Temporal changes in nitrogen and phosphorus concentrations with comparisons to conservation practices and agricultural activities in the Lower Grand River, Missouri and Iowa, and selected watersheds, 1969–2015
Heather M. Krempa, Allison K. Flickinger
2017, Scientific Investigations Report 2017-5067
This report presents the results of a cooperative study by the U.S. Geological Survey and Missouri Department of Natural Resources to estimate total nitrogen (TN) and total phosphorus (TP) concentrations at monitoring sites within and near the Lower Grand River hydrological unit. The primary objectives of the study were to...
Methodology for time-domain estimation of storm time geoelectric fields using the 3-D magnetotelluric response tensors
Anna Kelbert, Christopher Balch, Antti Pulkkinen, Gary D. Egbert, Jeffrey J. Love, E. Joshua Rigler, Ikuko Fujii
2017, Space Weather (15) 874-894
Geoelectric fields at the Earth's surface caused by magnetic storms constitute a hazard to the operation of electric power grids and related infrastructure. The ability to estimate these geoelectric fields in close to real time and provide local predictions would better equip the industry to mitigate negative impacts on their...
Mercury correlates with altered corticosterone but not testosterone or estradiol concentrations in common loons
Melinda D. Franceshini, David C. Evers, Kevin P. Kenow, Michael W. Meyer, Mark Pokras, L. Michael Romero
2017, Ecotoxicology and Environmental Safety (142) 348-354
We investigated the relation between environmental mercury exposure and corticosterone concentrations in free-living adult common loons (Gavia immer). We determined blood and feather mercury concentrations and compared them to testosterone, estradiol, and stress-induced plasma corticosterone concentrations. Although neither testosterone nor estradiol correlated with Hg levels, there was a robust positive...
Managed aquifer recharge through off-season irrigation in agricultural regions
Richard G. Niswonger, Eric D. Morway, Enrique Triana, Justin L. Huntington
2017, Water Resources Research (53) 6970-6992
Options for increasing reservoir storage in developed regions are limited and prohibitively expensive. Projected increases in demand call for new long-term water storage to help sustain agriculture, municipalities, industry, and ecological services. Managed aquifer recharge (MAR) is becoming an integral component of water resources around the world. However, MAR faces...
Vegetation history since the last glacial maximum in the Ozark highlands (USA): A new record from Cupola Pond, Missouri
Rachel A. Jones, John W. Williams, Stephen T. Jackson
2017, Quaternary Science Reviews (170) 174-187
The timing and drivers of vegetation dynamics and formation of no-analog plant communities during the last deglaciation in the unglaciated southeastern US are poorly understood. We present a multi-proxy record spanning the past 19,800 years from Cupola Pond in the Ozarks Mountains, consisting of replicate high-resolution pollen records, 25 AMS...
Distribution and migration chronology of Eastern population sandhill cranes
David L. Fronczak, David E. Andersen, Everett E. Hanna, Thomas R. Cooper
2017, Journal of Wildlife Management (81) 1021-1032
The Eastern Population (EP) of greater sandhill cranes (Antigone canadensis tabida; cranes) is expanding in size and geographic range. Little information exists regarding the geographic extent of breeding, migration, and wintering ranges, migration chronology, or use of staging areas for cranes in the EP. To obtain these data, we attached...
Why social values cannot be changed for the sake of conservation
Michael J. Manfredo, Jeremy T. Bruskotter, Tara L. Teel, David C. Fulton, Shalom H. Schwartz, Robert Arlinghaus, Shigehiro Oishi, Ayse K. Uskul, Kent Redford, Shinobu Kitayama, Leeann Sullivan
2017, Conservation Biology (31) 772-780
The hope for creating widespread change in social values has endured among conservation professionals since early calls by Aldo Leopold for a “land ethic.” However, there has been little serious attention in conservation to the fields of investigation that address values, how they are formed, and how they change. We...
