Holocene climate changes in eastern Beringia (NW North America) – A systematic review of multi-proxy evidence
Darrell S. Kaufman, Yarrow L. Axford, Andrew C.G. Henderson, Nicolas P. McKay, W. Wyatt Oswald, Casey Saenger, R. Scott Anderson, Hannah L. Bailey, Benjamin Clegg, Konrad Gajewski, Feng Sheng Hu, Miriam C. Jones, Charly Massa, Cody C. Routson, Al Werner, Matthew J. Wooller, Zicheng Yu
2016, Quaternary Science Reviews (147) 312-339
Reconstructing climates of the past relies on a variety of evidence from a large number of sites to capture the varied features of climate and the spatial heterogeneity of climate change. This review summarizes available information from diverse Holocene paleoenvironmental records across eastern Beringia (Alaska, westernmost Canada and adjacent seas),...
Preservation of ancient impact ages on the R chondrite parent body: 40Ar/39Ar age of hornblende-bearing R chondrite LAP 04840
Kevin Righter, Michael A. Cosca, Leah E. Morgan
2016, Meteoritics and Planetary Science (51) 1678-1684
The hornblende- and biotite-bearing R chondrite LAP 04840 is a rare kind of meteorite possibly containing outer solar system water stored during metamorphism or postshock annealing deep within an asteroid. Because little is known regarding its age and origin, we determined 40Ar/39Ar ages on hornblende-rich separates of the meteorite, and...
Validation of the ASTER Global Digital Elevation Model version 3 over the conterminous United States
Dean B. Gesch, Michael J. Oimoen, Jeffrey J. Danielson, David Meyer
L Halounova, V. Safar, J. Jiang, H. Olesovska, P. Dvoracek, D. Holland, V.A. Seredovich, J.P. Muller, E. Pattabhi Rama Rao, B. Veenendaal, L. Mu, S. Zlatanova, J. Oberst, C.P. Yang, Y. Ban, S. Stylianidis, V. Vozenilek, A. Vondrakova, G. Gartner, F. Remondino, Y. Doytsher, George Percivall, G. Schreier, I. Dowman, A. Streilein, J. Ernst, editor(s)
2016, Conference Paper, Proceedings: XXIII ISPRS Congress, Commission IV (Volume XLI-B4)
The ASTER Global Digital Elevation Model Version 3 (GDEM v3) was evaluated over the conterminous United States in a manner similar to the validation conducted for the original GDEM Version 1 (v1) in 2009 and GDEM Version 2 (v2) in 2011. The absolute vertical accuracy of GDEM v3 was calculated...
The water content of recurring slope lineae on Mars
Christopher S. Edwards, Sylvain Piqueux
2016, Geophysical Research Letters (43) 8912-8919
Observations of recurring slope lineae (RSL) from the High-Resolution Imaging Science Experiment have been interpreted as present-day, seasonally variable liquid water flows; however, orbital spectroscopy has not confirmed the presence of liquid H2O, only hydrated salts. Thermal Emission Imaging System (THEMIS) temperature data and a numerical heat transfer model definitively...
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...
A global review of freshwater crayfish temperature tolerance, preference, and optimal growth
Jacob T. Westhoff, Amanda E. Rosenberger
2016, Reviews in Fish Biology and Fisheries (26) 329-349
Conservation efforts, environmental planning, and management must account for ongoing ecosystem alteration due to a changing climate, introduced species, and shifting land use. This type of management can be facilitated by an understanding of the thermal ecology of aquatic organisms. However, information on thermal ecology for entire taxonomic groups is...
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...
Radiometric calibration updates to the Landsat collection
Esad Micijevic, Obaidul Haque, Nischal Mishra
2016, Conference Paper, Proceedings Volume 9972, Earth Observing Systems XXI
The Landsat Project is planning to implement a new collection management strategy for Landsat products generated at the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center. The goal of the initiative is to identify a collection of consistently geolocated and radiometrically calibrated images across the entire Landsat...
Hydrology of flooded and wetland forests
T. M. Williams, Ken W. Krauss, T. Okruszko
D. Amatya, T. M. Williams, L. Bren, C. de Jong, editor(s)
2016, Book chapter, Forest hydrology: Processes, management and assessment
In this chapter we will examine the hydrology of forested areas that are subject to soil saturation by rain, groundwater, or surface flooding. They include mangroves and other tidal forests, the forested portions of peatlands, and tree dominated wetlands defined by the Ramsar Convention (Mathews 1993)....
Yosemite Hydroclimate Network: Distributed stream and atmospheric data for the Tuolumne River watershed and surroundings
Jessica D. Lundquist, James W. Roche, Harrison Forrester, Courtney Moore, Eric Keenan, Gwyneth Perry, Nicoleta Cristea, Brian Henn, Karl Lapo, Bruce McGurk, Daniel R. Cayan, Michael D. Dettinger
2016, Water Resources Research (52) 7478-7489
Regions of complex topography and remote wilderness terrain have spatially varying patterns of temperature and streamflow, but due to inherent difficulties of access, are often very poorly sampled. Here we present a data set of distributed stream stage, streamflow, stream temperature, barometric pressure, and air temperature from the Tuolumne River...
