Diplotriaena obtusa (Nematoda: Diplotriaenidae) from barn swallows (Hirundo rustica) and cliff swallows (Petrochelidon pyrrhonota) collected during mortality events in the Upper Midwest, USA
Michelle Michalski, Emily Kadolph, Constance Roderick, Julia S. Lankton, Rebecca A. Cole
2021, Journal of Parasitology (107) 593-599
Several mortality events involving barn swallows (Hirundo rustica) and cliff swallows (Petrochelidon pyrrhonota) were reported in the Upper Midwestern states in 2017 and 2018. Barn swallow mortality followed unseasonal cold snaps, with the primary cause of death being emaciation with concurrent air sac nematodiasis. Lesions in cliff swallows were consistent...
Using the DRCOG 2018 pilot land use land cover data to predict urban air temperature in the Denver metro area
Peter Christian Ibsen
2021, Newsletter
No abstract available....
FLUXNET-CH4: A global, multi-ecosystem database and analysis of methane seasonality from freshwater wetlands
Kyle B. Delwiche, Sarah Knox, Avni Malhotra, Etienne Fluet-Chouinard, Gavin McNicol, Sarah Feron, Zutao Ouyang, Dario Papale, Carlo Trotta, Eleonora Canfora, You-Wei Cheah, Danielle Christianson, Ma. Carmelita R. Alberto, Pavel Alekseychik, Mika Aurela, Dennis Baldocchi, Sheel Bansal, David P. Billesbach, Gil Bohrer, Rosvel Bracho, Nina Buchmann, David I. Campbell, Gerardo Celis, Weinan Chen, Jiquan Chen, Housen Chu, Higo J Dalmagro, Sigrid Dengel, Ankur R. Desai, Matteo Detto, Han Dolman, Elke Eichelmann, Eugenie S. Euskirchen, Daniela Famulari, Kathrin Fuchs, Mathias Goeckede, Sébastien Gogo, Mangaliso J Gondwe, Jordan P. Goodrich, Pia Gottschalk, Scott L. Graham, Martin Heimann, Manuel Helbig, Carole Helfter, Kyle S. Hemes, Takashi Hirano, David Hollinger, Lukas Hortnagl, Hiroki Iwata, Adrien Jacotot, Joachim Jansen, Gerald Jurasinski, Minseok Kang, Kuno Kasak, John King, Janina Klatt, Franziska Koebsch, Ken Krauss, Derrick Y.F. Lai, Annalea Lohila, Ivan Mammarella, Luca B Marchesini, Giovanni Manca, Jaclyn H Matthes, Trofim Maximov, Lutz Merbold, Bhaskar Mitra, Timothy H. Morin, Eiko Nemitz, Mats B. Nilsson, Shuli Niu, Walter C. Oechel, Patricia Y. Oikawa, Keisuke Ono, Matthias Peichl, Olli Peltola, Michele L. Reba, Andrew D. Richardson, William Riley, Benjamin RK Runkle, Youngryel Ryu, Torsten Sachs, Ayaka Sakabe, Camilo Rey Sanchez, Edward A. Schuur, Karina VR Schafer, Oliver Sonnentag, Jed P. Sparks, Ellen Stuart-Haëntjens, Cove Sturtevant, Ryan C. Sullivan, Daphne J. Szutu, Jonathan E Thom, Margaret S. Torn, Eeva-Stiina Tuittila, Jessica Turner, Masahito Ueyama, Alex C. Valach, Rodrigo Vargas, Andrej Varlagin, Alma Vazquez-Lule, Joseph G. Verfaillie, Timo Vesala, George L Vourlitis, Eric Ward, Christian Wille, Georg Wohlfahrt, Guan Xhuan Wong, Zhen Zhang, Donatella Zona, Lisamarie Windham-Myers, Benjamin Poulter, Robert B. Jackson
2021, Earth System Science Data (13) 3607-3689
Methane (CH4) emissions from natural landscapes constitute roughly half of global CH4 contributions to the atmosphere, yet large uncertainties remain in the absolute magnitude and the seasonality of emission quantities and drivers. Eddy covariance (EC) measurements of CH4 flux are ideal for constraining ecosystem-scale CH4 emissions due to quasi-continuous...
Late Holocene slip rate of the Mojave section of the San Andreas Fault near Palmdale, California
Elaine Young, Eric Cowgill, Katherine M. Scharer, Emery Anderson-Merritt, Amanda Keen-Zebert, Ray J. Weldon
2021, Bulletin of the Seismological Society of America (111) 3204-3225
The geologic slip rate on the Mojave section of the San Andreas fault is poorly constrained, despite its importance for understanding earthquake hazard, apparent discrepancies between geologic and geodetic slip rates along this fault section, and long‐term fault interactions in southern California. Here, we...
