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Page 4965, results 124101 - 124125

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Influence of a local source of DDT pollution on statewide DDT residues in waterfowl wings, northern Alabama, 1978-79
W. James Fleming, T. J. O'Shea
1980, Pesticides Monitoring Journal (14) 86-89
Heavy DDT contamination resulting from a former DDT manufacturing plant in northern Alabama has influenced statewide averages of DDT, DDE, and TDE residues in duck wings tested in the National Pesticide Monitoring Program. In states where contaminant levels in duck wings are high, residue analyses of wings categorized by finer...
Organochlorine and heavy metal residues in black duck eggs from the Atlantic Flyway, 1978
S. D. Haseltine, B.M. Mulhern, C. Stafford
1980, Pesticides Monitoring Journal (14) 53-57
Black duck (Anas rubripes) eggs were collected during 1978 in the Atlantic Flyway. One egg from each of 49 clutches was analyzed for organochlorine compounds and mercury. DDE was detected in 39 eggs, ranging from 0.09 ppm to 3.4 ppm, wet weight. DDE residues were highest in eggs from Delaware,...
Hydrologic and land-cover features of the Loxahatchee River Basin, Florida
Benjamin F. McPherson, Maryann Sabanskas
1980, Water-Resources Investigations Report 80-1109
This map report represents the first published product of the Loxahatchee River estuary assessment, and primarily fulfills the first objective as outlined in the report. It presents an overview of the major physical features of the basin and presents selected information on the U.S. Geological Survey assessment. The report includes...
Survey of resampling techniques using MSS and synthetic imagery
Brian P. Bauer
1980, Report
The objective of this survey is to investigate the methods of interpolation and deconvolution for image restoration The methods evaluated are nearest neighbor, bilinear interpolation, cubic convolution, and two-dimensional deconvolution. The effects of these restoration methods are demonstrated using Landsat multispectral scanner (MSS) data and synthetic imagery. The effect of these...
Selected reading in agricultural applications of small-format aerial photography
1980, Report
This collection of material has been assembled in response to a growing.interest in the use of low-cost, small-format aerial photography in the management of agricultural resources. Together, these articles serve to document the prevailing level of interest in the subject and provide an insight as to what can reasonably be...
Coastal and Marine Bird Data Base
S.H. Anderson, P.H. Geissler, D.K. Dawson
1980, FWS/OBS 80/39
Summary: This report discusses the development of a coastal and marine bird data base at the Migratory Bird and Habitat Research Laboratory. The system is compared with other data bases, and suggestions for future development, such as possible adaptations for other taxonomic groups, are included....
Establishment, survival, and growth of selected browse species in a ponderosa pine forest
D.R. Dietz, D.W. Uresk, H.E. Messner, L. C. McEwen
1980, Research Paper RM-219
Information is presented on establishment, survival, and growth of seven selected browse species in a ponderosa pine forest over a 10-year period. Methods of establishment included hand seeding and planting bare-root and containerized stock. Success of different methods differed with shrub species....
Techniques and results of nongame bird monitoring in North America
C.S. Robbins, D. Bystrak, P.H. Geissler
H. Oelke, editor(s)
1980, Book chapter, Bird Census Work and Nature Conservation. Proceedings VI of the International Conference on Bird Census Work.
Long-term bird population trends based on accumulated ratios (proportional change) sometimes give a very misleading view of population change. Alternate methods of representing population change, based on the weighted means for the individual years, avoid the dangers of using ratios. Some advantages and disadvantages of various weighting techniques...
Whooping crane recovery plan
David L. Olsen, David R. Blankenship, Harold D. Irby, Ray C. Erickson, Ross Lock, Roderick C. Drewien, Lawrence S. Smith
Scott R. Derrickson, editor(s)
1980, Book
This plan has been prepared under the authority of the Endangered Species Act of 1973 and subsequent amendments. The Plan is designed to provide decision makers with an orderly set of events which, if carried out to a successful completion, will result in changing the status of the species from...
Digital terrain tapes: user guide
Water Resources Division, U.S. Geological Survey
1980, Report
DMATC's digital terrain tapes are a by-product of the agency's efforts to streamline the production of raised-relief maps. In the early 1960's DMATC developed the Digital Graphics Recorder (DGR) system that introduced new digitizing techniques and processing methods into the field of three-dimensional mapping. The DGR system consisted of an...
Paleolimnology of two lakes in the Klutlan Glacier region, Yukon Territory, Canada
J.P. Bradbury, M.C. Whiteside
1980, Quaternary Research (14) 149-168
Lakes developed on progressively younger end moraines of the Klutlan Glacier were initially assumed to have originated shortly after moraine emplacement and to have persisted to the present. Limnological differences between lakes on old vs young moraines were thought to result from limnological maturation within the lakes and ponds themselves...
The origin and distribution of subbottom sediments in southern Lake Champlain
R. P. Freeman-Lynde, D. R. Hutchinson, D. W. Folger, B.H. Wiley, M.J. Hewett
1980, Quaternary Research (14) 224-239
Three units, correlatable with recent Lake Champlain, late-glacial marine Champlain Sea, and proglacial Lake Vermont sediments, have been identified from about 200 km of high-resolution seismic reflection profiles and eight piston cores collected in southern Lake Champlain. Lake Vermont deposits are nonfossiliferous and range from thin to absent nearshore and...
Biostratigraphic correlation of Pleistocene marine deposits and sea levels, Atlantic coastal plain of the southeastern United States
T. M. Cronin
1980, Quaternary Research (13) 213-229
Marine ostracodes from 50 localities were studied to determine the age and elevation of Pleistocene sea levels in the Atlantic coastal plain from Maryland to northern Florida. Using ostracode taxon and concurrent ranges, published planktic biostratigraphic, paleomagnetic, and radiometric data, ostracode assemblage zones representing early (1.8-1.0 my), middle (0.7-0.4 my),...
Remote sensing data of SP Mountain and SP Lava flow in north-central Arizona
G. G. Schaber, C. Elachi, T.G. Farr
1980, Remote Sensing of Environment (9) 149-170
Multifrequency airborne radar image data of SP Mountain [Official name of feature (U.S. Geological Survey, 1970)] and SP flow (and vicinity) in north-central Arizona were obtained in diverse viewing directions and direct and cross-polarization, then compared with surface and aerial photography, LANDSAT multispectral scanner data, airborne thermal infrared imagery, surface...
Local magnetic field measurements and fault creep observations on the San Andreas fault
M.J.S. Johnston, B.E. Smith, Robert O. Burford
1980, Tectonophysics (64) 47-57
Simultaneous creep and magnetic field records have been obtained for more than 60 episodic creep events since early 1974, no clear magnetic transients or offsets, as suggested by Breiner and Kovach (1968), are observed at or up to several days before the occurrence times of these events. Although some patterns...
Folding and faulting of strain-hardening sedimentary rocks
Arvid M. Johnson
1980, Tectonophysics (62) 251-278
The question of whether single- or multi-layers of sedimentary rocks will fault or fold when subjected to layer-parallel shortening is investigated by means of the theory of elastic-plastic, strain-hardening materials, which should closely describe the properties of sedimentary rocks at high levels in the Earth's crust. The most attractive feature...