How hunter perceptions of wildlife regulations, agency trust, and satisfaction affect attitudes about duck bag limits
Susan A. Schroeder, David C. Fulton, Jeffrey S. Lawrence, Steven D. Cordts
2017, Human Dimensions of Wildlife (22) 454-475
This study explored how factors, including the function of bag limits, agency trust, satisfaction, hunting participation, and demographics, related to opinions about duck bag limits. The results are from a survey of 2014 Minnesota resident waterfowl hunters. Analyses identified four dimensions of attitudes about functions of bag limits, including that...
Debris flow initiation by runoff in a recently burned basin: Is grain-by-grain sediment bulking or en masse failure to blame?
Luke McGuire, Francis K. Rengers, Jason W. Kean, Dennis M. Staley
2017, Geophysical Research Letters (44) 7310-7319
Postwildfire debris flows are frequently triggered by runoff following high-intensity rainfall, but the physical mechanisms by which water-dominated flows transition to debris flows are poorly understood relative to debris flow initiation from shallow landslides. In this study, we combined a numerical model with high-resolution hydrologic and geomorphic data sets to...
Uncertainty, variability, and earthquake physics in ground‐motion prediction equations
Annemarie S. Baltay Sundstrom, Thomas C. Hanks, Norm A. Abrahamson
2017, Bulletin of the Seismological Society of America (107) 1754-1772
Residuals between ground‐motion data and ground‐motion prediction equations (GMPEs) can be decomposed into terms representing earthquake source, path, and site effects. These terms can be cast in terms of repeatable (epistemic) residuals and the random (aleatory) components. Identifying the repeatable residuals leads to a GMPE with reduced uncertainty for a...
Future research needs involving pathogens in groundwater
Scott A. Bradford, Ronald W. Harvey
2017, Hydrogeology Journal (25) 931-938
Contamination of groundwater by enteric pathogens has commonly been associated with disease outbreaks. Proper management and treatment of pathogen sources are important prerequisites for preventing groundwater contamination. However, non-point sources of pathogen contamination are frequently difficult to identify, and existing approaches for pathogen detection are costly and only provide semi-quantitative...
Spatial heterogeneity of within-stream methane concentrations
John T. Crawford, Luke C. Loken, William E. West, Benjamin Crary, Seth A. Spawn, Nicholas Gubbins, Stuart E. Jones, Robert G. Striegl, Emily H. Stanley
2017, Journal of Geophysical Research G: Biogeosciences (122) 1036-1048
Streams, rivers, and other freshwater features may be significant sources of CH4 to the atmosphere. However, high spatial and temporal variabilities hinder our ability to understand the underlying processes of CH4 production and delivery to streams and also challenge the use of scaling approaches across large areas. We studied a stream having...
Intra‐annual variability of Silver Carp populations in the Des Moines River, USA
Christopher J. Sullivan, Carlos A. Camacho, Michael J. Weber, Clay Pierce
2017, North American Journal of Fisheries Management (37) 836-849
Since their introduction in the 1970s, Silver Carp Hypophthalmichthys molitrix have spread throughout the Mississippi River basin. Management of any species relies on an accurate understanding of population characteristics and dynamics. However, Silver Carp seasonal sampling variation is unknown. Sampling during periods of peak catch rates would facilitate Silver Carp assessment and...
Relative sampling efficiency and movements of subadult Lake Sturgeon in the Lower Wolf River, Wisconsin
Zachary R. Snobl, Daniel A. Isermann, Ryan P. Koenigs, Joshua K. Raabe
2017, Transactions of the American Fisheries Society (146) 1070-1080
Understanding sampling efficiency and movements of subadult Lake Sturgeon Acipenser fulvescens is necessary to facilitate population rehabilitation and recruitment monitoring in large systems with extensive riverine and lacustrine habitats. We used a variety of sampling methods to capture subadult Lake Sturgeon (i.e., fish between 75 and 130 cm TL that had not...
