Use and environmental occurrence of pharmaceuticals in freestall dairy farms with manured forage fields
Naoko Watanabe, Brian A. Bergamaschi, Keith A. Loftin, Michael T. Meyer, Thomas Harter
2010, Environmental Science & Technology (44) 6591-6600
Environmental releases of antibiotics from concentrated animal feeding operations (CAFOs) are of increasing regulatory concern. This study investigates the use and occurrence of antibiotics in dairy CAFOs and their potential transport into first-encountered groundwater. On two dairies we conducted four seasonal sampling campaigns, each across 13 animal production and waste...
USGS perspectives on an integrated approach to watershed and coastal management
Matthew C. Larsen, Pixie A. Hamilton, John W. Haines, Mason Jr.
2010, Marine Technology Society Journal (44) 18-21
The writers discuss three critically important steps necessary for achieving the goal for improved integrated approaches on watershed and coastal protection and management. These steps involve modernization of monitoring networks, creation of common data and web services infrastructures, and development of modeling, assessment, and research tools. Long-term monitoring is needed...
The future of geospatial data
Thomas E. Burley, John D. Peine
2010, GeoWorld (July 2010) 20-23
Do you know where your data are or how they came to be? This question has been pondered by nearly everyone working in natural-resource management. Spatial data, in particular, are being collected at a significant rate, and an increasing number of sources are freely available....
Flying over an infected landscape: Distribution of highly pathogenic avian influenza H5N1 risk in South Asia and satellite tracking of wild waterfowl
Marius Gilbert, Scott H. Newman, John Y. Takekawa, Leo Loth, Chandrashekhar Biradar, Diann J. Prosser, Sivananinthaperumal Balachandran, Mandava Venkata Subba Rao, Taej Mundkur, Baoping Yan, Zhi Xing, Yuansheng Hou, Nyambayar Batbayar, Natsagdorj Tseveenmayadag, Lenny Hogerwerf, Jan Slingenbergh, Xiangming Xiao
2010, EcoHealth (7) 448-458
Highly pathogenic avian influenza (HPAI) H5N1 virus persists in Asia, posing a threat to poultry, wild birds, and humans. Previous work in Southeast Asia demonstrated that HPAI H5N1 risk is related to domestic ducks and people. Other studies discussed the role of migratory birds in the long distance spread of...
Trading off short-term and long-term risk: minimizing the threat of Laysan duck extinction from catastrophes and sea-level rise
Michelle Reynolds, Conor P. McGowan, Sarah J. Converse, Brady Mattsson, Jeffrey S. Hatfield, Andrew McClung, Loyal Mehrhoff, Jeffrey R. Walters, Kim Uyehara
2010, USFWS/USGS Structured Decision Making Workshop, National Conservation Training Center, Shepherdstown, WV, January 25-29, 2010 1-20
Conservation of oceanic island species presents many ecological and logistical challenges. The Northwestern Hawaiian Islands (NWHI) include 300,000 km2 of ocean waters and 10 groups of sub-tropical islands and atolls of high conservation value. Designated as Papahanaumokuakea Marine National Monument, the islands provide habitat for four endangered species of terrestrial...
Victims and vectors: highly pathogenic avian influenza H5N1 and the ecology of wild birds
John Y. Takekawa, Diann J. Prosser, Scott H. Newman, Sabir Bin Muzaffar, Nichola J. Hill, Baoping Yan, Xiangming Xiao, Fumin Lei, Tianxian Li, Steven E. Schwarzbach, Judd A. Howell
2010, Avian Biology Research (3) 51-73
The emergence of highly pathogenic avian influenza (HPAI) viruses has raised concerns about the role of wild birds in the spread and persistence of the disease. In 2005, an outbreak of the highly pathogenic subtype H5N1 killed more than 6,000 wild waterbirds at Qinghai Lake, China. Outbreaks have continued to...
Stratospheric microbiology at 20 km over the Pacific Ocean
David J. Smith, Dale W. Griffin, Andrew C. Schuerger
2010, Aerobiologia (26) 35-46
An aerobiology sampling flight at 20 km was conducted on 28 April 2008 over the Pacific Ocean (36.5° N, 118–149° W), a period of time that coincided with the movement of Asian dust across the ocean. The aim of this study was to confirm the presence of viable bacteria and...