Pervasive changes in stream intermittency across the United States
Samuel Zipper, John C. Hammond, Margaret Shanafield, Margaret Zimmer, Thibault Datry, C. Nathan Jones, Kendra E. Kaiser, Sarah E. Godsey, Ryan Burrow, Joanna Blaszczak, Michelle Busch, Adam N. Price, Kate Boersma, Adam Ward, Katie Costigan, George H. Allen, Corey Krabbenhoft, Walter Dodds, Meryl C. Mims, Julian Olden, Stephanie K. Kampf, Amy J. Burgin, Daniel C. Allen
2021, Environmental Research Letters (16)
Non-perennial streams are widespread, critical to ecosystems and society, and the subject of ongoing policy debate. Prior large-scale research on stream intermittency has been based on long-term averages, generally using annually aggregated data to characterize a highly variable process. As a result, it is not well understood...
Peak-flow variability, peak-flow informational needs, and consideration of regional regression analyses in managing the crest-stage gage network in Montana
Steven K. Sando
2021, Scientific Investigations Report 2021-5063
The U.S. Geological Survey (USGS), in cooperation with the Montana Department of Transportation (MDT), has operated a crest-stage gage (CSG) network in Montana to collect peak-flow data since 1955. The CSG network is vital to collecting peak-flow data on small drainage basins that typically are not addressed by continuous streamflow...
The influence of subcolony-scale nesting habitat on the reproductive success of Adélie penguins
Annie E. Schmidt, Grant Ballard, Amélie Lescroël, Katie M. Dugger, Dennis Jongsomjit, Megan L. Elrod, David G. Ainley
2021, Scientific Reports (11)
Group-size variation is common in colonially breeding species, including seabirds, whose breeding colonies can vary in size by several orders of magnitude. Seabirds are some of the most threatened marine taxa and understanding the drivers of colony size variation is more important than ever. Reproductive success is an important demographic...
Why do my squiggles look funny? A gallery of compromised seismic signals
Adam T. Ringler, David B. Mason, G. Laske, Tyler Storm, M. Templeton
2021, Seismological Research Letters (92) 3873-3886
Seismic instruments are highly sensitive and capable of recording a large range of different Earth signals. The high sensitivity of these instruments also makes them prone to various failures. Although many failures are very obvious, such as a dead channel, there are other more subtle...
Comparison of aerial thermal infrared imagery and helicopter surveys of bison (Bison bison) in Grand Canyon National Park, USA
Jacob Daniel Hennig, Kathryn A. Schoenecker, Miranda Terwilliger, Gregory W Holm, Jeffrey L. Laake
2021, Sensors (21)
Aerial thermal infrared (TIR) surveys are an attractive option for estimating abundances of large mammals inhabiting extensive and heterogenous terrain. Compared to standard helicopter or fixed-wing aerial surveys, TIR flights can be conducted at higher altitudes translating into greater spatial coverage and increased observer safety; however, monetary costs are much...
Spectral damping scaling factors for horizontal components of ground motions from subduction earthquakes using NGA-Subduction data
Sanaz Rezaeian, L. Al Atik, N. M. Kuehn, N. A. Abrahamson, Y. Bozorgnia, S. Mazzoni, Kyle Withers, K. Campbell
2021, Earthquake Spectra (37) 2453-2492
This article develops global models of damping scaling factors (DSFs) for subduction zone earthquakes that are functions of the damping ratio, spectral period, earthquake magnitude, and distance. The Next Generation Attenuation for subduction earthquakes (NGA-Sub) project has developed the largest uniformly processed database of recorded ground motions...
U.S. Geological Survey science for the Wyoming Landscape Conservation Initiative—2018 annual report
Patrick J. Anderson, Cameron L. Aldridge, Jason S. Alexander, Timothy J. Assal, Steven Aulenbach, Zachary H. Bowen, Anna D. Chalfoun, Geneva W. Chong, Holly Copeland, David R. Edmunds, Steve Germaine, Tabitha A. Graves, Julie A. Heinrichs, Collin G. Homer, Christopher Huber, Aaron N. Johnston, Matthew J. Kauffman, Daniel J. Manier, Ryan R. McShane, Cheryl A. Eddy-Miller, Kirk A. Miller, Adrian P. Monroe, Michael S. O’Donnell, Anna Ortega, Annika W. Walters, Daniel J. Wieferich, Teal B. Wyckoff, Linda Zeigenfuss
2021, Open-File Report 2021-1067
The Wyoming Landscape Conservation Initiative (WLCI) was established in 2007 as a collaborative interagency partnership to develop and implement science-based conservation actions. During the past 11 years, partners from U.S. Geological Survey (USGS), State and Federal land management agencies, universities, and the public have collaborated to implement a long-term (more...
