Globally prevalent land nitrogen memory amplifies water pollution following drought years
Minjin Lee, Charles A. Stock, Elena Shevliakova, Sergey Malyshev, Paul C. D. Milly
2021, Environmental Research Letters (16)
Enhanced riverine delivery of terrestrial nitrogen (N) has polluted many freshwater and coastal ecosystems, degrading drinking water and marine resources. An emerging view suggests a contribution of land N memory effects—impacts of antecedent dry conditions on land N accumulation that disproportionately increase subsequent river N loads. To...
Regal fritillary (Speyeria idalia) sex ratio in tallgrass prairie: Effects of survey timing and management regime
Kelsey McCullough, David A. Haukos, Gene Albanese
2021, The American Midland Naturalist (185) 57-76
The regal fritillary, Speyeria idalia (Drury), was once a common inhabitant of North American grassland communities. Regal fritillary populations are commonly reported to have a male biased adult sex ratio (ASR) throughout their range. We assessed the observed ASR of regal fritillary throughout an annual flight period,...
Upland burning and grazing as strategies to offset climate-change effects on wetlands
Owen P. McKenna, David A. Renton, David M. Mushet, Edward S. DeKeyser
2021, Wetlands Ecology and Management (29) 208
Wetland ecosystems perform a multitude of services valued by society and provide critical habitat for migratory birds and other wildlife. Despite their importance, wetlands have been lost to different local, regional, and global drivers. Remaining wetlands are extremely sensitive to changing temperature and precipitation regimes. Management...
The unsung success of injurious wildlife listing under the Lacey Act
Susan D. Jewell, Pam Fuller
2021, Management of Biological Invasions (12) 527-545
Previous papers discussing the effectiveness of injurious wildlife listings under 18 U.S.C. 42(a) of the Lacey Act have emphasized failures while ignoring the many successes. We looked at the 120-year history of injurious listing and then determined the effectiveness of the listings since the U.S. Fish and Wildlife Service (USFWS)...
Thermal constraints on energy balance, behaviour and spatial distribution of grizzly bears
Savannah A. Rogers, Charlie T. Robbins, Paul D. Mathewson, Anthony M. Carnahan, Frank T. van Manen, Mark A. Haroldson, Warren P. Porter, Taylor R. Rogers, Terrence Soule, Ryan A. Long
2021, Functional Ecology (35) 398-410
1. Heat dissipation limit theory posits that energy available for growth and reproduction in endotherms is limited by their ability to dissipate heat. In mammals, endogenous heat production increases markedly during gestation and lactation, and thus female mammals may be subject to greater thermal constraints on energy expenditure than males....
Quality of surface water in Missouri, water year 2019
Robert T. Kay
2021, Data Series 1132
The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, designed and operates a network of monitoring stations on streams and springs throughout Missouri known as the Ambient Water-Quality Monitoring Network (AWQMN). During water year 2019 (October 1, 2018, through September 30, 2019), water-quality data were collected...
Uranium(VI) attenuation in a carbonate-bearing oxic alluvial aquifer
PJ Nolan, S Bone, Kate M. Campbell, David Pannell, O Healy, M Stange, J Bargar, KA Weber
2021, Journal of Hazardous Materials (412)
Uranium minerals are commonly found in soils and sediment across the United States at an average concentration of 2–4 mg/kg. Uranium occurs in the environment primarily in two forms, the oxidized, mostly soluble uranium(VI) form, or the reduced, sparingly soluble reduced uranium(IV) form. Here we describe subsurface geochemical conditions that result...
Multiple co-occurring and persistently detected cyanotoxins and associated cyanobacteria in adjacent California lakes
Meredith D. A. Howard, Raphael M. Kudela, Kendra Hayashi, Avery O. Tatters, David A. Caron, Susanna Theroux, Stuart Oehrle, Miranda Roethler, Ariel Donovan, Keith A. Loftin, Zachary R. Laughrey
2021, Toxicon (192) 1-14
The global proliferation of toxin producing cyanobacterial blooms has been attributed to a wide variety of environmental factors with nutrient pollution, increased temperatures, and drought being three of the most significant. The current study is the first formal assessment of cyanotoxins...
Visualization of schistosomiasis snail habitats using light unmanned aerial vehicles
Andrew J Chamberlin, Isabel J. Jones, Andrea J Lund, Nicolas Jouanard, Gilles Riveau, Raphael Ndione, Susanne H. Sokolow, Chelsea L. Wood, Kevin D. Lafferty, Giulio A. De Leo
2021, Geospatial Health (15) 382-385
Schistosomiasis, or “snail fever”, is a parasitic disease affecting over 200 million people worldwide. People become infected when exposed to water containing particular species of freshwater snails. Habitats for such snails can be mapped using lightweight, inexpensive and field-deployable consumer-grade Unmanned Aerial Vehicles (UAVs), also known as drones. Drones can...