Use of navigation channels by Lake Sturgeon: Does channelization increase vulnerability of fish to ship strikes?
Darryl W. Hondorp, David Bennion, Edward F. Roseman, Christopher M. Holbrook, James C. Boase, Justin A. Chiotti, Michael V. Thomas, Todd C. Wills, Richard Drouin, Steven T. Kessel, Charles C. Krueger
2017, PLoS ONE (12)
Channelization for navigation and flood control has altered the hydrology and bathymetry of many large rivers with unknown consequences for fish species that undergo riverine migrations. In this study, we investigated whether altered flow distributions and bathymetry associated with channelization attracted migrating Lake Sturgeon (Acipenser fulvescens) into commercial navigation channels,...
How well do route survey areas represent landscapes at larger spatial extents? An analysis of land cover composition along Breeding Bird Survey routes
Joseph A. Veech, Keith L. Pardieck, David Ziolkowski
2017, Condor (119) 607-615
The occurrence of birds in a survey unit is partly determined by the habitat present. Moreover, some bird species preferentially avoid some land cover types and are attracted to others. As such, land cover composition within the 400 m survey areas along a Breeding Bird Survey (BBS) route clearly influences...
Porosity and pore size distribution in a sedimentary rock: Implications for the distribution of chlorinated solvents
Allen M. Shapiro, Chrsitopher E. Evans, Erin C. Hayes
2017, Journal of Contaminant Hydrology (203) 70-84
Characterizing properties of the rock matrix that control retention and release of chlorinated solvents is essential in evaluating the extent of contamination and the application of remediation technologies in fractured rock. Core samples from seven closely spaced boreholes in a mudstone subject to trichloroethene (TCE) contamination were analyzed using Mercury...
Landscape capability predicts upland game bird abundance and occurrence
Zachary G. Loman, Erik J. Blomberg, William DeLuca, Daniel J. Harrison, Cyndy Loftin, Petra B. Wood
2017, Journal of Wildlife Management (81) 1110-1116
Landscape capability (LC) models are a spatial tool with potential applications in conservation planning. We used survey data to validate LC models as predictors of occurrence and abundance at broad and fine scales for American woodcock (Scolopax minor) and ruffed grouse (Bonasa umbellus). Landscape capability models were reliable predictors of...
Study of responses of 64-story Rincon Building to Napa, Fremont, Piedmont, San Ramon earthquakes and ambient motions
Mehmet Çelebi, John Hooper, Ron Klemencic
2017, Earthquake Spectra (33) 1125-1148
We analyze the recorded responses of a 64-story, instrumented, concrete core shear wall building in San Francisco, California, equipped with tuned sloshing liquid dampers (TSDs) and buckling restraining braces (BRBs). Previously, only ambient data from the 72-channel array in the building were studied (Çelebi et al. 2013). Recently,...
A multi-species synthesis of physiological mechanisms in drought-induced tree mortality
Henry D. Adams, Melanie Zeppel, William R.L. Anderegg, Henrik Hartmann, Simon M. Landhausser, David T. Tissue, Travis E. Huxman, Patrick J. Hudson, Trenton E. Franz, Craig D. Allen, Leander D. L. Anderegg, Greg A. Barron-Gafford, David Beerling, David D. Breshears, Timothy J. Brodribb, Harald Bugmann, Richard C. Cobb, Adam D. Collins, L. Turin Dickman, Honglang Duan, Brent E. Ewers, Lucia Galiano, David A. Galvez, Nuria Garcia-Forner, Monica L. Gaylord, Matthew J. Germino, Arthur Gessler, Uwe G. Hacke, Rodrigo Hakamada, Andy Hector, Michael W. Jenkins, Jeffrey M. Kane, Thomas E. Kolb, Darin J. Law, James D. Lewis, Jean-Marc Limousin, David Love, Alison K. Macalady, Jordi Martínez-Vilalta, Maurizio Mencuccini, Patrick J. Mitchell, Jordan D. Muss, Michael J. O’Brien, Anthony P. O’Grady, Robert E. Pangle, Elizabeth A. Pinkard, Frida I. Piper, Jennifer Plaut, William T. Pockman, Joe Quirk, Keith Reinhardt, Francesco Ripullone, Michael G. Ryan, Anna Sala, Sanna Sevanto, John S. Sperry, Rodrigo Vargas, Michel Vennetier, Danielle A. Way, Chonggang Wu, Enrico A. Yepez, Nate G. McDowell
2017, Nature Ecology & Evolution (1) 1285-1291
Widespread tree mortality associated with drought has been observed on all forested continents and global change is expected to exacerbate vegetation vulnerability. Forest mortality has implications for future biosphere–atmosphere interactions of carbon, water and energy balance, and is poorly represented in dynamic vegetation models. Reducing uncertainty requires improved mortality projections...
