Publications
This is a list of publications written by Patuxent employees since Patuxent opened in 1939. To search for Patuxent's publications by author or title, please click below to go to the USGS Publication Warehouse.
Filter Total Items: 8128
An aerial photographic census of Chesapeake Bay and North Carolina canvasbacks An aerial photographic census of Chesapeake Bay and North Carolina canvasbacks
We used conventional 35-mm photography to conduct an aerial photographic census of canvasbacks (Aythya valisineria) throughout Chesapeake Bay (tidal Maryland and Virginia) and coastal North Carolina, 26-30 January 1981. Flock size and sex ratio characteristics were determined from examination of color transparencies of 165 canvasback flocks totaling over 95,000 birds. A sex ratio of 2.91...
Authors
G.M. Haramis, J.R. Goldsberry, D.G. McAuley, E.L. Derleth
Cryogenic preservation of semen from the greater sandhill crane Cryogenic preservation of semen from the greater sandhill crane
No abstract available.
Authors
George F. Gee, Murray R. Bakst, Thomas J. Sexton
Metals in riparian wildlife of the lead mining district of southeastern Missouri Metals in riparian wildlife of the lead mining district of southeastern Missouri
Five species of riparian vertebrates (425 individuals) primarily representing upper trophic levels were collected from the Big River and Black River drainages in two lead mining districts of southeastern Missouri, 1981–82. Big River is subject to metal pollution via erosion and seepage from large tailings piles from inactive lead mines. Black River drains part of a currently mined area...
Authors
K. R. Niethammer, Richard D. Atkinson, Thomas S. Baskett, Fred B. Samson
Atlantic Flyway review: Region V: Patuxent Wildlife Research Center, Laurel, Prince Georges County, MD (390-0764) Atlantic Flyway review: Region V: Patuxent Wildlife Research Center, Laurel, Prince Georges County, MD (390-0764)
This was my 4th year of banding in a powerline right-of-way that is specially managed to encourage growth of dense scrub. Nets were run for 2 to 3 hours each morning, because activity dropped off rapidly after the sun hit the nets. I banded on 79 days, from 1 August to 22 November. Frost continues to be a problem late in the season; the frostpocket effect of the stream valley and the...
Authors
Danny Bystrak
Status and conservation of raptors in the West Indies Status and conservation of raptors in the West Indies
No abstract available.
Authors
J. W. Wiley
Status of the osprey in the West Indies Status of the osprey in the West Indies
No abstract available.
Authors
J. W. Wiley
Pesticide concentrations in snail kite eggs and nestlings in Florida Pesticide concentrations in snail kite eggs and nestlings in Florida
From 1970-1977, unhatched snail kite eggs and young that were found dead at nests in Florida were analyzed by gas chromatography for residues of organochlorine pollutants. The 1970 and 1974 material showed measurable amounts of p,p'-DDE, p,p'-DDD, p,p'-DDT, and dieldrin. Dieldrin and polychlorinated biphenyl (PCB) residues were less than 0.1 ppm in the eggs and were detected in only one...
Authors
P.W. Sykes
Multiple-clutching of wild California condors (Gymnogyps californianus) Multiple-clutching of wild California condors (Gymnogyps californianus)
No abstract available.
Authors
N.F.R. Snyder
Pre-nesting cooperation in birds: another form of helping behavior Pre-nesting cooperation in birds: another form of helping behavior
No abstract available.
Authors
M.S. Foster
The effects of military jet operations on nesting birds of prey The effects of military jet operations on nesting birds of prey
No abstract available.
Authors
D. H. Ellis