Variation in species composition, size and fitness of two multi-species sea turtle assemblages using different neritic habitats
Margaret M. Lamont, Darren Johnson
Nathan Freeman Putman, editor(s)
2021, Frontiers in Marine Science (7) 1-11
The neritic environment is rich in resources and as such plays a crucial role as foraging habitat for multi-species marine assemblages, including sea turtles. However, this habitat also experiences a wide array of anthropogenic threats. To prioritize conservation funds, targeting areas that support multi-species assemblages is ideal. This is particularly...
Geochemistry of coastal permafrost and erosion-driven organic matter fluxes to the Beaufort Sea near Drew Point, Alaska
Emily M. Bristol, Craig T. Connolly, Thomas Lorenson, Bruce M. Richmond, Anastasia G. Ilgen, Charles R. Choens, Diana L. Bull, Mikhail Z. Kanevskiy, Go Iwahana, Benjamin M. Jones, James W. McClelland
2021, Frontiers in Earth Science (8)
Accelerating erosion of the Alaska Beaufort Sea coast is increasing inputs of organic matter from land to the Arctic Ocean, and improved estimates of organic matter stocks in eroding coastal permafrost are needed to assess their mobilization rates under contemporary conditions. We collected three permafrost cores (4.5–7.5 m long)...
Radiometric constraints on the timing, tempo, and effects of large igneous province emplacement
Jennifer Kasbohm, Blair Schoene, Seth D. Burgess
2021, Book chapter, Large igneous provinces: A driver of global environmental and biotic changes
There is an apparent temporal correlation between large igneous province (LIP) emplacement and global environmental crises, including mass extinctions. Advances in the precision and accuracy of geochronology in the past decade have significantly improved estimates of the timing and duration of LIP emplacement, mass extinction events, and global climate perturbations,...
Using high sample rate lidar to measure debris-flow velocity and surface geometry
Francis K. Rengers, Thomas D Rapstine, Michael Olsen, Kate E. Allstadt, Richard M. Iverson, Ben Leshchinsky, Maciej Obryk, Joel B. Smith
2021, Environmental and Engineering Geoscience (27) 113-126
Debris flows evolve in both time and space in complex ways, commonly starting as coherent failures but then quickly developing structures such as roll waves and surges. These processes are readily observed but difficult to study or quantify because of the speed at which they...
Groundwater discharge impacts marine isotope budgets of Li, Mg, Ca, Sr, and Ba
Kimberly Mayfield, Anton Eisenhauer, Danielle P. Santiago Ramos, John A. Higgins, Tristan Horner, Maureen Auro, Tomas Magna, Nils Moosdorf, Matthew Charette, Meagan Gonneea Eagle, Carolyn Brady, Nemanja Komar, Bernhard Peucker-Ehrenbrink, Adina Paytan
2021, Nature Communications (12)
Groundwater-derived solute fluxes to the ocean have long been assumed static and subordinate to riverine fluxes, if not neglected entirely, in marine isotope budgets. Here we present concentration and isotope data for Li, Mg, Ca, Sr, and Ba in coastal groundwaters to constrain the importance of...
Creel surveys for social-ecological systems focused fisheries management
Chelsey L. Nieman, Carolyn Iwicki, Abigail Lynch, Greg G. Sass, Christopher T. Solomon, Ashley Trudeau, Brett van Poorten
2021, Reviews in Fisheries Science & Aquaculture (29) 739-752
Recreational fisheries are social-ecological systems (SES), and knowledge of human dimensions coupled with ecology are critically needed to understand their system dynamics. Creel surveys, which typically occur in-person and on-site, serve as an important tool for informing fisheries management. Recreational fisheries creel data have the potential...
Muted responses to chronic experimental nitrogen deposition on the Colorado Plateau
Michala Lee Phillips, Daniel E. Winkler, Robin H. Reibold, Brooke Bossert Osborne, Sasha C. Reed
2021, Oecologia (195) 513-524
Anthropogenic nitrogen (N) deposition is significantly altering both community structure and ecosystem processes in terrestrial ecosystems across the globe. However, our understanding of the consequences of N deposition in dryland systems remains relatively poor, despite evidence that drylands may be particularly vulnerable to increasing N inputs....
The use of continuous water-quality time-series data to compute total phosphorus loadings for the Turkey River at Garber, Iowa, 2018–20
Jessica D. Garrett
2021, Scientific Investigations Report 2020-5131
In support of nutrient reduction efforts, total phosphorus loads and yields were computed for the Turkey River at Garber, Iowa (U.S. Geological Survey station 05412500), for January 1, 2018, to April 30, 2020, based on continuously monitored turbidity sensor data. Sample data were used to create a total phosphorus turbidity-surrogate...
