Change in climatically suitable breeding distributions reduces hybridization potential between Vermivora warblers
Jessica N. Hightower, Dolly L. Crawford, Wayne E. Thogmartin, Kyle R. Aldinger, Sara Barker Swarthout, David A. Buehler, John Confer, Christian Friis, Jeff Larkin, James D. Lowe, Martin Piorkowski, Ronald W. Rohrbaugh, Kenneth V. Rosenberg, Curtis G. Smalling, Petra B. Wood, Rachel Vallender, Amber M. Roth
2023, Diversity and Distributions (29) 254-271
AimClimate change is affecting the distribution of species and subsequent biotic interactions, including hybridization potential. The imperiled Golden-winged Warbler (GWWA) competes and hybridizes with the Blue-winged Warbler (BWWA), which may threaten the persistence of GWWA due to introgression. We examined how climate change is likely to alter...
Toward consistent change detection across irregular remote sensing time series observations
Heather J. Tollerud, Zhe Zhu, Kelcy Smith, Danika F. Wellington, Reza Hussain, Donna Viola
2023, Remote Sensing of Environment (285)
The use of remote sensing in time series analysis enables wall-to-wall monitoring of the land surface and is critical for assessing and understanding land cover and land use change and for understanding the Earth system as a whole. However, variability in remote...
Where forest may not return in the western United States
James Wickham, Anne Neale, Kurt H. Riitters, Maliha Nash, Jon Dewitz, Suming Jin, Megan van Fossen, D Rosenbaum
2023, Ecological Indicators (146)
Droughts that are hotter, more frequent, and last longer; pest outbreaks that are more extensive and more common; and fires that are more frequent, more extensive, and perhaps more severe have raised concern that forests in the western United States may not...
Does hatchery rearing of lake trout affect their reproductive behavior in the wild?
Thomas Binder, Christopher M. Holbrook, Charles R. Bronte, Ji He, Charles Kreuger
2023, Journal of Great Lakes Research (49) 288-302
Stocking of hatchery-reared fishes has been used with variable success as a management action to promote the recovery of populations and species. The practice has been controversial for several reasons, including uncertainty about whether the hatchery rearing experience may affect reproduction...
Timing of rhyolite intrusion and Carlin-type gold mineralization at the Cortez Hills Carlin-type deposit, Nevada, USA
Christopher D. Henry, David A. John, Robert W. Leonardson, William T McIntosh, Matt T. Heizler, Joseph P. Colgan, Kathryn E. Watts
2023, Economic Geology (118) 57-91
Carlin-type gold deposits (CTDs) of Nevada are the largest producers of gold in the United States, a leader in world gold production. Although much has been resolved about the characteristics and origin of CTDs in Nevada, major questions remain, especially about (1) the...
Agricultural conservation practices could help offset climate change impacts on cyanobacterial harmful algal blooms in Lake Erie
Michael E. Fraker, Noel R Aloysius, Jay F. Martin, S. Conor Keitzer, David A Dippold, Haw Yen, Jeffrey G. Arnold, Prasad Daggupati, Mari-Vaughn Virginia Johnson, Dale M. Robertson, Scott P. Sowa, Michael J. White, Stuart A. Ludsin
2023, Journal of Great Lakes Research (49) 209-219
Harmful algal blooms (HABs) are a recurring problem in many temperate large lake and coastal marine ecosystems, caused mainly by anthropogenic eutrophication. Implementation of agricultural conservation practices (ACPs) offers a means to reduce non-point source nutrient runoff and mitigate HABs. However,...
Comparison of surrogate models to estimate pesticide concentrations at six U.S. Geological Survey National Water Quality Network sites during water years 2013–18
S. Alex Covert, Aubrey R. Bunch, Charles G. Crawford, Gretchen P. Oelsner
2023, Scientific Investigations Report 2022-5109
During water years 2013–18, the U.S. Geological Survey National Water-Quality Assessment Project sampled the National Water Quality Network for Rivers and Streams year-round and reported on 221 pesticides at 72 sites across the United States. Pesticides are difficult to measure, their concentrations often represent discrete snapshots in time, and capturing...
Proceedings of the Fiscal Year 2022 Annual Reporting Meeting to the Glen Canyon Dam Adaptive Management Program
David J. Topping, Paul E. Grams, Emily C. Palmquist, Joel B. Sankey, Helen C. Fairley, Bridget R. Deemer, Charles B. Yackulic, Theodore Kennedy, Anya Metcalfe, Maria C. Dzul, David Ward, Mariah Aurelia Giardina, Lucas Bair, Thomas M. Gushue, Caitlin M. Andrews, Ronald E. Griffiths, David J. Dean, Keith Kohl, Michael J Moran, Nicholas Voichick, Thomas A. Sabol, Laura A. Tennant, Kimberly Dibble, Michael C. Runge
Meredith A. Hartwell, Scott Vanderkooi, editor(s)
2023, Conference Paper
(Hartwell) This report is prepared primarily to account for work conducted and products delivered in FY 2022 by GCMRC and to inform the Technical Work Group of science conducted by GCMRC and its cooperators in support of the Glen Canyon Dam Adaptive Management Program (GCDAMP). It includes a summary of accomplishments,...
