New organic reference materials for hydrogen, carbon, and nitrogen stable isotope-ratio measurements: caffeines, n-alkanes, fatty acid methyl esters, glycines, L-valines, polyethylenes, and oils
Arndt Schimmelmann, Haiping Qi, Tyler B. Coplen, Willi A. Brand, Jon Fong, Wolfram Meier-Augenstein, Helen F. Kemp, Blaza Toman, Annika Ackermann, Sergey Assonov, Anita Aerts-Bijma, Ramona Brejcha, Yoshito Chikaraishi, Tamim Darwish, Martin Elsner, Matthias Gehre, Heike Geilmann, Manfred Groning, Jean-Francois Helie, Sara Herrero-Martin, Harro A.J. Meijer, Peter E. Sauer, Alex L. Sessions, Roland A. Werner
2016, Analytical Chemistry (88) 4294-4302
An international project developed, quality-tested, and determined isotope−δ values of 19 new organic reference materials (RMs) for hydrogen, carbon, and nitrogen stable isotope-ratio measurements, in addition to analyzing pre-existing RMs NBS 22 (oil), IAEA-CH-7 (polyethylene foil), and IAEA-600 (caffeine). These new RMs enable users to normalize measurements of samples to...
Haemosporidian parasite infections in grouse and ptarmigan: Prevalence and genetic diversity of blood parasites in resident Alaskan birds
Matthew M. Smith, Caroline R. Van Hemert, Richard Merizon
2016, International Journal for Parasitology: Parasites and Wildlife (5) 229-239
Projections related to future climate warming indicate the potential for an increase in the distribution and prevalence of blood parasites in northern regions. However, baseline data are lacking for resident avian host species in Alaska. Grouse and ptarmigan occupy a diverse range of habitat types throughout the northern hemisphere and...
Uncertainty quantification and propagation for projections of extremes in monthly area burned under climate change: A case study in the coastal plain of Georgia, USA
Adam J. Terando, Brian J. Reich, Krishna Pacifici, Jennifer Costanza, Alexa McKerrow, Jaime A. Collazo
Karin L. Riley, Peter Webley, Matthew Thompson, editor(s)
2016, Book chapter, Natural hazard uncertainty assessment: Modeling and decision support
Human‐caused climate change is predicted to affect the frequency of hazard‐linked extremes. Unusually large wildfires are a type of extreme event that is constrained by climate and can be a hazard to society but also an important ecological disturbance. This chapter focuses on changes in the frequency of extreme monthly...
Graphical function mapping as a new way to explore cause-and-effect chains
Mary Anne Evans
2016, Fisheries (41) 638-643
Graphical function mapping provides a simple method for improving communication within interdisciplinary research teams and between scientists and nonscientists. This article introduces graphical function mapping using two examples and discusses its usefulness. Function mapping projects the outcome of one function into another to show the combined effect. Using this mathematical...
Unmanned aircraft systems in wildlife research: Current and future applications of a transformative technology
Katherine S. Christie, Sophie L. Gilbert, Casey L. Brown, Michael Hatfield, Leanne Hanson
2016, Frontiers in Ecology and the Environment (14) 241-251
Unmanned aircraft systems (UAS) – also called unmanned aerial vehicles (UAVs) or drones – are an emerging tool that may provide a safer, more cost-effective, and quieter alternative to traditional research methods. We review examples where UAS have been used to document wildlife abundance, behavior, and habitat, and illustrate the...
Anti-dog IgG secondary antibody successfully detects IgG in a variety of aquatic mammals
Katherine Roehl, Mark D. Jankowski, Erik K. Hofmeister
2016, Journal of Zoo and Wildlife Medicine (47) 970-976
Serological tests play an important role in the detection of wildlife diseases. However, while there are many commercial assays and reagents available for domestic species, there is a need to develop efficient serological assays for wildlife. In recent years, marine mammals have represented a wildlife group with emerging infectious diseases,...
Deglacial temperature history of West Antarctica
Kurt M. Cuffey, Gary D. Clow, Eric J. Steig, Christo Buizert, T.J. Fudge, Michelle Koutnik, Edwin D. Waddington, Richard B. Alley, Jeffrey P. Severinghaus
2016, Proceedings of the National Academy of Sciences (113) 14249-14254
The most recent glacial to interglacial transition constitutes a remarkable natural experiment for learning how Earth’s climate responds to various forcings, including a rise in atmospheric CO2. This transition has left a direct thermal remnant in the polar ice sheets, where the exceptional purity and continual accumulation of ice permit...
