Molecular detection of airborne Coccidioides in Tucson, Arizona
Nancy A. Chow, Dale W. Griffin, Bridget M. Barker, Vladimir N. Loparev, Anastasia P. Litvintseva
2016, Medical Mycology (54) 584-592
Environmental surveillance of the soil-dwelling fungus Coccidioides is essential for the prevention of Valley fever, a disease primarily caused by inhalation of the arthroconidia. Methods for collecting and detectingCoccidioides in soil samples are currently in use by several laboratories; however, a method utilizing current air sampling technologies has not been formally demonstrated for...
Year-round monitoring of contaminants in Neal and Rogers Creeks, Hood River Basin, Oregon, 2011-12, and assessment of risks to salmonids
Whitney B. Temple, Jennifer L. Morace, Elena B. Nilsen, David Alvarez, Kevin Masterson
2016, PLoS ONE (11)
Pesticide presence in streams is a potential threat to Endangered Species Act listed salmonids in the Hood River basin, Oregon, a primarily forested and agricultural basin. Two types of passive samplers, polar organic chemical integrative samplers (POCIS) and semipermeable membrane devices (SPMDs), were simultaneously deployed at four sites in the...
Yellowstone River Compact Commission sixty-fifth annual report, 2016
Seth Davidson
2016, Report
No abstract available....
The new Landsat 8 potential for remote sensing of colored dissolved organic matter (CDOM)
E. Terrence Slonecker, Daniel K. Jones, Brian A. Pellerin
2016, Marine Pollution Bulletin (107) 518-527
Due to a combination of factors, such as a new coastal/aerosol band and improved radiometric sensitivity of the Operational Land Imager aboard Landsat 8, the atmospherically-corrected Surface Reflectance product for Landsat data, and the growing availability of corrected fDOM data from U.S. Geological Survey gaging stations, moderate-resolution remote sensing of...
Effects of pulse and press drying disturbance on benthic stream communities
Dustin T. Lynch, Daniel D. Magoulick
2016, Freshwater Science (35) 998-1009
Natural disturbance is an integral component of most ecosystems and occurs in 3 different forms: pulse, press, and ramp. In lotic ecosystems, seasonal drought is a major form of disturbance, particularly in intermittent headwater streams, which often are reduced to pools that serve as refuges for biota. We used simulated...
Increased water deficit decreases Douglas fir growth throughout western US forests
Christina M Restaino, David L. Peterson, Jeremy S. Littell
2016, Proceedings of the National Academy of Sciences of the United States of America (113) 9557-9562
Changes in tree growth rates can affect tree mortality and forest feedbacks to the global carbon cycle. As air temperature increases, evaporative demand also increases, increasing effective drought in forest ecosystems. Using a spatially comprehensive network of Douglas-fir (Pseudotsuga menziesii) chronologies from 122 locations that experience distinctly different climate in...
Digestive physiology comparisons of aquatic invertebrates in the Upper Mississippi River Basin
Blake W. Sauey, Jon Amberg, Scott T. Cooper, Sandra K. Grunwald, Roger J. Haro, Mark P. Gaikowski
2016, Journal of Freshwater Ecology (31) 303-314
Limited information is available on the composition of digestive enzymes present in unionid mussels and the zebra mussel, Dreissena polymorpha. Available information is nearly exclusive to species used for culture purposes. A commercially available enzyme assay kit was used to examine the effect of habitat within an ecosystem, season, and species...
Seasonal Variability in Vadose zone biodegradation at a crude oil pipeline rupture site
Natasha J. Sihota, Jared J. Trost, Barbara Bekins, Andrew M. Berg, Geoffrey N. Delin, Brent E. Mason, Ean Warren, K. Ulrich Mayer
2016, Vadose Zone Journal (15)
Understanding seasonal changes in natural attenuation processes is critical for evaluating source-zone longevity and informing management decisions. The seasonal variations of natural attenuation were investigated through measurements of surficial CO2 effluxes, shallow soil CO2 radiocarbon contents, subsurface gas concentrations, soil temperature, and volumetric water contents during a 2-yr period. Surficial...
Including land cover change in analysis of greenness trends using all available Landsat 5, 7, and 8 images: A case study from Guangzhou, China (2000–2014)
Zhe Zhu, Yingchun Fu, Curtis Woodcock, Pontus Olofsson, James Vogelmann, Christopher Holden, Min Wang, Shu Dai, Yang Yu
2016, Remote Sensing of Environment (185) 243-257
Remote sensing has proven a useful way of evaluating long-term trends in vegetation “greenness” through the use of vegetation indices like Normalized Differences Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI). In particular, analyses of greenness trends have been performed for large areas (continents, for example) in an attempt...