Joint spatiotemporal models to predict seabird densities at sea
Mayumi L. Arimitsu, John F. Piatt, James Thorson, Kathy Kuletz, Gary Drew, Sarah K. Schoen, Dan Cushing, Caitlin Kroeger, William Sydeman
2023, Frontiers in Marine Science (10)
Introduction: Seabirds are abundant, conspicuous members of marine ecosystems worldwide. Synthesis of distribution data compiled over time is required to address regional management issues and understand ecosystem change. Major challenges when estimating seabird densities at sea arise from variability in dispersion of the birds, sampling effort over time and space, and...
Can hydrological models benefit from using global soil moisture, evapotranspiration, and runoff products as calibration targets?
Yiwen Mei, Juliane Mai, Hong Xuan Do, Andrew Gronewold, Howard W. Reeves, Sandra M. Eberts, Richard G. Niswonger, R. Steve Regan, Randall J. Hunt
2023, Water Resources Research (59)
Hydrological models are usually calibrated to in-situ streamflow observations with reasonably long and uninterrupted records. This is challenging for poorly gage or ungaged basins where such information is not available. Even for gaged basins, the single-objective calibration to gaged streamflow cannot guarantee reliable forecasts because, as has...
Linear regression model documentation for computing water-quality constituent concentrations or densities using continuous real-time water-quality data for the Kansas River above Topeka Weir at Topeka, Kansas, November 2018 through June 2021
Thomas J. Williams
2023, Scientific Investigations Report 2022-5130
The Kansas River and its associated alluvial aquifer provide drinking water to more than 950,000 people in northeastern Kansas. Water suppliers that rely on the Kansas River as a water-supply source use physical and chemical processes to treat and remove contaminants before public distribution. An early-notification system of changing water-quality...
Colorado River Basin Actionable and Strategic Integrated Science and Technology (ASIST)
Katharine G. Dahm, Daniel K. Jones, Patrick J. Anderson, Meghan C. Dick, Todd Hawbaker, Robert Horton
2023, Fact Sheet 2022-3016
IntroductionThe U.S. Geological Survey (USGS) is initiating a study approach focused on building cross-disciplinary connections to weave together the scientific knowledge related to drought conditions and effects in the Colorado River Basin. The basin is experiencing the worst drought in recorded history, posing unprecedented new challenges in the basin and...
Colorado River Basin Actionable and Strategic Integrated Science and Technology Project—Science strategy
Katharine G. Dahm, Todd Hawbaker, Rebecca J. Frus, Adrian P. Monroe, John B. Bradford, William J. Andrews, Alicia A. Torregrosa, Eric D. Anderson, David J. Dean, Sharon L. Qi
2023, Circular 1502
The U.S. Geological Survey (USGS) conducts a wide variety of science that improves understanding of droughts and their effects on ecosystems and society. This work includes data collection and monitoring of aquatic and terrestrial systems; assessment and analysis of patterns, trends, drivers, and impacts of drought; development and application of...
Hydrologic change in the St. Louis River Basin from iron mining on the Mesabi Iron Range, northeastern Minnesota
Timothy K. Cowdery, Anna C. Baker, Megan J. Haserodt, Daniel T. Feinstein, Randall J. Hunt
2023, Scientific Investigations Report 2022-5124
This study compares the results of two regional steady-state U.S. Geological Survey Modular Three-Dimensional Finite-Difference Ground-Water Flow (MODFLOW) models constructed to quantify the hydrologic changes in the St. Louis River Basin from iron mining on the Mesabi Iron Range in northeastern Minnesota. The U.S. Geological Survey collaborated in this study...
Changes in suspended-sediment yields under divergent land-cover disturbance histories: A comparison of two large watersheds, Olympic Mountains, USA
Kristin L. Jaeger, Scott W. Anderson, Sarah B. Dunn
2023, Earth Surface Processes and Landforms (48) 1398-1413
Improvements in timber harvest practices and reductions in harvest volumes over the past half century are commonly presumed to have reduced sediment loads in many western US rivers. However, direct assessments in larger watersheds are relatively sparse. Here, we compare 2019–21 sediment concentrations against those of the...
Peat decomposition and erosion contribute to pond deepening in a temperate salt marsh
Sheron Luk, Meagan J. Eagle, Giulio Mariotti, Kelsey Gosselin, Jonathan Sanderman, Amanda C. Spivak
2023, Biogeosciences (128)
Salt marsh ponds expand and deepen over time, potentially reducing ecosystem carbon storage and resilience. The water filled volumes of ponds represent missing carbon due to prevented soil accumulation and removal by erosion and decomposition. Removal mechanisms have different implications as eroded carbon can be redistributed while decomposition...
iBluff: An open-source R package for geomorphic analysis of coastal bluffs/cliffs
Monica Palaseanu-Lovejoy
2023, SoftwareX (21)
The R package iBluff is designed for coastal bluffs/bluffs morphological analysis and offers an automatic and reproducible alternative to identify bluff edges using a bare earth digital elevation model (DEM) instead of hand digitizing. This package extracts elevation profiles along automatically identified transects on...
