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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 65,000 articles authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Institutional barriers to actionable science: Perspectives from decision support tool creators Institutional barriers to actionable science: Perspectives from decision support tool creators
Scholars have identified a ‘usability gap’ between science and its ability to inform real-world decisions as well as a range of factors that facilitate or impede attempts to span the usability gap with information products. However, most attention has focused on barriers related to information users; much less research focuses on the unique institutional and organizational barriers...
Authors
Olivia Pearman, Amanda E. Cravens
Miniature temperature data loggers increase precision and reduce bias when estimating the daily survival rate for bird nests Miniature temperature data loggers increase precision and reduce bias when estimating the daily survival rate for bird nests
Demographic studies of many bird species are challenging because their nests are cryptic, resulting in few nests being found. To maximize statistical power, methods are needed that minimize disturbance while yielding as much information per nest as possible. One way to meet these objectives is to use miniature thermal data loggers to precisely date nest fates. Our objectives, therefore...
Authors
Matthew D. Stephenson, Robert W. Klaver, Lisa A. Schulte, Jarad Niemi
Multi-proxy record of Holocene paleoenvironmental conditions from Yellowstone Lake, Wyoming, USA Multi-proxy record of Holocene paleoenvironmental conditions from Yellowstone Lake, Wyoming, USA
A composite 11.82 m-long (9876–-67 cal yr BP) sediment record from Yellowstone Lake, Wyoming was analyzed using a robust set of biological and geochemical proxies to investigate the paleoenvironmental evolution of the lake and its catchment in response to long-term climate forcing. Oxygen isotopes from diatom frustules were analyzed to reconstruct Holocene climate changes, and pollen...
Authors
Sabrina R. Brown, Rosine Cartier, Christopher Schiller, Petra Zahajski, Sherilyn Fritz, Lisa Ann Morgan Morzel, Cathy Whitlock, Daniel J. Conley, Jack H. Lacy, Melanie J. Leng, Wayne (Pat) Shanks
Translational science education through citizen science Translational science education through citizen science
Guided by the six elements of Translational Ecology (TE; i.e., decision-framing, collaboration, engagement, commitment, process, and communication), we showcase the first explicit example of a Translational Science Education (TSE) effort in the coastal redwood ecosystem of Humboldt County, CA. Using iNaturalist, a flexible and free citizen science/crowdsourcing app, we worked with...
Authors
Allison M. Young, Elizabeth F. van Mantgem, Alexis Garretson, Christine Noel, Toni Lyn Morelli
Multimineral petrophysics of thermally immature Eagle Ford Group and Cretaceous mudstones, U.S. Geological Survey Gulf Coast 1 research wellbore in central Texas Multimineral petrophysics of thermally immature Eagle Ford Group and Cretaceous mudstones, U.S. Geological Survey Gulf Coast 1 research wellbore in central Texas
Traditional petrophysical methods to evaluate organic richness and mineralogy using gamma-ray and resistivity log responses are not diagnostic in source rocks. We have developed a deterministic, nonproprietary method to quantify formation variability in total organic carbon (TOC) and three key mudrock mineralogical components of nonhydrocarbon-bearing source rock strata of the Eagle Ford...
Authors
Lauri A. Burke, Justin E. Birdwell, Stanley T. Paxton
Tools for increasing visual encounter probabilities for invasive species removal: A case study of brown treesnakes Tools for increasing visual encounter probabilities for invasive species removal: A case study of brown treesnakes
Early detection and rapid response (EDRR) are essential to identifying and decisively responding to the introduction or spread of an invasive species, thus avoiding population establishment and improving the probability of achieving eradication. However, detection can be challenging at the onset of a species invasion as low population densities can reduce detection probability and...
Authors
Staci M. Amburgey, Amy A. Yackel Adams, Beth Gardner, Bjorn Lardner, Sarah J. Converse
Factors influencing the post-release movements of translocated fishers: Implications for translocation success Factors influencing the post-release movements of translocated fishers: Implications for translocation success
Long distance, post-release movements of translocated wildlife can be a key factor limiting translocation success. Yet, for many species, we have little or no understanding of factors that influence post-release movements. Translocations have been important for recovering fisher Pekania pennanti populations across the southern portion of their North American range. However, little is...
