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184617 results.

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Page 5752, results 143776 - 143800

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Editorial
C.S. Robbins
1978, Maryland Birdlife (34) 61
Influence of laying on lead accumulation in bone of mallard ducks
M. T. Finley, M. P. Dieter
1978, Journal of Toxicology and Environmental Health (4) 123-129
Paired mallard ducks (Anas platyrhynchos) were given No. 4 lead shot, and bone lead concentrations were compared in drakes and in laying and nonlaying hens. Lead accumulation was significantly greater in bones with a high medullary content (femur and sternum) compared with bones with a lower medullary content (ulna-radius or...
Histopathologic effects of dietary cadmium on kidneys and testes of mallard ducks
Donald H. White, M. T. Finley, J. F. Ferrell
1978, Journal of Toxicology and Environmental Health (4) 551-558
Mallard ducks fed 2, 20, or 200 ppm cadmium chloride were sacrificed at 30, 60, and 90 d. No mortality occurred during the study and body weights remained unchanged. Kidney weights of the 200-ppm group were significantly greater after 60 and 90 d than those of controls; also, testis weights...
Effects of dietary vanadium in mallard ducks
Donald H. White, M. P. Dieter
1978, Journal of Toxicology and Environmental Health (4) 43-50
Adult mallard ducks fed 0, 1, 10, or 100 ppm vanadyl sulfate in the diet were sacrificed after 12 wk on treatment; tissues were analyzed for vanadium. No birds died during the study and body weights did not change. Vanadium accumulated to higher concentrations in the bone and liver than...
Rehabilitation of birds oiled on two mid-Atlantic estuaries
Matthew C. Perry, Fred Ferrigno, Fairfax H. Settle
1978, Proceedings of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies (32) 318-325
An estimated 52,500 birds died as a result of 7 major oil spills on 2 mid-Atlantic estuaries between 1973-78. Ruddy ducks (Oxyura jamaicensis) constituted 98% of 12,500 birds known to have died from 5 spills on the Delaware River. Seventy-six percent of 40,000 dead birds from 2 Chesapeake Bay spills...
A selected bibliography: Remote sensing applications for tropical and subtropical vegetation analysis
Lawrence R. Pettinger
1978, Report
This bibliography contains 425 citations of selected technical reports, journal articles, and other publications covering the general subject of tropical and subtropical vegetation analysis. Functionally related topics that include vegetation analysis are included for completeness, and citations have been organized under the following subheadings for ease of reference: remote sensing...
The California condor, 1966-1976: A Look at its Past and Future
S.R. Wilbur
1978, North American Fauna No. 72
The California condor (Gymnogyps californianus) was studied on about 900 field days between 1966 and 1976. In addition, some 1,000 items of literature, specimen records from 56 museums, and 3,500 reports of condor sitings by cooperators were analyzed. Distribution does not appear to have changed significantly since the...
Status of the peregrine falcon in the Rocky Mountains and the southwestern United States, Baja California, and Mexico (south of Texas)
Ron Porter, G.R. Craig, D. H. Ellis, J.H. Enderson, W.G. Hunt
Philip P. Schaeffer, Sharyn M. Ehlers, editor(s)
1978, Book chapter, Proceedings of the National Audubon Society Symposium on the Current Status of Peregrine Falcon Populations in North America
About 31 pairs of peregrines still nest north of Mexico, from Idaho and Montana south through West Texas, New Mexico and Arizona. At least thirty-six additional pairs nest in Mexico. Although the nesting sites are occupied, the tissues of the peregrine?s prey species still contain high concentrations of pesticides....