Assimilating ecological theory with empiricism: Using constrained generalized additive models to enhance survival analyses
Alison Ketz, Daniel J. Storm, Rachel Barker, Anthony D. Apa, Cristian Oliva-Aviles, Daniel P. Walsh
2023, Methods in Ecology and Evolution (14) 952-967
1. Integrating ecological theory with empirical methods is ubiquitous in ecology using hierarchical Bayesian models. However, there has been little development focused on integration of ecological theory into models for survival analysis. Survival is a fundamental process, linking individual fitness with population dynamics, but incorporating life history strategies to inform...
Estimating parasite infrapopulation size given imperfect detection: Proof-of-concept with ectoparasitic fleas on prairie dogs
David A. Eads, Kathryn P. Huyvaert, Dean E. Biggins
2023, International Journal for Parasitology: Parasites and Wildlife (20) 117-121
Parasite infrapopulation size - the population of parasites affecting a single host - is a central metric in parasitology. However, parasites are small and elusive such that imperfect detection is expected. Repeated sampling of parasites during primary sampling occasions (e.g., each host capture) informs the detection process. Here, we estimate...
Viability of side-scan sonar to enumerate Paddlefish, a large pelagic freshwater fish, in rivers and reservoirs
Wyatt Wolfenkoehler, James M. Long, Ryan Gary, Richard A. Snow, Jason D. Schooley, Lindsey Ann Bruckerhoff, Robert Charles Lonsinger
2023, Fisheries Research (261)
Recreational-grade side-scan sonar (SSS) has become an invaluable tool for inland fisheries, particularly when characterizing underwater habitat, but it is being increasingly used for enumerating large-bodied (> 1 m total length [TL]) aquatic fauna. We used SSS in river and reservoir environments to evaluate methods for identifying and counting Paddlefish Polyodon spathula, a large...
Decompression and degassing, repressurization, and regassing during cyclic eruptions at Guagua Pichincha volcano, Ecuador, 1999–2001
Heather M. Wright, Raffaello Cioni, Katharine V. Cashman, Patricia Mothes, Mauro Rosi
2023, Bulletin of Volcanology (85)
In 1999–2001, Guagua Pichincha volcano, Ecuador, produced a series of cyclic explosive and effusive eruptions. Rock samples, including dense blocks and pumiceous clasts collected during the eruption sequence, and ballistic bombs later collected from the crater floor, provide information about magma storage, ascent, decompression, degassing, repressurization, and regassing prior to...
New maps of conductive heat flow in the Great Basin, USA: Separating conductive and convective influences
Jacob DeAngelo, Erick R. Burns, Emilie Gentry, Joseph F. Batir, Cary Ruth Lindsey, Stanley Paul Mordensky
2023, Conference Paper, Proceedings, 48th Workshop on Geothermal Reservoir Engineering
Geothermal well data from Southern Methodist University and the U.S. Geological Survey (USGS) were used to create maps of estimated background conductive heat flow across the Great Basin region of the western United States. These heat flow maps were generated as part of the USGS hydrothermal and Enhanced Geothermal Systems...
Revising supraglacial rock avalanche magnitudes and frequencies in Glacier Bay National Park, Alaska
William Smith, Stuart A. Dunning, Neil Ross, Jon Telling, Erin K. Bessette-Kirton, Dan H. Shugar, Jeffrey A. Coe, M. Geertsema
2023, Geomorphology (425)
The frequency of large supraglacial landslides (rock avalanches) occurring in glacial environments is thought to be increasing due to feedbacks with climate warming and permafrost degradation. However, it is difficult to (i) test this; (ii) establish cause–effect relationships; and (iii) determine...
Continuous stream discharge, salinity, and associated data collected in the lower St. Johns River and its tributaries, Florida, 2021
Patrick J. Ryan
2023, Open-File Report 2022-1111
The U.S. Army Corps of Engineers, Jacksonville District, is deepening the St. Johns River channel in Jacksonville, Florida, by 7 feet along 13 miles of the river channel beginning at the mouth of the river at the Atlantic Ocean, in order to accommodate larger, fully loaded cargo vessels. The U.S....
Assessment of habitat use by juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Willamette River Basin, 2020–21
Gabriel S. Hansen, Russell W. Perry, Tobias J. Kock, James S. White, Philip V. Haner, John M. Plumb, J. Rose Wallick
2023, Open-File Report 2023-1001
We conducted a field study during 2020–21 to describe habitat use patterns of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the mainstem Willamette, McKenzie, and Santiam Rivers and to evaluate how habitat suitability criteria affected the predictive accuracy of a hydraulic habitat model. Two approaches were used to collect habitat use...
