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: 901
Examination of woodcock nest sites in central Pennsylvania
Evidence is given to support Iow selectivity in choice of nest sites by woodcock (Philohela minor). Habitat characteristics measured at 30 woodcock nest sites were compared with non-nest control sites in Huntingdon County, central Pennsylvania. Mean nest density per year was 1/4.8 ha within the 54-ha study area. Of 14 characteristics measured, higher shrub-stem density at nests was the only variab
Authors
R.A. Coon, B.K. Williams, J.S. Lindzey, J.L. George
Effects of erosion control structures along a portion of the northern Chesapeake Bay shoreline
A 6.500-meter reach of western Chesapeake Bay shoreline (lower Mayo Peninsula) lost about 1.1??106 cubic meters of sediment (equivalent to 170 cubic meters lost per meter of shoreline) between 1846 and 1932, when the first aerial photographs show the shoreline already substantially protected by a system of groins and intermittent bulkheading. These structures have eliminated the fastland as a sour
Authors
C.F. Zabawa, R.T. Kerhin, S. Bayley
Sedimentary framework of the Potomac River estuary, Maryland
Analyses of seismic-reflection profiles, sediment cores, grab samples, and side-scan sonar records, along with previously collected borehole data, reveal the characteristics, distribution, and geologic history of the shallow strata beneath the Potomac River estuary. The lowermost strata are sediments of the Chesapeake Group (lower Miocene to lower Pleistocene) that crop out on land near the shore
Authors
Harley J. Knebel, E. Ann Martin, J.L. Glenn, Sally W. Needell
Synthesis and Evaluation of Avian Populations and Habitat Data for Pennsylvania
No abstract available.
Authors
S.H. Anderson, C.S. Robbins, J.R. Partelow, J.S. Weske
Chesapeake Bay most important wintering area for canvasback duck
No abstract available.
Authors
M. C. Perry
Asiatic clam (Corbicula manilensis) and other foods used by waterfowl in the James River, Virginia
Corbicula manilensis was found in the gizzards of 24 ducks of 5 species taken from the James River, Virginia, between 1973 and 1976. Percent average volume in these species ranged from trace to 6%. This is the first known occurrence of this exotic clam in the food of duck in Chesapeake Bay. A total of 135 other food items was identified from the 116 gizzards of 9 species that were examined. Food t
Authors
M. C. Perry, F.M. Uhler
Twenty-five year trends in diving duck populations in Chesapeake Bay
No abstract available.
Authors
M. C. Perry, R. E. Munro, G. M. Haramis
Concentrations of selected trace metals in shallow cores from the tidal Potomac River and Estuary: 1978 and 1979
No abstract available.
Authors
E. Ann Martin, J.L. Glenn, C. A. Rice, G. Harrison, E. Gum, M. Curington
Ecology of a Maryland population of black rat snakes (Elaphe o. obsoleta)
Behavior, growth and age of black rat snakes under natural conditions were investigated by mark-recapture methods at the Patuxent Wildlife Research Center for 22 years (1942-1963), with limited observations for 13 more years (1964-1976). Over the 35-year period, 330 snakes were recorded a total of 704 times. Individual home ranges remained stable for many years; male ranges averaged at least 600 m
Authors
Lucille F. Stickel, William H. Stickel, F. C. Schmid
Benthic communities of the tidal Potomac River and Estuary, Maryland and Virginia, November 1977 through August 1979
No abstract available.
Authors
P.V. Dresler
Lead residues in sora rails from Maryland
During September and October, mi- grating sora rails (Porzana carolina) use tidal marshes of the Patuxent River in Maryland, where they have been hunted for many years. Spent shot accumulates in the marsh during the rail hunting sea- son, and some shot is ingested by the birds. Twelve percent of gizzards from rails collected at the marsh during 1965- 73 contained lead shot (Artmann and Martin 197
Authors
Rey C. Stendell, Joseph W. Artmann, Elwood Martin