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U.S. Geological Survey Northern Rocky Mountain Science Center science highlights for fiscal year 2023
The U.S. Geological Survey (USGS) Northern Rocky Mountain Science Center is based in Bozeman, Montana, and has field offices in Glacier National Park, Mont.; Missoula, Mont.; and Knoxville, Tennessee. Our scientists respond to the natural resource management needs of Federal, Tribal, and State partners—directly engaging in the coproduction and application of integrated, interdisciplinary science—a
Authors
Todd Wojtowicz
Interdisciplinary science approach for harmful algal blooms (HABs) and algal toxins—A strategic science vision for the U.S. Geological Survey
Executive SummaryAlgal blooms in water, soils, dusts, and the environment have captured national attention because of concerns associated with exposure to algal toxins for humans and animals. Algal blooms naturally occur in all surface-water types and are important primary producers for aquatic ecosystems. However, excessive algae growth can be associated with many harmful effects ranging from aes
Authors
Victoria G. Christensen, Christopher J. Crawford, Robert J. Dusek, Michael J. Focazio, Lisa Reynolds Fogarty, Jennifer L. Graham, Celeste A. Journey, Mari E. Lee, James H. Larson, Sarah M. Stackpoole, Viviana Mazzei, Emily J. Pindilli, Barnett A. Rattner, E. Terrence Slonecker, Kristen B. McSwain, Timothy J. Reilly, Ashley E. Lopez
By
Ecosystems Mission Area, Water Resources Mission Area, Environmental Health Program, Toxic Substances Hydrology, Earth Resources Observation and Science (EROS) Center , Kansas Water Science Center, National Wildlife Health Center, New Jersey Water Science Center, New York Water Science Center, South Atlantic Water Science Center (SAWSC), Upper Midwest Water Science Center, Landsat Missions
Capturing potential: Leveraging grass carp behavior Ctenopharyngodon idella for enhanced removal
Effective management of invasive species benefits from a comprehensive understanding of the species’ behavior and interactions with the invaded system. We investigated temporal dynamics of telemetry detections and the potential utility of a traitor approach for informing response efforts to the invasive grass carp (Ctenopharyngodon idella) population in the Sandusky River, a major tributary to Lak
Authors
Matthew Ross Acre, Tyler Michael Hessler, Sophia Marie Bonjour, James Roberts, Scott F. Colborne, Travis O. Brenden, Lucas R. Nathan, Dustin Broaddus, Christopher S. Vandergoot, Christine M. Mayer, Song S. Qian, Robert D. Hunter, Ryan E. Brown, Robin Calfee
Peak streamflow trends in Michigan and their relation to changes in climate, water years 1921–2020
This study characterizes hydroclimatic variability and change in peak streamflow and daily streamflow in Michigan from water years 1921 through 2020. Four analysis periods were examined: the 100-year period from water year 1921 through 2020, the 75-year period from water year 1946 through 2020, the 50-year period from water year 1971 through 2020, and the 30-year period from water year 1991 throug
Authors
Sara B. Levin
Multinational evaluation of genetic diversity indicators for the Kunming-Montreal Global Biodiversity Framework
Under the recently adopted Kunming-Montreal Global Biodiversity Framework, 196 Parties committed to reporting the status of genetic diversity for all species. To facilitate reporting, three genetic diversity indicators were developed, two of which focus on processes contributing to genetic diversity conservation: maintaining genetically distinct populations and ensuring populations are large enoug
Authors
Alicia Mastretta-Yanes, Jessica M. da Silva, Catherine E. Grueber, Luis Castillo-Reina, Viktoria Köppä, Brenna R. Forester, W. Chris Funk, Myriam Heuertz, Fumiko Ishihama, Rebecca Jordan, Joachim Mergeay, Ivan Paz-Vinas, Victor Julio Rincon-Parra, Maria Alejandra Rodriguez-Morales, Libertad Arredondo-Amezcua, Gaëlle Brahy, Matt DeSaix, Lily Durkee, Ashley Hamilton, Margaret E. Hunter, Austin Koontz, Iris Lang, María Camila Latorre-Cárdenas, Tanya Latty, Alexander Llanes-Quevedo, Anna J. MacDonald, Meg Mahoney, Caitlin Miller, Juan Francisco Ornelas, Santiago Ramírez-Barahona, Erica Robertson, Isa-Rita M. Russo, Metztli Arcila Santiago, Robyn E. Shaw, Glenn M. Shea, Per Sjögren-Gulve, Emma Suzuki Spence, Taylor Stack, Sofia Suarez, Akio Takenaka, Henrik Thurfjell, Sheela P. Turbek, Marlien van der Merwe, Fleur Visser, Ana Wegier, Georgina Wood, Eugenia Zarza, Linda Laikre, Sean M. Hoban
Declining groundwater storage expected to amplify mountain streamflow reductions in a warmer world
Groundwater interactions with mountain streams are often simplified in model projections, potentially leading to inaccurate estimates of streamflow response to climate change. Here, using a high-resolution, integrated hydrological model extending 400 m into the subsurface, we find groundwater an important and stable source of historical streamflow in a mountainous watershed of the Colorado River.
