Abundance and distribution of sea otters (Enhydra lutris) in the southcentral Alaska stock, 2014, 2017, and 2019
George G. Esslinger, Brian H. Robinson, Daniel H. Monson, Rebecca L. Taylor, Daniel Esler, Ben P. Weitzman, Joel Garlich-Miller
2022, Open-File Report 2021-1122
The Southcentral Alaska (SCAK) sea otter (Enhydra lutris) stock is the northernmost stock of sea otters, a keystone predator known for structuring nearshore marine ecosystems. We conducted aerial surveys within the range of the SCAK sea otter stock to provide recent estimates of sea otter abundance and distribution. We defined...
Streamflow, water quality, and constituent loads and yields, Scituate Reservoir drainage area, Rhode Island, water year 2018
Kirk P. Smith
2022, Data Report 1144
As part of a long-term cooperative program to monitor water quality within the Scituate Reservoir drainage area, the U.S. Geological Survey in cooperation with the Providence Water Supply Board collected streamflow and water-quality data at the Scituate Reservoir and tributaries. Streamflow and concentrations of chloride and sodium estimated from records...
The potential of wave energy conversion to mitigate coastal erosion from hurricanes
Cigdem Ozkan, Talea Mayo, Davina Passeri
Rafael Morales, editor(s)
2022, Journal of Marine Science and Engineering (10) 1-26
Wave energy conversion technologies have recently attracted more attention as part of global efforts to replace fossil fuels with renewable energy resources. While ocean waves can provide renewable energy, they can also be destructive to coastal areas that are often densely populated and vulnerable to coastal erosion. There have been...
Guidelines for volcano-observatory operations during crises: Recommendations from the 2019 Volcano Observatory Best Practices meeting
Jacob B. Lowenstern, Kristi L. Wallace, Sara Barsotti, Laura Sandri, Wendy K. Stovall, Benjamin Bernard, Eugenio Privitera, Jean-Christophe Komorowski, Nico Fournier, Charles Baligizi, Esline Gareabiti
2022, Journal of Applied Volcanology (11) 1-24
In November 2019, the fourth meeting on Volcano Observatory Best Practices workshop was held in Mexico City as a series of talks, discussions, and panels. Volcanologists from around the world offered suggestions for ways to optimize volcano-observatory crisis operations. By crisis, we mean unrest that may or may not lead...
Testing the potential of streamflow data to predict spring migration of an ungulate herds
Jason S. Alexander, Marissa L. Murr, Cheryl A. Eddy-Miller
Stefano Grignolio, editor(s)
2022, PLoS ONE (17) 1-18
In mountainous and high latitude regions, migratory animals exploit green waves of emerging vegetation coinciding with rising daily mean temperatures initiating snowmelt across the landscape. Snowmelt also causes rivers and streams draining these regions to swell, a process referred to as to as the ‘spring pulse.’ Networks of streamgages measuring...
Earthquake early warning for estimating floor shaking levels of tall buildings
S. Farid Ghahari, Annemarie S. Baltay Sundstrom, Mehmet Celebi, Grace Alexandra Parker, Jeffrey J. McGuire, Ertugrul Taciroglu
2022, Bulletin of the Seismological Society of America (112) 820-849
This article investigates methods to improve earthquake early warning (EEW) predictions of shaking levels for residents of tall buildings. In the current U.S. Geological Survey ShakeAlert EEW system, regions far from an epicenter will not receive alerts due to low predicted ground‐shaking intensities. However, residents...
A landscape approach for identifying potential reestablishment sites for extirpated stream fishes: an example with Arctic grayling (Thymallus arcticus) in Michigan
Ralph William Tingley, Dana M. Infante, Emily M. Dean, Douglas W. Schemske, Arthur R. Cooper, Jared Ross, Wesley M. Daniel
2022, Hydrobiologia (849) 1397-1415
Habitat degradation combined with climate change increases the threat of extinction for stream fishes. In response to these threats, efforts to reestablish species within formerly occupied streams or translocation to suitable areas may be effective conservation strategies. In the absence of historic species presence data, identifying locations where suitable habitat...