Multidecadal increases in the Yukon River Basin of chemical fluxes as indicators of changing flowpaths, groundwater, and permafrost
Ryan C. Toohey, Nicole M. Herman-Mercer, Paul F. Schuster, Edda A. Mutter, Joshua C. Koch
2016, Geophysical Research Letters (43) 12120-12130
The Yukon River Basin, underlain by discontinuous permafrost, has experienced a warming climate over the last century that has altered air temperature, precipitation, and permafrost. We investigated a water chemistry database from 1982 to 2014 for the Yukon River and its major tributary, the Tanana River. Significant increases of Ca,...
Gray wolf exposure to emerging vector-borne diseases in Wisconsin with comparison to domestic dogs and humans
Rocio F. Jara, Adrian P. Wydeven, Michael D. Samuel
2016, PLoS ONE (11) 1-17
World-wide concern over emerging vector-borne diseases has increased in recent years for both animal and human health. In the United Sates, concern about vector-borne diseases in canines has focused on Lyme disease, anaplasmosis, ehrlichiosis, and heartworm which infect domestic and wild canids. Of these diseases, Lyme and anaplasmosis are also...
Conservation status of polar bears (Ursus maritimus) in relation to projected sea-ice declines
Eric V. Regehr, Kristin L. Laidre, H. Resit Akcakaya, Steven C. Amstrup, Todd C. Atwood, Nicholas J. Lunn, Martyn E. Obbard, Harry Stern, Gregory W. Thiemann, Øystein Wiig
2016, Biology Letters (12) 1-5
Loss of Arctic sea ice owing to climate change is the primary threat to polar bears throughout their range. We evaluated the potential response of polar bears to sea-ice declines by (i) calculating generation length (GL) for the species, which determines the timeframe for conservation assessments; (ii) developing a standardized...
Detection of water and/or hydroxyl on asteroid (16) Psyche
Driss Takir, Vishnu Reddy, Juan A. Sanchez, Michael K. Shepard, Joshua P. Emery
2016, Astronomical Journal (153)
In order to search for evidence of hydration on M-type asteroid (16) Psyche, we observed this object in the 3 μm spectral region using the long-wavelength cross-dispersed (LXD: 1.9–4.2 μm) mode of the SpeX spectrograph/imager at the NASA Infrared Telescope Facility. Our observations show that Psyche exhibits a 3 μm absorption feature, attributed...
Application of activity sensors for estimating behavioral patterns
Caleb P. Roberts, James W. Cain III, Robert D. Cox
2016, Wildlife Society Bulletin (40) 764-771
The increasing use of Global Positioning System (GPS) collars in habitat selection studies provides large numbers of precise location data points with reduced field effort. However, inclusion of activity sensors in many GPS collars also grants the potential to remotely estimate behavioral state. Thus, only using GPS collars to collect...
Observed and simulated hydrologic response for a first-order catchment during extreme rainfall 3 years after wildfire disturbance
Brian A. Ebel, Francis K. Rengers, Gregory E. Tucker
2016, Water Resources Research (52) 9367-9389
Hydrologic response to extreme rainfall in disturbed landscapes is poorly understood because of the paucity of measurements. A unique opportunity presented itself when extreme rainfall in September 2013 fell on a headwater catchment (i.e., <1 ha) in Colorado, USA that had previously been burned by a wildfire in 2010. We...
Gopherus agassizii (Mohave Desert Tortoise). Probable rattlesnake envenomation
Kristin H. Berry, Timothy A. Shields, Elliott R. Jacobson
2016, Herpetological Review (47) 652-653
No abstract available....
Complete genome sequence of a novel aquareovirus that infects the endangered fountain darter, Etheostoma fonticola
Luke R. Iwanowicz, Deborah D. Iwanowicz, Cynthia R. Adams, Teresa D. Lewis, Thomas M. Brandt, Robert S. Cornman, Lakyn R. Sanders
2016, Genome Announcements (4)
Here, we report the complete genome of a novel aquareovirus isolated from clinically normal fountain darters, Etheostoma fonticola, inhabiting the San Marcos River, Texas, USA. The complete genome consists of 23,958 bp consisting of 11 segments that range from 783 bp (S11) to 3,866 bp (S1)....
Geologic map and cross sections of the Embudo Fault Zone in the Southern Taos Valley, Taos County, New Mexico
Paul W. Bauer, Keith I. Kelson, V. J. S. Grauch, Benjamin J. Drenth, Peggy S. Johnson, Scott B. Aby, Brigitte Felix
2016, Open-File Report 584
The southern Taos Valley encompasses the physiographic and geologic transition zone between the Picuris Mountains and the San Luis Basin of the Rio Grande rift. The Embudo fault zone is the rift transfer structure that has accommodated the kinematic disparities between the San Luis Basin and the Española Basin during...
