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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Sinoatrial contracaeciasis in Johnny Darters (Etheostoma nigrum) and Plains Topminnow (Fundulus sciadicus) from the South Platte drainage, Colorado Sinoatrial contracaeciasis in Johnny Darters (Etheostoma nigrum) and Plains Topminnow (Fundulus sciadicus) from the South Platte drainage, Colorado
Intra-sinoatrial nematodes were incidentally recognized in wild-caught Colorado Johnny Darters (Etheostoma nigrum, JD) in 2020–2021 and in Colorado Plains Topminnow (Fundulus sciadicus, PTM) in 2023-2024. PTM and JD were evaluated histologically. Nematodes dissected from PTM were used for morphologic evaluation and molecular identification. The first and second internal transcribed...
Authors
Paula Andrea Schaffer, Ashley K. McGrew, Jessica Henley, Catherine M. Adams, Dana L. Winkelman, Ryan M. Fitzpatrick, Pete Cadmus
Environmental characteristics of select managed ponds in the Sacramento–San Joaquin Delta—Implications for native fish conservation and research Environmental characteristics of select managed ponds in the Sacramento–San Joaquin Delta—Implications for native fish conservation and research
The use of wetlands to support native fish research and conservation efforts in the Sacramento–San Joaquin Delta (Delta) of California is a growing priority. The purpose of our study was to examine the physiochemical and biological characteristics of select managed ponds in the Delta to determine if they would be suitable habitats for research involving the conservation of delta smelt...
Authors
Frederick V. Feyrer, Shawn Acuña, Jordan M. Buxton, Ethan R. Enos, Michelle L. Hladik, James Orlando, Matthew J. Young
Development of regression equations to estimate flow durations, low-flow frequencies, and mean flows at ungaged stream sites in Connecticut using data through water year 2022 Development of regression equations to estimate flow durations, low-flow frequencies, and mean flows at ungaged stream sites in Connecticut using data through water year 2022
To aid Federal and State regulatory agencies in the effective management of water resources, the U.S. Geological Survey, in cooperation with the Connecticut Department of Energy and Environmental Protection and the Connecticut Department of Transportation, updated flow statistics for 118 streamgages and developed 47 regression equations to estimate selected flow duration, low flow, and...
Authors
Elizabeth A. Ahearn, Gardner C. Bent
Bright spots for advancing ecological understanding and conservation decision-making Bright spots for advancing ecological understanding and conservation decision-making
A lot can be learned by studying bright spots—defined as unexpected positive outcomes. In fields like public health, education, and oncology, identifying factors behind bright spots reveals previously unknown drivers of success that can be replicated elsewhere. This concept is being applied in conservation but is hampered by variations in definitions of bright spots and confusion with...
Authors
Holly Susan Embke, Zachary S. Feiner, Gretchen Hansen, Daniel A. Isermann, Olaf P. Jensen, Christopher I. Rounds, Quinn Smith, M. Jake Vander Zanden
Animal trajectory imputation and uncertainty quantification via deep learning Animal trajectory imputation and uncertainty quantification via deep learning
Imputing missing data in animal trajectories is crucial for understanding animal movements during unobserved periods. However, the traditional methods, such as linear interpolation and the continuous-time correlated random walk model, are often inadequate to capture the complexity of animal movements. Here, we develop a deep learning approach to animal trajectory imputation by a...
Authors
Kehui Yao, Ian P. McGahan, Jun Zhu, Daniel J. Storm, Daniel P. Walsh
Public support for puma reintroduction in the eastern United States Public support for puma reintroduction in the eastern United States
Pumas (Puma concolor) are among the species identified as having the potential to enhance ecosystem function. Previous research highlights sufficient ecological habitat to support pumas in the eastern United States; however, their reintroduction requires social and institutional support as well. To this end, we conducted research to assess attitudes about puma reintroduction among key
Authors
L. Mark Elbroch, Jazmin Murphy, Shelby Carlson, John A. Vucetich, Richard Eugene Waggaman Berl, Lexi Galiardi, Shelby Perry, Tom Butler, Neil H. Carter, Joseph W. Hinton, Axel Moehrenschlager, Emily M. Carrollo, Rana Bayrakcismith, Jeremy T. Bruskotter
The 3D National Topography Model Call for Action—Part 2: The Next Generation 3D Elevation Program The 3D National Topography Model Call for Action—Part 2: The Next Generation 3D Elevation Program
The three-dimensional (3D) National Topography Model initiative to integrate elevation and hydrography data includes the next generation of hydrography data from the 3D Hydrography Program and the next generation of elevation data from the 3D Elevation Program (3DEP). The first-ever collection of light detection and ranging (lidar) data for the nation (IfSAR for Alaska) provides a...
