Using the North American Breeding Bird Survey to assess broad-scale response of the continent's most imperiled avian community, grassland birds, to weather variability
Jessica Gorzo, Anna M. Pidgeon, Wayne E. Thogmartin, Andrew J. Allstadt, Volker C. Radeloff, Patricia J. Heglund, Stephen J. Vavrus
2016, The Condor (118) 502-512
Avian populations can respond dramatically to extreme weather such as droughts and heat waves, yet patterns of response to weather at broad scales remain largely unknown. Our goal was to evaluate annual variation in abundance of 14 grassland bird species breeding in the northern mixed-grass prairie in relation to annual...
Novel cell-based assay for detection of thyroid receptor beta-interacting environmental contaminants
Diana A. Stavreva, Lyuba Varticovski, Ludmila Levkova, Anuja A. George, Luke Davis, Gianluca Pegoraro, Vicki S. Blazer, Luke R. Iwanowicz, Gordon L. Hager
2016, Toxicology (368-369) 69-79
Even though the presence of endocrine disrupting chemicals (EDCs) with thyroid hormone (TH)-like activities in the environment is a major health concern, the methods for their efficient detection and monitoring are still limited. Here we describe a novel cell assay, based on the translocation of a green fluorescent protein (GFP)—tagged...
Measuring, interpreting, and responding to changes in coral reefs: A challenge for biologists, geologist, and managers
Caroline S. Rogers, Jeff Miller
Dennis K. Hubbard, Caroline S. Rogers, Jere H. Lipps, George D. Stanley Jr., editor(s)
2016, Book chapter, Coral reefs at the crossroads
What, exactly, is a coral reef? And how have the world’s reefs changed in the last several decades? What are the stressors undermining reef structure and function? Given the predicted effects of climate change, do reefs have a future? Is it possible to “manage” coral reefs for resilience?...
Teleconnected ocean forcing of Western North American droughts and pluvials during the last millennium
Cody C. Routson, Connie A. Woodhouse, Jonathan T. Overpeck, Julio L. Betancourt, Nicholas P. McKay
2016, Quaternary Science Reviews (146) 238-250
Western North America (WNA) is rich in hydroclimate reconstructions, yet questions remain about the causes of decadal-to-multidecadal hydroclimate variability. Teleconnection patterns preserved in annually-resolved tree-ring reconstructed drought maps, and anomalies in a global network of proxy sea surface temperature (SST) reconstructions, were used to reassess the evidence linking ocean forcing...
Smokey comes of age: Unmanned aerial systems for fire management
Dirac Twidwell, Craig R. Allen, Carrick Detweiler, James Higgins, Christian Laney, Sebastian Elbaum
2016, Frontiers in Ecology and the Environment (14) 333-339
During the past century, fire management has focused on techniques both to protect human communities from catastrophic wildfire and to maintain fire-dependent ecological systems. However, despite a large and increasing allocation of resources and personnel to achieve these goals, fire management objectives at regional to global scales are not being...
The influence of vegetation cover on debris-flow density during an extreme rainfall in the northern Colorado Front Range
Francis K. Rengers, Luke McGuire, Jeffrey A. Coe, Jason W. Kean, Rex L. Baum, Dennis M. Staley, Jonathan W. Godt
2016, Geology (44) 823-826
We explored regional influences on debris-flow initiation throughout the Colorado Front Range (Colorado, USA) by exploiting a unique data set of more than 1100 debris flows that initiated during a 5 day rainstorm in 2013. Using geospatial data, we examined the influence of rain, hillslope angle, hillslope aspect, and vegetation...
Damage and recovery assessment of the Philippines' mangroves following Super Typhoon Haiyan
Jordan Long, Chandra Giri, Jurgene H. Primavera, Mandar Trivedi
2016, Marine Pollution Bulletin (109) 734-743
We quantified mangrove disturbance resulting from Super Typhoon Haiyan using a remote sensing approach. Mangrove areas were mapped prior to Haiyan using 30 m Landsat imagery and a supervised decision-tree classification. A time sequence of 250 m eMODIS data was used to monitor mangrove condition prior to, and following, Haiyan. Based on...
Advancing environmental flow science: Developing frameworks for altered landscapes and integrating efforts across disciplines.
Shannon K. Brewer, Ryan A. McManamay, Andrew D. Miller, Robert Mollenhauer, Thomas A. Worthington, Tom Arsuffi
2016, Environmental Management (58) 175-192
Environmental flows represent a legal mechanism to balance existing and future water uses and sustain non-use values. Here, we identify current challenges, provide examples where they are important, and suggest research advances that would benefit environmental flow science. Specifically, environmental flow science would benefit by (1) developing approaches...
