocytoma and the other with toxoplasmosis, and one Laysan Albatross (Phoebastria immutabilis) with avian...
Evaluating hydrologic region assignment techniques for ungaged basins in Alaska, USA
Theodore B. Barnhart, William H. Farmer, John C. Hammond, Graham A. Sexstone, Janet H. Curran, Joshua C. Koch, Jessica M. Driscoll
2022, River Research and Applications (38) 1569-1584
Building continental-scale hydrologic models in data-sparse regions requires an understanding of spatial variation in hydrologic processes. Extending these models to ungaged locations requires techniques to group ungaged locations with gaged ones to make process importance and model parameter transfer decisions to ungaged locations. This analysis (1) tested...
Evidence gaps and diversity among potential win–win solutions for conservation and human infectious disease control
Skylar R. Hopkins, Kevin D. Lafferty, Chelsea L. Wood, Sarah H Olson, Julia C Buck, Giulio A. De Leo, Kathryn Fiorella, Johanna Fornberg, Andres Garchitorena, Isabel J. Jones, Armand Kuris, Laura H Kwong, Christopher LeBoa, Ariel Elizabeth Leon, Andrea Lund, Andrew J MacDonald, Daniel Metz, Nicole Nova, Alison J. Peel, Justin V. Remais, Tara E. Stewart Merrill, Maya Wilson, Matthew Bonds, Andrew Dobson, David Lopez-Carr, Meghan Howard, Lisa Mandle, Susanne H. Sokolow
2022, The Lancet Planetary Health (6) e694-e705
As sustainable development practitioners have worked to “ensure healthy lives and promote well-being for all” and “conserve life on land and below water”, what progress has been made with win–win interventions that reduce human infectious disease burdens while advancing conservation goals? Using...
The Shallow Magmatic Plumbing System of the Deccan Traps, Evidence from Plagioclase Megacrysts and Their Host Lavas
A. Marzoli, Paul R. Renne, R Andreasen, R Spiess, M Chiaradia, Dawn Catherine Sweeney Ruth, A.J. Tholt, K Pande, Fabio J. V. Costa
2022, Journal of Petrology (63)
We investigate the shallow plumbing system of the Deccan Traps Large Igneous Province using rock and mineral data from Giant Plagioclase Basalt (GPB) lava flows from around the entire province, but with a focus on the Saurashtra Peninsula, the Malwa Plateau, and the base and top of the Western...
Juvenile salmon habitat use drives variation in growth and highlights vulnerability to river fragmentation
Suresh Sethi, Michael P. Carey, Jonathon Gerken, Bradley P. Harris, Nathan Wolf, Curry Cunningham, Felipe Restrepo, Josh Ashline
2022, Ecosphere (13)
Widespread stream network fragmentation from dams and culverts has altered habitat connectivity in river ecosystems and presents an acute threat to migratory fish. To support watershed management for an iconic migratory fish group, we assessed juvenile salmon growth outcomes across habitat use strategies and characterized how these life histories may...
Longitudinal water-temperature profiles in Mill Creek, Mason County, Washington
Andrew S. Gendaszek, Richard W. Sheibley, Erica Marbet, Joe Puhn, Catherine Seguin
2022, Scientific Investigations Report 2022-5063
In streams supporting Pacific salmon (Oncorhynchus spp.) within the southern Puget Lowland, high water temperatures during late summer are a primary water-quality concern. The metabolic rates of fish and other ectothermic (in other words, cold-blooded) species are regulated by water temperature; salmon and other cold-water fish have specific thermal...
Element concentrations and grain size of sediment from the Similkameen River above Enloe Dam (Enloe Reservoir) near Oroville, Washington, 2019
Stephen E. Cox, Christopher A. Curran, Andrew R. Spanjer, Chad C. Opatz, Renee K. Takesue, J. Lynn Bell
2022, Scientific Investigations Report 2022-5073
In 2019, the U.S. Geological Survey conducted a reconnaissance survey of concentrations of 41 trace elements present in bed sediment in the reservoir on the Similkameen River upstream from Enloe Dam, near Oroville, Washington. The Similkameen River drains a watershed containing highly mineralized geologic deposits with current (2019) and...
