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
Consistency in habitat preference of forest bird species Consistency in habitat preference of forest bird species
The important management conclusion that follows from our results is that the habitat requirements of most forest bird species, although quite specific for each species, apply generally throughout their breeding ranges. Thus a habitat management program that proves beneficial in one part of the breeding range of a species has a high likelihood of success in an area hundreds of kilometers...
Authors
B.R. Noon, D.K. Dawson, D.B. Inkley, C.S. Robbins, S.H. Anderson
Organochlorine residues in eggs of loggerhead and green sea turtles nesting at Merritt Island, Florida--July and August, 1976 Organochlorine residues in eggs of loggerhead and green sea turtles nesting at Merritt Island, Florida--July and August, 1976
Eggs from nine clutches of loggerhead turtles (Caretta caretta) and two clutches of green turtles (Chelonia mydas) were collected as they were laid on Merritt Island, Florida. Eggs were incubated, frozen, and analyzed for organochlorines. Levels of DDE and PCB, the major contaminants, averaged less than 0.08 ppm in loggerhead eggs and were even lower in green turtle eggs. These...
Authors
D. R. Clark, A. J. Krynitsky
Intestinal absorption of 5 chromium compounds in young black ducks (Anas rubripes) Intestinal absorption of 5 chromium compounds in young black ducks (Anas rubripes)
An in vivo intestinal perfusion technique was used to measure the absorption rates of five Cr compounds in black ducks. Cr was absorbed from saline solutions of KCr(SO4)2 and CrO3 at a rate about 1.5 to 2.0 times greater than from solutions of Cr, Cr(NO3)3, and Cr(C5H7O2)3. These results suggest the ionic form of Cr in solution may be an important factor in determining absorption of Cr...
Authors
W. C. Eastin, S. D. Haseltine, H. C. Murray
Reproductive success and nest attentiveness of mallard ducks fed Aroclor 1254 Reproductive success and nest attentiveness of mallard ducks fed Aroclor 1254
A dietary dosage of 25 ppm Aroclor 1254 fed to nine-month-old mallards Anas platyrhynchos for at least a month before egg-laying had no detrimental effect on reproductive success or nest attentiveness when hens were allowed to incubate their own eggs. The treatment caused no effect on number of hens laying, date of first egg laid or clutch size. Fertility of eggs was greater among...
Authors
T. W. Custer, G. H. Heinz
The human influence on seabird nesting success: Conservation implications The human influence on seabird nesting success: Conservation implications
Based on studies of brown pelicans Pelecanus occidentalis californicus and Heermann's gulls Larus heermanni, disturbances by recreationists, educational groups, local fishermen and scientists alike can be seriously disruptive and damaging to breeding seabirds in the Gulf of California and off the west coast of Baja California. Similar instances have been identified throughout the world...
Authors
D. W. Anderson, J.O. Keith
Influence of a local source of DDT pollution on statewide DDT residues in waterfowl wings, northern Alabama, 1978-79 Influence of a local source of DDT pollution on statewide DDT residues in waterfowl wings, northern Alabama, 1978-79
Heavy DDT contamination resulting from a former DDT manufacturing plant in northern Alabama has influenced statewide averages of DDT, DDE, and TDE residues in duck wings tested in the National Pesticide Monitoring Program. In states where contaminant levels in duck wings are high, residue analyses of wings categorized by finer geographic subdivision may be useful in defining the areas of...
Authors
W. James Fleming, T. J. O'Shea
Organochlorine residues and shell thickness in eggs of the clapper rail, common gallinule, purple gallinule, and limpkin (Class Aves), eastern and southern United States, 1972-74 Organochlorine residues and shell thickness in eggs of the clapper rail, common gallinule, purple gallinule, and limpkin (Class Aves), eastern and southern United States, 1972-74
Organochlorine residues and shell thicknesses were surveyed in eggs of the clapper rail (Rallus longirostris), purple gallinule (Porphyrula martinica), common gallinule (Gallinula chloropas), and limpkin (Aramus guarauna) from the eastern and southern United States. Clapper rail eggs were collected during 1972-73 in New Jersey, Virginia, and South Carolina. During 1973-74, gallinule eggs...
Authors
Erwin E. Klaas, H. M. Ohlendorf, E. Cromartie
Organochlorine and heavy metal residues in black duck eggs from the Atlantic Flyway, 1978 Organochlorine and heavy metal residues in black duck eggs from the Atlantic Flyway, 1978
Black duck (Anas rubripes) eggs were collected during 1978 in the Atlantic Flyway. One egg from each of 49 clutches was analyzed for organochlorine compounds and mercury. DDE was detected in 39 eggs, ranging from 0.09 ppm to 3.4 ppm, wet weight. DDE residues were highest in eggs from Delaware, where the mean DDE level was 2.0 ppm. DDT and TDE were present at Iow levels in only five and...
Authors
S. D. Haseltine, B.M. Mulhern, C. Stafford
Establishment, survival, and growth of selected browse species in a ponderosa pine forest Establishment, survival, and growth of selected browse species in a ponderosa pine forest
Information is presented on establishment, survival, and growth of seven selected browse species in a ponderosa pine forest over a 10-year period. Methods of establishment included hand seeding and planting bare-root and containerized stock. Success of different methods differed with shrub species.
Authors
D.R. Dietz, D.W. Uresk, H.E. Messner, L. C. McEwen
The breeding bird atlas in Maryland The breeding bird atlas in Maryland
No abstract available.
Authors
M. K. Klimkiewicz, R. Ringler