C.S. Robbins
1978, Maryland Birdlife (34) 64
Search Results
165485 results.
Alternate formats: RIS file of the first 3000 search results | Download all results as CSV | TSV | Excel | RSS feed based on this search | JSON version of this page of results
Page 5175, results 129351 - 129375
Publication Extents
Not all publications have extents, not all extents are completely accurateDonald H. White, D. James
1978, The Wilson Bulletin (90) 99-111
A comparative study of the environmental relationships among 14 species of wintering waterfowl was conducted at the Welder Wildlife Foundation, San Patricia County, near Sinton, Texas during the fall and early winter of 1973. Measurements of 20 environmental factors (social, vegetational, physical, and chemical) were subjected to multivariate statistical methods...
Charles van Riper III, J. Michael Scott, D.M. Woodside
1978, The Auk (95) 518-527
Censuses of the known geographical range of the rare and endangered Palila were conducted in January (nonbreeding season) and September (breeding season) 1975. The habitat (mamane and naio forest of Mauna Kea, Hawaii) was divided into five major areas, with each analyzed for vegetational composition, phenology of the predominant tree...
Donald H. White, M. T. Finley
1978, Environmental Research (17) 53-59
Adult mallard ducks fed 0, 2, 20, or 200 ppm of cadmium chloride in the diet were sacrificed at 30-day intervals and tissues were analyzed for cadmium. No birds died during the study and body weights did not change. The liver and kidney accumulated the highest levels of cadmium. Tissue...
S.R. Wilbur
1978, The Wilson Bulletin (90) 642-643
No abstract available....
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...
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...
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...
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...
W. G. Eden, L.F. Stickel
1978, Report
No abstract available....
R.A. Coon
1978, Newsletter for the Accelerated Research Program for migratory shore and upland game birds No. 3.
W.E. Banko
1978, Cooperative National Park Resources Studies Unit, Technical Report 21.
F. L. Ramsey, J. M. Scott
1978, Oregon State University Department of Statistics, Technical Report No. 60
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...
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....
D. H. Ellis, J.G. Goodwin Jr., J.R. Hunt
John L. Fletcher, R.G. Busnel, editor(s)
1978, Book chapter, Effects of Noise on Wildlife
Hundreds of thousands of miles of transmission lines have been introduced into our natural environment. These lines and their corridors can be damaging or beneficial to wildlife communities depending on how they are designed, where they are placed, and when they are constructed and maintained. With the current...
R.S. Hammerschlag, J.C. Patterson
1978, Book chapter, Manual of site management
S.H. Anderson
1978, Book chapter, Proceedings, meeting on nongame/urban wildlife/endangered species program concerns.
I.B. Tarshis
James W. Avault, editor(s)
1978, Book chapter, Proceedings of the Ninth Annual Meeting of the World Mariculture Society
One commercial and 4 laboratory prepared extruded, water-stable diets were fed 3 times a week in 1-g portions to juvenile male and female White River crawfish, Procambarus acutus acutus (Girard), for 10 weeks. The. binding material in the laboratory preparation was alginate (Kelgin), whereas that in the commercial preparation...
P.W. Sykes Jr.
H.W. Kale II, editor(s)
1978, Book chapter, Rare and Endangered Biota of Florida, Volume Two: Birds
Thomas J. Sexton, G.F. Gee
P.F. Watson, editor(s)
1978, Book chapter, Artificial Breeding of Non-Domestic Animals
SYNOPSIS: Recent findings on the cryogenic preservation of semen from the crane, Grus canadensis pratensis and the domestic fowl, Gallus domesticus, are compared. Highest levels of post-thaw motility for crane semen (55%) were obtained when semen was diluted 1:1 with the Beltsville Poultry Semen Extender (BPSE) and held for 30...
G.F. Gee, S.A. Temple
P.F. Watson, editor(s)
1978, Book chapter, Artificial Breeding of Non-Domestic Animals.
Captive breeding of non-domestic birds has increased dramatically in this century, and production of young often exceeds that of the same number of birds in their native habitat. However, when infertility is a problem, artificial insemination can be a useful method to improve production. Artificial insemination programs with non-domestic birds...
S.R. Wilbur
Philip P. Schaeffer, Sharyn Marie Ehlers, editor(s)
1978, Book chapter, Proceedings of the National Audubon Society's Symposium on the Current Status of Peregrine Falcon Populations in North America
Philip Aruscavage, Esma Campbell
1978, Journal of Research of the U.S. Geological Survey (6) 697-699
Tungsten is determined in 11 USGS standard rocks by a spectrophotometric procedure that measures the absorbance of the tungsten-dithiol complex. The results are compared with those obtained by other methods. After the samples are dissolved in HClO4 and HF, the tungsten-dithiol complex is extracted into isoamyl acetate and then back-extracted...
R. E. Stauffer, J. M. Thompson
1978, Journal of Research of the U.S. Geological Survey (6) 755-763
Ninety-seven hot-spring and geyser samples (field acidified to pH<1.4 with HCl or HNO3) from Yellowstone National Park, Wyo., were analyzed for PO4-P using reduced molybdenum-blue and the selective arsenate reducing agent, metabisulfite-thiosulfate. The PO4-P concentrations ranged from below detection limit (~1-73 micrograms per liter). Twenty-five springs had PO4-P concentrations exceeding 6.8 μg/L;...