Spatiotemporal patterns of mercury accumulation in lake sediments of western North America
Paul Drevnick, Colin A. Cooke, Daniella Barraza, Jules M. Blais, Kenneth Coale, Brian F. Cumming, Chris Curtis, Biplob Das, William F. Donahue, Collin A. Eagles-Smith, Daniel R. Engstrom, William F. Fitzgerald, Chad V. Furl, John R. Gray, Roland I. Hall, Togwell A. Jackson, Kathleen R. Laird, W. Lyle Lockhart, Robie W. Macdonald, M. Alisa Mast, Callie Mathieu, Derek C.G. Muir, Peter Outridge, Scott Reinemann, Sarah E. Rothenberg, Ana Carolina Ruiz-Fernandex, Louis, Rhea Sanders, Hamed Sanei, Elliott Skierszkan, Peter C. Van Metre, Timothy Veverica, Johan A. Wiklund, Brent B. Wolfe
2016, Science of the Total Environment (568) 1157-1170
For the Western North America Mercury Synthesis, we compiled mercury records from 165 dated sediment cores from 138 natural lakes across western North America. Lake sediments are accepted as faithful recorders of historical mercury accumulation rates, and regional and sub-regional temporal and spatial trends were...
An assessment of mercury in estuarine sediment and tissue in Southern New Jersey using public domain data
Kara Ng, Zoltan Szabo, Pamela A. Reilly, Julia Barringer, Kelly L. Smalling
2016, Marine Pollution Bulletin (107) 22-35
Mercury (Hg) is considered a contaminant of global concern for coastal environments due to its toxicity, widespread occurrence in sediment, and bioaccumulation in tissue. Coastal New Jersey, USA, is characterized by shallow bays and wetlands that provide critical habitat for wildlife but share space with expanding urban landscapes. This study...
Hemidactylus parvimaculatus (Sri Lankan spotted house gecko)
Brad M. Glorioso
2016, Herpetological Review (47) 81-81
USA: LOUISIANA: St. Tammany Parish: private property ca. 4 km S of Abita Springs, E of State Hwy 59, and N of Interstate 12 (30.44000°N, 90.02000°W; WGS 84). 18 August 2013. Brad M. Glorioso. Verified by David Heckard. Florida Museum of Natural History (UF 176422, photo voucher). New parish record....
The role of ocean tides on groundwater-surface water exchange in a mangrove-dominated estuary: Shark River Slough, Florida Coastal Everglades, USA
Christopher G. Smith, Rene M. Price, Peter W. Swarzenski, Jeremy C. Stalker
2016, Estuaries and Coasts (39) 1600-1616
Low-relief environments like the Florida Coastal Everglades (FCE) have complicated hydrologic systems where surface water and groundwater processes are intimately linked yet hard to separate. Fluid exchange within these lowhydraulic-gradient systems can occur across broad spatial and temporal scales, with variable contributions to material transport and transformation. Identifying and assessing...
Genetic reconstruction of a bullfrog invasion to elucidate vectors of introduction and secondary spread
Pauline L. Kamath, Adam J. Sepulveda, Megan J. Layhee
2016, Ecology and Evolution (6) 5221-5233
Reconstructing historical colonization pathways of an invasive species is critical for uncovering factors that determine invasion success and for designing management strategies. The American bullfrog (Lithobates catesbeianus) is endemic to eastern North America, but now has a global distribution and is considered to be one of the worst invaders in...
Characterizing supraglacial meltwater channel hydraulics on the Greenland Ice Sheet from in situ observations
Colin J. Gleason, Laurence C. Smith, Vena W. Chu, Carl J. Legleiter, Lincoln H. Pitcher, Brandon T. Overstreet, Asa K. Rennermalm, Richard R. Forster, Kang Yang
2016, Earth Surface Processes and Landforms (41) 2111-2122
Supraglacial rivers on the Greenland ice sheet (GrIS) transport large volumes of surface meltwater toward the ocean, yet have received relatively little direct research. This study presents field observations of channel width, depth, velocity, and water surface slope for nine supraglacial channels on the southwestern GrIS collected between 23 July...
Geographic distribution of genetic diversity in populations of Rio Grande Chub Gila pandora
Rene Galindo, Wade Wilson, Colleen A. Caldwell
2016, Conservation Genetics (17) 1081-1091
In the southwestern United States (US), the Rio Grande chub (Gila pandora) is state-listed as a fish species of greatest conservation need and federally listed as sensitive due to habitat alterations and competition with non-native fishes. Characterizing genetic diversity, genetic population structure, and effective number of breeders...
Geology and biology of the "Sticky Grounds," shelf-margin carbonate mounds, and mesophotic ecosystem in the eastern Gulf of Mexico
Stanley D. Locker, John K. Reed, Stephanie Farrington, Stacey Harter, Albert C. Hine, Shane Dunn
2016, Continental Shelf Research (125) 71-87
Shelf-margin carbonate mounds in water depths of 116–135 m in the eastern Gulf of Mexico along the central west Florida shelf were investigated using swath bathymetry, side-scan sonar, sub-bottom imaging, rock dredging, and submersible dives. These enigmatic structures, known to fisherman as the “Sticky Grounds”, trend along slope, are...
