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 Mayfield method of estimating nesting success: A model, estimators and simulation results The Mayfield method of estimating nesting success: A model, estimators and simulation results
Using a nesting model proposed by Mayfield we show that the estimator he proposes is a maximum likelihood estimator (m.l.e.). M.l.e. theory allows us to calculate the asymptotic distribution of this estimator, and we propose an estimator of the asymptotic variance. Using these estimators we give approximate confidence intervals and tests of significance for daily survival. Monte Carlo
Authors
Gary L. Hensler, J.D. Nichols
Growth of mallards fed phosphamidon for 13-day periods during three different developmental stages Growth of mallards fed phosphamidon for 13-day periods during three different developmental stages
Mallard ducklings (Anas platyrhynchos) were exposed to a 13-day dietary treatment of 0, 0·5 or 5·0 ppm phosphamidon at one of three successive age intervals (5–17 days, 18–30 days, or 31–43 days) during a 10-week growth period. Weekly measurements of body weight, wing length, primary feather length, and bill length revealed slower development of primary feathers in those birds treated...
Authors
S. Haseltine, Gary L. Hensler
Artificial burrows provide new insight into burrowing owl nesting biology Artificial burrows provide new insight into burrowing owl nesting biology
No abstract available.
Authors
Charles J. Henny, L. J. Blus
Embryotoxic effects of benzo[a]pyrene, chrysene and 7,12-dimethylbenz[a]-anthracene in petroleum hydrocarbon mixtures in mallard ducks Embryotoxic effects of benzo[a]pyrene, chrysene and 7,12-dimethylbenz[a]-anthracene in petroleum hydrocarbon mixtures in mallard ducks
Studies with different avian species have revealed that surface applications of microliter amounts of some crude and fuel oils that coat less than 70% of the egg surface result in considerable reduction in hatching with teratogenicity and stunted growth. Other stUdies have shown that the embryo toxicity is dependent on the aromatic hydrocarbon content, further suggesting that the...
Authors
D. J. Hoffman, M. L. Gay
Texas barrier island region ecological characterization: environmental synthesis papers Texas barrier island region ecological characterization: environmental synthesis papers
No abstract available.
Authors
D.M. Shew, R.H. Baumann, T. H. Fritts, L.S. Dunn
Roads and roadside habitat in relation to small mammal distribution and abundance Roads and roadside habitat in relation to small mammal distribution and abundance
No abstract available.
Authors
L.W. Adams, A. D. Geis
Interpreting population estimates of birds following pesticide applications--behavior of male starlings exposed to an organophosphate pesticide Interpreting population estimates of birds following pesticide applications--behavior of male starlings exposed to an organophosphate pesticide
We determined activity budgets for 10 pairs of captive male Starlings between 7 May and 18 July 1980. Our objective was to quantify changes in behavior after exposure to an organophosphate (OP) pesticide and to assess the impact of changes in behavior on the interpretation of population estimates of birds following pesticide applications. We observed each pair of males for an hour at 07...
Authors
C.E. Grue, B.J. Shipley
Polychlorinated biphenyls in a wild mink population Polychlorinated biphenyls in a wild mink population
No abstract available.
Authors
T. J. O'Shea, T. E. Kaiser, G.R. Askins, J.A. Chapman
Characterization of petroleum hydrocarbons in tissues of birds killed in the Amoco Cadiz oil spill Characterization of petroleum hydrocarbons in tissues of birds killed in the Amoco Cadiz oil spill
Results of the chemical analysis for petroleum hydrocarbons of muscle and liver tissue of several species of seabirds found washed ashore in the area affected by the Amoco Cadiz oil spill.
Authors
G.C. Lawler, J.P. Holmes, D.M. Adamkiewicz, M.I. Shields, J. #NAME? Monnat, J.L. Laseter
Remarks on the use of mark-recapture methodology in estimating avian population size Remarks on the use of mark-recapture methodology in estimating avian population size
No abstract available.
Authors
J.D. Nichols, B.R. Noon, S.L. Stokes, J.E. Hines
Tests of hearing ability Tests of hearing ability
No abstract available.
Authors
F. L. Ramsey, J. M. Scott
Synthesis and Evaluation of Avian Populations and Habitat Data for Pennsylvania Synthesis and Evaluation of Avian Populations and Habitat Data for Pennsylvania
No abstract available.
Authors
S.H. Anderson, C.S. Robbins, J.R. Partelow, J.S. Weske