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
Early growth of roseate terns chicks as an index of parental quality Early growth of roseate terns chicks as an index of parental quality
No abstract available.
Authors
I.C.T. Nisbet, J. A. Spendelow, Jeff S. Hatfield, G. Gough, James M. Zingo
Estimates of managed waterfowl habitat on private lands in the Mississippi alluvial valley Estimates of managed waterfowl habitat on private lands in the Mississippi alluvial valley
No abstract available.
Authors
W.B. Uihlein, K. J. Reinecke, R.M. Kaminski
Whooping crane mortality at Patuxent Wildlife Research Center, 1982-95 Whooping crane mortality at Patuxent Wildlife Research Center, 1982-95
Whooping cranes (Grus americana) have been reared at Patuxent Wildlife Research Center since 1966. During 1982-95 there were 103 mortalities caused by infectious and parasitic diseases (46%), trauma (21%), anatomic abnormalities (17%), miscellaneous conditions (12%), and open or no diagnoses (5%). The implications that disease may have on new whooping crane flocks in Florida and Canada...
Authors
Glenn H. Olsen, J.A. Taylor, G.F. Gee
Amphibians and reptiles I: Biodiversity assessment in the Lower Urubamba Region Amphibians and reptiles I: Biodiversity assessment in the Lower Urubamba Region
No abstract available.
Authors
R. Reynolds, T. Fritts, S. Gotte
Monitoring Canadian bird populations with winter counts Monitoring Canadian bird populations with winter counts
Two winter bird surveys in Canada have range-wide population monitoring potential: Christmas Bird Counts (CBCs) and Project FeederWatch (PFW). CBC trends are shown to be correlated to Breeding Bird Survey (BBS) trends, whether or not part of the winter range lies outside the CBC coverage area. Some species are poorly covered by this survey (e.g. seabirds, nocturnal species, and...
Authors
Erica H. Dunn, J.R. Sauer
The Bumpus house sparrow data: A reanalysis using structural equation models The Bumpus house sparrow data: A reanalysis using structural equation models
We analysed the data of H.C. Bumpus on the survival of house sparrows (Passer domesticus) using structural equation modelling techniques. Using data on seven morphological variables measured by Bumpus, we tested and confirmed a three-factor model that characterized physical attributes for general size, leg size and head size. Although males were physically larger than females, we found...
Authors
Bruce H. Pugesek, Adrian Tomer
Empirical Bayes estimation of proportions with application to cowbird parasitism rates Empirical Bayes estimation of proportions with application to cowbird parasitism rates
Bayesian models provide a structure for studying collections of parameters such are considered in the investigation of communities, ecosystems, and landscapes. This structure allows for improved estimation of individual parameters by considering them in the context of a group of related parameters. Individual estimates are differntially adjusted toward in overall mean, with the magnitude...
Authors
William A. Link, D. Caldwell Hahn
Survival and recovery rates of American eiders in eastern North America Survival and recovery rates of American eiders in eastern North America
We analyzed banding and recovery data of adult female American eiders (Somateria mollissima dresseri) captured during the breeding season in eastern North America. We estimated survival rates for birds originating in the Atlantic Coast subpopulation to be 0.8730 ± 0.0156 (SE) while recovery rates were 0.0101 ± 0.0080 (SE). Support for several banding reference areas of American eiders...
Authors
David G. Krementz, James E. Hines, David F. Caithamer
Extremes in ecology: Avoiding the misleading effects of sampling variation in summary analyses Extremes in ecology: Avoiding the misleading effects of sampling variation in summary analyses
Surveys such as the North American Breeding Bird Survey (BBS) produce large collections of parameter estimates. One's natural inclination when confronted with lists of parameter estimates is to look for the extreme values: in the BBS, these correspond to the species that appear to have the greatest changes in population size through time. Unfortunately, extreme estimates are liable to...
Authors
William A. Link, John R. Sauer
Evaluating causes of population change in North American insectivorous songbirds Evaluating causes of population change in North American insectivorous songbirds
Although the North American Breeding Bird Survey (BBS) is a principal source of information regarding populations of most North American bird species, many features of the survey complicate analysis of population change. Correlation studies based on BBS data cannot be used to unambiguously define cause and effect relationships. Recently, Bohning-Gaese et al. (1993) presented an analysis...
Authors
J.R. Sauer, G.W. Pendleton, B.G. Peterjohn