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The late Pleistocene Sacarosa tephra-fall deposit, Misti Volcano, Arequipa, Peru: Its magma, eruption, and implications for past and future activity The late Pleistocene Sacarosa tephra-fall deposit, Misti Volcano, Arequipa, Peru: Its magma, eruption, and implications for past and future activity
Between 38.5 ka cal BP and 32.4 ka cal BP, a dacitic Volcanic Explosivity Index 5 eruption at Misti volcano emplaced the Sacarosa tephra-fall deposit. Its biotite phenocrysts, fine grain size, scarce lithics, and abundant loose crystals characterize the deposit at locations sampled. The eruption’s ~ 800 °C magma rose rapidly from ~ 10 km depth, culminating in a Plinian eruption which...
Authors
Christopher Harpel, JJ Cuno, Marie K. Takach, M. Rivera, Rigoberto Aguilar, Frank III Tepley, F. Garcia-Arenal
Predicting burn severity for integration with post-fire debris-flow hazard assessment: A case study from the Upper Colorado River Basin, USA Predicting burn severity for integration with post-fire debris-flow hazard assessment: A case study from the Upper Colorado River Basin, USA
Background: Burn severity significantly increases the likelihood and volume of post-wildfire debris flows. Pre-fire severity predictions can expedite mitigation efforts because precipitation contributing to these hazards often occurs shortly after wildfires, leaving little time for post-fire planning and management. Aim: The aim of this study was to predict burn severity using pre-fire...
Authors
Adam Gerhard Wells, Todd Hawbaker, John Kevin Hiers, Jason W. Kean, Rachel A. Loehman, Paul F. Steblein
Integrating remote sensing with ground-based observations to quantify the effects of an extreme freeze event on black mangroves (Avicennia germinans) at the landscape scale Integrating remote sensing with ground-based observations to quantify the effects of an extreme freeze event on black mangroves (Avicennia germinans) at the landscape scale
Climate change is altering the frequency and intensity of extreme weather events. Quantifying ecosystem responses to extreme events at the landscape scale is critical for understanding and responding to climate-driven change but is constrained by limited data availability. Here, we integrated remote sensing with ground-based observations to quantify landscape-scale vegetation damage from...
Authors
Melinda Martinez, Michael Osland, James B. Grace, Nicholas Enwright, Camille Stagg, Simen Kaalstad, Gordon Anderson, Anna R. Armitage, Just Cebrian, Karen L. Cummins, Richard Day, Donna J. Devlin, Kenneth H. Dunton, Laura Feher, Alejandro Fierro-Cabo, Elena A. Flores, Andrew From, A. Randall Hughes, David A. Kaplan, Amy K. Langston, Christopher J. Miller, Charles E. Proffitt, Nathan G.F. Reaver, Colt R. Sanspree, Caitlin M. Snyder, Andrew P. Stetter, Kathleen M. Swanson, Jamie E. Thompson, Carlos Zamora-Tovar
Editorial: Ecological and behavioral traits of apex predators in oceanic insular ecosystems: Advances and challenges in research and conservation Editorial: Ecological and behavioral traits of apex predators in oceanic insular ecosystems: Advances and challenges in research and conservation
No abstract available.
Authors
Filipe Alves, Nuno Queiroz, Patrick G.R. Jodice
Native fish abundance and habitat selection changes in the presence of nonnative piscivores Native fish abundance and habitat selection changes in the presence of nonnative piscivores
We compared abundance patterns and developed resource selection models for imperilled native southwestern (USA) fishes in the presence and absence of Black Bass (Micropterus spp.) to evaluate how fishes alter their selection for habitats when sympatric with a nonnative piscivore. We collected data using snorkel surveys and in-stream habitat sampling in Fossil Creek (AZ), upstream (native...
Authors
Christopher J. Jenney, Javan Mathias Bauder, Scott A. Bonar
Assessing the suitability of YY males and ZZ females as an invasive species population control method across life histories Assessing the suitability of YY males and ZZ females as an invasive species population control method across life histories
Natural resource managers use tools to control invasive species. In theory, stocking YY males or ZZ females would allow managers to skew sex ratios until populations collapse. In combination with other suppression methods, such as removal, this approach could be incorporated into Integrated Pest Management plans. For example, fishery managers have stocked YY males to control isolated non...
Authors
Richard A. Erickson, Hannah Mann Thompson, Stacie A. Kageyama, Grace M. Andriacchi, Aaron R. Cupp, Reynaldo Patino, Jon Amberg
Effects of lead exposure on birds breeding in the Southeast Missouri Lead Mining District Effects of lead exposure on birds breeding in the Southeast Missouri Lead Mining District
Lead mining in the Southeast Missouri Lead Mining District began in the 1700s and continued for nearly 300 years; the waste piles associated with smelting, mining, and milling of lead ores have released metal residues that have contaminated soil and water in the region. Previous studies in the district have indicated potential harm to wildlife, including birds, because of elevated lead
Authors
Rebecka Brasso, Danielle M. Cleveland, Frank R. Thompson, David E. Mosby, Kathy Hixson, Melissa Roach, Barnett A. Rattner, Natalie Karouna-Renier, Julia S. Lankton
Best practices for distributing and deploying U.S. Geological Survey Shiny applications Best practices for distributing and deploying U.S. Geological Survey Shiny applications
A goal of U.S. Geological Survey (USGS) research is to create actionable science for U.S. Department of the Interior managers and partners. Properly managed and released software tools can quickly, accurately, and easily translate scientific results to aid managers’ decision-making. The USGS policies on software development and distribution affect how authors of USGS software products...
Authors
Daniel F. Shryock, Micah C. Wright, Phillip J. van Mantgem, Todd Esque
Historical maps inform landform cognition in machine learning Historical maps inform landform cognition in machine learning
No abstract available.
Authors
Samantha T. Arundel, Sinha Gaurav, Wenwen Li, David P. Martin, Kevin G McKeehan, Philip T. Thiem
Conservation at the nexus of niches: Multidimensional niche modeling to improve management of Prairie Chub Conservation at the nexus of niches: Multidimensional niche modeling to improve management of Prairie Chub
Objective
Authors
Zachary D. Steffensmeier, Shannon K. Brewer, Maeghen Wedgeworth, Trevor A. Starks, Anthony W. Rodger, Erin Nguyen, Joshuah S. Perkin
Automated mapping of culverts, bridges, and dams Automated mapping of culverts, bridges, and dams
Accurate maps of built structures around stream channels, such as dams, culverts, and bridges, are vital in monitoring infrastructure, risk management, and hydrologic modeling. Hydrologic modeling is essential for research and decisionmaking related to infrastructure and development planning, emergency management, ecology, and developing hydrographic data. Technological advances in...
Authors
Ethan J. Shavers, Larry Stanislawski, Joel Schott, Zachary Brosseau
A survey of non-USGS continuous streamflow gaging networks in the Pacific Northwest A survey of non-USGS continuous streamflow gaging networks in the Pacific Northwest
Extensive streamflow data sources exist beyond the largest streamflow data provider in the United States, the U.S. Geological Survey. We developed and distributed a survey to about 300 individuals and organizations that collect streamflow data across the Pacific Northwest (Idaho, Oregon, Washington). We received 100 responses with 56% of those sufficiently complete to include in the...
Authors
Kendra E. Kaiser, Kyle W. Blasch, Mcallister Hall