Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16905
Pesticide compounds in streamwater in the Delaware River Basin, December 1998-August 2001 Pesticide compounds in streamwater in the Delaware River Basin, December 1998-August 2001
During 1998-2001, 533 samples of streamwater at 94 sites were collected in the Delaware River Basin in Pennsylvania, New Jersey, New York, and Delaware as part of the U.S. Geological Survey National Water-Quality Assessment Program. Of these samples, 531 samples were analyzed for dissolved concentrations of 47 pesticide compounds (43 pesticides and 4 pesticide degradation products); 70...
Authors
R. Edward Hickman
Voices of New World Parrots Voices of New World Parrots
No abstract available.
Authors
Mary Gustafson
Peru: The ecotravellers' wildlife guide Peru: The ecotravellers' wildlife guide
No abstract available.
Authors
Matthew Perry
A passion for wildlife: The history of the Canadian Wildlife Service A passion for wildlife: The history of the Canadian Wildlife Service
This intimate historical account was contracted in 1996 by Environment Canada to naturalist-writer Burnett, who interviewed more than 120 present and former Canadian Wildlife Service (CWS) employees of the 1947–1997 period. Each of the 10 chapters addresses a major topic, followed by a brief account of the chief activities of a five-year period. For example, chapter 1 is on “The Genesis...
Authors
Chandler S. Robbins
Generalized estimators of avian abundance from count survey data Generalized estimators of avian abundance from count survey data
I consider modeling avian abundance from spatially referenced bird count data collected according to common protocols such as capture?recapture, multiple observer, removal sampling and simple point counts. Small sample sizes and large numbers of parameters have motivated many analyses that disregard the spatial indexing of the data, and thus do not provide an adequate treatment of...
Authors
J. Andrew Royle
Modeling birds: an overview Modeling birds: an overview
No abstract available.
Authors
Jeff S. Hatfield
Mineral resource of the month: copper Mineral resource of the month: copper
Beryllium metal is lighter than aluminum and stiffer than steel. These and other properties, including its strength, dimensional stability, thermal properties and reflectivity, make it useful for aerospace and defense applications, such as satellite and space-vehicle structural components. Beryllium’s nuclear properties, combined with its low density, make it useful as a neutron...
Authors
Daniel L. Edelstein
Coring the Chesapeake Bay impact crater Coring the Chesapeake Bay impact crater
In July 1983, the shipboard scientists of Deep Sea Drilling Project Leg 95 found an unexpected bonus in a core taken 150 kilometers east of Atlantic City, N.J. At Site 612, the scientists recovered a 10-centimeter-thick layer of late Eocene debris ejected from an impact about 36 million years ago. Microfossils and argon isotope ratios from the same layer reveal that the ejecta were part...
Authors
C. Wylie Poag
The Homestead kimberlite, central Montana, USA: Mineralogy, xenocrysts, and upper-mantle xenoliths The Homestead kimberlite, central Montana, USA: Mineralogy, xenocrysts, and upper-mantle xenoliths
The Homestead kimberlite was emplaced in lower Cretaceous marine shale and siltstone in the Grassrange area of central Montana. The Grassrange area includes aillikite, alnoite, carbonatite, kimberlite, and monchiquite and is situated within the Archean Wyoming craton. The kimberlite contains 25-30 modal% olivine as xenocrysts and phenocrysts in a matrix of phlogopite, monticellite...
Authors
Hearn B. Carter
Geohydrology of the French Creek Basin and simulated effects of drought and ground-water withdrawals, Chester County, Pennsylvania Geohydrology of the French Creek Basin and simulated effects of drought and ground-water withdrawals, Chester County, Pennsylvania
This report describes the results of a study by the U.S. Geological Survey, in cooperation with the Delaware River Basin Commission, to develop a regional ground-water-flow model of the French Creek Basin in Chester County, Pa. The model was used to assist water-resource managers by illustrating the interconnection between ground-water and surface-water systems. The 70.7-square mile...
Authors
Ronald A. Sloto
Water resources data, Pennsylvania, water year 2003—volume 3. Ohio and St. Lawrence River basins Water resources data, Pennsylvania, water year 2003—volume 3. Ohio and St. Lawrence River basins
Water resources data for the 2003 water year for Pennsylvania consist of records of discharge and water quality of streams; contents and elevations of lakes and reservoirs; and water levels and water quality of ground-water wells. This report, Volume 3 contains (1) discharge records for 61 continuous-record streamflow-gaging stations, 5 partial-record stations and 13 special study and
Authors
Raymond W. Siwicki