Trends analysis of Rangeland Condition Monitoring Assessment and Projection (RCMAP) fractional component time series (1985–2020)
Hua Shi, Matthew B. Rigge, Kory Postma, Brett Bunde
2022, GIScience & Remote Sensing (59) 1243-1265
Rangelands have a dynamic response to climate change, fire, and other anthropogenic disturbances. The Rangeland Condition, Monitoring, Assessment, and Projection (RCMAP) product aims to capture this response by quantifying the percent cover of eight rangeland components, associated error, and trends across the western United States using Landsat from 1985 to...
Understanding impacts of sea-level rise and land management on critical coastal marsh habitat
Camille Stagg
2022, Report
Coastal wetlands in the Louisiana Mississippi River Deltaic Plain (MRDP) experience some of the highest rates of relative sea-level rise (SLR) in the world, leading to elevated surface water salinity and prolonged flooding. Elevated salinity causes a shift toward more salt-tolerant vegetation communities, associated with changes in ecosystem function and...
Microbial community response to a bioaugmentation test to degrade trichloroethylene in a fractured rock aquifer, Trenton, N.J
Jennifer C. Underwood, Denise M. Akob, Michelle Lorah, Thomas E. Imbrigiotta, Ronald W. Harvey, Claire R. Tiedeman
2022, Microbial Ecology (98)
Bioaugmentation is a promising strategy for enhancing trichloroethylene (TCE) degradation in fractured rock. However, slow or incomplete biodegradation can lead to stalling at degradation byproducts such as 1,2-dichloroethene (cis-DCE) and vinyl chloride (VC). Over the course of 7 years, we examined the response of groundwater microbial populations in a...
Bedrock depth influences spatial patterns of summer baseflow, temperature and flow disconnection for mountainous headwater streams
Martin Briggs, Phillip J. Goodling, Zachary Johnson, Karli M. Rogers, Nathaniel P. Hitt, Jennifer H. Fair, Craig D. Snyder
2022, Hydrology and Earth System Sciences (26) 3989-4011
In mountain headwater streams, the quality and resilience of summer cold-water habitat is generally regulated by stream discharge, longitudinal stream channel connectivity and groundwater exchange. These critical hydrologic processes are thought to be influenced by the stream corridor bedrock contact depth (sediment thickness), a parameter often inferred from sparse hillslope...
Status of water-level altitudes and long-term water-level changes in the Chicot and Evangeline (undifferentiated) and Jasper aquifers, greater Houston area, Texas, 2021
Christopher L. Braun, Jason K. Ramage
2022, Scientific Investigations Report 2022-5065
Since the early 1900s, groundwater withdrawn from the primary aquifers that compose the Gulf Coast aquifer system—the Chicot and Evangeline (undifferentiated) and Jasper aquifers—has been the primary source of water in the greater Houston area, Texas. This report, prepared by the U.S. Geological Survey in cooperation with the Harris-Galveston Subsidence...
Treatment of the Chicot and Evangeline aquifers as a single hydrogeologic unit and use of geostatistical interpolation methods to develop gridded surfaces of water-level altitudes and water-level changes in the Chicot and Evangeline aquifers (undifferentiated) and Jasper aquifer, greater Houston area, Texas, 2021
Jason K. Ramage, Christopher L. Braun, John H. Ellis
2022, Scientific Investigations Report 2022-5064
The greater Houston area of Texas includes approximately 11,000 square miles and encompasses all or part of 11 counties (Harris, Galveston, Fort Bend, Montgomery, Brazoria, Chambers, Grimes, Liberty, San Jacinto, Walker, and Waller). From the early 1900s until the mid-1970s, groundwater withdrawn from the three primary aquifers that compose the...
Development, structure, and behavior of a perched lava channel at Kīlauea Volcano, Hawaiʻi, during 2007
Tim R. Orr, Edward W. Llewellin, Matthew R. Patrick
2022, Journal of Volcanology and Geothermal Research (430) 18 p.
Channelized lava flows are commonly produced during the early stages of basaltic eruptions. These channels usually maintain their morphology until the eruption ends or discharge is diverted. In some instances, narrower channels can roof over, developing into lava tubes. We report here on...
Science facilitation: Navigating the intersection of intellectual and interpersonal expertise in scientific collaboration
Amanda E. Cravens, Megan Siobhan Jones, Courtney Ngai, Jill Zarestky, Hannah B. Love
2022, Humanities and Social Sciences Communications (9)
Today’s societal challenges, such as climate change and global pandemics, are increasingly complex and require collaboration across scientific disciplines to address. Scientific teams bring together individuals of varying backgrounds and expertise to work collaboratively on creating new knowledge to address these challenges. Within a scientific team,...
Low levels of hybridization between sympatric cold-water-adapted Arctic cod and Polar cod in the Beaufort Sea confirm genetic distinctiveness
Robert E. Wilson, Sarah A. Sonsthagen, P. Lavretsky, A. Majewski, E. Arnason, K. Halldorsdottir, A.W. Einarsson, K. Wedemeyr, Sandra L. Talbot
2022, Arctic Science (8) 1082-1093
As marine ecosystems respond to climate change and other stressors, it is necessary to evaluate current and past hybridization events to gain insight on the outcomes and drivers of such events. Ancestral introgression within the gadids has been suggested to allow cod to inhabit a variety of habitats. Little attention...
