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Page 1005, results 25101 - 25125

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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...
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...
Low survival rates of Swan Geese (Anser cygnoides) estimated from neck-collar resighting and telemetry
Chang-Yong Choi, Ki-Sup Lee, Nikolay D. Poyarkov, Jin-Young Park, Hansoo Lee, John Y. Takekawa, Lacy M. Smith, Craig R. Ely, Xin Wang, Lei Cao, Anthony D. Fox, Oleg Goroshko, Nyambayar Batbayar, Diann J. Prosser, Xiangming Xiao
2016, Waterbirds (39) 277-286
Waterbird survival rates are a key component of demographic modeling used for effective conservation of long-lived threatened species. The Swan Goose (Anser cygnoides) is globally threatened and the most vulnerable goose species endemic to East Asia due to its small and rapidly declining population. To address a current knowledge gap...
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...
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, Steve 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...
Genetic variation at the MHC DRB1 locus is similar across Gunnison's prairie dog (Cynomys gunnisoni) colonies regardless of plague history
Kacy R. Cobble, Katy J. Califf, Nathan E. Stone, Megan M. Shuey, Dawn Birdsell, Rebecca E. Colman, James M. Schupp, Maliha Aziz, Roger Van Andel, Tonie E. Rocke, David M. Wagner, Joseph D. Busch
2016, Ecology and Evolution (6) 2624-2651
Yersinia pestis was introduced to North America around 1900 and leads to nearly 100% mortality in prairie dog (Cynomys spp.) colonies during epizootic events, which suggests this pathogen may exert a strong selective force. We characterized genetic diversity at an MHC class II locus (DRB1) in Gunnison's prairie dog (C. gunnisoni)...
Delta smelt habitat in the San Francisco Estuary: A reply to Manly, Fullerton, Hendrix, and Burnham’s “Comments on Feyrer et al. Modeling the effects of future outflow on the abiotic habitat of an imperiled estuarine fish"
Frederick V. Feyrer, Ken B. Newman, Matthew Nobriga, Ted Sommer
2016, Estuaries and Coasts (39) 287-289
Manly et al. (2015) commented on the approach we (Feyrer et al. 2011) used to calculate an index of the abiotic habitat of delta smelt Hypomesus transpacificus. The delta smelt is an annual fish species endemic to the San Francisco Estuary (SFE) in California, USA. Conserving the delta smelt population...
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...
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...
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...
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...
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...
Toxicity of potassium chloride to veliger and byssal stage dreissenid mussels related to water quality
Christine M. Moffitt, Kelly A. Stockton-Fiti, Renata Claudi
2016, Management of Biological Invasions (7) 257-268
Natural resource managers are seeking appropriate chemical eradication and control protocols for infestations of zebra mussels, Dreissena polymorpha (Pallas, 1769), and quagga mussels. D. rostiformis bugensis (Andrusov, 1897) that have limited effect on non-target species. Applications of low concentrations of potassium salt (as potash) have shown promise for use where...
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...
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),...
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...
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),...
National protocol framework for the inventory and monitoring of bees
Sam Droege, Joseph D. Engler, Elizabeth A. Sellers, Lee O’Brien
2016, Report
This national protocol framework is a standardized tool for the inventory and monitoring of the approximately 4,200 species of native and non-native bee species that may be found within the National Wildlife Refuge System (NWRS) administered by the U.S. Fish and Wildlife Service (USFWS). However, this protocol framework may also...
Application of organic petrography in North American shale petroleum systems: A review
Paul C. Hackley, Brian J. Cardott
2016, International Journal of Coal Geology (163) 8-51
Organic petrography via incident light microscopy has broad application to shale petroleum systems, including delineation of thermal maturity windows and determination of organo-facies. Incident light microscopy allows practitioners the ability to identify various types of organic components and demonstrates that solid bitumen is the dominant organic matter occurring in shale...
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....
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...
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...