Conference Papers
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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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Considering native and exotic terrestrial reptiles in island invasive species eradication programmes in the Tropical Pacific Considering native and exotic terrestrial reptiles in island invasive species eradication programmes in the Tropical Pacific
Most island restoration projects with reptiles, either as direct beneficiaries of conservation or as indicators of recovery responses, have been on temperate or xeric islands. There have been decades of research, particularly on temperate islands in New Zealand, on the responses of native reptiles to mammal eradications but very few studies in tropical insular systems. Recent increases...
Authors
Richard N. Fisher
Tracking tracer breakthrough in the hyporheic zone using time‐lapse DC resistivity, Crabby Creek, Pennsylvania Tracking tracer breakthrough in the hyporheic zone using time‐lapse DC resistivity, Crabby Creek, Pennsylvania
Characterization of the hyporheic zone is of critical importance for understanding stream ecology, contaminant transport, and groundwater‐surface water interaction. A salt water tracer test was used to probe the hyporheic zone of a recently re‐engineered portion of Crabby Creek, a stream located near Philadelphia, PA. The tracer solution was tracked through a 13.5 meter segment of the...
Authors
Jonathan E. Nyquist, Laura Toran, Allison C. Fang, Robert J. Ryan, Donald O. Rosenberry
Integrated characterization of the Richelieu/Lake Champlain basin Integrated characterization of the Richelieu/Lake Champlain basin
No abstract available.
Authors
A. Rivera, C. Rivard, M. Parent, N. Benoit, R. Lefebvre, M.A. Carrier, E. Gloaguen, Richard J. Reynolds, Thomas J. Mack, J.H. Williams, Y. H. Baevsky
A model for evaluating stream temperature response to climate change scenarios in Wisconsin A model for evaluating stream temperature response to climate change scenarios in Wisconsin
Global climate change is expected to alter temperature and flow regimes for streams in Wisconsin over the coming decades. Stream temperature will be influenced not only by the predicted increases in average air temperature, but also by changes in baseflow due to changes in precipitation patterns and amounts. In order to evaluate future stream temperature and flow regimes in Wisconsin, we...
Authors
Stephen M. Westenbroek, Jana S. Stewart, Cheryl A. Buchwald, Matthew G. Mitro, John D. Lyons, Steven Greb
Observations of drainage network change in a recently burned watershed using terrestrial laser scanning Observations of drainage network change in a recently burned watershed using terrestrial laser scanning
Wildfire enhances the geomorphic response of a watershed to precipitation events, effectively altering the form of the hillslope and channel drainage network. Typically, drainage networks expand following rainfall on a recently burned watershed. Expansion of drainage networks following wildfire increases in erosion and sediment transport rates, and the probability of flash-flooding and...
Authors
Dennis Staley, Thad Wasklewicz, Jason Kean
Rock mechanical testing in support of well stimulation activities at the Desert Peak geothermal field, Nevada Rock mechanical testing in support of well stimulation activities at the Desert Peak geothermal field, Nevada
No abstract available.
Authors
Susan Juch Lutz, Stephen Hickman, Nicholas C. Davatzes, Ezra Zemach, Peter Drakos, Ann Robertson-Tait
Estimating structural dip from gravity and magnetic profile data Estimating structural dip from gravity and magnetic profile data
The anomalies of ideal sources, dipping magnetic contacts and dipping density sheets, provide the theoretical basis for estimating structural dip from gravity and magnetic profile data. The dip is always related to the local phase angle of a complex analytic signal evaluated directly over the source. For magnetic sheets, the complex analytic signal is constructed from the anomaly and its...
Authors
Jeffrey Phillips
Geophysical setting of the blue mountain geothermal area, North-Central Nevada and its relationship to a crustal-scale fracture associated with the inception of the Yellowstone hotspot Geophysical setting of the blue mountain geothermal area, North-Central Nevada and its relationship to a crustal-scale fracture associated with the inception of the Yellowstone hotspot
No abstract available.
Authors
David A. Ponce, Jonathan M.G. Glen, Janet Watt, John Casteel
Predicting risks to aquatic life based on lithologic specific geochemical baselines Predicting risks to aquatic life based on lithologic specific geochemical baselines
No abstract available.
Authors
Travis S. Schmidt, R. B. Wanty, P. L. Verplanck, S. E. Church, C. San Juan, D. Fey, B.W. Rockwell, E.H. deWitt, T. L. Klein
Reconnaissance of weathering rates in alpine catchments of central Colorado, USA Reconnaissance of weathering rates in alpine catchments of central Colorado, USA
No abstract available.
Authors
R.E. Wanty, P. L. Verplanck, C. Bern, T. Todoro, C. San Juan, E.H. deWitt, T. L. Klein, D. Fey, T.S. Schmidt, S. E. Church
Development of assessment methodologies in support of USGS integrated science-Wyoming Landscape Conservation Initiative Development of assessment methodologies in support of USGS integrated science-Wyoming Landscape Conservation Initiative
No abstract available.
Authors
Robert R. McDougal, JoAnn M. Holloway, Travis S. Schmidt, L.L. Stillings, L.W. Tuttle, S.W. Blecker