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
Acadian flycatcher eats pokeberry fruit Acadian flycatcher eats pokeberry fruit
No abstract available.
Authors
C.S. Robbins
Fortieth breeding bird census. 25. Hickory-oak-ash floodplain forest Fortieth breeding bird census. 25. Hickory-oak-ash floodplain forest
No abstract available.
Authors
C.S. Robbins
Chromosomal variation in Vampyressa and a review of chromosomal evolution in the Phyllostomidae (Chiroptera) Chromosomal variation in Vampyressa and a review of chromosomal evolution in the Phyllostomidae (Chiroptera)
Comparisons of the karyotypes of the species of Vampyressa suggest two modes of chromosomal rearrangements in the derivation of the Vampyressa karyotypes: pericentric inversions in V. brocki, V. nymphaea, and V. bidens; and translocations (fusions) in V. melissa and the variants of V. pusilla. This Vampyressa phylogenetic model was used to evaluate the possible derivations of the...
Authors
Alfred L. Gardner
Quantitative analysis of American woodcock nest and brood habitat Quantitative analysis of American woodcock nest and brood habitat
Sixteen nest and 19 brood sites of American woodcock (Philohela minoI) were examined in northern lower Michigan between 15 April and 15 June 1974 to determine habitat structure associated with these sites. Woodcock hens utilized young, second-growth forest stands which were similar in species composition for both nesting and brood rearing. A multi-varIate discriminant function analysis...
Authors
A. Bourgeois
Nationwide residues of mercury, lead, cadmium, arsenic, and selenium in starlings, 1973 Nationwide residues of mercury, lead, cadmium, arsenic, and selenium in starlings, 1973
Starlings (Sturnus vulgaris) collected in 1973 at 51 sites throughout the continental United States were analyzed for mercury, lead, cadmium, arsenic, and selenium. All samples contained detectable levels of these elements. In general, residues were low: mercury residues ranged from
Authors
Donald H. White, J. R. Bean, J. R. Longcore
Residues of environmental pollutants and shell thinning in merganser eggs Residues of environmental pollutants and shell thinning in merganser eggs
Clutches of merganser eggs were collected in 1973 and 1975 to determine whether levels of organochlorines and mercury might be responsible for possible population declines and to compare eggshell measurements with those of early museum collections. One egg per clutch was selected randomly for chemical analysis. Overall, residues of DDE, PCB?s, and mercury were low in Hooded Merganser...
Authors
Donald H. White, E. Cromartie
Effects of tide cycles on habitat selection and habitat partitioning by migrating shorebirds Effects of tide cycles on habitat selection and habitat partitioning by migrating shorebirds
We studied assemblages of feeding shorebirds in three intertidal habitats on the coast of New Jersey during August to document how species segregate spatially both among and within habitats and to determine the effects of tidal cycles on these patterns. The habitats were a sandy beach facing the ocean proper (outer beach), a sandy beach on the mainland side of a barrier island (inner...
Authors
J. Burger, M.A. Howe, D.C. Hahn, J. Chase
Ticks as a factor in the 1975 nesting failure of Texas brown pelicans Ticks as a factor in the 1975 nesting failure of Texas brown pelicans
No abstract available.
Authors
Kirk A. King, D.R. Blankinship, R.T. Paul, R.C.A. Rice
A research program for the endangered masked bobwhite A research program for the endangered masked bobwhite
No abstract available.
Authors
D. H. Ellis, John A. Serafin