Carbonate buffering and metabolic controls on carbon dioxide in rivers
Edward G. Stets, David Butman, Cory P. McDonald, Sarah M. Stackpoole, Michael D. DeGrandpre, Robert G. Striegl
2017, Global Biogeochemical Cycles (31) 663-677
Multiple processes support the significant efflux of carbon dioxide (CO2) from rivers and streams. Attribution of CO2 oversaturation will lead to better quantification of the freshwater carbon cycle and provide insights into the net cycling of nutrients and pollutants. CO2 production is closely related to O2consumption because of the metabolic linkage of...
Amphibian conservation: clarifications to comments from Andreone
Erin L. Muths, Robert N. Fisher
2017, Oryx (51) 216-217
We appreciate the comments from Andreone (2016) regarding our proposed alternative strategy for addressing the amphibian crisis. Andreone recognizes the utility of an Incident Command System approach but doubts the feasibility of implementation at an international level. We stated in our original article, however, that ‘the feasibility of our suggestion...
Variable effects of climate on forest growth in relation to climate extremes, disturbance, and forest dynamics
Malcolm S. Itter, Andrew O. Finley, Anthony W. D’Amato, Jane R. Foster, John B. Bradford
2017, Ecological Applications (27) 1082-1095
Changes in the frequency, duration, and severity of climate extremes are forecast to occur under global climate change. The impacts of climate extremes on forest productivity and health remain difficult to predict due to potential interactions with disturbance events and forest dynamics—changes in forest stand composition, density, size and age...
Stable isotopic composition of perchlorate and nitrate accumulated in plants: Hydroponic experiments and field data
Nubia Luz Estrada, J.K. Bohlke, Neil C. Sturchio, Baohua Gu, Greg Harvey, Kent O. Burkey, David A. Grantz, Margaret T. McGrath, Todd A. Anderson, Balaji Rao, Ritesh Sevanthi, Paul B. Hatzinger, W. Andrew Jackson
2017, Science of the Total Environment (595) 556-566
Natural perchlorate (ClO4−) in soil and groundwater exhibits a wide range in stable isotopic compositions (δ37Cl, δ18O, and Δ17O), indicating that ClO4− may be formed through more than one pathway and/or undergoes post-depositional isotopic alteration. Plants are known to accumulate ClO4−, but little is known about their ability to alter...
A foundation for future assessment and management of groundwater resources
Kenneth D. Ehman, Brian D. Edwards
2017, Conference Paper
Sequence stratigraphic models for the Pleistocene to Holocene sediments of the Los Angeles (LA) Basin will provide better understanding of regional groundwater flow and have helped identify seawater intrusion pathways into important groundwater aquifers. Because groundwater provides more than one-third of the municipal water supply for the coastal LA Basin, the aquifer...
Evaluation of harvest and information needs for North American sea ducks
Mark D. Koneff, Guthrie S. Zimmerman, Chris P. Dwyer, Kathleen K. Fleming, Paul I. Padding, Patrick K. Devers, Fred A. Johnson, Michael C. Runge, Anthony J. Roberts
2017, PLoS ONE (12) 1-29
Wildlife managers routinely seek to establish sustainable limits of sport harvest or other regulated forms of take while confronted with considerable uncertainty. A growing body of ecological research focuses on methods to describe and account for uncertainty in management decision-making and to prioritize research and monitoring investments to reduce the...
Management of plains cottonwood at Theodore Roosevelt National Park, North Dakota
Jonathan M. Friedman, Eleanor R. Griffin
2017, Natural Resource Report NPS/THRO/NRR—2017/1395
Establishment of cottonwood trees is driven by flood-induced channel migration, which provides the new surfaces necessary for successful germination and survival. Along the Little Missouri River the largest floods typically result from snowmelt in March or April. Seed release occurs in early summer, and seedlings usually germinate in moist, open...
The California Seafloor and Coastal Mapping Program – Providing science and geospatial data for California's State Waters
Samuel Y. Johnson, Guy R. Cochrane, Nadine E. Golden, Peter Dartnell, Stephen Hartwell, Susan A. Cochran, Janet Watt
2017, Ocean and Coastal Management (140) 88-104
The California Seafloor and Coastal Mapping Program (CSCMP) is a collaborative effort to develop comprehensive bathymetric, geologic, and habitat maps and data for California's State Waters. CSCMP began in 2007 when the California Ocean Protection Council (OPC) and the National Oceanic and Atmospheric Administration (NOAA) allocated funding for high-resolution...
