Publications
The USGS publishes peer-reviewed reports and journal articles which are used by Chesapeake Bay Program resource managers and policy makers to make science-based decisions for ecosystem conservation and restoration. Use the Search box below to find publications on selected topics.
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Filter Total Items: 942
Chemical pollutants in field-collected canvasback tissues, eggs, and food materials Chemical pollutants in field-collected canvasback tissues, eggs, and food materials
In 1972 studies began on the levels of environmental pollutants in canvasback tissues, eggs, and food items. The purpose of the studies were to determine if the levels of toxic chemicals found in canvasbacks were of the magnitude to cause problems affecting reproduction and survival. Overall, levels of organochlorine pesticides and PCB's were low in canvasbacks and their eggs. Some...
Authors
Donald H. White, M. P. Dieter, Rey C. Stendell
Osprey productivity during the mid-fifties in a portion of Chesapeake Bay Osprey productivity during the mid-fifties in a portion of Chesapeake Bay
No abstract available.
Authors
Charles J. Henny, Vernon D. Stotts
Effects of environmental pollutants on Connecticut and Maryland ospreys Effects of environmental pollutants on Connecticut and Maryland ospreys
Osprey (Pandion haliaetus) eggs were exchanged between Connecticut and Maryland osprey nests in 1968 and 1969 to test the hypothesis that the decline in reproductive success of Connecticut ospreys was caused by something within the external environment of the eggs. Incubation of 30 Connecticut osprey eggs by Maryland ospreys did not improve the hatching rate. Forty-five Maryland osprey...
Authors
Stanley N. Wiemeyer, P.R. Spitzer, W.C. Krantz, T. G. Lamont, E. Cromartie
Early nesting of king rail in Dorchester County, Maryland Early nesting of king rail in Dorchester County, Maryland
No abstract available.
Authors
B. Meanley
Birds and Marshes of the Chesapeake Bay Country Birds and Marshes of the Chesapeake Bay Country
No abstract available.
Authors
B. Meanley
Geohydrologic reconnaissance of the upper Potomac River basin Geohydrologic reconnaissance of the upper Potomac River basin
The upper Potomac River basin, in the central Appalachian region in Pennsylvania, Maryland, Virginia, and West Virginia, is a humid temperate region of diverse fractured rocks. Three geohydrologic terranes, which underlie large parts of the basin, are described in terms of their aquifer characteristics and of the magnitude and duration of their base runoff: (1) fractured rock having a...
Authors
Frank W. Trainer, Frank A. Watkins
The 1973 distribution and abundance of breeding ospreys in the Chesapeake Bay The 1973 distribution and abundance of breeding ospreys in the Chesapeake Bay
An aerial survey in association with several intensive ground surveys yielded the first estimate of the size of the osprey (Pandion haliaetus carolinensis) nesting population in Chesapeake Bay. The 1973 population was estimated at 1,450 ± 30 pairs, of which 713 were on the western shore and 737 on the eastern shore. A small percentage of nonbreeders (possibly 2-5 percent) may be included...
Authors
Charles J. Henny, Morton M. Smith, Vernon D. Stotts
Red-cockaded woodpecker near Bowie, Maryland Red-cockaded woodpecker near Bowie, Maryland
No abstract available.
Authors
B. Meanley, Matthew C. Perry