Geophysical constraints on the crustal architecture of the transtensional Warm Springs Valley fault zone, northern Walker Lane, western Nevada, USA
Richard W. Briggs, William J. Stephenson, J.H. McBride, Jackson K. Odum, Nadine G. Reitman, Ryan D. Gold
2021, JGR Solid Earth (126)
The Walker Lane is a zone of distributed transtension where normal faults are overprinted by strike-slip motion. We use two newly-acquired high-resolution seismic reflection profiles and a reprocessed Consortium for Continental Reflection Profiling (COCORP) deep crustal reflection profile to assess the subsurface geometry of the Holocene-active, transtensional Warm Springs Valley...
Hydrogeology and simulation of groundwater flow in Columbia County, Wisconsin
Madeline Gotkowitz, Andrew T. Leaf, Steven M. Sellwood
2021, Report
This report describes the regional hydrogeology and groundwater resources of Columbia County, Wisconsin, and documents a regional groundwater flow model developed for the county. Regional hydrostratigraphic units include the unlithified aquifer, the upper bedrock aquifer, and the Elk Mound aquifer. The unlithified aquifer consists of deposits that range in composition from...
Mercury isotope fractionation by internal demethylation and biomineralization reactions in seabirds: Implications for environmental mercury science
Alain Manceau, Romain Brossier, Sarah E. Janssen, Tylor Rosera, David P. Krabbenhoft, Yves Cherel, Paco Bustamante, Brett Poulin
2021, Environmental Science and Technology (55) 13942-13952
A prerequisite for environmental and toxicological applications of mercury (Hg) stable isotopes in wildlife and humans is quantifying the isotopic fractionation of biological reactions. Here, we measured stable Hg isotope values of relevant tissues of giant petrels (Macronectes spp.). Isotopic data were interpreted...
Formation of miarolitic-class, segregation-type pegmatites in the Taishanmiao batholith, China: The role of pressure fluctuations and volatile exsolution during pegmatite formation in a closed, isochoric system
Yabin Yuan, Lowell Moore, Ryan J. McAleer, Shunda Yuan, Hegen Ouyang, Harvey E. Belkin, Jingwen Mao, Matthew D. Sublett, Robert J. Bodnar
2021, American Mineralogist (106) 1559-1573
The Taishanmiao granitic batholith, located in the Eastern Qinling Orogen in Henan Province, China, contains numerous small (mostly tens of centimeters in maximum dimension) bodies exhibiting textures and mineralogy characteristics of simple quartz and alkali feldspar pegmatites. Analysis of melt inclusions (MI) and fluid inclusions (FI) in pegmatitic quartz, combined...
Making research relevant: Sharing climate change research with rangeland advisors to transform results into drought resilience
Maude Dinan, Peter B. Adler, John B. Bradford, Mark Brunson, Emile Elias, Andrew J Felton, Christina Greene, Jeremy J. James, Katharine Suding, Eric Thacker
2021, Rangelands (43) 185-193
On the Ground• Public programs, strategies, and incentives to implement rangeland climate adaptation are more effective if they are tailored to local drought exposures, sensitivities, and adaptation opportunities. As such, local rangeland advisers who aid in climate adaptation are pivotal to the development of these resources.• We hosted a virtual...
Modeling distribution of endemic Bartram’s Bass Micropterus sp. cf. coosae: Disturbance and proximity to invasion source increase hybridization with invasive Alabama Bass
Brandon K. Peoples, Emily Judson, Tanya L. Darden, Daniel J. Farrae, Kevin Kubach, Jean Leitner, Mark C. Scott
2021, North American Journal of Fisheries Management (41) 1309-1321
“Bartram’s Bass” Micropterus sp. cf. coosae is endemic to the upper Savannah River basin of the southeastern United States and is threatened by hybridization with invasive Alabama Bass Micropterus henshalli. Bartram’s Bass have been functionally extirpated from reservoirs, and hybrid individuals have been detected in several tributaries. However, the extent of introgression in tributaries is...
