Integrating tracking and resight data enables unbiased inferences about migratory connectivity and winter range survival from archival tags
Clark S Rushing, Aimee M Van Tatenhove, Andrew Sharp, Viviana Ruiz-Gutierrez, Mary Freeman, Paul W. Sykes, Aaron M. Given, T. Scott Sillett
2021, Ornithological Applications (123)
Archival geolocators have transformed the study of small, migratory organisms but analysis of data from these devices requires bias correction because tags are only recovered from individuals that survive and are re-captured at their tagging location. We show that integrating geolocator recovery data and mark–resight data enables unbiased estimates of...
Stock composition of Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus) encountered in marine and estuarine environments on the U.S. Atlantic Coast
David C. Kazyak, Shannon L. White, Barbara A. Lubinski, Robin L. Johnson, Michael S. Eackles
2021, Conservation Genetics (22) 767-781
Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus) is a large, anadromous fish native to the Atlantic Coast of North America. Although this species once supported important fisheries, centuries of exploitation and habitat degradation have resulted in dramatic declines, presumed extirpation in some rivers, and ultimately listing under the...
Multi-decadal shifts in the distribution and timing of Pacific herring (Clupea pallasii) spawning in Prince William Sound, Alaska
David W. McGowan, Trevor A. Branch, Stormy Haught, Mark David Scheuerell
Trevor A. Branch, editor(s)
2021, Canadian Journal of Fisheries and Aquatic Sciences (78) 1611-1627
The location and timing of spawning play a critical role in pelagic fish survival during early life stages and can affect subsequent recruitment. Spawning patterns of Pacific herring (Clupea pallasii) were examined in Prince William Sound (1973–2019) where the population has failed to recover since its collapse in 1993. Abrupt...
Three-dimensional geologic map of the Brady geothermal area, Nevada
Drew L. Siler, James E. Faulds, Nicholas H. Hinz, John H. Queen
2021, Scientific Investigations Map 3469
The three-dimensional (3D) geologic map characterizes the subsurface in the Brady geothermal area in the northern Hot Springs Mountains of northwestern Nevada. We built the 3D map by integrating the results from detailed geologic mapping, seismic-reflection, potential-field-geophysical, and lithologic well-logging investigations completed in the study area. This effort was undertaken...
Slow recovery of headwater-stream fishes following a catastrophic poisoning event
Mary Freeman, Duncan Elkins, Peter Maholland, Zachary Butler, Maxwell Kleinhans, Jonathan Skaggs, Edward Stowe, Carrie A. Straight, Seth J. Wenger
2021, Journal of Fish and Wildlife Management (12) 362-372
Accidental spills of chemicals and other pollutants can decimate populations of stream-dwelling species. Recovery from such accidents can be relatively fast and complete when the affected stream reaches can be recolonized from upstream and downstream sources. However, faunal recoveries from accidental spills that extirpate populations...
Remote ecological monitoring with smartphones and tasker
Therese M. Donovan, Cathleen Balantic, Jonathan Katz, Mark Massar, Randy Knutson, Kara Duh, Peter Jones, Keith Epstein, Julien Lacasse-Roger, João Dias
2021, Journal of Fish and Wildlife Management (12) 163-173
Researchers have increasingly used autonomous monitoring units to record animal sounds, track phenology with timed photographs, and snap images when triggered by motion. We piloted the use of smartphones to monitor wildlife in the Riverside East Solar Energy Zone (California) and at Indiana Dunes National Park (Indiana). For both efforts,...
Geology of the Payette National Forest and vicinity, west-central Idaho
Karen Lund
2021, Professional Paper 1666
Before the Late Cretaceous, the eastern and western parts of the geologically complex Payette National Forest, as divided by the Salmon River suture, had fundamentally different geologic histories. The eastern part is underlain by Mesoproterozoic to Cambrian(?) rocks of the Laurentian (Precambrian North American) continent. Thick Mesoproterozoic units, which are...
Golden Eagle
Todd E. Katzner, Michael N. Kochert, Karen Steenhof, Carol L. McIntyre, Erica H. Craig, Tricia A. Miller
2021, Book chapter, Birds of the world
The Golden Eagle inhabits a wide range of latitudes and habitats throughout the Palearctic and into northern Africa, where it is largely resident. In North America, its breeding distribution includes most of Canada and Alaska, as well as the western half of the United States and northern and western Mexico....
Nitrogen biogeochemistry in a boreal headwater stream network in interior Alaska
Richard L. Smith, Deborah A. Repert, Joshua C. Koch
2021, Science of the Total Environment (764)
High latitude, boreal watersheds are nitrogen (N)-limited ecosystems that export large amounts of organic carbon (C). Key controls on C cycling in these environments are the biogeochemical processes affecting the N cycle. A study was conducted in Nome Creek, an upland headwater tributary of the Yukon River,...