Authors
Jeffrey C. Lewis, Patricia J. Happe, Kurt Jenkins, David J. Manson
A scalable model-independent iterative data assimilation tool for sequential and batch estimation of high dimensional model parameters and states A scalable model-independent iterative data assimilation tool for sequential and batch estimation of high dimensional model parameters and states
Ensemble-based data assimilation (DA) methods have displayed strong potential to improve model state and parameter estimation across several disciplines due to their computational efficiency, scalability, and ability to estimate uncertainty in the dynamic states and the parameters. However, a barrier to adoption of ensemble DA methods remains. Namely, there is currently a lack of...
Authors
Ayman H. Alzraiee, Jeremy T. White, Matthew Knowling, Randall J. Hunt, Michael N. Fienen
A review of sea lamprey dispersal and population structure in the Great Lakes and the implications for control A review of sea lamprey dispersal and population structure in the Great Lakes and the implications for control
Understanding the population structure of invasive sea lamprey (Petromyzon marinus) in the Great Lakes basin is essential for an effective control program. We review knowledge of lake connectivity, dispersal during the parasitic stage, and results from phenotypic, demographic, and genetic studies to evaluate how sea lamprey populations are structured. There is no evidence for...
Authors
Margaret F. Docker, Gale Bravener, Colin J Garroway, Peter J. Hrodey, John B. Hume, Nicholas S. Johnson, Sean A. Lewandoski, Jessie L Ogden, Emily C Zollweg-Horan
Advances in the use of lampricides to control sea lampreys in the Laurentian Great Lakes, 2000–2019 Advances in the use of lampricides to control sea lampreys in the Laurentian Great Lakes, 2000–2019
The periodic application of chemical lampricides that selectively kill larval sea lampreys (Petromyzon marinus) in their nursery habitats remains a primary component of the Great Lakes Fishery Commission’s (GLFC) Sea Lamprey Control Program in the Laurentian Great Lakes. Lampricides include 3-trifluoromethyl-4-nitrophenol (TFM) and niclosamide, the 2-aminoethanol salt of 2′, 5-dichloro-4...
Authors
W Paul Sullivan, Dale P. Burkett, Michael A. Boogaard, Lori A. Criger, Christopher Freiberger, Terrance Hubert, Keith Leistner, Bruce J. Morrison, Shawn M Nowicki, Shawn Robertson, Alan Rowlinson, Barry Scotland, Timothy B Sullivan
Lake sturgeon (Acipenser fulvescens) annual adult survival estimated from acoustic telemetry Lake sturgeon (Acipenser fulvescens) annual adult survival estimated from acoustic telemetry
Survival of adult fishes is critical to the conservation and management of wild populations, particularly for long-lived, slow to reproduce species. Most sturgeon species are of conservation concern, but their long lifespans and large ranges have made estimation of adult survival rates challenging. In this study, acoustic telemetry was used to track 205 lake sturgeon (Acipenser...
Authors
Scott F. Colborne, Todd A. Hayden, Christopher M. Holbrook, Charles C. Krueger, Darryl W. Hondorp
Slimy sculpin depth shifts and habitat squeeze following the round goby invasion in the Laurentian Great Lakes Slimy sculpin depth shifts and habitat squeeze following the round goby invasion in the Laurentian Great Lakes
The collapse of Diporeia spp. and invasions of dreissenid mussels (zebra, Dreissena polymorpha; quagga, D. bugensis) and round goby (Neogobius melanostomus) have been associated with declines in abundance of native benthic fishes in the Great Lakes, including historically abundant slimy sculpin (Cottus cognatus). We hypothesized that as round goby colonized deeper habitat, slimy sculpin...
Authors
Shea L. Volkel, Kelly F. Robinson, David Bunnell, Michael J. Connerton, Jeremy P. Holden, Darryl W. Hondorp, Brian Weidel