Publications
These publications showcase the significant science conducted in our Science Centers.
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Reporting of Real Time River Levels in Massachusetts and Rhode Island Reporting of Real Time River Levels in Massachusetts and Rhode Island
Introduction In times of floods and droughts, immediate access to river level data is important to officials charged with the responsibilities of protecting lives and property by taking actions to diminish the adverse effects of the emergency. The U.S. Geological Survey (USGS), in cooperation with many Federal, State, and local agencies, is the Nation's principal collector of accurate...
Authors
Russell A. Gadoury
Results of borehole geophysical logging and aquifer-isolation tests conducted in the John Wagner and Sons, Inc. former production well, Ivyland, Pennsylvania Results of borehole geophysical logging and aquifer-isolation tests conducted in the John Wagner and Sons, Inc. former production well, Ivyland, Pennsylvania
A suite of borehole geophysical logs and heat-pulse-flowmeter measurements run in the former production well at the John Wagner and Sons, Inc. plant indicate two zones of borehole flow. In the upper part of the well, water enters the borehole through a fracture at 90 ft (feet) below floor level, moves upward, and exits the borehole through a fracture at 72 ft below floor level. Water...
Authors
Ronald A. Sloto
Composite recovery type curves in normalized time from Theis' exact solution Composite recovery type curves in normalized time from Theis' exact solution
Type curves derived from Theis’ exact nonequilibrium well function solution are proposed for graphical estimation of aquifer hydraulic properties, transmissivity (T), and storage coefficient (S), from water‐level recovery data after cessation of a constant‐rate discharge test. Drawdown (on log scale) is plotted versus the ratio of time since pumping stopped to duration of pumping, a...
Authors
Daniel J. Goode
Another instance of a Carolina chickadee laying eggs in two nests Another instance of a Carolina chickadee laying eggs in two nests
No abstract available.
Authors
R. B. Clapp, A.C. Mellinger
Reproduction of black-crowned night-herons related to predation and contaminants in Oregon and Washington, USA Reproduction of black-crowned night-herons related to predation and contaminants in Oregon and Washington, USA
We studied reproductive characteristics of Black-crowned Night-Herons (Nycticorax nycticorax) at four colonies in south central Washington and one colony in north central Oregon in 1991. Nest success, adjusted using the Mayfield method, was significantly different between colonies and ranged from 12-84% to hatching and 12-73% to 14 days post-hatching. The mean number of young surviving...
Authors
L. J. Blus, Barnett A. Rattner, M. J. Melancon, Charles J. Henny
Secondary poisoning of kestrels by white phosphorus Secondary poisoning of kestrels by white phosphorus
Since 1982, extensive waterfowl mortality due to white phosphorous (P4) has been observed at Eagle River Flats, a tidal marsh near Anchorage, Alaska. Ducks and swans that ingest P4 pellets become lethargic and may display severe convulsions. Intoxicated waterfowl attract raptors and gulls that feed on dead or dying birds. To determine if avian predators can be affected by secondary...
Authors
Donald W. Sparling, Nicholas E. Federoff
Cytochrome P450 and organochlorine contaminants in black-crowned night-herons from the Chesapeake Bay region, USA Cytochrome P450 and organochlorine contaminants in black-crowned night-herons from the Chesapeake Bay region, USA
Black-crowned night-heron (Nycticorax nycticorax) offspring were collected from a relatively uncontaminated coastal reference site (next to Chincoteague National Wildlife Refuge, VA, USA) and two sites in the Chesapeake Bay watershed (Baltimore Harbor, MD and Rock Creek Park, Washington, DC, USA). Hepatic microsomal activities of benzyloxyresorufin-O-dealkylase and ethoxyresorufin-O...
Authors
Barnett A. Rattner, Mark J. Melancon, Clifford P. Rice, Walter Riley, John D. Eisemann, Randy K. Hines
Po'ouli (Melamprosops phaeosoma) Po'ouli (Melamprosops phaeosoma)
No abstract available.
Authors
T.K. Pratt, C. B. Kepler, T.L.C. Casey
Acidification of experimental wetlands: Effects on wetland productivity and survival of juvenile black ducks Acidification of experimental wetlands: Effects on wetland productivity and survival of juvenile black ducks
Six man-made wetlands (0.02 ha each) and pen-reared broods of American black ducks (Anas rubripes) were used to assess the effects of reduced pH on the quality of fish- free, palustrine habitat for brood rearing. Acid treatment was assigned randomly among newly constructed wetlands during April through June 1984-85, to simulate depressed pH from snowmelt and spring rain. Sampling of...
Authors
G.M. Haramis, Diane S. Chu, C.M. Bunck, T.M. Mingo, W.W.R. Schaffner
Breeding habitat workshop Breeding habitat workshop
No abstract available.
Authors
Keith McAloney, J. R. Longcore
Black duck production workshop Black duck production workshop
No abstract available.
Authors
D.G. Krementz, A. Reed
Effects of harvest restrictions on black duck harvest and populations trends Effects of harvest restrictions on black duck harvest and populations trends
No abstract available.
Authors
J.R. Serie, R.E. Trost, J.R. Sauer