Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 41763
Problems in flyway-wide appraisal of wood duck habitat
No abstract available.
Authors
A.S. Hawkins, C.E. Addy
Birds of North America - A Guide to Field Identification
No abstract available.
Authors
C.S. Robbins, B. Bruun, H.S. Zim
Waste injection into a deep limestone in northwestern Florida
During a three-month trial period, 70 million gallons of industrial wastes were successfully injected at moderate pressures into a deep limestone in the westernmost part of Florida. The movement of these wastes is expected to be predominantly southward toward the natural discharge area which is presumed to be far out in the Gulf of Mexico. The limestone lies between two thick beds of clay (aquiclu
Authors
J.T. Barraclough
Uptake of 2,4-dichlorophenoxyacetic acid by Pseudomonas fluorescens
Factors influencing the uptake of the sodium salt of 2,4-dichlorophenoxyacetic acid (2,4-D), under conditions in which no net metabolism occurred, were investigated in an effort to determine both the significance of “non-metabolic” uptake as a potential agent in reducing pesticide levels and the mechanisms involved. Uptake of 2,4-D was affected by pH, temperature, and the presence of other organic
Authors
Gary Wedemeyer
Toxicities of several pesticides to two species of Cladocerans
Laboratory bioassays were conducted with some chlorinated hydrocarbon insecticides, organophosphate insecticides, other insecticides and acaricides, and with herbicides to determine their relative toxicities and immobilization values for two species of daphnids, Daphnia pulex and Simocephalus serrulatus. Both species are satisfactory bioassay organisms for the determination of a wide variety of pe
Authors
Herman O. Sanders, Oliver B. Cope
Some effects of Heptachlor on bluegills (Lepomis macrochirus)
In complementary studies of the chronic effects of heptachlor on bluegills, four similar earthen ponds were treated once with different concentrations of heptachlor, and the fish in six plastic pools were routinely fed different levels of heptachlor. A fifth pond and two plastic pools were used as controls. Higher dosages resulted in higher concentrations of heptachlor residues, more pronounced ti
Authors
Austin K. Andrews, Bruce E. Stebbings, Charles C. Van Valin
Persistence of 2,6-Dichlorobenzonitrile in aquatic environments
In two experiments 2,6-dichlorobenzonitrile was added to aquatic systems, and the residue levels were followed for about 6 months. A granular formulation applied to a farm pond at 0.6 p.p.m. produced highest residues in water and fish about 2 weeks following treatment whereas vegetation and soil samples had the highest levels within 1 or 2 days. Residues were still measurable after 188 days. In po
Authors
C.C. Van Valin
Treatment of East Bay, Alger County, Michigan, with toxaphene for control of sea lampreys
An experiment was conducted to determine whether toxaphene can be used to eradicate lake-dwelling sea lampreys and to determine its effect on fish populations. In East Bay, a 78-acre lake on the Sucker River, Alger County, Mich., an estimated concentration of 100 parts per billion was maintained for 14 days. The sea lamprey larvae were more resistant to toxaphene than were the fish, but a complete
Authors
William E. Gaylord, Bernard R. Smith
Evaluation of p,p'-DDT as a reference toxicant in bioassays
p,p'-DDT was tested as a reference standard toxicant against 19 species of freshwater fish, including 39 lots from 10 sources. In particular, the rapidity, nonselectivity, and consistency of its toxicity to fish were evaluated in 96-hour static bioassays. The chemical was rapidly and consistently toxic to lake trout, carp, green sunfish, bluegill, and yellow perch. It lacked either rapid or consis
Authors
Leif L. Marking