Remote sensing analysis to quantify change in woodland canopy cover on the San Carlos Apache Reservation, Arizona (1935 vs. 2017)
Barry R. Middleton, Laura M. Norman
2021, Land (10)
Since the late 1800s, pinyon–juniper woodland across the western U.S. has increased in density and areal extent and encroached into former grassland areas. The San Carlos Apache Tribe wants to gain qualitative and quantitative information on the historical conditions of their tribal woodlands to use as a baseline for restoration...
Reconstructing the dynamics of the highly similar May 2016 and June 2019 Iliamna Volcano, Alaska ice–rock avalanches from seismoacoustic data
Liam Toney, David Fee, Kate E. Allstadt, Matthew M. Haney, Robin S. Matoza
2021, Earth Surface Dynamics (9) 271-293
Surficial mass wasting events are a hazard worldwide. Seismic and acoustic signals from these often remote processes, combined with other geophysical observations, can provide key information for monitoring and rapid response efforts and enhance our understanding of event dynamics. Here, we present seismoacoustic data and analyses for two very large...
Roads less travelled by— Pleistocene piracy in Washington’s northwestern Channeled Scabland
Richard B. Waitt
Richard B. Waitt, Glenn D. Thackray, Alan R. Gillespie, editor(s)
2021, Book chapter, Untangling the Quaternary period—A legacy of Stephen C. Porter
The Pleistocene Okanogan lobe of Cordilleran ice in north-central Washington State dammed Columbia River to pond glacial Lake Columbia and divert the river south across one or another low spot along a 230-km-long drainage divide. When enormous Missoula floods from the east briefly engulfed the lake, water poured across a...
The American Kestrel (Falco sparverius) genoscape: Implications for monitoring, management, and subspecies boundaries
K. C. Ruegg, M. Brinkmeyer, C. M. Bossu, R. Bay, E. C. Anderson, Clint W. Boal, R. D. Dawson, A. Eschenbauch, C. J. W. McClure, K. E. Miller, L. Morrow, J. R. Morrow, M. D. Oleyar, B. Ralph, S. Schulwitz, T. Swem, J. F. Therrien, Rich Van Buskirk, T. B. Smith, J. A. Heath
J-F. Therrien, editor(s)
2021, Ornithology (138)
Identifying population genetic structure is useful for inferring evolutionary process and comparing the resulting structure with subspecies boundaries can aid in species management. The American Kestrel (Falco sparverius) is a widespread and highly diverse species with 17 total subspecies, only 2 of which are found north of U.S./Mexico border (F....
Prevalence of neonicotinoids and sulfoxaflor in alluvial aquifers in a high corn and soybean producing region of the Midwestern United States
D.A. Thompson, Dana W. Kolpin, Michelle L. Hladik, Kimberlee K. Barnes, J.D. Vargo, R.W. Field
2021, Science of the Total Environment (782)
Neonicotinoids have been previously detected in Iowa surface waters, but less is known regarding their occurrence in groundwater. To help fill this research gap, a groundwater study was conducted in eastern Iowa and southeastern Minnesota, a corn and soybean producing area with known heavy neonicotinoid...
Dynamic Energy Budget modelling to predict eastern oyster growth, reproduction, and mortality under river management and climate change scenarios
Romain Lavaud, Megan La Peyre, Justic Dubravko, Jerome F. La Peyre
2021, Estuarine, Coastal and Shelf Science (251)
Eastern oysters growing in deltaic Louisiana estuaries in the northern Gulf of Mexico must tolerate considerable salinity variation from natural climate variability (e.g., rainfall and stream run-off pushing isohalines offshore; tropical storms pushing isohalines inshore) and man-made diversions and siphons releasing freshwater from the Mississippi River. These salinity variations are...
Synthesis of geochronologic research on Late Pliocene to Holocene emergent shorelines in the lower Savannah River area of southeastern Georgia, USA
Helaine W. Markewich, Milan J. Pavich, Shannon A. Mahan, Paul R. Bierman, Wilma B. Aleman-Gonzalez, Arthur P. Schultz
2021, Open-File Report 2021-1015
Emergent late Pliocene and Pleistocene shoreline deposits, morphologically identifiable Pleistocene shoreline units, and seaward-facing scarps characterize the easternmost Atlantic Coastal Plain (ACP) of the United States of America. In some areas of the ACP, these deposits, units, and scarps have been studied in detail. Within these areas, temporal and spatial...