Distribution and trends of endemic Hawaiian waterbirds
Eben H. Paxton, Kevin W. Brinck, Adonia Henry, Afsheen Siddiqi, Rachel A. Rounds, Jennifer Chutz
2022, Waterbirds (44) 425-437
Four endemic species of wetland-dependent waterbirds occur on the main Hawaiian Islands, all of which have experienced sharp population declines and are listed as endangered species. Twice per year, state-wide surveys are conducted to count waterbirds, but these surveys are evaluated only infrequently. We used a state-space approach...
Understory plant communities show resistance to drought, hurricanes, and experimental warming in a wet tropical forest
Aura M. Alonso-Rodriguez, Tana E. Wood, Jamarys Torres-Diaz, Molly A. Cavaleri, Sasha C. Reed, Benedicte Bachelot
2022, Frontiers in Forests and Global Change (5)
Global climate change has led to rising temperatures and to more frequent and intense climatic events, such as storms and droughts. Changes in climate and disturbance regimes can have non-additive effects on plant communities and result in complicated legacies we have yet to understand. This is especially true for...
A comprehensive assessment of mangrove species and carbon stock on Pohnpei, Micronesia
Victoria Woltz, Elitsa I. Peneva-Reed, Zhiliang Zhu, Eric L. Bullock, Richard A. MacKenzie, Maybeleen Apwong, Ken Krauss, Dean B. Gesch
Sotirios Koukoulas, editor(s)
2022, PLoS ONE (17)
Mangrove forests are the most important ecosystems on Pohnpei Island, Federated States of Micronesia, as the island communities of the central Pacific rely on the forests for many essential services including protection from sea-level rise that is occurring at a greater pace than the global average. As part of a...
Freshwater unionid mussels threatened by predation of Round Goby (Neogobius melanostomus)
Kyle Clark, Deborah D. Iwanowicz, Luke R. Iwanowicz, Sara Mueller, Joshua Wisor, Casey Bradshaw-Wilson, W. Bane Schill, Jay R. Stauffer Jr., Elizabeth W. Boyer
2022, Scientific Reports (12)
Indigenous freshwater mussels (Unionidae) are integral to riverine ecosystems, playing a pivotal role in aquatic food webs and providing ecological services. With populations on the decline worldwide, freshwater mussels are of conservation concern. In this study, we explore the propensity of the invasive Round Goby (Neogobius melanostomus) fish to prey upon indigenous...
Flexible multimethod approach for seismic site characterization
William J. Stephenson, Alan Yong, Antony Martin
2022, Journal of Seismology (26) 687-711
We describe the flexible multimethod seismic site characterization technique for obtaining shear-wave velocity (VS) profiles and derivative information, such as the time-averaged VS of the upper 30 m (VS30). Simply stated, the multimethod approach relies on the application of multiple independent noninvasive site characterization acquisition and analysis techniques utilized in a flexible field-based...
Plague circulation in small mammals elevates extinction risk for the endangered Peñasco least chipmunk
Amanda R. Goldberg, David A. Eads, Dean E. Biggins
2022, Global Ecology and Conservation (38)
Wildlife diseases are a major concern for species survival around the world. Vector-borne diseases, in particular, are problematic for both humans and wildlife. Plague is an introduced disease to North America where many species have low natural resistance to infection by the causative bacterium, Yersinia pestis. Plague in the United...
Reestablishing a foundational species: limitations on post-wildfire sagebrush seedling establishment
Robert Arkle, David S. Pilliod, Matthew J. Germino, Michelle I. Jeffries, Justin L. Welty
2022, Ecosphere (13)
Improving post-wildfire restoration of foundational plant species is crucial for conserving imperiled ecosystems. We sought to better understand the initial establishment of sagebrush (Artemisia sp.), a foundational shrubland species over a vast area of western North America, in the first 1–2 years post-wildfire, a critical time period for population recovery. Field data...
Sediment and nutrient retention on a reconnected floodplain of an Upper Mississippi River tributary, 2013–2018
Lynn A. Bartsch, Rebecca M. Kreiling, Lance R. Gruhn, Jessica D. Garrett, William B. Richardson, Greg M. Nalley
2022, Scientific Investigations Report 2022-5030
The connection of rivers with their floodplains has been greatly reduced in agricultural drainage basins, especially in the Upper Mississippi River Basin. The restriction of the Mississippi River from its floodplain has reduced the sediment trapping and nutrient deposition capabilities of the floodplain, exacerbating water quality problems in the river...
Density, harvest rates, and growth of a reintroduced American black bear population
Joshua D Alston, Joseph D. Clark, Daniel B. Gibbs, John T. Hast
2022, Journal of Wildlife Management (86)
Less than 30% of all species reintroductions have been successful and it is important that factors associated with success or failure be identified. Officials experimentally translocated 14 adult female American black bears (Ursus americanus) from Great Smoky Mountains National Park, North Carolina and Tennessee,...