Conceptual and numerical groundwater flow model of the Cedar River alluvial aquifer system with simulation of drought stress on groundwater availability near Cedar Rapids, Iowa, for 2011 through 2013
Adel E. Haj, Wonsook S. Ha, Lance R. Gruhn, Emilia L. Bristow, Amy M. Gahala, Joshua F. Valder, Carole D. Johnson, Eric A. White, Shelby P. Sterner
2021, Scientific Investigations Report 2021-5065
Between July 2011 and February 2013, the City of Cedar Rapids observed water level declines in their horizontal collector wells approaching 11 meters. As a result, pumping from these production wells had to be halted, and questions were raised about the reliability of the alluvial aquifer under future drought conditions....
Methods for estimating low-flow frequency statistics, mean monthly and annual flow, and flow-duration curves for ungaged locations in Kansas
Bradley S. Lukasz
2021, Scientific Investigations Report 2021-5100
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Marine ecotourism for small pelagics as a source of alternative income generating activities to fisheries in a tropical community
Christopher Cusack, Suresh Sethi, Aaron Rice, Joseph Warren, Rod Fujita, Jose Ingles, Jimely Flores, Edwina Garchitorena, Sheryll Mesa
2021, Biological Conservation (261)
Overharvest has led to marine ecosystem degradation and declining fishery catches in many tropical communities. To allow stocks to recover and provide increased flows of food and income, reductions in fishing effort are necessary. The development of Alternative Income Generating Activities can help to reduce the economic reliance of coastal...
Technical note—Relative variability of selected turbidity standards and sensors in use by the U.S. Geological Survey
Guy M. Foster, Lindsey R. King, John D. Jastram, John K. Joiner, Brian A. Pellerin, Jennifer L. Graham, Thomas J. Williams
2021, Open-File Report 2021-1009
The challenges associated with field measurements of turbidity are well known and result primarily from differences in reported values that depend on instrument design and the resulting need for reporting units that are specific to those designs. A critical challenge for making comparable turbidity measurements is the selection and use...
U.S. Geological Survey Great Lakes Science Forum—Summary of remaining data and science needs and next steps
Leon M. Carl, Jon Hortness, Russell M. Strach
2021, Open-File Report 2021-1096
A U.S. Geological Survey-led assessment of data gaps and science needs across the Great Lakes ecosystem indicated the following:• Expanded data collection or monitoring would provide basic ecosystem, social, and public health data to manage the Great Lakes system and to develop and test models and decision support tools.• New...
Seasonal diet and habitat use of large, introduced Rainbow Trout in an Ozark Highland stream
A. W. Rodger, S. L. Wolf, T. A. Starks, J. P. Burroughs, Shannon K. Brewer
2021, North American Journal of Fisheries Management (41) 1764-1780
Stocking of Rainbow Trout Oncorhynchus mykiss commonly provides seasonal or mitigation fisheries; however, these fish are usually small and ecosystem effects are spatially or temporally limited. Yet agencies receive requests to stock Rainbow Trout in relatively natural settings (i.e., not tailwater or mitigation fisheries), where introductions may have greater ecosystem consequences. The...
Livestock grazing, climatic variation, and breeding phenology jointly shape disease dynamics and survival in a wild amphibian
Gabriel M. Barrile, Annika W. Walters, Anna D. Chalfoun
2021, Biological Conservation (261)
Wildlife responses to infectious disease can be influenced by environmental stressors that alter host-pathogen dynamics. We investigated how livestock grazing, climatic variation, and breeding phenology influence disease prevalence and annual survival in boreal toad (Anaxyrus boreas boreas) populations challenged with Batrachochytrium dendrobatidis (Bd), a fungal pathogen implicated in global amphibian declines. We...
Laboratory infection rates and associated mortality of juvenile Chinook Salmon (Oncorhynchus tshawytscha) from parasitic copepod (Salmincola californiensis)
Travis Neal, Michael L. Kent, Justin Sanders, Carl B. Schreck, James Peterson
2021, Journal of Fish Diseases (44) 1423-1434
Pacific salmon (Oncorhynchus spp.) rearing in lakes and reservoirs above dams have been known to become heavily infected with an ectoparasitic copepod (Salmincola californiensis). Little is known about the factors that affect the parasite infection prevalence and intensity. However, previous research suggests that the parasite may negatively affect the fitness and...
