Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16743
Analysis of survival, local and seasonal movements of the Rocky Mountain population of Sandhill Cranes Analysis of survival, local and seasonal movements of the Rocky Mountain population of Sandhill Cranes
No abstract available.
Authors
Rod C. Drewien, W. L. Kendall
Sodium cyanide hazards to fish and other wildlife from gold mining operations Sodium cyanide hazards to fish and other wildlife from gold mining operations
Highly toxic sodium cyanide (NaCN) is used increasingly by the international mining community to extract gold and other precious metals through milling of high grade ores and heap leaching of low grade ores. Of the 98 million kg cyanide (CN) consumed in North America in 1989, about 80% was used in gold mining (Knudson 1990). In Canada, more than 90% of the mined gold is extracted from...
Authors
R. Eisler, D. R. Clark, Stanley N. Wiemeyer, Charles J. Henny
Behavior: Interactions and their consequences Behavior: Interactions and their consequences
No abstract available.
Authors
K. vS Hoff, A.R. Blaustein, R.W. McDiarmid, R. Altig
Diversity: Familial and generic characterizations Diversity: Familial and generic characterizations
No abstract available.
Authors
R. Altig, R.W. McDiarmid
Body plan: Development and morphology Body plan: Development and morphology
No abstract available.
Authors
R. Altig, R.W. McDiarmid
A state-of-the-art trap for the brown treesnake A state-of-the-art trap for the brown treesnake
No abstract available.
Authors
G.H. Rodda, T. H. Fritts, C.S. Clark, S.W. Gotte, D. Chiszar
Snake species of the world: A taxonomic and geographic reference. v. 1 Snake species of the world: A taxonomic and geographic reference. v. 1
Given the absence of a current source on snake diversity and nomenclature and the expressed global need to understand better the diversity of our biota, we think that a catalogue of the world snake fauna complete with synonymies at the familial, generic, and specific levels is essential. We provide that here beginning with publication of the first volume. This compendium will facilitate
Authors
R.W. McDiarmid, J. A. Campbell, T. Toure
Hydrologic effects of the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania Hydrologic effects of the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania
Within hours after the Pymatuning earthquake of September 25, 1998, in northwestern Pennsylvania, local residents reported wells becoming dry, wells beginning to flow, and the formation of new springs. About 120 household-supply wells reportedly went dry within 3 months after the earthquake. About 80 of these wells were on a ridge between Jamestown and Greenville, where water-level...
Authors
Gary M. Fleeger, Daniel J. Goode, Theodore F. Buckwalter, Dennis W. Risser
Digital Data Set of 14-Digit Hydrologic Units in Indiana Digital Data Set of 14-Digit Hydrologic Units in Indiana
A hydrologic unit is an area of land that can contribute surface-water runoff to a designated outlet point. As part of an initiative to create a nationally uniform hydrologic-unit data base, the U.S. Geological Survey and the Natural Resources Conservation Service, in cooperation with the Indiana Department of Environmental Management and the Indiana Department of Natural Resources...
Authors
Krysten M. DeBroka, David A. Cohen, Robert E. Dunn, Bruce J. Nielsen
Simulation of ground-water flow and movement of the freshwater-saltwater interface in the New Jersey coastal plain Simulation of ground-water flow and movement of the freshwater-saltwater interface in the New Jersey coastal plain
The confined aquifers of the New Jersey Coastal Plain are sands that range in thickness from 50 to 600 feet and are separated by confining units. The confining units are composed of silts and clays that range in thickness from 500 to 1,000 feet. The aquifers are recharged by precipitation on their outcrop areas. This water then flows laterally downdip and vertically to the deeper...
Authors
Daryll A. Pope, Alison D. Gordon
Hydrogeologic framework and sampling design for an assessment of agricultural pesticides in ground water in Pennsylvania Hydrogeologic framework and sampling design for an assessment of agricultural pesticides in ground water in Pennsylvania
State agencies responsible for regulating pesticides are required by the U.S. Environmental Protection Agency to develop state management plans for specific pesticides. A key part of these management plans includes assessing the potential for contamination of ground water by pesticides throughout the state. As an example of how a statewide assessment could be implemented, a plan is...
Authors
Bruce D. Lindsey, Tammy M. Bickford
Comparison of methods for computing streamflow statistics for Pennsylvania streams Comparison of methods for computing streamflow statistics for Pennsylvania streams
Methods for computing streamflow statistics intended for use on ungaged locations on Pennsylvania streams are presented and compared to frequency distributions of gaged streamflow data. The streamflow statistics used in the comparisons include the 7-day 10-year low flow, 50-year flood flow, and the 100-year flood flow; additional statistics are presented. Streamflow statistics for gaged...
Authors
Marla H. Ehlke, Lloyd A. Reed