Publications
Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS. Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.
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Adult mosquito and butterfly exposure to permethrin and relative risk following ULV sprays from a truck-mounted sprayer
Ground applications of adulticides via a specialized truck-mounted sprayer are one of the most common practices for control of flying adult mosquitoes. Aerosols released to drift through a targeted area persist in the air column to contact and kill flying mosquitoes, but may also drift into adjacent areas not targeted by the applications where it may affect nontarget insects such as imperiled butt
Authors
Timothy Bargar, Yongxing Jiang
Differential heat shock protein responses in two species of Pacific salmon and their utility in identifying heat stress
Rapid and accelerating warming of salmon habitat has the potential to lower productivity of Pacific salmon (Oncorhynchus species) populations. Heat stress biomarkers can indicate where warming is most likely affecting fish populations; however, we often lack clear classifications that separate individuals with and without heat stress needed to make these tools operational. We conducted a heat expo
Authors
Vanessa R. von Biela, Amy M. Regish, Lizabeth Bowen, Ashley E. Stanek, Shannon C. Waters, Michael P. Carey, Christian E. Zimmerman, Jonathon Gerken, Daniel Rinella, Stephen D. McCormick
Oil and gas reclamation—Operations, monitoring methods, and standards
This publication provides broad guidance for surface management of oil and gas development with a focus on promoting successful reclamation. Successful reclamation depends on sound best management practices, clear standards and expectations, defensible monitoring for effectiveness, and management of production facilities to minimize surface disturbance. This publication provides specific guideline
Authors
Randi C. Lupardus, Janna Simonsen, Gordon Toevs, Barbara Sterling, Zachary H. Bowen, Zoe Davidson, Steve E. Hanser, Emily Kachergis, Alexander Laurence-Traynor, Nika Lepak, Rebecca K. Mann, Aleta Nafus, David S. Pilliod, Michael C. Duniway
Competition between dissolved organic matter and freshwater plankton control methylmercury isotope fractionation during uptake and photochemical demethylation
Isotope fractionation related to photochemical reactions and planktonic uptake at the base of the food web is a major uncertainty in the biological application of mercury (Hg) stable isotopes. In freshwater systems, it is unclear how competitive interactions among methylmercury (MeHg), dissolved organic matter (DOM), and phytoplankton govern the magnitude of mass-dependent and mass-independent fra
Authors
Grace Jane Armstrong, Sarah E. Janssen, Brett A. Poulin, Michael T. Tate, David P. Krabbenhoft, James P. Hurley
Hyperspectral (VNIR-SWIR) analysis of roll front uranium host rocks and industrial minerals from Karnes and Live Oak Counties, Texas Coastal Plain
VNIR-SWIR (400–2500 nm) reflectance measurements were made on the surfaces of various cores, cuttings and sample splits of sedimentary rocks from the Tertiary Jackson Group, and Catahoula, Oakville and Goliad Formations. These rocks vary in composition and texture from mudstone and claystone to sandstone and are known host rocks for roll front uranium occurrences in Karnes and Live Oak Counties, T
Authors
Bernard E. Hubbard, Tanya J. Gallegos, Victoria G. Stengel, Todd M. Hoefen, Raymond F. Kokaly, Brent Elliott
Erratum to an evaluation of the timing accuracy of global and regional seismic stations and networks
No abstract available.
