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
Colonial waterbird management: a synopsis Colonial waterbird management: a synopsis
No abstract available.
Authors
R.M. Erwin
Bias of animal population trend estimates Bias of animal population trend estimates
A computer simulation study of the population trend estimator used for the Mourning Dove Call-Count Survey, Woodcock Singing Ground Survey, Breeding Bird Survey and other surveys concluded that the estimator had negligible bias in most situations but that observer covariables should not be used with less than five years of data. With rare species (e.g. two birds per route), at least five...
Authors
P.H. Geissler, W.A. Link
Forest fragmentation and its effects on birds Forest fragmentation and its effects on birds
Fragmentation of forest land, whether by suburban development, highways, transmission lines, or poorly planned cutting regimes, seriously affects reproduction by the large numbers of obligate forest interior birds. Many of our warblers, vireos, thrushes, tanagers, and flycatchers are highly migratory insectivorous birds that spend more than half the year in the neotropics, but migrate...
Authors
C.S. Robbins
Workshop summary: Nutrition, condition, and ecophysiology Workshop summary: Nutrition, condition, and ecophysiology
No abstract available.
Authors
K. J. Reinecke, C.D. Ankney, Gary L. Krapu, R.B. Owen, H. H. Prince, D.G. Raveling
Distribution and numbers of American black ducks along the Maine coast during the severe winter of 1980-1981 Distribution and numbers of American black ducks along the Maine coast during the severe winter of 1980-1981
No abstract available.
Authors
J. R. Longcore, J.P. Gibbs
Some considerations in modeling the mallard life cycle Some considerations in modeling the mallard life cycle
We outline a population model proposed to accommodate the full life cycle of the mallard (Anas platyrhynchos}. Events during the breeding season are better understood than events at other times of the year, but recent findings suggest the importance of phenomena away from the breeding grounds. Several processes are discussed relative to mallard population dynamics. Compensatory mortality...
Authors
Douglas H. Johnson, J.D. Nichols, M.J. Conroy, L.M. Cowardin
Autumn migrations of peregrine falcons at Assateague Island, Maryland/Virginia, 1970-1984 Autumn migrations of peregrine falcons at Assateague Island, Maryland/Virginia, 1970-1984
No abstract available.
Authors
F.P. Ward, K. Titus, W.S. Seegar, M.A. Yates, M.R. Fuller
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
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
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