Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16780
The occurrence of lead in tissues of wild birds
No abstract available.
Authors
George E. Bagley, L. N. Locke
Lead poisoning in Canada geese in Delaware
Trainer and Hunt (9) stated that lead poisoning of Canada geese (Branta canadensis) had been reported from three states: North Carolina, Indiana, and Wisconsin. More recently, the Mississippi Flyway Council (8) cited suspected cases of lead poisoning of Canada geese in Massachusetts, New York, Pennsylvania, Delaware, Virginia, and Maryland. Hanson and Smith (6) also cited cases in widely separat
Authors
George E. Bagley, Louis N. Locke, Gordon T. Nightingale
Care, food consumption, and behavior of bald eagles used in DDT tests
Twenty-seven Bald Eagles captured in southeastern Alaska were used in feeding tests to determine the effects of DDT in the diet.....Trapping and housing of eagles are discussed. Various aspects of eagle behavior and handling techniques are also presented. Recommendations are made for preventing injuries and increasing the comfort of captive birds.....The 1962 test birds consumed an average of 274
Authors
N.J. Chura, P.A. Stewart
Trial monitoring of pesticides in wings of mallards and black ducks
No abstract available.
Authors
R.G. Heath, R. M. Prouty
Relative toxicity of lead and selected substitute shot types to game farm mallards
The acute toxicity of lead, three types of plastic-coated lead, two lead-magnesium alloys, iron, copper, zinc-coated iron, and molybdenum-coated iron shot were tested in year-old male game farm mallards. Mallards (Anus platyrhynchos) were fed eight number 6 shot of each type and observed for a period of 60 days. Ducks used totaled 230 and most shot types were tested in three replicates of 8 ducks
Authors
H.D. Irby, L.N. Locke, George E. Bagley
Residues in fish, wildlife, and estuaries. Indicator species near top of food chain chosen for assessment of pesticide base levels in fish and wildlife--clams, oysters, and sediment in estuarine environment
Federal efforts to determine pesticide levels in fish and wildlife are being carried out by the Bureau of Sport Fisheries and Wildlife, U. S. Department of the Interior. Monitoring estuarine pesticide levels in clams, oysters, and sediments is a joint endeavor of the Bureau of Commercial Fisheries, U. S. Department of the Interior, and the Water Supply and Sea Resources Program of the National Ce
Authors
R.E. Johnson, T.C. Carver, E. H. Dustman
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
Histopathology of mallards dosed with lead and selected substitute shot
The histopathological response of male game farm mallards fed lead, three types of plastic-coated lead, two lead-magnesium alloys, iron, copper, zinc-coated iron, and molybdenum-coated iron shot was studied. Mallards fed lead, plastic-coated lead, or lead-magnesium alloy shot developed a similar pathological response, including the formation of acid-fast intranuclear inclusion bodies in the kidney
Authors
L. N. Locke, H.D. Irby, 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
Recent observations of Eurasian watermilfoil in Currituck Sound, North Carolina, and other coastal southeastern states
No abstract available.
Authors
T.E. Crowell, J.H. Steenis, J.L. Sincock