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Page 5518, results 137926 - 137950

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Oxygen isotopic determinations of sequentially erupted plagioclases in the 1974 magma of Fuego Volcano, Guatemala
W.I. Rose Jr., I. Friedman, L. G. Woodruff
1980, Bulletin Volcanologique (43) 191-194
Plagioclases in the 1974 high-Al basalt from Fuego Volcano have ??O18 values of +6.0 to +8.5 per mil. Meteoric water cannot have played a significant role in Fuego's magma. Large, weakly zone clear phenocrysts had ??O18 values in the accepted mantle range, while patchyzoned and oscillatory-zoned plagioclases inferred to have...
The asiatic clam, Corbicula fluminea (Müller), in the tidal Potomac River, Maryland
Paul V. Dresler, Robert L. Cory
1980, Estuaries (3) 150-151
The Asiatic clam,Corbicula fluminea (Müller), has extended its range to include the tidal fresh-water portion of the Potomac River, Maryland. Though patchily distributed, the clams have attained densities of 665 m−2. Size-class distributions indicate that the clams first appeared in 1975. About 90% of the population belong to year-class I...
Storm runoff as related to urbanization in the Portland, Oregon-Vancouver, Washington Area
Antonius Laenen
1980, Water-Resources Investigations Report 80-689
A series of equations was developed to provide a better method of determining flood frequencies in the Portland-Vancouver urban area than is now available. The resulting regression equations can be used to compute peak discharge and storm runoff with a standard error of estimate of approximately 30 percent. Basins used...
[Book review] Endangered Birds: Management techniques for preserving threatened species
R.C. Erickson
1980, The Auk (97) 209-209
This volume contains the proceedings of a symposium held at the University of Wisconsin-Madison, during 17-20 August 1977. In the words of the book's editor, Stanley Temple, the symposium "offered a unique opportunity for leading scientists from around the world to meet and share their experiences with endangered birds." That...
Estimating the size and trend of the California condor population, 1965-1978
S.R. Wilbur
1980, California Fish and Game (66) 40-48
During 1965-1978, three principal methods were used to measure the size and trend of the California Condor (Gymnogyps californianus) population. An October survey conducted by as many as 136 observers had limited value because daily activity patterns of condors were unpredictable and because analysis of results could not be...
Lead residues in sora rails from Maryland
Rey C. Stendell, Joseph W. Artmann, Elwood Martin
1980, Journal of Wildlife Management (44) 525-527
During September and October, mi- grating sora rails (Porzana carolina) use tidal marshes of the Patuxent River in Maryland, where they have been hunted for many years. Spent shot accumulates in the marsh during the rail hunting sea- son, and some shot is ingested by the birds. Twelve percent...
Decline and disappearance of the Dusky Seaside Sparrow from Merritt Island, Florida
P.W. Sykes Jr.
1980, American Birds (34) 728-737
The Dusky Seaside Sparrow, Ammospiza maritima nigrescens, was first discovered by Charles J. Maynard near Salt Lake on the St. Johns River west of Titusville, Brevard County, Florida, on March 17, 1872. Later that spring, Maynard found the sparrow to be quite common in the salt marsh on the Canaveral...