Estimation of aquifer scale proportion using equal area grids: assessment of regional scale groundwater quality
Kenneth Belitz, Bryant C. Jurgens, Matthew K. Landon, Miranda S. Fram, Tyler D. Johnson
2010, Water Resources Research (46)
The proportion of an aquifer with constituent concentrations above a specified threshold (high concentrations) is taken as a nondimensional measure of regional scale water quality. If computed on the basis of area, it can be referred to as the aquifer scale proportion. A spatially unbiased estimate of aquifer scale proportion...
The importance of the riparian zone and in-stream processes in nitrate attenuation in undisturbed and agricultural watersheds – a review of the scientific literature
Anthony J. Ranalli, Donald L. Macalady
2010, Journal of Hydrology (389) 406-415
We reviewed published studies from primarily glaciated regions in the United States, Canada, and Europe of the (1) transport of nitrate from terrestrial ecosystems to aquatic ecosystems, (2) attenuation of nitrate in the riparian zone of undisturbed and agricultural watersheds, (3) processes contributing to nitrate attenuation in riparian zones, (4)...
Effect of surficial disturbance on exchange between groundwater and surface water in nearshore margins
Donald O. Rosenberry, Laura Toran, Jonathan E. Nyquist
2010, Water Resources Research (46)
Low‐permeability sediments situated at or near the sediment‐water interface can influence seepage in nearshore margins, particularly where wave energy or currents are minimal. Seepage meters were used to quantify flow across the sediment‐water interface at two lakes where flow was from surface water to groundwater. Disturbance of the sediment bed...
The scaup conservation action plan: working toward coherence
Jane E. Austin
2010, North American Waterfowl Management Plan Science Support Team Newsletter (Winter 2010) 6-6
The last in a series of three workshops to develop a decision framework for the scaup conservation action plan was conducted in September 2009. Fifteen waterfowl biologists and managers met in Memphis, Tennessee at the Ducks Unlimited Headquarters to review and refine the decision statement, objectives, and prototype model for...
Two-dimensional hydrodynamic modeling to quantify effects of peak-flow management on channel morphology and salmon-spawning habitat in the Cedar River, Washington
Christiana Czuba, Jonathan A. Czuba, Andrew S. Gendaszek, Christopher S. Magirl
2010, Report
The Cedar River in Washington State originates on the western slope of the Cascade Range and provides the City of Seattle with most of its drinking water, while also supporting a productive salmon habitat. Water-resource managers require detailed information on how best to manage high-flow releases from Chester Morse Lake,...
Geomorphic Framework to assess changes to aquatic habitat due to flow regulation and channel and floodplain alteration, Cedar River, Washington
Andrew S. Gendaszek, Christopher S. Magirl, Christiana R. Czuba, Christopher P. Konrad, Rand Little
2010, Report
Flow regulation, bank armoring, and floodplain alteration since the early 20th century have contributed to significant changes in the hydrologic regime and geomorphic processes of the Cedar River in Washington State. The Cedar River originates in the Cascade Range, provides drinking water to the Seattle metropolitan area, and supports several...
Glacier modeling in support of field observations of mass balance at South Cascade Glacier, Washington, USA
Edward G. Josberger, William R. Bidlake
2010, Report
The long-term USGS measurement and reporting of mass balance at South Cascade Glacier was assisted in balance years 2006 and 2007 by a new mass balance model. The model incorporates a temperature-index melt computation and accumulation is modeled from glacier air temperature and gaged precipitation at a remote site. Mass...
Human enteric viruses in groundwater indicate offshore transport of human sewage to coral reefs of the Upper Florida Keys
J. Carrie Futch, Dale W. Griffin, Erin K. Lipp
2010, Environmental Microbiology (12) 964-974
To address the issue of human sewage reaching corals along the main reef of the Florida Keys, samples were collected from surface water, groundwater and coral [surface mucopolysaccharide layers (SML)] along a 10 km transect near Key Largo, FL. Samples were collected semi-annually between July 2003 and September 2005 and...
Use of regression‐based models to map sensitivity of aquatic resources to atmospheric deposition in Yosemite National Park, USA
David W. Clow, Leora Nanus, Brian Huggett
2010, Water Resources Research (46)
An abundance of exposed bedrock, sparse soil and vegetation, and fast hydrologic flushing rates make aquatic ecosystems in Yosemite National Park susceptible to nutrient enrichment and episodic acidification due to atmospheric deposition of nitrogen (N) and sulfur (S). In this study, multiple linear regression (MLR) models were created to estimate...
