Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16782
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
Decline and disappearance of the Dusky Seaside Sparrow from Merritt Island, Florida
The Dusky Seaside Sparrow, Ammospiza maritima nigrescens, was first discovered by Charles J. Maynard near Salt Lake on the St. Johns River west of Titusville, Brevard County, Florida, on March 17, 1872. Later that spring, Maynard found the sparrow to be quite common in the salt marsh on the Canaveral Peninsula in what is now the Merritt Island National Wildlife Refuge on the John F. Kennedy Space
Authors
P.W. Sykes
Weathered petroleum: Effects on mallard egg hatchability
Comparison of the effects of fresh and weathered No. 2 fuel oil and Prudhoe Bay crude oil on mallard embryos. Artificially-incubated eggs exposed by eggshell application to 1-50 ul of fresh or weathered oil on day 8 of incubation. Measured hatching success.
Authors
Robert C. Szaro, N. C. Coon, William C. Stout
Factors controlling the fate of pesticides in rural watersheds of the lower Mississippi River alluvial valley
No abstract available.
Authors
C. J. Schmitt, P. V. Winger
Predictions of future Nearctic landbird vagrants to Europe
Migratory habits of 3I species of vagrants from North America and 73 candidate species not recorded In elther Bntain or Ireland during the 30 years 1947-76 were analysed by multiple regresslon. There was a sIgnificant correlation between the number of British and Irish records and the west-to-east component of normal migration, standard deviation of body weight, mlgratory dIstance, and abundance o
Authors
C.S. Robbins
Dosing free-living nestling starlings with an organophosphate
No abstract available.
Authors
G. V. N. Powell, D.C. Gray
Effects of petroleum hydrocarbons on hepatic function in the duck
1. The indocyanine green dye clearance test for hepatic function was determined in mallard ducks before and during the chronic ingestion (7 months) of representative paraffinic or aromatic petroleum hydrocarbons (PH).2. No mortality or visible symptoms of toxicity occurred in any of the tests. Ingestion of 4000 ppm aromatic PH produced significant increases in liver (25%), plasma clearance of indo
Authors
J.F. Patton, M. P. Dieter
Phthalate plasticizers: Accumulation and effects on weight and food consumption in captive starlings
No abstract available.
Authors
T. J. O'Shea, C. J. Stafford
DDT contamination at Wheeler National Wildlife Refuge
Disposal of industrial waste resulted in massive DDT contamination atWheeler National Wildlife Refuge, Alabama. Nearly a decade after the cessation of DDT manufacturing at the facility responsible, concentrations of DDT residues in the local fauna are still high enough to suggest avian reproductive impairment and mortality. Populations of fish-eating birds are low, endangered species are being ex
Authors
T. J. O'Shea, W.J. Fleming, E. Cromartie
Food use and nutrition of black ducks nesting in Maine
Based on 32 adult black ducks (Anas rubripes) collected during the nesting seasons of 1974-76, the proportion of macro invertebrates (as aggregate [average] percent of dry weight) in the diet of males, egg-laying females, and postlaying females was 60, 75, and 55%, respectivey. Sample sizes were small, and the differences associated with sex and reproductive condition were not signficant. Mollus
Authors
K. J. Reinecke, R.B. Owen