Science framework for conservation and restoration of the sagebrush biome: Linking the Department of the Interior’s Integrated Rangeland Fire Management Strategy to long-term strategic conservation actions, Part 1. Science basis and applications
Jeanne C. Chambers, Jeffrey L. Beck, John B. Bradford, Jared Bybee, Steve Campbell, John Carlson, Thomas J Christiansen, Karen J. Clause, Gail Collins, Michele R. Crist, Jonathan B. Dinkins, Kevin Doherty, Fred Edwards, Shawn Espinosa, Kathleen A. Griffin, Paul Griffin, Jessica R. Haas, Steve E. Hanser, Douglas W. Havlina, Kenneth F. Henke, Jacob D. Hennig, Linda A Joyce, Francis F. Kilkenny, Sarah M Kulpa, Laurie L Kurth, Jeremy D Maestas, Mary E. Manning, Kenneth E. Mayer, Brian A. Mealor, Clinton McCarthy, Mike Pellant, Marco A. Perea, Karen L. Prentice, David A. Pyke, Lief A. Wiechman, Amarina Wuenschel
2017, General Technical Report RMRS-GTR-360
The Science Framework is intended to link the Department of the Interior’s Integrated Rangeland Fire Management Strategy with long-term strategic conservation actions in the sagebrush biome. The Science Framework provides a multiscale approach for prioritizing areas for management and determining effective management strategies within the sagebrush biome. The emphasis is...
A lake-centric geospatial database to guide research and inform management decisions in an Arctic watershed in northern Alaska experiencing climate and land-use changes
Benjamin M. Jones, Christopher D. Arp, Matthew S. Whitman, Debora A. Nigro, Ingmar Nitze, John Beaver, Anne Gadeke, Callie Zuck, Anna K. Liljedahl, Ronald Daanen, Eric Torvinen, Stacey Fritz, Guido Grosse
2017, Ambio (46) 769-786
Lakes are dominant and diverse landscape features in the Arctic, but conventional land cover classification schemes typically map them as a single uniform class. Here, we present a detailed lake-centric geospatial database for an Arctic watershed in northern Alaska. We developed a GIS dataset consisting of 4362 lakes that provides...
Migratory connectivity of american woodcock using band return data
Joseph D. Moore, David G. Krementz
2017, Journal of Wildlife Management (81) 1063-1072
American woodcock (Scolopax minor) are managed as a Central and an Eastern population in the United States and Canada based on band return data showing little crossover between populations or management regions. The observed proportion of crossover between management regions, however, depends on the criteria used to subset the band...
Developing criteria to establish Trusted Digital Repositories
John Faundeen
2017, Data Science Journal (16) 1-13
This paper details the drivers, methods, and outcomes of the U.S. Geological Survey’s quest to establish criteria by which to judge its own digital preservation resources as Trusted Digital Repositories. Drivers included recent U.S. legislation focused on data and asset management conducted by federal agencies spending $100M USD or more...
Fracture propagation and stability of ice shelves governed by ice shelf heterogeneity
Chris Borstad, Daniel Mcgrath, Allen Pope
2017, Geophysical Research Letters (44) 4186-4194
Tabular iceberg calving and ice shelf retreat occurs after full‐thickness fractures, known as rifts, propagate across an ice shelf. A quickly evolving rift signals a threat to the stability of Larsen C, the Antarctic Peninsula's largest ice shelf. Here we reveal the influence of ice shelf heterogeneity on the growth...
Shallow-depth location and geometry of the Piedmont Reverse splay of the Hayward Fault, Oakland, California
Rufus D. Catchings, Mark R. Goldman, David Trench, Michael Buga, Joanne H. Chan, Coyn J. Criley, Luther M. Strayer
2017, Open-File Report 2016-1123
The Piedmont Thrust Fault, herein referred to as the Piedmont Reverse Fault (PRF), is a splay of the Hayward Fault that trends through a highly populated area of the City of Oakland, California (fig. 1A). Although the PRF is unlikely to generate a large-magnitude earthquake, slip on the PRF or...
Octocoral diseases in a changing ocean
Ernesto Weil, Caroline S. Rogers, Aldo Croquer
2017, Book chapter, Marine animal forests: The ecology of benthic biodiversity hotspots
Octocorals (Cnidaria, Octocorallia) constitute a geographically widely distributed and common group of marine invertebrates commonly referred to as “soft-corals,” “sea fans,” “horny corals,” “sea feathers,” and “sea plumes.” They are found from shallow coastal habitats to mesophotic and abyssal depths. Octocorals are important members of most Atlantic-Caribbean, Indo-Pacific, and Mediterranean...
Long-term afterslip of the M6.0, 2004 Parkfield, California, earthquake—Implications for forecasting amount and duration of afterslip on other major creeping faults
James J. Lienkaemper, Forrest S. McFarland
2017, Bulletin of the Seismological Society of America (107) 1082-1093
We present the longest record of surface afterslip on a continental strike‐slip fault for the 2004 M 6.0 Parkfield, California, earthquake, from which we can derive critical information about the duration and predictability of afterslip relevant to urban displacement hazard applications. Surface slip associated with this event occurred entirely postseismically...
