Investigation of scale-dependent groundwater/surface-water exchange in rivers by gradient self-potential logging: Numerical modeling and field experiments
Scott Ikard, Martin A. Briggs, John W. Lane
2021, Journal of Environmental and Engineering Geophysics (26)
Exchanges of groundwater and surface-water are fundamental to a wide range of water-supply and water-quality management issues but challenging to map beyond the reach scale. Waterborne gradient self-potential (SP) measurements are directly sensitive to water flow through riverbed sediments and can be used to infer exchange locations, direction (gain versus...
Distributed memory parallel groundwater modeling for the Netherlands Hydrological Instrument
Jarno Verkaik, Joseph D. Hughes, van Walsum, G.H.P. Oude Essink, H.X. Lin, M.F.P. Bierkens
2021, Environmental Software & Modelling (143)
Worldwide, billions of people rely on fresh groundwater reserves for their domestic, agricultural and industrial water use. Extreme droughts and excessive groundwater pumping put pressure on water authorities in maintaining sustainable water usage. High-resolution integrated models are valuable assets in supporting them. The Netherlands Hydrological Instrument (NHI) provides the Dutch...
Juvenile moose stress and nutrition dynamics related to winter ticks, landscape characteristics, climate-mediated factors and survival
Elias Rosenblatt, Jacob Debow, Joshua Blouin, Therese M. Donovan, James Murdoch, Scott Creel, Will Rogers, Katherina Gieder, Nick Fortin, Cedric Alexander
2021, Conservation Physiology (9)
Moose populations in the northeastern United States have declined over the past 15 years, primarily due to the impacts of winter ticks. Research efforts have focused on the effects of winter tick infestation on moose survival and reproduction, but stress and nutritional responses to ticks and other stressors remain understudied. We...
Individual and seasonal variation in the movement behavior of two tropical nectarivorous birds
Jennifer R Smetzer, Kristina L. Paxton, Eben H. Paxton
2021, Movement Ecology (9)
BackgroundMovement of animals directly affects individual fitness, yet fine spatial and temporal resolution movement behavior has been studied in relatively few small species, particularly in the tropics. Nectarivorous Hawaiian honeycreepers are believed to be highly mobile throughout the year, but their fine-scale movement patterns remain unknown. The movement...
Optimization of salt marsh management at the Edwin B. Forsythe National Wildlife Refuge, New Jersey, through use of structured decision making
Hilary A. Neckles, James E. Lyons, Jessica L. Nagel, Susan C. Adamowicz, Toni Mikula, Paul M. Castelli, Virginia Rettig
2021, Open-File Report 2021-1037
Structured decision making is a systematic, transparent process for improving the quality of complex decisions by identifying measurable management objectives and feasible management actions; predicting the potential consequences of management actions relative to the stated objectives; and selecting a course of action that maximizes the total benefit achieved and balances...
Least Bell's Vireos and Southwestern Willow Flycatchers at the San Luis Rey flood risk management project area in San Diego County, California—Breeding activities and habitat use—2020 annual report
Alexandra Houston, Lisa D. Allen, Ryan E. Pottinger, Barbara E. Kus
2021, Open-File Report 2021-1053
Executive SummarySurveys and monitoring for the endangered Least Bell’s Vireo (Vireo bellii pusillus; vireo) were done at the San Luis Rey Flood Risk Management Project Area (Project Area) in the city of Oceanside, San Diego County, California, between March 31 and July 20, 2020. We completed four protocol surveys during...
Consequences of migratory coupling of predators and prey when mediated by human actions
Navinder J. Singh, Fraucke Ecke, Todd E. Katzner, Sumanta Bagchi, Per Sandstrom, Birger Hornfeldt
2021, Diversity and Distributions (27) 1848-1860
AimAnimal migrations influence ecosystem structure, dynamics and persistence of predator and prey populations. The theory of migratory coupling postulates that aggregations of migrant prey can induce large-scale synchronized movements in predators, and this coupling is consequential for the dynamics of ecological communities. The degree to which humans...
Elk monitoring in Mount Rainier and Olympic National Parks: 2008-2017 synthesis report
Kurt Jenkins, B. C. Lubow, P. J. Happe, K. Braun, J. Boetsch, W. Baccus, T. Chestnut, D. J. Vales, B. J. Moeller, M. Tirhi, E. Holman, P. C. Griffin
2021, Natural Resource Report NPS/NCCN/NRR-2021/2284
In 2008, the U.S. Geological Survey (USGS) began collaborating with the National Park Service (NPS)-North Coast and Cascades Network (NCCN), the Muckleshoot Indian Tribe (MIT), Puyallup Tribe of Indians (PTOI), and Washington Department of Fish and Wildlife (WDFW) to develop a standard survey protocol for monitoring long-term changes in the...
What is the effect of poaching activity on wildlife species?
