Conference Papers
Science Quality and Integrity
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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
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In-stream water-quality estimation: Case studies in real-time stream and lake monitoring in the central USA In-stream water-quality estimation: Case studies in real-time stream and lake monitoring in the central USA
Five U.S. Geological Survey case studies in real-time stream and lake monitoring are presented. The emphases of the case studies are in-stream biological characteristics, fecal coliform bacteria, atrazine, phosphorus, and taste-and-odor compounds.
Authors
Victoria G. Christensen, Andrew C. Ziegler, Jennifer L. Graham, Rachel A. Esralew
Keeping Hawai’i’s forest birds one step ahead of avian diseases in a warming world: a focus on Hakalau Forest National Wildlife Refuge. A case study from the National Conservation and Training Center Structured Decision Making Workshop Keeping Hawai’i’s forest birds one step ahead of avian diseases in a warming world: a focus on Hakalau Forest National Wildlife Refuge. A case study from the National Conservation and Training Center Structured Decision Making Workshop
This report is a product of a one-week workshop on using Structured Decision Making to identify and prioritize conservation actions to address the threat of climate change on Hawaii‟s native forest bird community. Specifically, t his report addresses the issue of global warming ‟s likely role in increasing disease prevalence in upper elevation forests of Hawaii, negatively impacting...
Authors
Eben H. Paxton, Jeff Burgett, Eve McDonald-Fadden, Ellen Bean, Carter T. Atkinson, Donna L. Ball, Colleen Cole, Lisa H. Crampton, Jim Kraus, Dennis A. LaPointe, Loyal Mehrhoff, Michael D. Samuel, Donna Brewer, Sarah J. Converse, Steve Morey
Evaluation of long-term gas hydrate production testing locations on the Alaska North Slope Evaluation of long-term gas hydrate production testing locations on the Alaska North Slope
The results of short duration formation tests in northern Alaska and Canada have further documented the energy resource potential of gas hydrates and justified the need for long-term gas hydrate production testing. Additional data acquisition and long-term production testing could improve the understanding of the response of naturally-occurring gas hydrate to depressurization-induced or...
Authors
Timothy Collett, Ray Boswell, Myung W. Lee, Brian J. Anderson, Kelly K. Rose, Kristen A. Lewis
Detection probability of gyrfalcons and other cliff-nesting raptors during aerial surveys in Alaska Detection probability of gyrfalcons and other cliff-nesting raptors during aerial surveys in Alaska
No abstract available.
Authors
Travis L. Booms, Mark R. Fuller, Philip F. Schempf, Brian J. McCaffery, Mark S. Lindberg
Use of large-scale, multi-species surveys to monitor gyrfalcon and ptarmigan populations Use of large-scale, multi-species surveys to monitor gyrfalcon and ptarmigan populations
We evaluated the ability of three large-scale, multi-species surveys in the Arctic to provide information on abundance and habitat relationships of Gyrfalcons (Falco rusticolus) and ptarmigan. The Program for Regional and International Shorebird Monitoring (PRISM) has surveyed birds widely across the arctic regions of Canada and Alaska since 2001. The Arctic Coastal Plain survey has...
Authors
Jonathan Bart, Mark Fuller, Paul Smith, Leah Dunn
An approach to modeling coupled thermal-hydraulic-chemical processes in geothermal systems An approach to modeling coupled thermal-hydraulic-chemical processes in geothermal systems
Interactions between hydrothermal fluids and rock alter mineralogy, leading to the formation of secondary minerals and potentially significant physical and chemical property changes. Reactive transport simulations are essential for evaluating the coupled processes controlling the geochemical, thermal and hydrological evolution of geothermal systems. The objective of this preliminary...
Authors
Jennifer Palguta, Colin F. Williams, Steven E. Ingebritsen, Stephen H. Hickman, Eric Sonnenthal
An analytical model to predict dune and cliff notching due to wave impact An analytical model to predict dune and cliff notching due to wave impact
A model was developed to calculate the evolution of a notch in a dune or cliff due to wave impact. Analytical solutions were derived to the model for schematized conditions regarding forcing and dune/cliff properties. Comparisons were made with laboratory experiments where the time evolution of the notch was measured. Values of the transport coefficients in the analytical solutions were...
Authors
Magnus Per Larson, Tsuguo Sunamura, Li H. Erikson, Atilla Bayram, Hans Hanson
Host specificity and ecology of infectious hematopoietic necrosis virus (IHNV) in Pacific salmonids Host specificity and ecology of infectious hematopoietic necrosis virus (IHNV) in Pacific salmonids
Some circumstances IHNV infection can cause acute disease with mortality ranging from 5-90% in host populations. Genetic typing of IHNV field isolates has shown that three major genetic groups of the virus occur in North America. These groups are designated the U, M, and L virus genogroups because they occur in the upper, middle, and lower portions of the geographic range of IHNV in...
Authors
Gael Kurath, A. K. Garver, M. K. Purcell, Ma. Penaranda, Svetlana Rudakova
Monitoring behaviors and activity of bats at wind turbines with near infrared videography Monitoring behaviors and activity of bats at wind turbines with near infrared videography
No abstract available.
Authors
Paul M. Cryan, P. M. Gorresen, F.J. Bonaccorso, M. A. Hayes
Contaminants limit ecosystem potential, not average potential of ecosystems Contaminants limit ecosystem potential, not average potential of ecosystems
No abstract available.
Authors
Travis S. Schmidt, W.H. Clements, Brian S. Cade
Transfer of trace metals from streams to terrestrial food webs by emerging aquatic insects in mineralized alpine ecosystems Transfer of trace metals from streams to terrestrial food webs by emerging aquatic insects in mineralized alpine ecosystems
No abstract available.
Authors
Johanna M. Kraus, R. B. Wanty, Travis S. Schmidt, David M. Walters, Craig A. Stricker
I3N risk assessment and pathway analysis: Tools for the prevention of biological invasions I3N risk assessment and pathway analysis: Tools for the prevention of biological invasions
Information on invasive alien species from published and unpublished accounts and databases is usually scattered in locations and formats that are not easily accessible. Customized informatics tools for collecting and organizing invasive species information can help resource managers better control biological invasions. The Invasives Information Network (I3N) of the Inter-American...
Authors
Annie Simpson, Elizabeth A. Sellers