Ready for real time: Performance of Global Navigation Satellite System in 2019 Mw 7.1 Ridgecrest, California, rapid response products
Dara Elyse Goldberg, Kirstie Lafon Haynie
2022, Seismological Research Letters (93) 517-530
Global Navigation Satellite Systems (GNSSs) have undergone notable advancement in the last few decades, leading to the availability of a dataset with capabilities well beyond its original intended purpose. The proliferation of high‐rate (1 Hz or greater) GNSS receivers in areas of seismological interest now allows for routine consideration of dynamic...
Redundancy analysis reveals complex den use patterns by eastern spotted skunks, a conditional specialist
Emily D. Thorne, W. Mark Ford
2022, Ecosphere (13)
Wildlife managers tasked with understanding habitat and resource selection at the population level attempt to characterize patterns in nature that aid and inform conservation. Resource selection functions (RSFs), such as discrete choice analyses, are the standard convention to characterize the effects of habitat attributes on resource selection patterns. These tools...
Groundwater hydrology in the area of Savannah and Gunstocker Creeks in northeastern Hamilton, southern Meigs, and northwestern Bradley Counties, Tennessee, 2007–09
John K. Carmichael
2022, Scientific Investigations Report 2021-5135
The U.S. Geological Survey, in cooperation with the Savannah Valley Utility District, evaluated the groundwater hydrology of the Valley and Ridge carbonate rock aquifer in northeastern Hamilton, southern Meigs, and northwestern Bradley Counties, Tennessee, from 2007 through 2009. The evaluation included, and built on, the results of test drilling conducted...
Alaska Volcano Observatory archive of seismic drum records of eruptions of Augustine Volcano (1986), Redoubt Volcano (1989–90), Mount Spurr (1992), and Pavlof Volcano (1996), and the 1996 earthquake swarm at Akutan Peak
James P. Dixon, John A. Power
2022, Data Report 1146
The advent of continuous digital recording of seismograph stations in Alaska did not occur until the fall of 2002. Continuous records of seismic waveforms prior to 2002 were recorded only in analog form. The Alaska Volcano Observatory (AVO) has a substantial archive of continuous analog records made on helicorders in...
A novel regression method for harmonic analysis of time series
Qiang Zhou, Zhe Zhu, George Z. Xian, Congcong Li
2022, ISPRS Journal of Photogrammetry and Remote Sensing (185) 48-61
Harmonic analysis of time series is an important technique in remote sensing to reveal seasonal land surface dynamics. However, frequency selection in the harmonic analysis is often difficult because high-frequency components are useful for delineating seasonal dynamics but sensitive to noise and gaps in time series. On the other hand,...
The accuracy and consistency of 3D Elevation Program data: A systematic analysis
Jason M. Stoker, Barry Miller
2022, Remote Sensing (14)
The 3D Elevation Program (3DEP) has created partnership opportunities to increase the collection of high-resolution elevation data across the United States, eventually leading to complete coverage of high-resolution, three-dimensional (3D) information from light detection and ranging (lidar) data across the entire country (interferometric synthetic aperture radar in Alaska). While 3DEP...
Phenomenological and mechanistic modeling of recreational angling behavior using creel data
Alexander J. Jensen, Steven J. Dundas, James T. Peterson
2022, Fisheries Research (249)
Improved understanding of angling behavior in recreational fisheries can help managers account for partial controllability in systems in which angling effort is not directly regulated. Relevant aspects of angling behavior include fishing participation, site choice, and catch-and-release actions and can be considered at scales of both aggregate fishing effort and...
Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) at the Mojave River Dam, San Bernardino County, California—2021 Data summary
Scarlett L. Howell, Barbara E. Kus
2022, Data Report 1149
Executive SummaryWe surveyed for Least Bell’s Vireos (Vireo bellii pusillus; vireo) and Southwestern Willow Flycatchers (Empidonax traillii extimus; flycatcher) at the Mojave River Dam study area near Hesperia, California, in 2021. Four vireo surveys were conducted between April 16 and July 16, 2021, and three flycatcher surveys were conducted between...
Critical thermal maximum of stream fishes including distinct populations of Smallmouth Bass
Shannon K. Brewer, R. Mollenhauer, J. Alexander, D.E. Moore
2022, North American Journal of Fisheries Management (42) 352-360
Understanding the thermal tolerances of stream fishes, including sport fishes, is important for assessing thermal stressors that are common across the landscape. Our study objectives were to determine the thermal tolerances of 17 stream fishes (15 species and 2 genetically distinct populations of juvenile Smallmouth Bass Micropterus dolomieu: the Neosho subspecies M....
Diet analysis using generalized linear models derived from foraging processes using R package mvtweedie
James T. Thorson, Mayumi L. Arimitsu, Taal Levi, Gretchen Roffler
2022, Ecology (103)
Diet analysis integrates a wide variety of visual, chemical, and biological identification of prey. Samples are often treated as compositional data, where each prey is analyzed as a continuous percentage of the total. However, analyzing compositional data results in analytical challenges, for example, highly parameterized models or prior transformation of...
Using surrogate taxa to inform response methods for invasive Grass Carp in the Laurentian Great Lakes
Jason L. Fischer, Lucas Nathan, John Buszkiewicz, Julia Colm, D. Andrew R. Drake, Mark R. DuFour, Patrick Kocovsky, Dave Marson, Eric R. B. Smyth, Ryan Young, Kelly F. Robinson
2022, North American Journal of Fisheries Management (42) 151-163
Sampling method decisions are critical for the effective monitoring and management of fisheries. Deploying the most effective sampling methodologies is particularly important when responding to new invasive species, where early response efforts have the best chances for eradication. In the Laurentian Great Lakes, the invasive Grass...
Golden eagle occupancy surveys and monitoring strategy in coastal southern California, United States
David Wiens, Peter H. Bloom, Melanie C. Madden, Patrick Kolar, Jeff A. Tracey, Robert N. Fisher
2022, Frontiers in Ecology and Environment (9)
Golden eagles (Aquila chrysaetos) are of increasing conservation concern in western North America. Effective conservation measures for this wide-ranging, federally protected raptor species require monitoring frameworks that accommodate strong inference on the status of breeding populations across vast landscapes. We used a broad-scale sampling design to identify relationships between landscape...
Implementation of the CCDC algorithm to produce the LCMAP Collection 1.0 annual land surface change product
George Z. Xian, Kelcy Smith, Danika F. Wellington, Josephine Horton, Qiang Zhou, Congcong Li, Roger F. Auch, Jesslyn F. Brown, Zhe Zhu, Ryan R. Reker
2022, Earth System Science Data (14) 143-162
The increasing availability of high-quality remote sensing data and advanced technologies have spurred land cover mapping to characterize land change from local to global scales. However, most land change datasets either span multiple decades at a local scale or cover limited time over a larger geographic extent. Here, we present...
Predator–prey interactions of terrestrial invertebrates are determined by predator body size and species identity
Ana Miller-ter Kuile, Austen Apigo, An Bui, Bartholomew DiFiore, Elizabeth S. Forbes, Michelle Lee, Devyn Orr, Daniel L Preston, Rachel Behm, Taylor A. Bogar, Jasmine N. Childress, Rodolfo Dirzo, Maggie Klope, Kevin D. Lafferty, John Mclaughlin, Marisa F Morse, Carina Motta, Kevin Park, Katherine A. Plummer, David A. Weber, Ronny Young, Hillary S. Young
2022, Ecology
Predator–prey interactions shape ecosystems and can help maintain biodiversity. However, for many of the earth's most biodiverse and abundant organisms, including terrestrial arthropods, these interactions are difficult or impossible to observe directly with traditional approaches. Based on previous theory, it is likely that predator–prey interactions for...