Comment on “Geochemistry of buried river sediments from Ghaggar Plains, NW India: Multi-proxy records of variations in provenance, paleoclimate, and paleovegetation patterns in the late quaternary” by Ajit Singh, Debajyoti Paul, Rajiv Sinha, Kristina J. Thomsen, Sanjeev Gupta
Peter D. Clift, Liviu Giosan, Amy E. East
2016, Palaeogeography, Palaeoclimatology, Palaeoecology (455) 65-67
Singh et al. (2016) published a geochemical record of sediment compositions from the flood plain of the Ghaggar River in western India and use the changing provenance, particularly as traced by Nd isotope composition, to reconstruct how erosion patterns have changed over the past 100 k.y. In doing so they...
Insights into plant water uptake from xylem-water isotope measurements in two tropical catchments with contrasting moisture conditions
Jaivime Evaristo, Jeffrey J. McDonnell, Martha A. Scholl, L. Adrian Bruijnzeel, Kwok P. Chun
2016, Hydrological Processes (30) 3210-3227
Water transpired by trees has long been assumed to be sourced from the same subsurface water stocks that contribute to groundwater recharge and streamflow. However, recent investigations using dual water stable isotopes have shown an apparent ecohydrological separation between tree-transpired water and stream water. Here we present evidence for such...
Does resolution of flow field observation influence apparent habitat use and energy expenditure in juvenile coho salmon?
Desiree D. Tullos, Cara Walter, Jason B. Dunham
2016, Water Resources Research (52) 5938-5950
This study investigated how the resolution of observation influences interpretation of how fish, juvenile Coho Salmon (Oncorhynchus kisutch), exploit the hydraulic environment in streams. Our objectives were to evaluate how spatial resolution of the flow field observation influenced: (1) the velocities considered to be representative of habitat units; (2) patterns...
Land use in the Northern Great Plains region of the U.S. influences the survival and productivity of honey bee colonies
Matthew Smart, Jeff S. Pettis, Ned H. Jr. Euliss, Marla S. Spivak
2016, Agriculture, Ecosystems and Environment (230) 139-149
The Northern Great Plains region of the US annually hosts a large portion of commercially managed U.S. honey bee colonies each summer. Changing land use patterns over the last several decades have contributed to declines in the availability of bee forage across the region, and the future sustainability of the...
Fortnightly modulation of San Andreas tremor and low-frequency earthquakes
Nicholas van der Elst, Andrew Delorey, David R. Shelly, Paul Johnson
2016, Proceedings of the National Academy of Sciences (113) 8601-8605
Earth tides modulate tremor and low-frequency earthquakes (LFEs) on faults in the vicinity of the brittle−ductile (seismic−aseismic) transition. The response to the tidal stress carries otherwise inaccessible information about fault strength and rheology. Here, we analyze the LFE response to the fortnightly tide, which modulates the amplitude of the daily...
The Mississippi River: A place for fish
Harold Schramm, Brian Ickes
Yushun Chen, Duane Chapman, John Jackson, Daqing Chen, Zhongjie Li, Jack Kilgore, Quinton E. Phelps, Michael Eggleton, editor(s)
2016, Book chapter, Fishery Resources, Environment, and Conservation in the Mississippi and Yangtze (Changjiang) River Basins
The Mississippi River flows 3,734 km from its source at Lake Itasca, Minnesota to its outlet at the Gulf of Mexico. Along its course, it collects water from portions of two Canadian provinces and 41 % of the conterminous United States. Although greatly altered for navigation and flood control throughout...
Applications for General Purpose Command Buffers: The Emergency Conjunction Avoidance Maneuver
Robert J Scheid, Martin England
2016, Conference Paper, SpaceOps 2016 Conference
A case study is presented for the use of Relative Operation Sequence (ROS) command buffers to quickly execute a propulsive maneuver to avoid a collision with space debris. In this process, a ROS is custom-built with a burn time and magnitude, uplinked to the spacecraft, and executed in 15 percent...
Transmission of influenza reflects seasonality of wild birds across the annual cycle
Nichola J. Hill, Brandt W. Meixell, Eric J. Ma, Mark S. Lindberg, Walter M. Boyce, Jonathan A. Runstadler
2016, Ecology Letters (19) 915-925
Influenza A Viruses (IAV) in nature must overcome shifting transmission barriers caused by the mobility of their primary host, migratory wild birds, that change throughout the annual cycle. Using a phylogenetic network of viral sequences from North American wild birds (2008–2011) we demonstrate a shift from intraspecific to interspecific transmission...
Synchrony of Piping Plover breeding populations in the U.S. Northern Great Plains
Erin A. Roche, Terry L. Shaffer, Colin M. Dovichin, Mark H. Sherfy, Michael J. Anteau, Mark T. Wiltermuth
2016, Condor (118) 558-570
Local populations that fluctuate synchronously are at a greater risk of extinction than those that do not. The closer the geographic proximity of populations, the more prone they are to synchronizing. Shorebird species select habitat broadly, and many breed across regions with diverse nesting habitat types. Under these conditions, nearby...