Outgassing through magmatic fractures enables effusive eruption of silicic magma
Joshua Allen Crozier, Samantha Tramontano, Pablo Forte, Sarah Oliva, Helge M. Gonnermann, Einat Lev, Michael Manga, Madison Myers, Erika Rader, Philipp Ruprecht, Hugh Tuffen, Rebecca Paisley, Bruce F. Houghton, Tom Shea, Ian Schipper, Jonathan Castro
2022, Journal of Volcanology and Geothermal Research (430)
Several mechanisms have been proposed to allow highly viscous silicic magma to outgas efficiently enough to erupt effusively. There is increasing evidence that challenges the classic foam-collapse model in which gas escapes through permeable bubble networks, and instead suggests that magmatic fracturing and/or accompanying localized fragmentation...
Beyond the teleseism: Introducing regional seismic and geodetic data into routine USGS finite‐fault modeling
Dara Elyse Goldberg, Pablo Koch, Diego Melgar, Sebastian Riquelme, William L. Yeck
2022, Seismological Research Letters (93) 3308-3323
The U.S. Geological Survey (USGS) National Earthquake Information Center (NEIC) routinely produces finite‐fault models following significant earthquakes. These models are spatiotemporal estimates of coseismic slip critical to constraining downstream response products such as ShakeMap ground motion estimates, Prompt Assessment of Global Earthquake for Response loss estimates, and ground failure assessments....
Reimagine fire science for the anthropocene
Jacquelyn K. Shuman, Jennifer K. Balch, Rebecca T. Barnes, Philip E. Higuera, Christopher I. Roos, Dylan W. Schwilk, E. Natasha Stavros, Tirtha Banerjee, Megan Bela, Jacob Bendix, Sandro Bertolino, Solomon Bililign, Kevin D. Bladon, Paulo Brando, Robert E. Breidenthal, Brian Buma, Donna Calhoun, Leila M. V. Carvalho, Megan Cattau, Kaelin M Cawley, Sudeep Chandra, Melissa L. Chipman, Jeanette Cobian, Erin Conlisk, Jonathan Coop, Alison Cullen, Kimberley T Davis, Archana Dayalu, Megan Dolman, Lisa M. Ellsworth, Scott Franklin, Chris Guiterman, Matthew Hamilton, Erin J. Hanan, Winslow D. Hansen, Stijn Hantson, Brian J Harvey, Andrés Holz, Matt Hurteau, Nayani T Ilangakoon, Megan Jennings, Charles Jones, Anna Klimaszewski-Patterson, Leda N. Kobziar, John Kominoski, Branko Kosovic, Meg A. Krawchuk, Paul Laris, Jackson Leonard, S. Marcela Loria- Salazar, Melissa Lucash, Hussam Mahmoud, Ellis Margolis, Toby Maxwell, Jessica McCarty, David B McWethy, Rachel Meyer, Jessica R. Miesel, W. Keith Moser, R. Chelsea Nagy, Dev Niyogi, Hannah M. Palmer, Adam Pellegrini, Benjamin Poulter, Kevin Robertson, Adrian Rocha, Mojtaba Sadegh, Fernando De Sales, Fernanda Santos, Facundo Scordo, Joseph O. Sexton, A Surjalal Sharma, Alistair M. S. Smith, Amber Soja, Christopher Still, Tyson Swetnam, Alexandra D. Syphard, Morgan W. Tingey, Ali Tohidi, Anna Trugman, Merritt Turetsky, J. Morgan Varner, Yuhang Wang, Thea Whitman, Stephanie Yelenik, Xu Zhang
2022, PNAS Nexus (1)
Fire is an integral component of ecosystems globally and a tool that humans have harnessed for millennia. Altered fire regimes are a fundamental cause and consequence of global change, impacting people and the biophysical systems on which they depend. As part of the newly emerging Anthropocene, marked by human-caused...
Modeled streamflow response to scenarios of Tundra Lake water withdrawal and seasonal climate extremes, Arctic Coastal Plain, Alaska
Anne Gädeke, Christopher Arp, Anna K. Liljedahl, Ronald P. Daanen, Lei Cai, Vladimir Alexeev, Benjamin Jones, Mark S. Wipfli, Jörg Schulla
2022, Water Resources Research (58)
On the Arctic Coastal Plain (ACP) in Northern Alaska (USA), permafrost and abundant surface-water storage define watershed hydrological processes, which are increasingly subject to changes both in climate and land-use. In the last decades, the ACP landscape experienced extreme climate events and increased lake water withdrawal (LWW) for construction of...
Groundwater resources of the Harney Basin, southeastern Oregon
Stephen B. Gingerich, C. Amanda Garcia, Henry M. Johnson
2022, Fact Sheet 2022-3052
In response to increasing groundwater demand and declining groundwater levels in the Harney Basin of southeastern Oregon, the U.S. Geological Survey and the Oregon Water Resources Department conducted a cooperative groundwater-availability study during 2016–22. This Fact Sheet summarizes the results of this study. Full details of the study are provided...
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...