System characterization report on Planet’s Dove Classic
Minsu Kim, Seonkyung Park, Cody Anderson, Gregory L. Stensaas
2021, Open-File Report 2021-1030-C
Executive SummaryThis report addresses system characterization of Planet’s Dove Classic satellites and is part of a series of system characterization reports produced and delivered by the U.S. Geological Survey Earth Resources Observation and Science Cal/Val Center of Excellence. These reports present and detail the methodology and procedures for characterization; present...
Evaluation of factors affecting migration success of adult sockeye salmon (Oncorhynchus nerka) in the Yakima River, Washington, 2020
Tobias J. Kock, Amy C. Hansen, Scott D. Evans, Richard Visser, Brian Saluskin, Andrew Matala, Paul Hoffarth
2021, Open-File Report 2021-1075
A study was conducted during June–October 2020 to evaluate factors affecting the migration success of adult sockeye salmon (Oncorhynchus nerka) in the Yakima River, Washington. A total of 144 adult sockeye salmon were tagged and released during the study. Most fish (112 fish) were collected, tagged with passive integrated...
Water–rock interaction and the concentrations of major, trace, and rare earth elements in hydrocarbon-associated produced waters of the United States
Carleton R. Bern, Justin E. Birdwell, Aaron M. Jubb
2021, Environmental Science: Processes & Impacts (23) 1198-1219
Studies of co-produced waters from hydrocarbon extraction across multiple energy-producing basins have generally focused on major ions or a few select tracers, and studies that examine trace elements and involve laboratory experiments have generally been basin specific. Here, new perspective is sought through a broad analysis of concentration data...
Body size and digestive system shape resource selection by ungulates: A cross-taxa test of the forage maturation hypothesis
Saeideh Esmaeili, Brett R. Jesmer, Shannon E. Albeke, Ellen O. Aikens, Kathryn A. Schoenecker, Sarah R.B. King, Briana Abrahms, Buuveibaatar Bayarbaatar, Jeffrey L. Beck, Randall Boone, Francesca Cagnacci, Simon Chamaillé-Jammes, Buyanaa Chimeddorj, Paul C. Cross, Nandintsetseg Dejid, Jagdag Enkhbyar, Ilya Fischhoff, Adam T. Ford, Kate Jenks, Mahmoud-Reza Hemami, Jacob D. Hennig, Takehiko Y. Ito, Petra Kaczensky, Matthew J. Kauffman, John D. C. Linnell, Badamjav Lkhagvasuren, John F. McEvoy, Joerg Melzheimer, Jerod A. Merkle, Thomas Mueller, Jeff Muntifering, Atle Mysterud, Kirk A. Olson, Manuela Panzacchi, John Payne, Luca Pedrotti, Geir R. Rauset, Daniel I. Rubenstein, Hall Sawyer, John D. Scasta, Johannes Signer, Melissa Songer, Jared A. Stabach, Seth Stapleton, Olav Strand, Siva R. Sundaresan, Dorj Usukhjargal, Ganbold Uuganbayar, John Fryxell, Jacob R. Goheen
2021, Ecology Letters (24) 2178-2191
The forage maturation hypothesis (FMH) states that energy intake for ungulates is maximised when forage biomass is at intermediate levels. Nevertheless, metabolic allometry and different digestive systems suggest that resource selection should vary across ungulate species. By combining GPS relocations with remotely sensed data on forage...
Modeling the bioavailability of nickel and zinc to Ceriodaphnia dubia and Neocloeon triangulifer in toxicity tests with Natural Waters
John M. Besser, Chris D. Ivey, Jeffery A. Steevens, Danielle M. Cleveland, David J. Soucek, Amy Dickinson, Eric J. Van Genderen, Adam C. Ryan, Chris E. Schlekat, Emily R. Garman, Elizabeth Middleton, Robert C. Santore
2021, Environmental Toxicology and Chemistry (40) 3049-3062
We studied biotic ligand model (BLM) predictions of toxicity of nickel (Ni) and zinc (Zn) in natural waters from Illinois and Minnesota USA which had combinations of pH, hardness, and dissolved organic carbon (DOC) more extreme than 99.7% of waters in a nationwide database. We conducted 7-d chronic tests with Ceriodaphnia...
