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
The eighty-eighth Christmas bird count. Georgia, Florida The eighty-eighth Christmas bird count. Georgia, Florida
No abstract available.
Authors
P.W. Sykes
Geographic variation in the yellow-billed cuckoo Geographic variation in the yellow-billed cuckoo
Populations of the Yellow-billed Cuckoo, Coocyzus americanus, west of the Rocky Mountains have average wing lengths slightly greater than those of eastern North America, but the difference is not sufficient for taxonomic recognition. There is no geographically oriented variation in bill size or color, and the species is best considered monotypic.
Authors
R.C. Banks
Correlates of nest-defense behavior of common terns Correlates of nest-defense behavior of common terns
Nest-defense behavior was studied at seven Common Tern (Sterna hirundo) colonies in southern coastal New Jersey during June and July 1981. Data were collected weekly on numbers of adults, nests, eggs, and young in relation to the frequency and intensity of dive attacks on a human intruder by nesting terns. I explored the relationships between attack behavior and colony size/density...
Authors
R.M. Erwin
Ecology of hydrilla in the Potomac 1985-1987 Ecology of hydrilla in the Potomac 1985-1987
No abstract available.
Authors
R.S. Hammerschlag
Birds and environmental contaminants in San Francisco and Chesapeake Bays Birds and environmental contaminants in San Francisco and Chesapeake Bays
The direct and indirect effects of human activities, including environmental contamination, upon bird populations in San Francisco Bay and Chesapeake Bay are imperfectly understood, and few data are available. that allow a comparison of the contamination levels in birds from these two areas. Certain trace elements and organochlorine compounds have been found at sufficiently high...
Authors
H. M. Ohlendorf, W. James Fleming
Northern Alabama colonies of the endangered grey bat Myotis grisescens: organochlorine contamination and mortality Northern Alabama colonies of the endangered grey bat Myotis grisescens: organochlorine contamination and mortality
From 1976 to 1986, dead and dying grey bats Myotis grisescens and grey bat guano were collected from caves along the Tennessee River in northern Alabama to determine the possible role of organochlorine chemicals — in particular wastes from a former DDT manufacturing plant near Huntsville—in the mortalities. Concentrations of chemical residues in brains were less than known lethal levels...
Authors
D. R. Clark, F.M. Bagley, W.W. Johnson
Saving the masked bobwhite Saving the masked bobwhite
No abstract available.
Authors
R. R. Gabel, S.J. Dobrett
Reproductive effects of nest-marking studies in an American white pelican colony Reproductive effects of nest-marking studies in an American white pelican colony
In 1981 and 1982 we studied the reproductive success of American White Pelicans in the Klamath Basin of northern California. We observed that reproductive success at one colony became reduced in 1981 when we entered that colony to collect eggs for chemical analysis and to mark nests for an assessment of nesting success. Those pelicans produced only 0.5 Y/N contrasted to pelicans nesting...
Authors
D.E. Boellstorff, D. W. Anderson, H. M. Ohlendorf, E.J. O’Neill
Organochlorine residues in great blue herons from the northwestern United States Organochlorine residues in great blue herons from the northwestern United States
We collected eggs or young Great Blue Herons from eight nesting colonies in the northwestern United States from 1977 through 1982. Subadults were collected at three estuarine areas in Puget Sound in 1981 and dead young or adults were collected at various localities. Nearly all samples analyzed contained organochlorine residues. There was no evidence that nay of the organochlorines...
Authors
R. E. Fitzner, L. J. Blus, Charles J. Henny, D.W. Carlile