Lake trout rehabilitation in Lake Ontario, 2020
Brian F. Lantry, Brian Weidel, Scott P. Minihkeim, Michael J. Connerton, Jessica Goretzke, Dimitry Gorsky, Christopher Osborne
2021, Book chapter, NYSDEC Lake Ontario Annual Report 2020
Each year we report on the progress toward rehabilitation of the Lake Ontario lake trout (Salvelinus namaycush) population, including the results of stocking, annual assessment surveys, creel surveys, and evidence of natural reproduction observed from standard surveys performed by USGS and NYSDEC. Response to the COVID-19 pandemic limited survey...
First record and diet of the tricolored bat (Perimyotis subflavus) from Guadalupe National Park and Culberson County, Texas
Mollie K Hanttula, Ernest W. Valdez
2021, Western North American Naturalist (81) 131-134
The tri-colored bat (Perimyotis subflavus) occurs throughout the eastern United States, from Canada to south Florida and westward to eastern New Mexico, central Colorado, and western Texas. In this study, we document the first record of P. subflavus for both Guadalupe Mountains National Park and Culberson County, Texas....
Texas and Landsat
U.S. Geological Survey
2021, Fact Sheet 2021-3017
The State of Texas has the largest land area of any in the contiguous United States, and its sprawling landscapes show rich geographic diversity. The Lone Star State has cactus flats in the high plains of its far western panhandle, rolling hills in its western Trans-Pecos region, farms and ranchlands...
Preliminary assessment of carbon and nitrogen sequestration potential of wildfire-derived sediments stored by erosion control structures in forest ecosystems, southwest USA
James B. Callegary, Laura M. Norman, Christopher J. Eastoe, Joel B. Sankey, Ann Youberg
2021, Air, Soil and Water Research (14)
The role of pyrogenic carbon (PyC) in the global carbon cycle is still incompletely characterized. Much work has been done to characterize PyC on landforms and in soils where it originates or in “terminal” reservoirs such as marine sediments. Less is known about intermediate reservoirs such as...
Landscape evolution in eastern Chuckwalla Valley, Riverside County, California
Amy E. East, Harrison J. Gray, Margaret Hiza Redsteer, Matthew Ballmer
2021, Scientific Investigations Report 2021-5017
This study investigates sedimentary and geomorphic processes in eastern Chuckwalla Valley, Riverside County, California, a region of arid, basin-and-range terrain where extensive solar-energy development is planned. The objectives of this study were to (1) measure local weather parameters and use them to model aeolian sediment-transport potential; (2) identify surface sedimentary...
Brittle fragmentation by rapid gas separation in a Hawaiian fountain
Atsuko Namiki, Matthew R. Patrick, Michael Manga, Bruce F. Houghton
2021, Nature Geoscience (14) 242-247
Brittle fragmentation, generating small pyroclasts from magma, is a key process determining eruptive style. How low-viscosity magma fragments within a rising fountain in a brittle manner, however, is not well understood. Here we describe a fragmentation process in Hawaiian fountains on the basis of observations from...
Implications of model selection: A comparison of publicly available, conterminous US-extent hydrologic component estimates
Samuel Saxe, William H. Farmer, Jessica M. Driscoll, Terri S. Hogue
2021, Hydrology and Earth System Sciences (25) 1529-1598
Spatiotemporally continuous estimates of the hydrologic cycle are often generated through hydrologic modeling, reanalysis, or remote sensing (RS) methods and are commonly applied as a supplement to, or a substitute for, in situ measurements when observational data are sparse or unavailable. This study compares estimates of precipitation (P), actual...
Evaluation and application of the Purge Analyzer Tool (PAT) to determine in-well flow and purge criteria for sampling monitoring wells at the Stringfellow Superfund site in Jurupa Valley, California, in 2017
Philip T. Harte, Tomas Perina, Kent Becher, Herb Levine, Daewon Rojas-Mickelson, Lesley Walther, Anthony A. Brown
2021, Scientific Investigations Report 2020-5140
The U.S. Geological Survey and U.S. Environmental Protection Agency are developing analytical tools to assess the representativeness of groundwater samples from fractured-rock aquifers. As part of this effort, monitoring wells from the Stringfellow Superfund site in Jurupa Valley in Riverside County, California, approximately 50 miles east of Los Angeles, were...
A revised position for the primary strand of the Pleistocene-Holocene San Andreas fault in southern California
Kim Blisniuk, Katherine M. Scharer, Warren Sharp, Roland Burgmann, Colin Amos, Michael Rymer
2021, Science Advances (7)
The San Andreas fault has the highest calculated time-dependent probability for large-magnitude earthquakes in southern California. However, where the fault is multistranded east of the Los Angeles metropolitan area, it has been uncertain which strand has the fastest slip rate and, therefore, which has the highest probability of a destructive...