Hydrogeology of the Susquehanna River valley-fill aquifer system in the towns of Conklin and Kirkwood, Broome County, New York
John G. Van Hoesen, Paul M. Heisig, Shannon R. Fisher
2021, Scientific Investigations Report 2021-5026
The hydrogeology of the Susquehanna River valley-fill aquifer system and adjacent areas in south-central Broome County, New York, was investigated in cooperation with the New York State Department of Environmental Conservation. The study area encompasses roughly 55.5 square miles and includes the towns of Conklin and Kirkwood. Multiple small, perhaps...
Managing nonperennial headwater streams in temperate forests of the United States
Stephanie K. Kampf, Kathleen Dwyer, Matthew P. Fairchild, Jason B. Dunham, Craig D. Snyder, Kristin L. Jaeger, Charles H. Luce, John C. Hammond, Codie Wilson, Margaret Zimmer, Marielle Sidell
2021, Forest Ecology and Management (497)
Forest management guidelines are designed to protect water quality from unintended effects of land use changes such as timber harvest, mining, or forest road construction. Although streams that periodically cease to flow (nonperennial) drain the majority of forested areas, these streams are not consistently included in forest management guidelines. This...
The products of primary magma fragmentation finally revealed by pumice agglomerates
Thomas Giachetti, Kathy Trafton, Joshua Wiejaczka, James E. Gardner, James M. Watkins, Tom Shea, Heather M. Wright
2021, Geology (49) 1307-1311
Following rapid decompression in the conduit of a volcano, magma breaks into ash- to block-sized fragments, powering explosive sub-Plinian and Plinian eruptions that may generate destructive pyroclastic falls and flows. It is thus crucial to assess how magma breaks up into fragments. This...
Response to Gard et al.'s (2021) Comments on the Critical Review “Polychlorinated Biphenyl Tissue-Concentration Thresholds for Survival, Growth, and Reproduction in Fish”
Jason P. Berninger, Donald E. Tillitt
2021, Environmental Toxicology and Chemistry (8) 2098-2109
This response is offered to the critique by Gard et al. (2021) of our meta-analysis of polychlorinated biphenyl (PCB)-induced toxicity data in fish (Berninger and Tillitt 2019). Gard et al. (2021) offered numerous comments, the most substantive suggesting that 1) we should have added no-observable–adverse effect residue (NOAER) data from additional...
Habitat selection by wolves and mountain lions during summer in western Montana
Michael S. Mitchell, Collin J. Peterson, Nicholas J. DeCesare, Chad J. Bishop, Sarah S. Sells
2021, PLoS ONE (16)
In the Northern Rockies of the United States, predators like wolves (Canis lupus) and mountain lions (Puma concolor) have been implicated in fluctuations or declines in populations of game species like elk (Cervus canadensis) and mule deer (Odocoileus hemionus). In particular, local distributions of these predators...
Evaluation of a two-season banding program to estimate and model migratory bird survival
Patrick K. Devers, Robert L. Emmet, G. Scott Boomer, Guthrie S. Zimmerman, J. Andrew Royle
2021, Ecological Applications (31)
The management of North American waterfowl is predicated on long-term, continental scale banding implemented prior to the hunting season (i.e., July–September) and subsequent reporting of bands recovered by hunters. However, single-season banding and encounter operations have a number of characteristics that limit their application to estimating demographic rates and evaluating...
Is the grass always greener? Land surface phenology reveals differences in peak and season-long vegetation productivity responses to climate and management
David J. A. Wood, Scott Powell, Paul C. Stoy, Lindsey Thurman, Erik A. Beever
2021, Ecology and Evolution (11) 11168-11199
Vegetation phenology—the seasonal timing and duration of vegetative phases—is controlled by spatiotemporally variable contributions of climatic and environmental factors plus additional potential influence from human management. We used land surface phenology derived from the Advanced Very High Resolution Radiometer and climate data to examine variability in...
Water resources of Grant Parish, Louisiana
Chid J. Murphy, Vincent E. White
2021, Fact Sheet 2020-3064
Information concerning the availability, use, and quality of water in Grant Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, about 5.43 million...
Response of forage plants to alteration of temperature and spring thaw date: Implications for geese in a warming Arctic
Paul L. Flint, Brandt W. Meixell
2021, Ecosphere (12)
Changes in summer temperatures in Arctic Alaska have led to longer and warmer growing seasons over the last three decades. Corresponding with these changes in climate, the abundance and distributions of geese have increased and expanded over the same period. We used an experimental approach to assess the response of...