Trace elements at the intersection of marine biological and geochemical evolution
Leslie J. Robbins, Stefan V. Lalonde, Noah J. Planavsky, Camille A. Partin, Christopher T. Reinhard, Brian Kendall, Clint Scott, Dalton S. Hardisty, Benjamin C. Gill, Daniel S. Alessi, Christopher L. Dupont, Mak A. Saito, Sean A. Crowe, Simon W. Poulton, Andrey Bekker, Timothy W. Lyons, Kurt O. Konhauser
2016, Earth-Science Reviews (163) 323-348
Life requires a wide variety of bioessential trace elements to act as structural components and reactive centers in metalloenzymes. These requirements differ between organisms and have evolved over geological time, likely guided in some part by environmental conditions. Until recently, most of what was understood regarding trace element concentrations in...
Spatial and ecological variation in dryland ecohydrological responses to climate change: implications for management
Kyle A. Palmquist, Daniel R. Schlaepfer, John B. Bradford, William K. Lauenroth
2016, Ecosphere (7)
Ecohydrological responses to climate change will exhibit spatial variability and understanding the spatial pattern of ecological impacts is critical from a land management perspective. To quantify climate change impacts on spatial patterns of ecohydrology across shrub steppe ecosystems in North America, we asked the following question: How will climate change...
Perspectives on bay-delta science and policy
Michael Healey, Michael D. Dettinger, Richard Norgaard
2016, San Francisco Estuary and Watershed Science (14) 1-25
The State of Bay–Delta Science 2008 highlighted seven emerging perspectives on science and management of the Delta. These perspectives had important effects on policy and legislation concerning management of the Delta ecosystem and water exports. From the collection of papers that make up the State of Bay–Delta Science 2016, we...
Geology of the western Piedmont in Virginia
James P. Hibbard, James S. Beard, William S. Henika, J. Wright Horton Jr.
Christopher M. Bailey, W. Cullen Sherwood, L. Scott Eaton, David S. Powars, editor(s)
2016, Virginia Museum of Natural History Special Publication 18
No abstract available....
Development of an adaptive harvest management program for Taiga bean geese
Fred A. Johnson, Mikko Alhainen, Anthony D. Fox, Jesper Madsen
2016, Conference Paper, First meeting of the AEWA European Goose Management International Working Group
This report describes recent progress in specifying the elements of an adaptive harvest program for taiga bean goose. It describes harvest levels appropriate for first rebuilding the population of the Central Management Unit and then maintaining it near the goal specified in the AEWA International Single Species Action Plan (ISSAP)....
Thamnophis marcianus (Checkered Gartersnake). USA: Arizona: Yuma and La Paz Counties: Colorado River
Ryan Munes, Robert Reed, Bryan Falk, Ashley Lauren Hall, Andrew Holycross
2016, Herpetological Review (47) 631-632
No abstract available....
Geology of the eastern Piedmont in Virginia
J. Wright Horton Jr., Brent E. Owens, Paul C. Hackley, William C. Burton, Paul E. Sacks, James P. Hibbard
Christopher M. Bailey, W. Cullen Sherwood, L. Scott Eaton, David S. Powars, editor(s)
2016, Book chapter, The geology of Virginia (Virginia Museum of Natural History Special Publication 18)
No abstract available....
Genome sequence of the photoarsenotrophic bacterium Ectothiorhodospira sp. strain BSL-9, isolated from a hypersaline alkaline arsenic-rich extreme environment
Jaime Hernandez-Maldonado, Brendon Stoneburner, Alison Boren, Laurence Miller, Michael R. Rosen, Ronald S. Oremland, Chad W Saltikov
2016, Genome Announcements (4) 1-2
The full genome sequence of Ectothiorhodospira sp. strain BSL-9 is reported here. This purple sulfur bacterium encodes an arxA-type arsenite oxidase within the arxB2AB1CD gene island and is capable of carrying out “photoarsenotrophy” anoxygenic photosynthetic arsenite oxidation. Its genome is composed of 3.5 Mb and has approximately 63% G+C content....
A new strategy for earthquake focal mechanisms using waveform-correlation-derived relative polarities and cluster analysis: Application to the 2014 Long Valley Caldera earthquake swarm
David R. Shelly, Jeanne L. Hardebeck, William L. Ellsworth, David P. Hill
2016, Journal of Geophysical Research B: Solid Earth (121) 8622-8641
In microseismicity analyses, reliable focal mechanisms can typically be obtained for only a small subset of located events. We address this limitation here, presenting a framework for determining robust focal mechanisms for entire populations of very small events. To achieve this, we resolve relative P and S wave polarities between...