Documenting the multiple facets of a subsiding landscape from coastal cities and wetlands to the continental shelf
James G. Flocks, Eileen McGraw, John Barras, Julie Bernier, Mike Bradley, Devin L. Galloway, James Landmeyer, W. Scott McBride, Christopher Smith, Kathryn Smith, Christopher Swarzenski, Lauren Toth
2022, Open-File Report 2022-1064
Land subsidence is a settling, sinking, or collapse of the land surface. In the southeastern United States, subsidence is frequently observed as sinkhole collapse in karst environments, wetland degradation and loss in coastal and other low-lying areas, and inundation of coastal urban communities. Human activities such as fluid extraction, mining,...
Management of diseases in free-ranging wildlife populations
Mark L. Drew, Jonathan M. Sleeman
Eric Miller, Nadine Lamberski, Paul Calle, editor(s)
2022, Book chapter, Fowler's zoo and wild animal medicine current therapy, volume 10
Diseases are increasingly threatening the conservation of wildlife species. Spillover of pathogens into humans and domestic animals may negatively impact public health and the economy, requiring increased proactive management actions. The North American Wildlife Management Model provides the philosophical basis for managing wildlife and underpins all management options....
Predation thresholds for reintroduction of native avifauna following suppression of invasive brown treesnakes on Guam
Robert McElderry, Eben H. Paxton, Andre Van Nguyen, Shane R. Siers
2022, Ecological Applications (32)
The brown treesnake (BTS) (Boiga irregularis) invasion on Guåhan (in English, Guam) led to the extirpation of nearly all native forest birds. In recent years, methods have been developed to reduce BTS abundance on a landscape scale. To help assess the prospects for the successful reintroduction of native birds to...
Reproducibility and variability of earthquake subsidence estimates from saltmarshes of a Cascadia estuary
Jason Scott Padgett, Simon E. Engelhart, Harvey M. Kelsey, Robert C. Witter, Niamh Cahill
2022, Journal of Quaternary Science (37) 1294-1312
We examine fossil foraminiferal assemblages from 20 sediment cores to assess sudden relative sea-level (RSL) changes across three mud-over-peat contacts at three salt marshes in northern Humboldt Bay, California (~44.8°N, -124.2°W). We use a validated foraminiferal-based Bayesian transfer function to evaluate the variability of subsidence stratigraphy at a range of...
Hydrological and lock operation conditions associated with paddlefish and bigheaded carp dam passage on a large and small scale in the Upper Mississippi River (Pools 14–18)
Dominique D. Turney, Andrea K. Fritts, Brent C. Knights, Jonathan M. Vallazza, Douglas Appel, James T. Lamar
2022, PeerJ (10)
Movement and dispersal of migratory fish species is an important life-history characteristics that can be impeded by navigation dams. Although habitat fragmentation may be detrimental to native fish species, it might act as an effective and economical barrier for controlling the spread of invasive species in riverine systems. Various technologies...
Sclerochronological records of environmental variability and bivalve growth in the Pacific Arctic
David J. Reynolds, Vanessa R. von Biela, Kenneth H. Dunton, David C. Douglas, Bryan A. Black
2022, Progress in Oceanography (206)
The Pacific Arctic region has experienced, and is projected to continue experiencing, rapid climate change. Large uncertainties exist in our understanding of the impact these physical changes have on the region’s ecology. This is, in part, due to the lack of long-term...
The 2018 eruption of Mount Veniaminof, Alaska
Christopher F. Waythomas, Hannah R. Dietterich, Gabrielle Tepp, Taryn M. Lopez, Matthew W. Loewen
2022, Scientific Investigations Report 2022-5075
The 2018 eruption of Mount Veniaminof occurred from September 3–4 to December 27, lasting about 114 days. This report summarizes the types of volcanic unrest that accompanied the eruption and provides a chronology of events and observations. Information about the 2018 eruption was derived from geophysical instrumentation on or near...
Physics-guided graph meta learning for predicting water temperature and streamflow in stream networks
Shengyu Chen, Jacob Aaron Zwart, Xiaowei Jia
2022, Conference Paper, Proceedings of the 28th ACM SIGKDD conference on knowledge discovery and data mining
This paper proposes a graph-based meta learning approach to separately predict water quantity and quality variables for river segments in stream networks. Given the heterogeneous water dynamic patterns in large-scale basins, we introduce an additional meta-learning condition based on physical characteristics of stream segments, which allows learning different sets of...
