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 bibliography of Oregon ornithology (1935-1970) with a cross-referenced list of the birds of Oregon A bibliography of Oregon ornithology (1935-1970) with a cross-referenced list of the birds of Oregon
No abstract available.
Authors
J. M. Scott, T.W. Haislip, M. Thompson
Logarithmic relationship of DDE residues to eggshell thinning Logarithmic relationship of DDE residues to eggshell thinning
A concentration-effect relationship seems to exist between DDE in eggs and shell thinning. It seems to follow a mathematically similar pattern in different species though it seems to operate at different levels.
Authors
L. J. Blus, C.D. Gish, A. A. Belisle, R. M. Prouty
Comparative Dietary Toxicities of Pesticides to Birds Comparative Dietary Toxicities of Pesticides to Birds
This report presents measurements of the lethal dietary toxicity of 89 pesticidal chemicals to young bowhites, Japanese quail, ring-necked pheasants, and mallards. Toxicity is expressed as the median lethal concentration (LC 50) of active chemical in a 5-day ad libitum diet. LC 50's and associated statistics are derived by methods of probit analysis. Endrin consistently was the most...
Authors
R.G. Heath, J. W. Spann, E. F. Hill, J.F. Kreitzer
Black-footed ferret-Prairie dog interrelationships Black-footed ferret-Prairie dog interrelationships
No abstract available.
Authors
R. L. Linder, R.B. Dahlgren, C. N. Hillman
Effects of DDT on steroid metabolism and energetics in bobwhite quail (Colinus virginianus) Effects of DDT on steroid metabolism and energetics in bobwhite quail (Colinus virginianus)
No abstract available.
Authors
S. Lustick, T. Voss, T.J. Peterle
Los plaguicidas y la contaminacion del medio ambiente Venezolano Los plaguicidas y la contaminacion del medio ambiente Venezolano
RESUMEN DE RECOMENDACIONES Recomendaciones para el Programa de Investigacion: 1. Establecer un sistema de muestreo biologico para detectar los niveles tendencias de los productos quimicos toxicos en un peque?o numero de si tios representativos. 2. Mantener continua vigilancia de la contaminacion ambiental, mediante la seleccion acertadamente dirigida de las zonas afectadas y de las
Authors
L.F. Stickel, W. H. Stickel
Population ecology of the mallard: I. A review of previous studies and the distribution and migration from breeding areas Population ecology of the mallard: I. A review of previous studies and the distribution and migration from breeding areas
This report, the first of a series of reports on a comprehensive analysis of population data on the? millIard at? the continental level, provides background information including a review of the history of waterfowl management and a resume of previous studies of the mallard. The breeding range of the mallard was subdivided into 16 major and 44 minor reference areas. Each area is...
Authors
David R. Anderson, Charles J. Henny
The season--July, August, September, 1972 The season--July, August, September, 1972
No abstract available.
Authors
C.S. Robbins
An Analysis of the Population Dynamics of Selected Avian Species--With Special References to Changes During the Modern Pesticide Era An Analysis of the Population Dynamics of Selected Avian Species--With Special References to Changes During the Modern Pesticide Era
The impact of pesticides on the mortality rates and recruitment rates of nongame birds during the last 25 years was evaluated by studying the population dynamics of 16 species. A mathematical model showing the relations between population parameters that yielded stable populations was developed. The information needed for the model included (1) mortality rate schedule (obtained from...
Authors
Charles J. Henny
Food resources of the California condor Food resources of the California condor
Conclusions and Recommendations: Although much of the above information is imprecise and inconclusive, it is evident that the condors foraging habitat is diminishing. Food supply probably is still adequate for free-ranging nonbreeding birds, but could become limited if current land use trends continue. Congregating condors on fewer and fewer acres could be detrimental in other ways. It...
Authors
S.R. Wilbur
Role of banding data in migratory bird population studies Role of banding data in migratory bird population studies
No abstract available.
Authors
A. D. Geis