Conference Papers
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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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Panel: Eco-informatics and decision making managing our natural resources
This panel responds to the December 2004 workshop on Eco-Informatics and Decision Making [1], which addressed how informatics tools can help with better management of natural resources and policy making. The workshop was jointly sponsored by the NSF, NBII, NASA, and EPA. Workshop participants recommended that informatics research in four IT areas be funded: modeling and simulation, data quality, i
Authors
J.B. Gushing, T. Wilson, F. Martin, J. Schnase, S. Spengler, L. Sugarbaker, T. Pardo
Planning and implementation of a seismic monitoring system for the bill emerson memorial bridge in cape Girardeau, MO
[No abstract available]
Authors
B.A. Hartnagel, J. O'Connor, W.-H. Yen, P. Clogston, M. Çelebi
Polar bear research in Alaska
Since the 13th Working Meeting of the Polar Bear Specialist Group the U.S. Geological Survey (USGS) has seen the completion of many research projects and the start of many new ones. Much has been accomplished and yet we have new challenges awaiting us. This report summarises our focal questions and progress in those areas.
Authors
George M. Durner, Steven C. Amstrup, Geoff S. York, Eric V. Regehr, Kristin S. Simac, Tom S. Smith, Steven T. Partridge, Torsten Bentzen, Kristin S. Amstrup, David C. Douglas
Postrelease movements and survival of adult and young black-footed ferrets
A successful captive breeding program for highly endangered black-footed ferrets (Mustela nigripes) has resulted in surplus animals that have been released at multiple sites since 1991. Because reproductive output of captive ferrets declines after several years, many adult ferrets must be removed from captive breeding facilities annually to keep total production high. Adults are routinely released
Authors
Dean E. Biggins, Jerry L. Godbey, Travis M. Livieri, Marc R. Matchett, Brent D. Bibles
Prediction and discovery of new geothermal resources in the Great Basin: Multiple evidence of a large undiscovered resource base
Geothermal potential maps by themselves cannot directly be used to estimate undiscovered resources. To address the undiscovered resource base in the Great Basin, a new and relatively quantitative methodology is presented. The methodology involves three steps, the first being the construction of a data-driven probabilistic model of the location of known geothermal systems using weights of evidence.
Authors
M.F. Coolbaugh, G. L. Raines, R. E. Zehner, L. Shevenell, C.F. Williams
Profile of microflora of the posterior intestine of Chinook salmon before, during, and after administration of rations with and without erythromycin
We describe the resident heterotrophic aerobic microflora of the salmonid posterior intestine before, during, and after the administration of rations with erythromycin in a hatchery raceway environment. We compare the profiles of medicated Chinook salmon Oncorhynchus tshawytscha with those of control fish that were not fed erythromycin. The combined counts of bacteria and yeasts per gram of fish i
Authors
C.M. Moffitt, S.M.A. Mobin
Protolith and metamorphic ages of the Haiyangsuo Complex, eastern China: A non-UHP exotic tectonic slab in the Sulu ultrahigh-pressure terrane
The Haiyangsuo Complex in the NE Sulu ultrahigh-pressure (UHP) terrane has discontinuous, coastal exposures of Late Archean gneiss with amphibolitized granulite, amphibolite, Paleoproterozoic metagabbroic intrusives, and Cretaceous granitic dikes over an area of about 15 km2. The U-Pb SHRIMP dating of zircons indicates that theprotolith age of a garnet-biotite gneiss is >2500 Ma, whereas the granu
Authors
J. G. Liou, T. Tsujimori, W. Chu, R. Y. Zhang, J. L. Wooden
Radio telemetry for black-footed ferret research and monitoring
By 1973, radio telemetry was regarded as an important potential tool for studying the elusive, nocturnal, and semifossorial black-footed ferret (Mustela nigripes), but fears of using invasive techniques on this highly endangered mammal caused delays. We began radio collaring ferrets in 1981. Use of radio telemetry on ferrets proved to be both challenging and rewarding. We document two decades of d
Authors
Dean E. Biggins, Jerry L. Godbey, Brian J. Miller, Louis R. Hanebury
Radiometric calibration stability of the EO-1 advanced land imager: 5 years on-orbit
The Advanced Land Imager (ALI) was developed as a prototype sensor for follow on missions to Landsat-7. It was launched in November 2000 on the Earth Observing One (EO-1) satellite as a nominal one-year technology demonstration mission. As of this writing, the sensor has continued to operate in excess of 5 years. Six of the ALl's nine multi-spectral (MS) bands and the panchromatic band have simila
Authors
B. L. Markham, L. Ong, J. A. Barsi, J. A. Mendenhall, D. E. Lencioni, D. L. Helder, D. M. Hollaren, R. Morfitt
Real-time seismic monitoring of the integrated cape girardeau bridge array and recorded earthquake response
This paper introduces the state of the art, real-time and broad-band seismic monitoring network implemented for the 1206 m [3956 ft] long, cable-stayed Bill Emerson Memorial Bridge in Cape Girardeau (MO), a new Mississippi River crossing, approximately 80 km from the epicentral region of the 1811-1812 New Madrid earthquakes. The bridge was designed for a strong earthquake (magnitude 7.5 or greater
Authors
M. Çelebi
Recurring waterbird mortalities and unusual etiologies
Over the last decade, the National Wildlife Health Center of the United States Geological Survey has documented various largescale mortalities of birds caused by infectious and non-infectious disease agents. Some of these mortality events have unusual or unidentified etiologies and have been recurring. While some of the causes of mortalities have been elucidated, others remain in various stages of
Authors
Rebecca A. Cole, J. Christian Franson