A revision in hydrogen isotopic composition of USGS42 and USGS43 human-hair stable isotopic reference materials for forensic science
Tyler B. Coplen, Haiping Qi
2016, Forensic Science International (266) 222-225
The hydrogen isotopic composition (δ2HVSMOW-SLAP) of USGS42 and USGS43 human hair stable isotopic reference materials, normalized to the VSMOW (Vienna-Standard Mean Ocean Water)–SLAP (Standard Light Antarctic Precipitation) scale, was originally determined with a high temperature conversion technique using an elemental analyzer (TC/EA) with a glassy carbon tube and glassy carbon...
Accommodation space in a high-wave-energy inner-shelf during the Holocene marine transgression: Correlation of onshore and offshore inner-shelf deposits (0–12 ka) in the Columbia River littoral cell system, Washington and Oregon, USA
C. D. Peterson, D. C. Twichell, M. C. Roberts, S. Vanderburgh, Steven W. Hostetler
2016, Marine Geology (379) 140-156
The Columbia River Littoral Cell (CRLC), a high-wave-energy littoral system, extends 160 km alongshore, generally north of the large Columbia River, and 10–15 km in across-shelf distance from paleo-beach backshores to about 50 m present water depths. Onshore drill holes (19 in number and 5–35 m in subsurface depth) and offshore vibracores (33 in...
Mapping changing distributions of dominant species in oil-contaminated salt marshes of Louisiana using imaging spectroscopy
Michael Beland, Dar A. Roberts, Seth H. Peterson, Trent W. Biggs, Raymond F. Kokaly, Sarai Piazza, Keely L. Roth, Shruti Khanna, Susan L. Ustin
2016, Remote Sensing of Environment (182) 192-207
The April 2010 Deepwater Horizon (DWH) oil spill was the largest coastal spill in U.S. history. Monitoring subsequent change in marsh plant community distributions is critical to assess ecosystem impacts and to establish future coastal management priorities. Strategically deployed airborne imaging spectrometers, like the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS),...
Test of a foraging-bioenergetics model to evaluate growth dynamics of endangered pallid sturgeon (Scaphirhynchus albus)
David Deslauriers, Laura B. Heironimus, Steven R. Chipps
2016, Ecological Modelling (336) 1-12
Factors affecting feeding and growth of early life stages of the federally endangered pallid sturgeon (Scaphirhynchus albus) are not fully understood, owing to their scarcity in the wild. In this study was we evaluated the performance of a combined foraging-bioenergetics model as a tool for assessing growth of age-0 pallid...
Iron oxide minerals in dust-source sediments from the Bodélé Depression, Chad: Implications for radiative properties and Fe bioavailability of dust plumes from the Sahara
Bruce M. Moskowitz, Richard L. Reynolds, Harland L. Goldstein, Thelma Beroquo, Raymond F. Kokaly, Charlie S Bristow
2016, Aeolian Research (22) 93-106
Atmospheric mineral dust can influence climate and biogeochemical cycles. An important component of mineral dust is ferric oxide minerals (hematite and goethite) which have been shown to influence strongly the optical properties of dust plumes and thus affect the radiative forcing of global dust. Here we report on the iron...
Proximate influences on female dispersal in white-tailed deer
Clayton L. Lutz, Duane R. Diefenbach, Christopher S. Rosenberry
2016, Journal of Wildlife Management (80) 1218-1226
Ultimate causes of animal dispersal have been hypothesized to benefit the dispersing individual because dispersal reduces competition for local resources, potential for inbreeding, and competition for breeding partners. However, proximate cues influence important features of dispersal behavior, including when dispersal occurs, how long it lasts, and direction, straightness, and distance...
Life history characteristics and vital rates of Yellowstone Cutthroat Trout in two headwater basins
Patrick Uthe, Robert K. Al-Chokhachy, Alexander V. Zale, Bradley B. Shepard, Thomas E. McMahon, Tracy Stephens
2016, North American Journal of Fisheries Management (36) 1240-1253
The Yellowstone Cutthroat Trout Oncorhynchus clarkii bouvieri is native to the Rocky Mountains and has declined in abundance and distribution as a result of habitat degradation and introduced salmonid species. Many of its remaining strongholds are in headwater basins with minimal human disturbances. Understanding the life histories, vital rates, and...
Invariant polar bear habitat selection during a period of sea ice loss
Ryan H. Wilson, Eric V. Regehr, Karyn D. Rode, Michelle St. Martin
2016, Proceedings of the Royal Society B: Biological Sciences (283)
Climate change is expected to alter many species' habitat. A species' ability to adjust to these changes is partially determined by their ability to adjust habitat selection preferences to new environmental conditions. Sea ice loss has forced polar bears (Ursus maritimus) to spend longer periods annually over less productive waters,...