Prioritization of high-production volume (HPV) chemicals for assessing water resources
James Pankow, John Zogorski, Joshua Valder, Wentai Luo
2010, Report
PDF version of a presentation on assessing water resources given at the 2010 National Water-Quality Monitoring Conference....
Groundwater-surface water interactions within the Chehalis River Basin: presentation ot the Chehalis Basin Partnership
Andy Gendaszek
2010, Report
PDF of a presentation on the groundwater - surface water interactions in the Chehalis River Basin in Washington state....
Water-quality, water-level, and discharge data associated with the Mississippi embayment agricultural chemical-transport study, 2006-2008
Melinda S. Dalton, Claire E. Rose, Richard H. Coupe
2010, Data Series 546
In 2006, the Agricultural Chemicals: Sources, Transport and Fate study team (Agricultural Chemicals Team, ACT) of the U.S. Geological Survey National Water-Quality Assessment Program began a study in northwestern Mississippi to evaluate the influence of surface-water recharge on the occurrence of agriculturally related nutrients and pesticides in the Mississippi River...
Predicted liquefaction in the greater Oakland area and northern Santa Clara Valley during a repeat of the 1868 Hayward Fault (M6.7-7.0) earthquake
Thomas L. Holzer, Thomas E. Noce, Michael J. Bennett
2010, Proceedings of the Third Conference on Earthquake Hazards in the Eastern San Francisco Bay Area 147-163
Probabilities of surface manifestations of liquefaction due to a repeat of the 1868 (M6.7-7.0) earthquake on the southern segment of the Hayward Fault were calculated for two areas along the margin of San Francisco Bay, California: greater Oakland and the northern Santa Clara Valley. Liquefaction is predicted to be more...
Worldwide status of burbot and conservation measures
Martin A. Stapanian, Vaughn L. Paragamian, Charles P. Madenjian, James R. Jackson, Jyrki Lappalainen, Matthew J. Evenson, Matthew D. Neufeld
2010, Fish and Fisheries (11) 34-56
Although burbot (Lota lota Gadidae) are widespread and abundant throughout much of their natural range, there are many populations that have been extirpated, endangered or are in serious decline. Due in part to the species’ lack of popularity as a game and commercial fish, few regions consider burbot in management...
The water table
Thomas L. Holzer
2010, Ground Water (48) 171-173
The water table is a fundamental concept in hydrogeology, yet it is frequently incorrectly defined. For example, both the NGWA (2003) and AGI (Neuendorf et al. 2005) glossaries define the water table as the atmospheric pressure surface that is coincident with the top of the zone of saturation. This definition...
Thiamine status and culture of rainbow smelt (Osmerus mordax) from Owasco Lake, New York
Marc A. Chalupnicki, H. George Ketola, Micheal H. Zehfus, Jonathan R. Crosswait, Jacques Rinchard, James E. McKenna Jr.
2010, Journal of Freshwater Ecology (25) 211-217
In 2005, 2008, and 2009, eggs were collected for analysis of total thiamine fiom 2, 58, and 30 gravid rainbow smelt (Osmerus mordax) captured in Edgewater Creek, Owasco Lake, New York, respectively. Mean egg thiamine concentrations (nmollg i standard error) in 2005, 2008, and 2009 were 6.0 ± 1.8, 13.3...
Decline of shortjaw cisco in Lake Superior: the role of overfishing and risk of extinction
Charles R. Bronte, Michael H. Hoff, Owen T. Gorman, Wayne E. Thogmartin, Philip J. Schneeberger, Thomas N. Todd
2010, Transactions of the American Fisheries Society (139) 735-748
Recent reviews have further documented the decline of the shortjaw cisco Coregonus zenithicus in Lake Superior. This fish was the most abundant deepwater cisco species in Lake Superior in the early 1920s but presently makes up less than 1% of all deepwater ciscoes (i.e., including shortjaw cisco, bloater C. hoyi,...
The perfect debris flow? Aggregated results from 28 large-scale experiments
Richard M. Iverson, Matthew Logan, Richard G. LaHusen, Matteo Berti
2010, Journal of Geophysical Research F: Earth Surface (115) F03005
Aggregation of data collected in 28 controlled experiments reveals reproducible debris-flow behavior that provides a clear target for model tests. In each experiment ∼10 m3 of unsorted, water-saturated sediment composed mostly of sand and gravel discharged from behind a gate, descended a steep, 95-m flume, and formed a deposit on...