Jennifer F. Moore, Eustrate Uzabaho, Abel Musana, Prosper Uwingell, James E. Hines, James D. Nichols
2021, Ecological Applications (31)
Poaching is a pervasive threat to wildlife, yet quantifying the direct effect of poaching on wildlife is rarely possible because both wildlife and threat data are infrequently collected concurrently. In this study, we used poaching data collected through the Management Information System (MIST) and wildlife camera trap data collected by...
Wetlands
Brian Tangen, Sheel Bansal
2021, Report, Recarbonizing global soils – A technical manual of recommended management practices
During the last decades, soil organic carbon (SOC) attracted the attention of a much wider array of specialists beyond agriculture and soil science, as it was proven to be one of the most crucial components of the earth’s climate system, which has a great potential to be managed by humans....
Predicting water temperature dynamics of unmonitored lakes with meta-transfer learning
Jared Willard, Jordan Read, Alison P. Appling, Samantha K. Oliver, Xiaowei Jia, Vipin Kumar
2021, Water Resources Research (57)
Most environmental data come from a minority of well-monitored sites. An ongoing challenge in the environmental sciences is transferring knowledge from monitored sites to unmonitored sites. Here, we demonstrate a novel transfer-learning framework that accurately predicts depth-specific temperature in unmonitored lakes (targets) by borrowing models from well-monitored lakes (sources). This...
Exploring GPS observations of postseismic deformation following the 2012 MW7.8 Haida Gwaii and 2013 MW7.5 Craig, Alaska Earthquakes: Implications for viscoelastic Earth structure
Katherine A. Guns, Frederick Pollitz, Thorne Lay, Han Yue
2021, Journal of Geophysical Research B: Solid Earth (126)
The Queen Charlotte-Fairweather Fault (QC-FF) system off the coast of British Columbia and southeast Alaska is a highly active dextral strike-slip plate boundary that accommodates ∼50 mm/yr of relative motion between the Pacific and North America plates. Nine MW ≥ 6.7 earthquakes have occurred along the QC-FF system since 1910, including a MS(G-R)8.1 event in...
National Park Service Vegetation Mapping Inventory Program: Great Smoky Mountains National Park vegetation mapping project
Kevin D. Hop, Andrew C. Strassman, Stephanie Sattler, Rickie White, Milo Pyne, Tom Govus, Jennifer Dieck
2021, Natural Resource Report 2021/2285
The National Park Service (NPS) Vegetation Mapping Inventory (VMI) Program is an effort to classify, describe, and map existing vegetation communities in national park units throughout the United States. The NPS VMI Program is managed by the NPS Natural Resource Stewardship and Science Inventory and Monitoring Program and provides baseline...
Economic geology and environmental characteristics of antimony deposits
Robert R. Seal, II
2021, Book chapter, Antimony
Antimony is commonly listed as a critical mineral, particularly in the United States and European Union [1]. Its criticality, or supply risk, is derived from a combination of economic vulnerability, disruption potential of supply, and trade exposure [2].Disruption potential relates a country’s ability and willingness to supply a commodity. Commodities...
Climate change scenario planning for resource stewardship at Wind Cave National Park
Amber N. Runyon, Gregor W. Schuurman, Brian W. Miller, Amy Symstad, Amanda Hardy
2021, Natural Resource Report NPS/NRSS/NRR—2021/2274
This report explains scenario planning as a climate change adaptation tool in general, then describes how it was applied to Wind Cave National Park as the second part of a pilot project to dovetail climate change scenario planning with National Park Service (NPS) Resource Stewardship Strategy development. In the orientation...
Tools and technologies for quantifying spread and impacts of invasive species
Matt Reeves, Ines Ibanez, Dana Blumenthal, Gang Chen, Qinfeng Guo, Catherine S. Jarnevich, Jennifer Koch, Frank Sapio, Michael D. Schwartz, Ross K. Meentemeyer, Bruce Wylie, Stephen P. Boyte
2021, Book chapter, Invasive species in forests and rangelands of the United States: A comprehensive science synthesis for the United States Forest Sector
The need for tools and technologies for understanding and quantifying invasive species has never been greater. Rates of infestation vary on the species or organism being examined across the United States, and notable examples can be found. For example, from 2001 to 2003 alone, ash (Fraxinus spp.) mortality progressed at a...
Mineral Mapping of the Battle Mountain District, Nevada, USA, Using AVIRIS-Classic and SpecTIR Inc. AisaFENIX 1K Imaging Spectrometer Datasets
John Michael Meyer, Elizabeth A. Holley, Raymond F. Kokaly, Gregg A. Swayze, Todd M. Hoefen
2021, Conference Paper, 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS
Imaging spectroscopy (hyperspectral imaging) has been used to successfully map minerals at the outcrop, deposit, district, and regional scale. This contribution presents spectral-based mineral maps of the Battle Mountain mining district, Nevada, USA, generated using multi-scale airborne imaging and ground-based point spectrometers. Airborne Visible/Infrared Imaging Spectrometer...