Trends in groundwater levels in and near the Rosebud Indian Reservation, South Dakota, water years 1956–2017
Kristen J. Valseth, Daniel G. Driscoll
2021, Scientific Investigations Report 2020-5119
The U.S. Geological Survey (USGS), in cooperation with the Rosebud Sioux Tribe, completed a study to characterize water-level fluctuations in observation wells to examine driving factors that affect water levels in and near the Rosebud Indian Reservation, which comprises all of Todd County. The study investigates concerns regarding potential effects...
Statistical methods for simulating structural stormwater runoff best management practices (BMPs) with the Stochastic Empirical Loading and Dilution Model (SELDM)
Gregory E. Granato, Alana B. Spaetzel, Laura Medalie
2021, Scientific Investigations Report 2020-5136
This report documents statistics for simulating structural stormwater runoff best management practices (BMPs) with the Stochastic Empirical Loading and Dilution Model (SELDM). The U.S. Geological Survey developed SELDM and the statistics documented in this report in cooperation with the Federal Highway Administration to indicate the risk for stormwater flows, concentrations,...
U.S. Geological Survey Community for Data Integration 2019 Workshop Proceedings—From big data to smart data
Leslie Hsu
2021, Open-File Report 2020-1132
The U.S. Geological Survey (USGS) Community for Data Integration (CDI) Workshop was held during June 3–7, 2019, at Center Green in Boulder, Colo. The theme of the workshop was “From Big Data to Smart Data” with the purpose of bringing together the community to discuss current topics, shared challenges, and...
Landsat collection 2
U.S. Geological Survey
2021, Fact Sheet 2021-3002
Landsat Collections ensure that all Landsat Level-1 data are consistently calibrated and processed and retain traceability of data quality provenance. Landsat Collection 2 introduces improvements that harness recent advancements in data processing, algorithm development, data access, and distribution capabilities. Collection 2 includes Landsat Level-1 data for all sensors since 1972...
Water-resource management monitoring needs, State of Hawai‘i
Chui Ling Cheng, Scot K. Izuka, Joseph Kennedy, Abby G. Frazier, Thomas W. Giambelluca
2021, Scientific Investigations Report 2020-5115
In cooperation with the State of Hawai‘i Commission on Water Resource Management and in collaboration with the University of Hawaiʻi Water Resources Research Center, the U.S. Geological Survey developed a water-resource monitoring program—a rainfall, surface-water, and groundwater data-collection program—that is required to meet State needs for water-resource assessment, management, and...
Groundwater dynamics at Kīlauea Volcano and vicinity, Hawaiʻi
Shaul Hurwitz, Sara E. Peek, Martha A. Scholl, Deborah Bergfeld, William C. Evans, James P. Kauahikaua, Stephen B. Gingerich, Paul A. Hsieh, R. Lopaka Lee, Edward F. Younger, Steven E. Ingebritsen
Matthew R. Patrick, Tim R. Orr, Don Swanson, Bruce F. Houghton, editor(s)
2021, Professional Paper 1867-F
Kīlauea Volcano, on the Island of Hawaiʻi, is surrounded and permeated by active groundwater systems that interact dynamically with the volcanic system. A generalized conceptual model of Hawaiian hydrogeology includes high-level dike-impounded groundwater, very permeable perched and basal aquifers, and a transition (mixing) zone between freshwater and saltwater. Most high-level...
The 2008–2018 summit lava lake at Kīlauea Volcano, Hawai‘i
Matthew R. Patrick, Tim R. Orr, Don Swanson, Bruce F. Houghton, editor(s)
2021, Professional Paper 1867
The 2008–2018 lava lake at the summit of Kīlauea marked the longest sustained period of lava lake activity at the summit in decades and provided a new opportunity for observing and understanding lava lake behavior. The individual chapters of this Professional Paper volume cover the basic chronology of the eruption,...
Views of a century of activity at Kīlauea Caldera—A visual essay
Ben Gaddis, James P. Kauahikaua
Matthew R. Patrick, Tim R. Orr, Don Swanson, Bruce F. Houghton, editor(s)
2021, Professional Paper 1867-B
The 2018 eruption of Kīlauea Volcano marked the end of the first sustained period of volcanic activity at Halemaʻumaʻu Crater in 94 years. The views of the lava lake (informally named “Overlook,” nestled within Halemaʻumaʻu) lasted for a decade and seemed timeless. But as we were recently reminded, the summit...