Chronic wasting disease drives population decline of white-tailed deer
David R. Edmunds, Matthew Kauffman, Brant Schumaker, Frederick G. Lindzey, Walter Cook, Terry J. Kreeger, Ronald Grogan, Todd Cornish
2016, PLoS ONE (11) 1-19
Chronic wasting disease (CWD) is an invariably fatal transmissible spongiform encephalopathy of white-tailed deer, mule deer, elk, and moose. Despite a 100% fatality rate, areas of high prevalence, and increasingly expanding geographic endemic areas, little is known about the population-level effects of CWD in deer. To investigate these effects, we...
Dense lower crust elevates long-term earthquake rates in the New Madrid seismic zone
William Brower Levandowski, Oliver S. Boyd, Leonardo Ramirez-Guzman
2016, Geophysical Research Letters (43) 8499-8510
Knowledge of the local state of stress is critical in appraising intraplate seismic hazard. Inverting earthquake moment tensors, we demonstrate that principal stress directions in the New Madrid seismic zone (NMSZ) differ significantly from those in the surrounding region. Faults in the NMSZ that are incompatible with slip in the...
Evidence for wild waterfowl origin of H7N3 influenza A virus detected in captive-reared New Jersey pheasants
Andrew M. Ramey, Mia Kim Torchetti, Rebecca L. Poulson, Deborah L. Carter, Andrew B. Reeves, Paul Link, Patrick Walther, Camille Lebarbenchon, David E. Stallknecht
2016, Archives of Virology (161) 2519-2526
In August 2014, a low-pathogenic H7N3 influenza A virus was isolated from pheasants at a New Jersey gamebird farm and hunting preserve. In this study, we use phylogenetic analyses and calculations of genetic similarity to gain inference into the genetic ancestry of this virus and to identify potential routes of...
Estimating the effects of 17α-ethinylestradiol on stochastic population growth rate of fathead minnows: a population synthesis of empirically derived vital rates
Adam R. Schwindt, Dana L. Winkelman
2016, Ecotoxicology (25) 1364-1375
Urban freshwater streams in arid climates are wastewater effluent dominated ecosystems particularly impacted by bioactive chemicals including steroid estrogens that disrupt vertebrate reproduction. However, more understanding of the population and ecological consequences of exposure to wastewater effluent is needed. We used empirically derived vital rate estimates from a mesocosm study...
Nesting ecology of Whimbrels in boreal Alaska
Christopher M. Harwood, Robert E. Gill Jr., Abby Powell
2016, Wader Study (123) 99-113
Breeding ecology studies of boreal waders have been relatively scarce in North America. This paucity is due in part to boreal habitats being difficult to access, and boreal waders being widely dispersed and thus difficult to monitor. Between 2008 and 2014 we studied the nesting ecology of Whimbrels Numenius phaeopus hudsonicus in...
Dome growth, collapse, and valley fill at Soufrière Hills Volcano, Montserrat, from 1995 to 2013: Contributions from satellite radar measurements of topographic change
D. W. D. Arnold, J. Biggs, G. Wadge, S. K. Ebmeier, H. M. Odbert, Michael P. Poland
2016, Geosphere (12) 1300-1315
Frequent high-resolution measurements of topography at active volcanoes can provide important information for assessing the distribution and rate of emplacement of volcanic deposits and their influence on hazard. At dome-building volcanoes, monitoring techniques such as LiDAR and photogrammetry often provide a limited view of the area affected by the eruption....
Seiche-induced unsteady flows in the Huron-Erie Corridor: Spectral analysis of oscillations in stage and discharge in the St. Clair and Detroit Rivers
P. Ryan Jackson
G. Contantinescu, M. Garcia, D. Hanes, editor(s)
2016, Conference Paper, Proceedings of the International Conference on Fluvial Hydraulics (River Flows 2016)
Animations of highly dynamic water-surface profiles through the St. Clair and Detroit Rivers have identified transient disturbances propagating from Lakes Huron and Erie into the St. Clair and Detroit Rivers, respectively. To determine any relation to seiche and tidal oscillations on Lakes Huron and Erie, a spectral analysis was performed on...
Restoring sand shinnery oak prairies with herbicide and grazing in New Mexico
Jennifer C. Zavaleta, David A. Haukos, Blake A. Grisham, Clint W. Boal, Charles Dixon
2016, Southwestern Naturalist (61) 225-232
Sand shinnery oak (Quercus havardii) prairies are increasingly disappearing and increasingly degraded in the Southern High Plains of Texas and New Mexico. Restoring and managing sand shinnery oak prairie can support biodiversity, specific species of conservation concern, and livestock production. We measured vegetation response to four treatment combinations of herbicide...
Associations of stream health to altered flow and water temperature in the Sierra Nevada, California
Daren M. Carlisle, S. Mark Nelson, Jason T. May
2016, Ecohydrology (9) 930-941
Alteration of streamflow and thermal conditions may adversely affect lotic invertebrate communities, but few studies have assessed these phenomena using indicators that control for the potentially confounding influence of natural variability. We designed a study to assess how flow and thermal alteration influence stream health – as indicated by the...