Intelligent monitoring system for real-time geologic storage, optimization, and reservoir management
J. Ole Kaven
2021, Technical Report DOE-USGS-FE0026517-1
The objective of the subtask was to develop a near-real-time monitoring system for seismic data at the Decatur, IL, geologic carbon sequestration (GCS) site and specifically include fiber-optic cable derived distributed acoustic signal (DAS) data in the process. Owing to the large volumes of data, we opted to utilize existing...
Evaluating the role of active management in mature Douglas-fir (Pseudotsuga menziesii) stands for songbird conservation
Neil Williams, Joan Hagar, Matthew Powers
2021, Forest Ecology and Management (502)
Forest birds, particularly those associated with late-successional forests, are of widespread conservation interest. Although birds are among the more widely studied taxa of forest wildlife, relatively few studies have examined the long-term effects of active management (i.e., intentional stand density reduction) on the forest bird assemblage. This is an important...
Accuracy of flowmeters measuring horizontal flow in fractured-rock simulators
E. Randall Bayless
2021, Groundwater Monitoring & Remediation (41) 50-61
Laboratory evaluations of flowmeter response to flow in fractured-rock simulators are needed to improve understanding of data collected in field settings. The ability of flowmeters to accurately measure the velocity and direction of water flowing between parallel plates was used as a surrogate for instrument response...
Floodplain forest tree seedling response to variation in flood timing and duration
W.A. Kroschel, Sammy L. King
2021, Forest Ecology and Management (502)
The regeneration process is a sensitive period within life cycles of floodplain tree species and can strongly influence forest community composition. Yet, fundamental information remains limited on the relationship between regeneration processes and the flood disturbances that, together, construct floodplain forest landscapes. In a controlled greenhouse experiment we tested the effects of complete submergence on six...
Strategic considerations for invasive species managers in the utilization of environmental DNA (eDNA): Steps for incorporating this powerful surveillance tool
Jeffrey Morisette, Stanley Burgiel, Kelsey Brantley, Wesley M. Daniel, John Darling, Jeanette Davis, Thomas W. Franklin, Keith Gaddis, Margaret Hunter, Richard Lance, Tracy Leskey, Yale Passamaneck, Antoinette J. Piaggio, Brian Rector, Adam Sepulveda, Melissa Smith, Carol A Stepien, Taylor Wilcox
2021, Management of Biological Invasions (12) 747-775
Invasive species surveillance programs can utilize environmental DNA sampling and analysis to provide information on the presence of invasive species. Wider utilization of eDNA techniques for invasive species surveillance may be warranted. This paper covers topics directed towards invasive species managers and eDNA practitioners working at the intersection of eDNA...
Fire refugia in old-growth forests: Predicting habitat persistence to support land management in an era of rapid global change
Cameron E. Naficy, Garrett W. Meigs, Matt J. Gregory, Ray Davis, David M. Bell, Katie Dugger, J. David Wiens, Meg A. Krawchuk
2021, Report
Recent stand-replacing wildfires in late-successional and old-growth (LSOG) forests have increased land manager interest in fire refugia, which could provide vital habitat for threatened and endangered species during a time of rapid change. The overall goal of this project was to model, map, and share information essential for the conservation...
Optical properties of water for prediction of wastewater contamination, human-associated bacteria, and fecal indicator bacteria in surface water at three watershed scales
Steven R. Corsi, Laura A. DeCicco, Angela Hansen, Peter L. Lenaker, Brian A. Bergamaschi, Brian A. Pellerin, Debra Dila, Melinda Bootsma, Susan Spencer, Mark A. Borchardt, Sandra L. McLellan
2021, Environmental Science and Technology (55) 13770-13782
Relations between spectral absorbance and fluorescence properties of water and human-associated and fecal indicator bacteria were developed for facilitating field sensor applications to estimate wastewater contamination in waterways. Leaking wastewater conveyance infrastructure commonly contaminates receiving waters. Methods to quantify such contamination can be time consuming, expensive, and often nonspecific. Human-associated...
