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Publication Extents

Not all publications have extents, not all extents are completely accurate
Comparative Dietary Toxicities of Pesticides to Birds
R.G. Heath, J. W. Spann, E. F. Hill, J.F. Kreitzer
1972, Special Scientific Report - Wildlife 152
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...
An Analysis of the Population Dynamics of Selected Avian Species--With Special References to Changes During the Modern Pesticide Era
Charles J. Henny
1972, Wildlife Research Report No. 1
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...
Food resources of the California condor
S.R. Wilbur
1972, Report
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...
Biological data on PCBs in animals other than man
L.F. Stickel
1972, Book chapter, Polychlorinated Biphenyls and the Environment
SUMMARY: Polychlorinated biphenyls have become ubiquitous in the world ecosystem in quantities similar to those of DDE. Experimental studies have shown that PCBs have a toxicity to mallards, pheasants, bobwhite quail, coturnix quail, red-winged blackbirds, starlings, cowbirds, and grackles that is of the same...
Los plaguicidas y la contaminacion del medio ambiente Venezolano
L.F. Stickel, W. H. Stickel
1972, Book chapter, Contribucion al Estudio Especial: La Agricultura y la Contaminacion del Medio Abiente de Venezuela.
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...
Hydraulic testing of hole UA-1-HTH-1, Amchitka Island, Alaska
Wilbur C. Ballance, G.A. Dinwiddie
1972, Report
Total depth of the hole was 1,054 meters (3,458 feet) but, because of borehole erosion and bridging, only about 198 meters (650 feet) of the hole was·hydraulically tested with straddle packers. Some information was obtained on the lower part of the hole by use of the pressure recorders which are...