Urban base flow with low impact development
Aditi Bhaskar, Dianna M. Hogan, Stacey A. Archfield
2016, Hydrological Processes (30) 3156-3171
A novel form of urbanization, low impact development (LID), aims to engineer systems that replicate natural hydrologic functioning, in part by infiltrating stormwater close to the impervious surfaces that generate it. We sought to statistically evaluate changes in a base flow regime because of urbanization with LID, specifically changes in...
Multispecies cccupancy modeling as a tool for evaluating the status and distribution of Darters in the Elk River, Tennessee
Kathryn M. Potoka, Colin P. Shea, Phillip William Bettoli
2016, Transactions of the American Fisheries Society (145) 1110-1121
Sixteen darter species, including the federally endangered Boulder Darter Etheostoma wapiti, are known to occur in the Elk River, a large, flow-regulated tributary of the Tennessee River, Tennessee–Alabama. Since the construction of Tims Ford Dam (TFD) in 1970, habitat modification caused by cold, hypolimnetic water releases and peak-demand hydropower generation...
Noncontact methods for measuring water-surface elevations and velocities in rivers: Implications for depth and discharge extraction
Jonathan M. Nelson, Paul J. Kinzel, Richard R. McDonald, Mark Schmeeckle
2016, Conference Paper, RiverFlow 2016
Recently developed optical and videographic methods for measuring water-surface properties in a noninvasive manner hold great promise for extracting river hydraulic and bathymetric information. This paper describes such a technique, concentrating on the method of infrared videog- raphy for measuring surface velocities and both acoustic (laboratory-based) and laser-scanning (field-based) techniques for...
Adaptive harvest management for the Svalbard population of pink‐footed geese: 2016 progress summary: Technical Report from DCE – Danish Centre for Environment and Energy, No. 86
Fred A. Johnson, Jesper Madsen
2016, Report
This document describes progress to date on the development of an adaptive harvest management strategy for maintaining the Svalbard population of pink‐footed geese (Anser brachyrhynchus) near their agreed target level (60,000) by providing for sustainable harvests in Norway and Denmark. This report provides an assessment of the most recent monitoring information...
Field scale test of multi-dimensional flow and morphodynamic simulations used for restoration design analysis
Richard R. McDonald, Jonathan M. Nelson, Ryan L. Fosness, Peter O. Nelson
George Constantinescu, Marcelo H. Garcia, Dan Hanes, editor(s)
2016, Conference Paper, RiverFlow 2016
Two- and three-dimensional morphodynamic simulations are becoming common in studies of channel form and process. The performance of these simulations are often validated against measurements from laboratory studies. Collecting channel change information in natural settings for model validation is difficult because it can be expensive and under most channel forming...
Volcanic geology, hydrogeology, and geothermal potential of the eastern Snake River Plain
Michael McCurry, Roy C. Bartholomay, Mary K. V. Hodges, Robert Podgorney
2016, Northwest Geology (45) 125-154
No abstract available....
The road to NHDPlus — Advancements in digital stream networks and associated catchments
Richard B. Moore, Thomas A. Dewald
2016, Journal of the American Water Resources Association (52) 890-900
A progression of advancements in Geographic Information Systems techniques for hydrologic network and associated catchment delineation has led to the production of the National Hydrography Dataset Plus (NHDPlus). NHDPlus is a digital stream network for hydrologic modeling with catchments and a suite of related geospatial data. Digital stream networks with...
Carbon and energy fluxes in cropland ecosystems: a model-data comparison
E. Lokupitiya, A. Scott Denning, K. Schaefer, D. Ricciuto, R. Anderson, M. A. Arain, I. Baker, A. G. Barr, G. Chen, J.M. Chen, P. Ciais, D.R. Cook, M.C. Dietze, M. El Maayar, M. Fischer, R. Grant, D. Hollinger, C. Izaurralde, A. Jain, C.J. Kucharik, Z. Li, S. Liu, L. Li, R. Matamala, P. Peylin, D. Price, S. W. Running, A. Sahoo, M. Sprintsin, A.E. Suyker, H. Tian, Christina Tonitto, M.S. Torn, Hans Verbeeck, S.B. Verma, Y. Xue
2016, Biogeochemistry (128) 53-76
Croplands are highly productive ecosystems that contribute to land–atmosphere exchange of carbon, energy, and water during their short growing seasons. We evaluated and compared net ecosystem exchange (NEE), latent heat flux (LE), and sensible heat flux (H) simulated by a suite of ecosystem models at five agricultural eddy covariance flux...