Identification of alginite and bituminite in rocks other than coal. 2006, 2009, and 2011 round robin exercises of the ICCP Identification of Dispersed Organic Matter Working Group
J. Kus, C.V. Araujo, A.G. Borrego, D. Flores, Paul C. Hackley, M. Hamor-Vido, Stavros Kalaitzidis, C.J. Kommeren, B. Kwiecinska, M. Mastalerz, J.G. Mendonca Filho, T.R. Menezes, M. Misz-Kennan, G.J. Nowak, H. Petersen, D. Rallakis, I. Suarez-Ruiz, I. Sykorova, D. Zivotić
2017, International Journal of Coal Geology (178) 26-38
The paper presents results of round robin exercises on photomicrograph-based identification of dispersed organic matter in source rocks that represent a range of marine and lacustrine deposits from worldwide localities and cover a range of thermal maturities. The round robin exercises were conducted by...
A groundwater-flow model for the Treasure Valley and surrounding area, southwestern Idaho
James R. Bartolino, Sean Vincent
2017, Fact Sheet 2017-3027
The U.S. Geological Survey (USGS), in partnership with the Idaho Department of Water Resources (IDWR) and Idaho Water Resource Board (IWRB), will construct a numerical groundwater-flow model of the Treasure Valley and surrounding area. Resource managers will use the model to simulate potential anthropogenic and climatic effects on groundwater for...
Precipitation collector bias and its effects on temporal trends and spatial variability in National Atmospheric Deposition Program/National Trends Network data
Gregory A. Wetherbee
2017, Environmental Pollution (223) 90-101
Precipitation samples have been collected by the National Atmospheric Deposition Program's (NADP) National Trends Network (NTN) using the Aerochem Metrics Model 301 (ACM) collector since 1978. Approximately one-third of the NTN ACM collectors have been replaced with N-CON Systems, Inc. Model ADS 00-120 (NCON) collectors. Concurrent data were collected over...
A window of opportunity for climate-change adaptation: Easing tree mortality by reducing forest basal area
John B. Bradford, David M. Bell
2017, Frontiers in Ecology and the Environment (15) 11-17
Increasing aridity as a result of climate change is expected to exacerbate tree mortality. Reducing forest basal area – the cross-sectional area of tree stems within a given ground area – can decrease tree competition, which may reduce drought-induced tree mortality. However, neither the magnitude of expected mortality increases, nor...
Capturing spatiotemporal variation in wildfires for improving postwildfire debris-flow hazard assessments
Jessica R. Haas, Matthew P. Thompson, Anne C. Tillery, Joe H. Scott
2017, Book chapter, Natural Hazard Uncertainty Assessment: Modeling and Decision Support
Wildfires can increase the frequency and magnitude of catastrophic debris flows. Integrated, proactive natural hazard assessment would therefore characterize landscapes based on the potential for the occurrence and interactions of wildfires and postwildfire debris flows. This chapter presents a new modeling effort that can quantify the variability surrounding a key...
Disturbance automated reference toolset (DART): Assessing patterns in ecological recovery from energy development on the Colorado Plateau
Travis W. Nauman, Michael C. Duniway, Miguel L. Villarreal, Travis B. Poitras
2017, Science of the Total Environment (584-585) 476-488
A new disturbance automated reference toolset (DART) was developed to monitor human land surface impacts using soil-type and ecological context. DART identifies reference areas with similar soils, topography, and geology; and compares the disturbance condition to the reference area condition using a quantile-based approach based on a satellite vegetation index....
The effect of urban growth on landscape-scale restoration for a fire-dependent songbird
Bradley A. Pickens, Jeffrey F. Marcus, John P. Carpenter, Scott Anderson, Paul J. Taillie, Jaime A. Collazo
2017, Journal of Environmental Management (191) 105-115
A landscape-scale perspective on restoration ecology has been advocated, but few studies have informed restoration with landscape metrics or addressed broad-scale threats. Threats such as urban growth may affect restoration effectiveness in a landscape context. Here, we studied longleaf pine savanna in the rapidly urbanizing southeastern United States where a...
Community disruptions and business costs for distant tsunami evacuations using maximum versus scenario-based zones
Nathan J. Wood, Rick I. Wilson, Jamie L. Ratliff, Jeff Peters, Ed MacMullan, Tessa Krebs, Kimberley Shoaf, Kevin Miller
2017, Natural Hazards (86) 619-643
Well-executed evacuations are key to minimizing loss of life from tsunamis, yet they also disrupt communities and business productivity in the process. Most coastal communities implement evacuations based on a previously delineated maximum-inundation zone that integrates zones from multiple tsunami sources. To support consistent evacuation planning that protects lives but...
Monitoring protocols: Options, approaches, implementation, benefits
Jason W. Karl, Jeffrey E. Herrick, David A. Pyke
2017, Book chapter, Monitoring protocol: Options, approaches, implementation, benefits
Monitoring and adaptive management are fundamental concepts to rangeland management across land management agencies and embodied as best management practices for private landowners. Historically, rangeland monitoring was limited to determining impacts or maximizing the potential of specific land uses—typically grazing. Over the past several decades, though, the uses of and...
