Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16783
Transcontinental mourning dove recovery
A Mourning Dove (Zenaida macroura) banded in New York has been reported shot in California. On 25 August 1969, near Palmyra (43°00' N, 77°10' W), New York Department of Environmental Conservation personnel placed U. S. Fish & Wildlife Service band 883-97279 on the leg of a hatching-year Mourning Dove of unknown sex. During the first weekend of the dove season in September 1970, Stan Solus (P.O. Bo
Authors
Brian Sharp
Organochlorine pesticide residues in woodcock, soils and earthworms in Louisiana, 1965
Woodcock (Philohela minor), earthworms, and soil samples were collected from January-March 1965, from fields in southeastern Louisiana approximately 3 years after discontinuance of areal treatments with heptachlor in this region. Heptachlor epoxide residues in woodcock averaged 0.42 ppm (dry weight), conspicuously lower than in 1961 and 1962. Residues of DDE in woodcock averaged 3.62 pprn, highe
Authors
M. A. R. McLane, L. F. Stickel, J.D. Newsom
DDE thins eggshells and lowers reproductive success of captive black ducks
Eggs of captive black ducks fed diets containing DDE at 10 and 30 ppm (dry weight) experienced significant shell thinning and an increase in shell cracking when compared to eggs of untreated black ducks. Eggshells from dosed ducks were: 18-24 percent thinner at the equator than shells from undosed ducks; 28-31 percent thinner at the cap; and 29-38 percent thinner at the apex. Shell cracking aver
Authors
J. R. Longcore, F. B. Samson, T.W. Whittendale
Semiquantitative determination of polychlorinated biphenyls in tissue samples by thin layer chromatography
A method is described for the analysis of polychlorinated biphenyl (PCB) compounds in tissue samples. Cleanup by hexane-aceto-nitrile partitioning and Florisil column chromatography are performed on samples before oxidative treatment to convert DDE to DCBP. PCB components are then determined semi-quantitatively by TLC. No prior separation of PCB from chlorinated pesticides is required. The lower l
Authors
B. M. Mulhern, E. Cromartie, W. L. Reichel, A. A. Belisle
A starling-deterrent wood duck nest box
In many parts of the United States, the starling (Sturnus vulgaris) has I become a serious competitor for nest boxes erected for wood ducks (Aix sponsa). Research at the Patuxent Wildlife Research Center and at Eastern Neck National Wildlife Refuge near Rock Hall, Maryland, demonstrated that horizontal nest structures with semicircular entrance holes 11 inches in diameter were acceptable to nesti
Authors
F. B. McGilvrey, F.M. Uhler
Additional notes on pre-nesting and nesting behavior of the Swainson's warbler
No abstract available.
Authors
B. Meanley