Authors
Yihong Yang, Xiadong Song, Adam T. Ringler
Chromosome-level genome assembly of the blacktail brush lizard, Urosaurus nigricaudus, reveals dosage compensation in an endemic lizard
Urosaurus nigricaudus is a phrynosomatid lizard endemic to the Baja California Peninsula in Mexico. This work presents a chromosome-level genome assembly and annotation from a male individual. We used PacBio long reads and HiRise scaffolding to generate a high-quality genomic assembly of 1.87 Gb distributed in 327 scaffolds, with an N50 of 279 Mb and an L50 of 3. Approximately 98.4% of the genome
Authors
Elizabeth Davalos-Dehullu, Sarah M. Baty, Robert N. Fisher, Peter A. Scott, Greer A. Dolby, Adrian Munguia-Vega, Diego Cortez
Reservoir stratification modulates the influence of impoundments on fish mercury concentrations along an arid land river system
Impoundment is among the most common hydrologic alterations with impacts on aquatic ecosystems that can include effects on mercury (Hg) cycling. However, landscape-scale differences in Hg bioaccumulation between reservoirs and other habitats are not well characterized nor are the processes driving these differences. We examined total Hg (THg) concentrations of Smallmouth Bass (Micropterus dolomieu
Authors
James Willacker, Collin Eagles-Smith, Jim Chandler, Jesse Naymik, Ralph Myers, David P. Krabbenhoft
A review of natural and managed revegetation responses in two de-watered reservoirs after large dam removals on the Elwha River, Washington, USA
Large dam removals are increasing in frequency and the response of natural and managed revegetation is a critical consideration for managed restoration of dewatered reservoir landscapes post dam removal. The removal of two large dams on the Elwha River in 2011-2014 provides insight into reservoir revegetation. We review literature and datasets from 2012 through 2018, 1-6 years since reservoir dewa
Authors
Joshua Chenoweth, Patrick B. Shafroth, Rebecca L. Brown, James M. Helfield, Jenise M. Bauman, Sara Cendejas-Zarelli, Chhaya M. Werner, Jarrett L. Schuster, Olivia A. Morgan
Evaluation of anticoagulant rodenticide sensitivity by examining in vivo and in vitro responses in avian species, focusing on raptors
Anticoagulant rodenticides (ARs) are used to control pest rodent species but can result in secondary poisoning of non-target animals, especially raptors. In the present study, differences in AR sensitivity among avian species were evaluated by comparing in vivo warfarin pharmacokinetics and effects, measuring cytochrome P450s (CYPs) expression involved in AR metabolism, and conducting in vitro inh
Authors
Kraisiri Khidkhan, Fuyu Yasuhira, Aksorn Saengtienchai, Chaiyan Kasorndorkbua, Ratiwan Sitdhibutr, Kohei Ogasawara, Hikaru Adachi, Yukiko Watanabe, Keisuke Saito, Hidefumi Sakai, Kazuo Horikoshi, Hajime Suzuki, Yusuke K. Kawai, Kazuki Takeda, Yared B. Yohannes, Yoshinori Ikenaka, Barnett A. Rattner, Mayumi Ishizuka, Shouta M.M. Nakayama
Selection of microhabitats, plants, and plant parts eaten by a threatened tortoise: Observations during a superbloom
Populations of the threatened desert tortoise (Gopherus agassizii) continue to decline throughout the geographic range, in part because of degraded and fragmented habitats in the Mojave and western Sonoran deserts. The species is herbivorous and highly selective in choice of plant species. To increase options for recovery, we analyzed behaviors, patterns of movements while foraging, and parts of p
Authors
W. Bryan Jennings, Kristin H. Berry
On the relationship between aquatic CO2 concentration and ecosystem fluxes in some of the world’s key wetland types
To understand patterns in CO2 partial pressure (PCO2) over time in wetlands’ surface water and porewater, we examined the relationship between PCO2 and land–atmosphere flux of CO2 at the ecosystem scale at 22 Northern Hemisphere wetland sites synthesized through an open call. Sites spanned 6 major wetland types (tidal, alpine, fen, bog, marsh, and prairie pothole/karst), 7 Köppen climates, and 16
Authors
Jessica L. Richardson, Ankur R. Desai, Jonathon Thom, Kim Lindgren, Hjalmar Laudon, Matthias Peichl, Mats B. Nilsson, Audrey Campeau, Jarvi Jarveoja, Peter Hawman, Deepak R. Mishra, Dontrece Smith, Brenda D'Acunha, Sara H. Knox, Darian Ng, Mark S. Johnson, Joshua M. Blackstock, Sparkle L. Malone, Steve F. Oberbauer, Matteo Detto, Kimberly Wickland, Inke Forbrich, Nathaniel B Weston, Jacqueline K.Y. Hung, Colin W. Edgar, Eugenie S. Euskirchen, Syndonia Bret-Harte, Jason Dobkowski, George Kling, Evan S. Kane, Pascal Badiou, Matthew Bogard, Gil Bohrer, Thomas O'Halloran, Jonny Ritson, Ariane Arias-Otriz, Dennis Baldocchi, Patty Oikawa, Julie Shahan, Maiyah Matsumura