Climate-induced trends in predator–prey synchrony differ across life-history stages of an anadromous salmonid
Donovan A. Bell, Ryan Kovach, Scott C. Vulstek, John E. Joyce, David A. Tallmon
2017, Canadian Journal of Fisheries and Aquatic Sciences (74) 1431-1438
Differential climate-induced shifts in phenology can create mismatches between predators and prey, but few studies have examined predator–prey mismatch across multiple life-history stages. We used long-term data from a warming stream with shifting salmonid migration timings to quantify intra-annual migration synchrony between predatory Dolly Varden (Salvelinus malma) and Pacific salmon...
Characterizing meteorological and hydrologic conditions associated with shallow landslide initiation in the coastal bluffs of the Atlantic Highlands, New Jersey
Francis Ashland, Alex R. Fiore, Pamela A. Reilly
Jerome V. De Graff, Abdul Shakoor, editor(s)
2017, Conference Paper, Landslides: Putting Experience, Knowledge and Emerging Technologies into Practice:Special Publication 27
Meteorological and hydrologic conditions associated with shallow landslide initiation in the coastal bluffs of the Atlantic Highlands, New Jersey remain undocumented despite a history of damaging slope movement extending back to at least 1903. This study applies an empirical approach to quantify the rainfall conditions leading to shallow landsliding based...
Systems approaches for coastal hazard assessment and resilience
Scott C. Hagen, Davina Passeri, Matthew V. Bilskie, Denise E. DeLorme, David Yoskowitz
2017, Book chapter, Oxford Research Encyclopedia of Natural Hazard Science
The framework presented herein supports a changing paradigm in the approaches used by coastal researchers, engineers, and social scientists to model the impacts of climate change and sea level rise (SLR) in particular along low-gradient coastal landscapes. Use of a System of Systems (SoS) approach to the coastal dynamics of...
Connecting crustal seismicity and earthquake-driven stress evolution in Southern California
Frederick Pollitz, Camilla Cattania
2017, Journal of Geophysical Research B: Solid Earth (122) 6473-6490
Tectonic stress in the crust evolves during a seismic cycle, with slow stress accumulation over interseismic periods, episodic stress steps at the time of earthquakes, and transient stress readjustment during a postseismic period that may last months to years. Static stress transfer to surrounding faults has been well documented to...
Rapid response for invasive waterweeds at the arctic invasion front: Assessment of collateral impacts from herbicide treatments
Suresh Sethi, Michael P. Carey, John M. Morton, Edgar Guerron-Orejuela, Robert Decino, Mark Willette, James Boersma, Jillian Jablonski, Cheryl Anderson
2017, Biological Conservation (212) 300-309
The remoteness of subarctic and arctic ecosystems no longer protects against invasive species introductions. Rather, the mix of urban hubs surrounded by undeveloped expanses creates a ratchet process whereby anthropogenic activity is sufficient to introduce and spread invaders, but for which the costs of monitoring and managing remote ecosystems is...