Floodplains and climate change
Annika Keeley, Shruti Khanna, Nicole Kwan, Bryan G. Matthias, Catarina Pien, Marissa L. Wulff
Samuel M. Bashevkin, Larry R. Brown, Eva Bush, Gonzalo Castillo, Denise Colombano, Rosemary Hartman, Bruce Herbold, Shruti Khanna, Annika Keeley, Nicole Kwan, Peggy W. Lehman, Brian Mahardja, Timothy D. Malinich, Ryan McKenzie, Bryan G. Matthias, Catarina Pien, Marissa L. Wulff, editor(s)
2022, IEP Technical Report 99-4
Floodplains are landscape features that are periodically inundated by water from adjacent rivers (Opperman et al. 2010). Ecologically, functional floodplains are characterized by three primary elements: connectivity, flow regime, and spatial scale. Water quantity flowing over floodplains can vary greatly. Based on a flood’s effects on the floodplain, three flood...
Chapter 1: General conceptual model for climate change in the Upper San Francisco Estuary
Eva Bush, Bruce Herbold, Larry R. Brown
Samuel M. Bashevkin, Larry R. Brown, Eva Bush, Gonzalo Castillo, Denise Colombano, Rosemary Hartman, Bruce Herbold, Shruti Khanna, Annika Keeley, Nicole Kwan, Peggy W. Lehman, Brian Mahardja, Bryan G. Matthias, Catarina Pien, Marissa L. Wulff, Timothy D. Malinich, Ryan McKenzie, editor(s)
2022, IEP Technical Report 99-1
This report is a collaboration by many state and federal agencies working in the Upper San Francisco Estuary to analyze the potential impacts of climate change to different ecosystems found here. Management stategies for ecological values in the face of climate change require reliable and focused information. In this technical...
Examining industry vulnerability: A focus on mineral commodities used in the automotive and electronics industries
Ross Manley, Elisa Alonso, Nedal T. Nassar
2022, Resources Policy (78)
Automotive manufacturing is material-intensive and dependent on a broad range of mineral commodities. Moreover, the automotive manufacturing industries are reliant on complex and sometimes opaque multi-tiered global supply chains. Among the many industries on which automotive supply chains depend are the electronics and semiconductor industries, which are themselves material-intensive and reliant on...
Influence of surface- and ground-water hydrology on riparian tree growth and mortality in the Limitrophe segment of the Colorado River
Patrick B. Shafroth
2022, Report, Minute 323, first biennial report 2018, of monitoring of environmental flows in the Limitrophe and delta of the Colorado River
Branch sections and cores of cottonwood and willow trees were collected from two sites in the Limitrophe. Tree-ring analyses may reveal the relationships among tree growth, streamflow and groundwater....
Watershed processes as amplifiers of climate change and the impact on the future of fine-sediment delivery in the Humboldt Bay-Eel River region, California
Jennifer Curtis
2022, Conference Paper, Friends of the Pleistocene. Pacific cell 2022. Triangle of doom V2.0 guidebook
No abstract available....
Vegetation monitoring
Karen Schlatter, Martha Gomez-Sapiens, Helen Salazar, Alejandra Calvo-Fonseca, Patrick B. Shafroth, Eduardo Gonzalez
2022, Report, Minute 323, first biennial report 2018, of monitoring of environmental flows in the Limitrophe and delta of the Colorado River
Sonoran Institute, Pronatura Noroeste, and University of Arizona conducted vegetation monitoring in riparian restoration sites and control sites along the Colorado River corridor in Mexico during the fall (end of the growing season) of 2018. The overall goal of the vegetation monitoring program was to quantify impacts of restoration actions...
Living with wildfire in Grand County, Colorado: 2021 data report
Hannah Brenkert-Smith, Abby Elizabeth McConnell, Schelly K. Olson, Adam C. Gosey, James Meldrum, Patricia A. Champ, Jamie Gomez, Christopher M. Barth, Colleen Donovan, Carolyn Wagner, Julia Goolsby
2022, Research Note RMRS-RN-94
Wildfire affects hundreds of wildland-urban interface communities each year, and yet most communities lack data reflecting the conditions before an event. This study was conducted before the devastating 2020 East Troublesome Fire1, which spread across 193,812 acres and resulted in two lives lost and 366 homes and 214 other structures...
Crowd-sourced SfM: Best practices for high resolution monitoring of coastal cliffs and bluffs
Phillipe Alan Wernette, Ian M. Miller, Andrew C. Ritchie, Jonathan A. Warrick
2022, Continental Shelf Research (245)
Structure from motion (SfM) photogrammetry is an increasingly common technique for measuring landscape change over time by deriving 3D point clouds and surface models from overlapping photographs. Traditional change detection approaches require photos that are geotagged with a differential GPS (DGPS) location, which requires expensive equipment that can limit the ability of communities and...