Using the California Waterfowl Tracker to assess proximity of waterfowl to commercial poultry in the Central Valley of California
Sarai Acosta, Todd Kelman, Shane Feirer, Elliott Matchett, Jaclyn A. Smolinsky, Maurice E. Pitesky, Jeffrey J. Buler
2021, Avian Diseases (65) 483-492
Migratory waterfowl are the primary reservoir of avian influenza viruses (AIV) which can be spread to commercial poultry. Surveillance efforts that track the location and abundance of wild waterfowl and link those data to inform assessments of risk and sampling for AIV currently do not exist. To assist surveillance and...
Genetic analysis of red lionfish Pterois volitans from Florida, USA, leads to alternative North Atlantic introduction scenarios
Margaret Hunter, Caitlin Beaver, Nathan A. Johnson, Eleanor K. Bors, Antonio A. Mignucci-Giannoni, Brian R. Silliman, Dayne Buddo, Linda Searle, Edgardo Diaz-Ferguson
2021, Marine Ecology Progress Series (675) 133-151
The red lionfish Pterois volitans is a successful invasive predator across the western North Atlantic, Caribbean, and Gulf of Mexico. The southeast coast of Florida (USA) has been identified as the original introduction location, but genetic analyses including Florida lionfish have yet to investigate introduction scenarios. Here, we assessed the potential lionfish...
Louisiana Trustee Implementation Group monitoring and adaptive management strategy (LA TIG MAM Strategy)
Margaret Lamont, Ann Hijuelos, Leah Dale, Gregory Steyer, Megan K. La Peyre, Rick Raynie, Syed M. Khalil, Angelina M. Freeman, Theryn Henkel, Summer Langlois, Darin L. Lee, David Lindquist, Erin Chandler, Sarah Clardy, Jon Hemming, Jeffrey S. Gleason, David A. Hewitt, Dianne Ingram, Melissa Carle, Mel Landry, Courtney Schupp, Laura Engleby, Elizabeth H. Fetherston-Resch, Erin Fougeres, Julia Goss, Rebeccah Hazelkorn, Jenny Litz, Teri Rowles, Barbara Schroeder, Eric Weissberger, Sara Wissmann, Ian Zink, Philip Lee, Danny Wiegand, Robert Cook, Britt Dean, James Drake, Raul Gutierrez, Troy Pierce, Mike Schaub, Tami Sundquist, Joseph Ziobro, Benjamin Battle, Ron Howard, Jon Morton, Ann Howard, Todd Baker, Brady Carter, Jon Wiebe, Amanda Vincent, Tim J. B. Carruthers, Alyssa Dausman, Erin P. Kiskaddon, editor(s)
2021, Report
The purpose of the Louisiana Trustee Implementation Group (LA TIG) Monitoring and Adaptive Management (MAM) Strategy is to outline an approach for the LA TIG to prioritize MAM activities in Louisiana for effective and efficient evaluation of the restoration of resources injured by the Deepwater Horizon (DWH) oil spill. Working...
Analysis of body condition indices reveals different ecotypes of the Antillean manatee
D. N. Castelblanco-Martinez, Daniel Slone, S. S. Landeo-Yauri, E. A. Ramos, Anmari Álvarez-Alemán, Fernanda L. N. Attademo, Cathy A. Beck, Robert K. Bonde, Susan M. Butler, L. J. Cabrias-Contreras, D. Caicedo-Herrera, Jamal Galves, I. V. Gomez-Camelo, D. Gonzalez-Socoloske, D. Jiménez-Domínguez, Fabia O. Luna, Y. Mona-Sanabria, J. B. Morales-Vela, L. D. Olivera-Gomez, Janneth Adriana Padilla-Saldivar, James A. Powell, James P. Reid, G. Rieucau, Antonio A. Mignucci-Gianonni
2021, Scientific Reports (11)
Assessing the body condition of wild animals is necessary to monitor the health of the population and is critical to defining a framework for conservation actions. Body condition indices (BCIs) are a non-invasive and relatively simple means to assess the health of individual animals, useful for addressing a wide variety...