Three-dimensional numerical modeling of mixing at the junction of the Calumet-Sag Channel and the Chicago Sanitary and Ship Canal: A comparison between density-driven and advection-driven mixing
Dongchen Wang, Som Dudda, P. Ryan Jackson, Marcelo H. Garcia
George Constantinescu, Marcelo H. Garcia, Dan Hanes, editor(s)
2016, Conference Paper, Proceedings of the International Conference on Fluvial Hydraulics (River Flows 2016)
The Chicago Area Waterway System (CAWS) includes the Chicago Sanitary and Ship Canal (CSSC) and the Calumet-Sag Channel (Cal-Sag), the two primary, man-made connections between the Mississippi River Basin and the Great Lakes. The U.S. Geological Survey (USGS) monitors diversion of Great Lakes water at a streamgage just downstream of...
Shale gas development effects on the songbird community in a central Appalachian forest
Laura S. Farwell, Petra Wood, James Sheehan, Gregory A. George
2016, Biological Conservation (201) 78-91
In the last decade, unconventional drilling for natural gas from the Marcellus-Utica shale has increased exponentially in the central Appalachians. This heavily forested region contains important breeding habitat for many neotropical migratory songbirds, including several species of conservation concern. Our goal was to examine effects of unconventional gas development on...
First steps for mitigating bycatch of Pink-footed Shearwaters Ardenna creatopus: Identifying overlap of foraging areas and fisheries in Chile
Ryan Carle, Jonathan J. Felis, Verónica López, Josh Adams, Peter Hodum, Jessie Beck, Valentina Colodro, Rodrigo Vega, Andres Gonzalez
2016, Conference Paper, Seventh Meeting of the Seabird Bycatch Working Group
The Pink-footed Shearwater, Ardenna creatopus, is listed as in danger of extinction by Chile and under Annex 1 of ACAP, with an estimated global population of approximately 56,000 individuals. Incidental bycatch of this species in fisheries is thought to be an important cause in population decline (i.e. annual estimated mortality...
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...
Geomorphic responses of Duluth-area streams to the June 2012 flood, Minnesota
Faith A. Fitzpatrick, Christopher A. Ellison, Christiana R. Czuba, Benjamin M. Young, Molly M. McCool, Joel T. Groten
2016, Scientific Investigations Report 2016-5104
In 2013, the U.S. Geological Survey, in cooperation with the Minnesota Pollution Control Agency, completed a geomorphic assessment of 51 Duluth-area stream sites in 20 basins to describe and document the stream geomorphic changes associated with the June 2012 flood. Heavy rainfall caused flood peaks with annual exceedance probabilities of...
A strategy for recovering continuous behavioral telemetry data from Pacific walruses
Anthony S. Fischbach, Chadwick V. Jay
2016, Wildlife Society Bulletin (40) 599-604
Tracking animal behavior and movement with telemetry sensors can offer substantial insights required for conservation. Yet, the value of data collected by animal-borne telemetry systems is limited by bandwidth constraints. To understand the response of Pacific walruses (Odobenus rosmarus divergens) to rapid changes in sea ice availability, we required continuous...
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...
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...
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...
Forward modeling of gravity data using geostatistically generated subsurface density variations
Geoffrey Phelps
2016, Geophysics (81) G81-G94
Using geostatistical models of density variations in the subsurface, constrained by geologic data, forward models of gravity anomalies can be generated by discretizing the subsurface and calculating the cumulative effect of each cell (pixel). The results of such stochastically generated forward gravity anomalies can be compared with the observed gravity...
Differences found in the macroinvertebrate community composition in the presence or absence of the invasive alien crayfish, Orconectes hylas
Brandye T. Freeland-Riggert, Stefan H. Cairns, Barry C. Poulton, Chris M. Riggert
2016, PLoS ONE (11)
Introductions of alien species into aquatic ecosystems have been well documented, including invasions of crayfish species; however, little is known about the effects of these introductions on macroinvertebrate communities. The woodland crayfish (Orconectes hylas (Faxon)) has been introduced into the St. Francis River watershed in southeast Missouri and has displaced...
Synthesis of common management concerns associated with dam removal
Desiree D. Tullos, Mathias J. Collins, J. Ryan Bellmore, Jennifer A. Bountry, Patrick J. Connolly, Patrick B. Shafroth, Andrew C. Wilcox
2016, Journal of the American Water Resources Association (52) 1179-1206
Managers make decisions regarding if and how to remove dams in spite of uncertainty surrounding physical and ecological responses, and stakeholders often raise concerns about certain negative effects, regardless of whether or not these concerns are warranted at a particular site. We used a dam-removal science database supplemented with other...
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...
Regulation of the hunting season as a tool for adaptive harvest management — First results for pink-footed geese Anser brachyrhynchus
Jesper Madsen, Kevin K. Clausen, Thomas K. Christensen, Fred A. Johnson
2016, Wildlife Biology (22) 204-208
Adjustment of hunting season length is often used to regulate harvest of waterbirds but the effects are disputed. We describe the first results of season length extension on the harvest of the pink-footed goose, which has been selected as the first test case of adaptive harvest management of waterbirds in...
Actions and dialog to change perceptions and increase engagement of underrepresented minorities in fisheries and aquatic sciences: Report to membership from a special session in Portland
Christine M. Moffitt
2016, Fisheries (41) 66-67
No abstract available....