Authors
Rosemary W.H. Carroll, Richard G. Niswonger, Craig Ulrich, Charuleka Varadharajan, Erica Siirila-Woodburn, Kenneth H. Williams
Browsing the literature
For this edition of Browsing the Literature, we have two new papers from Rangeland Ecology & Management, a series of basic ecology papers with an international scope from journals such as the Proceedings of the National Academy of Sciences (USA), Science, and Nature, and several papers advancing our understanding of drought and carbon at global scales. Additionally, several papers on sagebrush-st
Authors
Matthew Germino
Examining inequality in aquatic ecosystem services: Evidence from large-scale monitoring programs
We hypothesize that aquatic ecosystem services are likely to be inequitably accessible and addressing this hypothesis requires systematic assessment at regional and national scales. We used existing data from large-scale aquatic monitoring programs (National Coastal Condition Assessment, National Lakes Assessment) to examine relationships between ecosystem condition, approximating a subset of cult
Authors
Katya E. Kovalenko, Sergey Ilyushkin, Holly Wellar-Kelly, Justine Annaliese Neville, Glenn R. Guntenspergen
Does the extent of glacial cover across watersheds and discharge periods affect dietary resource use of nearshore fishes in the Northern Gulf of Alaska?
Northern high-latitude glaciers impact nearshore marine ecosystems through the discharge of cold and fresh waters, including nutrients and organic matter. Fishes are important integrators of ecosystem processes and hold key positions in the transfer of energy to higher trophic positions in such systems. This study used a natural gradient in space and time, including watershed glacial cover (0–60%)
Authors
Lindsey Stadler, Kristen Gorman, Vanessa R. von Biela, Andrew C. Seitz, Katrin Iken
How to select an objective function using information theory
In machine learning or scientific computing, model performance is measured with an objective function. But why choose one objective over another? According to the information-theoretic paradigm, the “best” objective function is whichever minimizes information loss. To evaluate different objectives, transform them into likelihoods. The ratios of these likelihoods represent how strongly we should pr
Authors
Timothy O. Hodson, Thomas M. Over, Smith Tyler, Lucy A. Marshall
Genetic analysis of harvest samples reveals population structure in a highly mobile generalist carnivore
Delineating wildlife population boundaries is important for effective population monitoring and management. The bobcat (Lynx rufus) is a highly mobile generalist carnivore that is ecologically and economically important. We sampled 1225 bobcats harvested in South Dakota, USA (2014–2019), of which 878 were retained to assess genetic diversity and infer population genetic structure using 17 microsat
Authors
Stuart C. Fetherston, Robert Charles Lonsinger, Lora B. Perkins, Chadwick P. Lehman, Jennifer R. Adams, Lisette P. Waits
Genome-wide association analysis of the resistance to infectious hematopoietic necrosis virus in two rainbow trout aquaculture lines confirms oligogenic architecture with several moderate effect quantitative trait loci
Infectious hematopoietic necrosis (IHN) is a disease of salmonid fish that is caused by the IHN virus (IHNV), which can cause substantial mortality and economic losses in rainbow trout aquaculture and fisheries enhancement hatchery programs. In a previous study on a commercial rainbow trout breeding line that has undergone selection, we found that genetic resistance to IHNV is controlled by the ol
Authors
Yniv Palti, Roger L. Vallejo, Maureen K. Purcell, Guangtu Gao, Kristy L. Shewbridge, Roseanna L. Long, Christopher Setzke, Breno O. Fragomeni, Hao Cheng, Kyle E. Martin, Kerrry A. Naish