Post-landing major element quantification using SuperCam laser induced breakdown spectroscopy
Ryan B. Anderson, Olivier Forni, Agnes Cousin, Roger C. Wiens, Samuel M. Clegg, Jens Frydenvang, Travis S.J. Gabriel, Ann M. Ollila, Susanne Schröder, Olivier Beyssac, Erin Gibbons, David Vogt, Elise Clave, Jose-Antonio Manrique, Carey Legett, Paolo Pilleri, Raymond Newell, Joseph Sarrao, Sylvestre Maurice, Gorka Arana, Karim Benzerara, Pernelle Bernardi, Sylvain Bernard, Bruno Bousquet, Adrian J. Brown, Cesar Alvarez-Llamas, Baptiste Chide, Edward A. Cloutis, Jade Comellas, Stephanie Connell, Erwin Dehouck, Dorothea Delapp, Ari Essunfeld, Cecile Fabre, Thierry Fouchet, Cristina Garcia, Laura Garcia-Gomez, Patrick J. Gasda, Olivier Gasnault, Elisabeth Hausrath, Nina L. Lanza, Javier Laserna, Jeremie Lasue, Guillermo Lopez, Juan Manuel Madariaga, Lucia Mandon, Nicolas Mangold, Pierre-Yves Meslin, Marion Nachon, Anthony Nelson, Horton E. Newsom, Adriana Reyes-Newell, Scott Robinson, Fernando Rull, Shiv Sharma, Justin I Simon, Pablo Sobron, Imanol Torre Fernandez, Arya Udry, Dawn Venhaus, Scott McLennan, Richard V. Morris, Bethany L. Ehlmann
2022, Spectrochimica Acta B (188)
The SuperCam instrument on the Perseverance Mars 2020 rover uses a pulsed 1064 nm laser to ablate targets at a distance and conduct laser induced breakdown spectroscopy (LIBS) by analyzing the light from the resulting plasma. SuperCam LIBS spectra are preprocessed to remove ambient light, noise, and...
Major reorganization of the Snake River modulated by passage of the Yellowstone Hotspot
Lydia M. Staisch, Jim E. O'Connor, Charles M. Cannon, Christopher S. Holm-Denoma, Paul K. Link, John Lasher, Jeremy A. Alexander
2022, GSA Bulletin (134) 1834-1844
The details and mechanisms for Neogene river reorganization in the U.S. Pacific Northwest and northern Rocky Mountains have been debated for over a century with key implications for how tectonic and volcanic systems modulate topographic development. To evaluate paleo-drainage networks, we produced an expansive data...
hical—The HiRISE radiometric calibration software developed within the ISIS3 planetary image processing suite
Kris J. Becker, Moses P. Milazzo, W. Alan Delamere, Kenneth E. Herkenhoff, Eric M. Eliason, Patrick S. Russell, Laszlo P. Keszthelyi, Alfred S. McEwen
2022, Techniques and Methods 7-C27
IntroductionThis report summarizes the software and algorithms that are used to calibrate images returned by the High Resolution Imaging Science Experiment (HiRISE) camera onboard the Mars Reconnaissance Orbiter (MRO) spacecraft. The instrument design and data processing methods are summarized below, followed by a description of relevant calibration data and details...
Geology and hydrogeology of the Yucaipa groundwater subbasin, San Bernardino and Riverside Counties, California
Geoffrey Cromwell, Jonathan C. Matti
2022, Scientific Investigations Report 2021-5129
The Yucaipa groundwater subbasin (referred to in this report as the Yucaipa subbasin) is located about 75 miles (mi) east of of Los Angeles and about 12 mi southeast of the City of San Bernardino. In the Yucaipa subbasin, as in much of southern California, limited annual rainfall and large...
