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
A supplementary bibliography of the vultures A supplementary bibliography of the vultures
No abstract available.
Authors
S.R. Wilbur
Variation in survival and recovery rates of ring-necked ducks Variation in survival and recovery rates of ring-necked ducks
Band recovery data were used to examine sex-specific, geographic, and temporal variations in survival and recovery rates of ring-necked ducks (Aythya collaris). Survival rates were higher (P 0.05) for males than for females in the preseason-banded sample and in 2 of 3 postseason samples; recovery rates were higher (P 0.05) for females in 1 postseason sample. Survival rates of postseason...
Authors
Michael J. Conroy, Robert T. Eberhardt
Estimating taxonomic diversity, extinction rates, and speciation rates from fossil data using capture-recapture models Estimating taxonomic diversity, extinction rates, and speciation rates from fossil data using capture-recapture models
Methods currently used to estimate taxonomic extinction probabilities from fossil data generally assume that the probability of encountering a specimen in a particular stratum, given that the taxon was extant in the time period and location represented by the stratum, either equals 1.0 or else is a constant for all strata. Methods used to estimate taxonomic diversity (number of taxa) and
Authors
J.D. Nichols, K. H. Pollock
Altered avoidance behavior of young black ducks fed cadmium Altered avoidance behavior of young black ducks fed cadmium
Pairs of adult black ducks (Anas rubripes) were fed a diet containing 0, 4 or 40 ppm cadmium as cadmium chloride. One-week-old ducklings that had been fed the same dietary concentrations of cadmium as had their parents were tested for avoidance of a fright stimulus. Ducklings fed 4 ppm cadmium ran significantly farther from the stimulus than did controls or ducklings fed 40 ppm cadmium...
Authors
G. H. Heinz, S. D. Haseltine, L. Sileo
Oxychlordane, HCS-3260, and nonachlor in birds: Lethal residues and loss rates Oxychlordane, HCS-3260, and nonachlor in birds: Lethal residues and loss rates
Oxychlordane reached lethal levels in birds given dietary dosages of HCS-3260 (70.75% cis-chlordane and 23.51% trans-chlordane) at 6 levels from 50 to 500 ppm. Oxychlordane ranged from 9.4 to 22.1 ppm in brains of cowbirds (Molothrus ater ) grackles (Quiscalus quiscula , and red-winged blackbirds (Agelaius phoeniceus ) that died on dosage and from 1.3 to 4.8 ppm in sacrificed birds...
Authors
L.F. Stickel, W. H. Stickel, R. A. Dyrland, D.L. Hughes
Sample size estimates: A preliminary analysis of sample sizes required for mark-recovery and mark-resighting studies of manatees (Trichechus manatus) in Florida Sample size estimates: A preliminary analysis of sample sizes required for mark-recovery and mark-resighting studies of manatees (Trichechus manatus) in Florida
No abstract available.
Authors
J.M. Packard, J.D. Nichols
Turtles, birds, and mammals in the northern Gulf of Mexico and nearby Atlantic waters: an overview based on aerial surveys of OCS areas, with emphasis on oil and gas effects Turtles, birds, and mammals in the northern Gulf of Mexico and nearby Atlantic waters: an overview based on aerial surveys of OCS areas, with emphasis on oil and gas effects
No abstract available.
Authors
T. H. Fritts, A.B. Irvine, R.D. Jennings, L.A. Collum, W. Hoffman, M.A. McGehee
Statistical problems arising from surveys of rare and endangered forest birds Statistical problems arising from surveys of rare and endangered forest birds
No abstract available.
Authors
F. L. Ramsey, J. M. Scott, R.J. Clark
Social influences on reproduction in wolves Social influences on reproduction in wolves
No abstract available.
Authors
J.M. Packard, L.D. Mech, U.S. Seal
Captive condor propagation and recommended release procedures Captive condor propagation and recommended release procedures
No abstract available.
Authors
R.C. Erickson, J. W. Carpenter
Effects of chronic dietary lead in American kestrels (Falco sparverius) Effects of chronic dietary lead in American kestrels (Falco sparverius)
American kestrels were fed a diet containing 0, 10, or 50 ppm lead (Pb) powder for at least 5 mo. Blood delta-aminolevulinic acid dehydratase (ALAD) activity in birds receiving 50 ppm Pb was as low as 20% of controls but no significant effects were noted in packed cell volume (PCV) or hemoglobin concentration (Hb). Mean liver Pb residues in birds fed 50 ppm Pb were 1.3 and 2.4 ppm (dry...
Authors
J. Christian Franson, Louis Sileo, Oliver H. Pattee, John F. Moore