High concentrations of manganese and sulfur in deposits on Murray Ridge, Endeavour Crater, Mars
Raymond E. Arvidson, Steven W. Squyres, Richard V. Morris, Andrew H. Knoll, Ralf Gellert, Benton C. Clark, Jeffrey G. Catalano, Bradley L. Jolliff, Scott M. McLennan, Kenneth E. Herkenhoff, Scott VanBommel, David W. Mittelfehldt, John P. Grotzinger, Edward A. Guinness, Jeffrey R. Johnson, James F. Bell III, William H. Farrand, Nathan Stein, Valerie K. Fox, Matthew P. Golombek, Margaret A. G. Hinkle, Wendy M. Calvin, Paulo A. de Souza Jr.
2016, American Mineralogist (101) 1389-1405
Mars Reconnaissance Orbiter HiRISE images and Opportunity rover observations of the ~22 km wide Noachian age Endeavour Crater on Mars show that the rim and surrounding terrains were densely fractured during the impact crater-forming event. Fractures have also propagated upward into the overlying Burns formation sandstones. Opportunity’s observations show that...
Impact of formation water geochemistry and crude oil biodegradation on microbial methanogenesis
Jenna L. Shelton, Jennifer C. McIntosh, Peter D. Warwick, John E. McCray
2016, Organic Geochemistry (98) 105-117
Converting non-producible crude oil to CH4 via methanogenic crude oil biodegradation in oil reservoirs could serve as one way to increase our energy profile. Yet, field data supporting the direct relationship between methanogenesis and crude oil biodegradation are sparse. Indicators of methanogenesis, based on the formation water and gas geochemistry...
An association between a cusk eel (Bassozetus sp.) and a black coral (Schizopathes sp.) in the deep western Indian Ocean
Andrew R. Gates, Kirsty Morris, Daniel O.B. Jones, Kenneth J. Sulak
2016, Marine Biodiversity Records (47) 971-977
Detailed observations in the deep sea can reveal previously unknown behaviour, species interactions and fine-scale habitat heterogeneity. Here, the first in situ images of the black coral Schizopathes sp. (Anthozoa: Antipatharia) in the deep western Indian Ocean have been obtained from remotely operated vehicle video footage and time-lapse photography. In...
Regional differences in upland forest to developed (urban) land cover conversions in the conterminous U.S., 1973–2011
Roger F. Auch, Mark A. Drummond, George Z. Xian, Kristi Sayler, William Acevedo, Janis Taylor
2016, Forests (7)
In this U.S. Geological Survey study of forest land cover across the conterminous U.S. (CONUS), specific proportions and rates of forest conversion to developed (urban) land were assessed on an ecoregional basis. The study period was divided into six time intervals between 1973 and 2011. Forest land cover was the...
Jaguar taxonomy and genetic diversity for southern Arizona, United States, and Sonora, Mexico
Melanie Culver, Alexander Ochoa Hein
2016, Open-File Report 2016-1109
Executive SummaryThe jaguar is the largest Neotropical felid and the only extant representative of the genus Panthera in the Americas. In recorded history, the jaguars range has extended from the Southern United States, throughout Mexico, to Central and South America, and they occupy a wide variety of habitats. A previous...
Loss of genetic diversity and increased subdivision in an endemic Alpine Stonefly threatened by climate change
Steve Jordan, J. Joseph Giersch, Clint C. Muhlfeld, Scott Hotalling, Liz Fanning, Tyler H. Tappenbeck, Gordon Luikart
2016, PLoS ONE (11)
Much remains unknown about the genetic status and population connectivity of high-elevation and high-latitude freshwater invertebrates, which often persist near snow and ice masses that are disappearing due to climate change. Here we report on the conservation genetics of the meltwater stonefly Lednia tumana (Ricker) of Montana, USA, a cold-water...
Reconsidering earthquake scaling
Joan S. Gomberg, Aaron G. Wech, Kenneth Creager, K. Obara, Duncan Agnew
2016, Geophysical Research Letters (43) 6243-6251
The relationship (scaling) between scalar moment, M0, and duration, T, potentially provides key constraints on the physics governing fault slip. The prevailing interpretation of M0-T observations proposes different scaling for fast (earthquakes) and slow (mostly aseismic) slip populations and thus fundamentally different driving mechanisms. We show that a single model of slip events within...
Estimation of peak discharge quantiles for selected annual exceedance probabilities in northeastern Illinois
Thomas M. Over, Riki J. Saito, Andrea G. Veilleux, Padraic S. O’Shea, Jennifer B. Sharpe, David T. Soong, Audrey L. Ishii
2016, Scientific Investigations Report 2016-5050
This report provides two sets of equations for estimating peak discharge quantiles at annual exceedance probabilities (AEPs) of 0.50, 0.20, 0.10, 0.04, 0.02, 0.01, 0.005, and 0.002 (recurrence intervals of 2, 5, 10, 25, 50, 100, 200, and 500 years, respectively) for watersheds in Illinois based on annual maximum peak...