Elucidating the role of vegetation in the initiation of rainfall-induced shallow landslides: Insights from an extreme rainfall event in the Colorado Front Range
Luke McGuire, Francis K. Rengers, Jason W. Kean, Jeffrey A. Coe, Benjamin B. Mirus, Rex L. Baum, Jonathan W. Godt
2016, Geophysical Research Letters (43) 9084-9092
More than 1100 debris flows were mobilized from shallow landslides during a rainstorm from 9 to 13 September 2013 in the Colorado Front Range, with the vast majority initiating on sparsely vegetated, south facing terrain. To investigate the physical processes responsible for the observed aspect control, we made measurements of...
The effects of anthropogenic land cover change on pollen-vegetation relationships in the American Midwest
Ellen Ruth Kujawa, Simon Goring, Andria Dawson, Randy Calcote, Eric Grimm, Sara C. Hotchkiss, Stephen T. Jackson, Elizabeth A. Lynch, Jason S. McLachlan, Jeannine-Marie St-Jacques, Charles Umbanhowar Jr., John W. Williams
2016, Anthropocene (15) 60-71
Fossil pollen assemblages provide information about vegetation dynamics at time scales ranging from centuries to millennia. Pollen-vegetation models and process-based models of dispersal typically assume stable relationships between source vegetation and corresponding pollen in surface sediments, as well as stable parameterizations of dispersal and productivity. These assumptions, however, are...
Balanced sediment fluxes in southern California’s Mediterranean-climate zone salt marshes
Jordan A. Rosencranz, Neil K. Ganju, Richard F. Ambrose, Sandra M. Brosnahan, Patrick J. Dickhudt, Glenn R. Guntenspergen, Glen M. MacDonald, John Y. Takekawa, Karen M. Thorne
2016, Estuaries and Coasts (39) 1035-1049
Salt marsh elevation and geomorphic stability depends on mineral sedimentation. Many Mediterranean-climate salt marshes along southern California, USA coast import sediment during El Niño storm events, but sediment fluxes and mechanisms during dry weather are potentially important for marsh stability. We calculated tidal creek sediment fluxes within a...
Age and growth of round gobies in Lake Huron: Implications for food web dynamics
You J. Duan, Charles P. Madenjian, Cong X. Xie, James S. Diana, Timothy P. O’Brien, Ying M. Zhao, Ji X. He, Steven A. Farha, Bin Huo
2016, Journal of Great Lakes Research (42) 1443-1451
Although the round goby (Neogobius melanostomus) has become established throughout the Laurentian Great Lakes, information is scarce on spatial variation in round goby growth between and within lakes. Based on a sample of 754 specimens captured in 2014, age, growth, and mortality of round gobies at four locations in Lake...
The role of crystallization-driven exsolution on the sulfur mass balance in volcanic arc magmas
Yanqing Su, Christian Huber, Olivier Bachmann, Zoltan Zajacz, Heather M. Wright, Jorge A. Vazquez
2016, Journal of Geophysical Research B: Solid Earth (121) 5624-5640
The release of large amounts of sulfur to the stratosphere during explosive eruptions affects the radiative balance in the atmosphere and consequentially impacts climate for up to several years after the event. Quantitative estimations of the processes that control the mass balance of sulfur between melt, crystals, and vapor bubbles...
Migratory routes and at-sea threats to Pink-footed Shearwaters
Josh Adams, Jonathan J. Felis, Peter Hodum, Valentina Colodro, Ryan Carle, Verónica López
2016, Conference Paper, Seventh Meeting of the Seabird Bycatch Working Group
The Pink-footed Shearwater (Ardenna creatopus) is a seabird with a breeding range restricted to three islands in Chile and an estimated world population of approximately 56,000 breeding individuals (Muñoz 2011, Oikonos unpublished data). Due to multiple threats on breeding colonies and at-sea, Pink-footed Shearwaters are listed as Endangered by the...
Land use effects on pesticides in sediments of prairie pothole wetlands in North and South Dakota
Scott T. McMurry, Jason B. Belden, Loren M. Smith, Shane A. Morrison, Dale W. Daniel, Betty R. Euliss, Ned H. Jr. Euliss, Bart J. Kensinger, Brian Tangen
2016, Science of the Total Environment (565) 682-689
Prairie potholes are the dominant wetland type in the intensively cultivated northern Great Plains of North America, and thus have the potential to receive pesticide runoff and drift. We examined the presence of pesticides in sediments of 151 wetlands split among the three dominant land use types, Conservation Reserve Program...
Synthesis and revision of the lithostratigraphic groups and formations in the Upper Permian?–Lower Jurassic Newark Supergroup of eastern North America
Robert E. Weems, Lawrence H. Tanner, Spencer G. Lucas
2016, Stratigraphy (13) 111-153
The Upper Permian? - Lower Jurassic Newark Supergroup of eastern North America has a strikingly uniform succession of lithologic units. This uniformity is seen regardless of whether these units are characterized on the basis of their lithostratigraphy, allostratigraphy, biostratigraphy, or chemostratigraphy. After deposition, these units were broken up tectonically and...