Using landscape metrics to characterize towns along an urban-rural gradient
Abigail R. Kaminski, Dana Marie Bauer, Kathleen P. Bell, Cyndy Loftin, Erik Nelson
2021, Landscape Ecology (36) 2937-2956
ContextUrban-rural gradients are useful tools when examining the influence of human disturbances on ecological, social and coupled systems, yet the most commonly used gradient definitions are based on single broad measures such as housing density or percent forest cover that fail to capture landscape patterns important for conservation.<h3...
Fragmentation and streamflow metrics drive prairie chub (Macrhybopsis australis) occurrence in the upper Red River basin
R. Mollenhauer, Shannon K. Brewer, J.S. Perkin, D. Swedberg, M. Wedgeworth, Z.D. Steffensmeier
2021, Aquatic Conservation: Marine and Freshwater Ecosystems (31) 3215-3227
Dam construction threatens global aquatic biodiversity by fragmenting stream networks and altering flow regimes. The negative effects of dams are exacerbated by increased drought periods and associated water withdrawals, especially in semi-arid regions. Stream fishes are particularly threatened owing to their mobile nature and requirement for multiple habitats to...
Borehole sampling of surficial sediments in Northern Virginia and Southern Maryland
Peter G. Chirico, Jessica D. DeWitt, Sarah E. Bergstresser
2021, Open-File Report 2021-1038
From 2014 to 2017, the U.S. Geological Survey’s Florence Bascom Geoscience Center (FBGC) entered into an inter-agency agreement with the Federal Highway Administration’s Turner-Fairbank Highway Research Center (TFHRC) to assist in field site selection and auger drilling fieldwork. The TFHRC was developing a device to measure the erosional properties of...
Literature review for candidate chemical control agents for nonnative crayfish
Justin R. Schueller, Justin R. Smerud, Kim T. Fredricks, Joel G. Putnam
2021, Open-File Report 2021-1048
Nonnative crayfish are an immediate and pervasive threat to aquatic environments and their biodiversity. Crayfish control can be achieved by physical methods, water chemistry modification, biological methods, biocidal application, and application of crayfish physiology modifiers. The purpose of this report is to identify suitable candidates for potential control of nonnative...
Geologic and geophysical maps of the Newfoundland Mountains and part of the adjacent Wells 30' x 60' quadrangles, Box Elder County, Utah
David M. Miller, Tracey J. Felger, Victoria E. Langenheim
2021, Utah Geological Survey Miscellaneous Publication MP-173DM
The Newfoundland Mountains map area (Newfoundland Mountains and adjacent part of Wells 30' x 60' quadrangles) is located in Box Elder County, northwestern Utah. The map encompasses broad expanses of the Great Salt Lake Desert as well as several picturesque mountain ranges (figures 1, 2, and 3). The geology of...
Toward improved decision-support tools for Delta Smelt management actions
Denise Reed, Shawn Acuna, Eli Ateljevich, Larry R. Brown, Ben Geske, Edward Gross, Jim Hobbs, Wim J. Kimmerer, Lisa Lucas, Matthew Nobriga, Kenneth A Rose
2021, Report
The Collaborative Science and Adaptive Management Program (CSAMP) has endorsed a goal of reversing the recent downward trajectory of the Delta Smelt population within 5-10 generations, with the long-term aim of establishing a self-sustaining population. An ambitious agenda of management actions is planned, and more management actions are being considered....
Appendix E. Water quality and hydrology of Green Lake, Wisconsin, and the response in its near-surface water-quality and metalimnetic dissolved oxygen minima to changes in phosphorus loading
Dale M. Robertson, Benjamin J. Siebers, Robert Ladwig, David P. Hamilton, Paul Reneau, Cory P. McDonald, Stephanie Prellwitz, Richard C Lathrop
2021, Report, Diagnostic and feasibility study findings: Water quality improvements for Green Lake, Wisconsin
Green Lake is the deepest natural inland lake in Wisconsin, USA, with a maximum depth of about 72 meters (m). In the early 1900’s, the lake was believed to have very good water quality (low nutrient concentrations and good water clarity), with low dissolved oxygen (DO) concentrations only in the...
Quantifying the representation of plant communities in the protected areas of the U.S.: An analysis based on the U.S. National Vegetation Classification Groups
Alexa McKerrow, Anne Davidson, Matthew J. Rubino, Don Faber-Langendoen, Daryn Dockter
2021, Forests (12)
Plant communities represent the integration of ecological and biological processes and they serve as an important component for the protection of biological diversity. To measure progress towards protection of ecosystems in the United States for various stated conservation targets we need datasets at the appropriate thematic, spatial, and temporal resolution....