Authors
Vicki Lukas, Larry Sugarbaker, Cindy A. Thatcher, Allyson L. Jason, Jason M. Stoker
Ecological acclimation: A framework to integrate fast and slow responses to climate change Ecological acclimation: A framework to integrate fast and slow responses to climate change
Ecological responses to climate change occur across vastly different time-scales, from minutes for physiological plasticity to decades or centuries for community turnover and evolutionary adaptation. Accurately predicting the range of ecosystem trajectories will require models that incorporate both fast processes that may keep pace with climate change and slower ones likely to lag behind...
Authors
Michael Stemkovski, Joey Bernhardt, Benjamin Wong Blonder, John B. Bradford, Kyra Clark-Wolf, Laura E. Dee, Margaret Evans, Virginia Iglesias, Loretta Johnson, Abigail J. Lynch, Sparkle Malone, Brooke Osborne, Melissa Pastore, Michael Paterson, Malin Pinsky, Christine R. Rollinson, Oliver Selmoni, Jason Venkiteswarnan, Anthony P. Walker, Nicole K. Ward, John B. Williams, Claire Zarakas, Peter B. Adler
Pathology, tissue distribution, and phylogenomic characterization of largemouth bass virus isolated from a wild smallmouth bass (Micropterus dolomieu) Pathology, tissue distribution, and phylogenomic characterization of largemouth bass virus isolated from a wild smallmouth bass (Micropterus dolomieu)
We performed a diagnostic disease investigation on a wild smallmouth bass (Micropterus dolomieu) with skin ulcers that was collected from Lake Oahe, South Dakota, following reports from anglers of multiple fish with similar lesions. Gross and histologic lesions of ulcerative dermatitis, myositis, and lymphocytolysis within the spleen and kidneys were consistent with largemouth bass virus...
Authors
Christine J.E. Haake, Thomas B. Waltzek, Chrissy D. Eckstrand, Nora Hickey, Joetta Lynn Reno, Rebecca M. Wolking, Preeyanan Sriwanayos, Jan Lovy, Elizabeth A. Renner, Kyle R. Taylor, Ryan Oliveira
Sustaining Namāēw (Lake Sturgeon): Partner-led climate adaptation for Indigenous fisheries in the Laurentian Great Lakes Sustaining Namāēw (Lake Sturgeon): Partner-led climate adaptation for Indigenous fisheries in the Laurentian Great Lakes
Namāēw (Menominee; Lake Sturgeon Acipenser fulvescens) have long supported Indigenous culture and food sovereignty but have declined by over 80% in the Laurentian Great Lakes, exacerbating their sensitivity to climate change. Following interest from Indigenous leaders, we initiated a partnership-driven effort to (1) assess climate effects and (2) develop potential adaptation options for...
Authors
Holly Susan Embke, Robert Croll, Hannah Panci, Aaron D. Shultz, Sara Smith, Nick Boygo, Marvin DeFoe, Jennifer Gauthier, Gary Michaud, Michael Waasegiizhig Price, Donald Reiter, Jason Schlender, Frank Zomer
Risks and rewards of pre-emergent herbicide (indaziflam) to defend core sagebrush-steppe ecosystems under suboptimal precipitation Risks and rewards of pre-emergent herbicide (indaziflam) to defend core sagebrush-steppe ecosystems under suboptimal precipitation
Protection of intact habitat from the spread of invasive plants is a global priority, especially where invaders alter wildfire occurrence. Invasion of perennial sagebrush-steppe ecosystems by cheatgrass and other fire-promoting exotic annual grasses (EAGs) is one of the most notorious examples of this problem. Protection and expansion of the remaining intact “core” sagebrush areas are...
Authors
Brynne Lazarus, Matthew Germino
Daily fluctuating flows affect riparian plant species distributions from local to regional scales Daily fluctuating flows affect riparian plant species distributions from local to regional scales
Aims The number of hydropower dams has grown globally over recent decades, with significant impacts on downstream riparian plant communities. Many of these dams generate daily fluctuating flows known as hydropeaking to meet sub-daily variation in energy demands. Hydropeaking can significantly impact riparian plant communities, with obligate riparian species tending to experience the...
Authors
Bradley J. Butterfield, Emily C. Palmquist