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
Lead poisoning in a sample of Maryland mourning doves
A sick mourning dove (Zenuidura macroura) collected in Maryland with 2 lead shot in the gizzard showed acid-fast intranuclear inclusion bodies in the kidney tubular cells. The liver and the tibia contained 72 ppm and 187 ppm lead (wet weight) respectively. Four gizzards from 62 doves killed by hunters contained lead shot. The lead content of 43 dove livers ranged from 0.4-14.0 ppm (wet weight); 40
Authors
L. N. Locke, George E. Bagley
Case report: Coccidiosis and lead poisoning in Canada geese
Four dead Canada geese (Branta canadensis L.) collected at the Prime Hook National Wildlife Refuge, Delaware were found to have both marked duodenal lesions of coccidiosis and high levels of lead in the liver. Although only one goose had lead shot in the gizzard, all four had levels of lead in the liver suggestive of lead poisoning.
Authors
L. N. Locke, George E. Bagley
Population changes in Delaware--from the Breeding Bird Survey, 1966
No abstract available.
Authors
J. T. Linehan
Breeding-bird populations in Delaware's urban woodlots
No abstract available.
Authors
J. T. Linehan, R. E. Jones, J. R. Longcore
Some blood chemistry values for five Chesapeake Bay area fishes
Blood samples from gizzard shad,largemouth bass, white perch, pumpkinseed, and
toadfish were analyzed for hemoglobin, total plasma protein, total plasma cholesterol, and ion
concentrations of plasma sodium, potassium, and chloride. The hemoglobin concentration and total plasma cholesterol found in a given species seem to have positive correlation with the customary activity level of that species
Authors
J. B. Hunn, P.F. Robinson
The status of the osprey in Cape May County, New Jersey, between 1939 and 1963
Comparison is made of the population of ospreys in Cape May County, N.J., in the late 1930's with that in 1963, and with a population of these birds at Tilghman Island, Maryland. Production of young per nest in the 1930's compares favorably with the production of young in the populations examined in 1963. It is suggested, based on historical evidence, that a decline in the numbers of these birds h
Authors
F. C. Schmid
Nesting of hooded mergansers of the Patuxent Wildlife Research Center, Laurel, Maryland
The first known record of Hooded Mergansers (Lophodytes cucullatus) nesting on the coastal plain of Maryland was in 1961, when Mr. Francis Uhler (pers. comm) found two clutches in Wood Duck nest boxes in impoundments at the Patuxent Wildlife Research Center, about five miles southeast of Laurel, Maryland. R.E. Stewart and C.S. Robbins (“Birds of Maryland and the District of Columbia,” N. Amer. Fau
Authors
F. B. McGilvrey
Early-fall food and habitat of the sora in the Patuxent River Marsh, Maryland
No abstract available.
Authors
B. Meanley
Tidal dispersal of herbicides to control Erasian watermilfoil in the Chesapeake Bay
No abstract available.
Authors
J.H. Steenis, Vernon D. Stotts
Pasteurella sp. from an epizootic of white perch (Roccus americanus) in Chesapeake Bay tidewater areas
No abstract available.
Authors
S. F. Snieszko, G. L. Bullock, Edgar Hollis, J. G. Boone
Pasteurella sp. from an epizootic of white perch (Roccus americanus) in Chesapeake Bay Tidewater areas
No abstract available.
Authors
S. F. Snieszko, G. L. Bullock, E. Hollis, J. G. Boone
Nesting ecology and reproductive rate of the red-winged blackbird in tidal marshes of the upper Chesapeake Bay region
The nesting ecology and reproductive rate of the polygynous red-winged blackbird, Agelaius phoeniceus, were studied in the tidal marshes of Maryland during the period of 1958 through 1961. Sixteen nesting colonies were located in six major marsh communities of the Eastern Shore and were visited approximately twice a week from late April to mid-August. The average clutch size for 537 clutches was 3
Authors
B. Meanley, J.S. Webb