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Publication Extents

Not all publications have extents, not all extents are completely accurate
Distribution of elements in biotite-hornblende pairs and in an orthopyroxene-clinopyroxene pair from zoned plutons, northern Sierra Nevada, California
A. Hietanen
1971, Contributions to Mineralogy and Petrology (30) 161-176
Distribution of major and minor elements has been determined for five hornblende-biotite pairs from hornblende-biotite quartz diorite and monzotonalite and for a clinopyroxene-orthopyroxene pair from pyroxene diorite collected from the border zones and centers of zoned plutons in the northern Sierra Nevada, California. The distribution coefficients K d [Mg/Fe] for biotite/hornblende are of...
Reduction of lithologic-log data to numbers for use in the digital computer
C.O. Morgan, J.M. McNellis
1971, Journal of the International Association for Mathematical Geology (3) 79-86
The development of a standardized system for conveniently coding lithologic-log data for use in the digital computer has long been needed. The technique suggested involves a reduction of the original written alphanumeric log to a numeric log by use of computer programs. This numeric log can...
Primary distribution of silver and copper in native gold from six deposits in the Western United States
G. A. Desborough, Robert H. Heidel, W. H. Raymond, J. Tripp
1971, Mineralium Deposita (6) 321-334
Electron-microprobe analyses and mineragraphic studies of native gold demonstrate considerable variations in the primary intergrain and intragrain distribution of silver. The gold grains have from 1–55 weight percent silver; copper is present in grains from only one locality and ranges from 0.1–0.6 weight percent. Some gold...
Nesting by a yearling Canada goose
L. C. Hall, Frank B. McGilvrey
1971, Journal of Wildlife Management (35) 835-836
A free-flying Canada goose (Branta canadensis interior), known to be just under a year old, laid a clutch of four eggs at the Patuxent Wildlife Research Center. At least half of the 2-year-old females nest at Patuxent, and almost all of the 3-year-olds nest. As far as we know, this...
Transcontinental mourning dove recovery
Brian Sharp
1971, The Auk (88) 924-924
A Mourning Dove (Zenaida macroura) banded in New York has been reported shot in California. On 25 August 1969, near Palmyra (43°00' N, 77°10' W), New York Department of Environmental Conservation personnel placed U. S. Fish & Wildlife Service band 883-97279 on the leg of a hatching-year Mourning Dove of...
DDE thins eggshells and lowers reproductive success of captive black ducks
J. R. Longcore, F. B. Samson, T.W. Whittendale Jr.
1971, Bulletin of Environmental Contamination and Toxicology (6) 485-490
Eggs of captive black ducks fed diets containing DDE at 10 and 30 ppm (dry weight) experienced significant shell thinning and an increase in shell cracking when compared to eggs of untreated black ducks. Eggshells from dosed ducks were: 18-24 percent thinner at the equator than shells from undosed...
The occurrence and significance of polychlorinated biphenyls in the environment
E. H. Dustman, L.F. Stickel, L. J. Blus, W. L. Reichel, Stanley N. Wiemeyer
1971, Transactions of the North American Wildlife and Natural Resources Conference (36) 118-131
SUMMARY: Polychlorinated biphenyls constitute a group of chlorine-bearing compounds of industrial origin that have permeated the natural environment throughout the world. Their chemical structure resembles that of some of the organochlorine pesticides. They are troublesome interferences in gas chromatographic analysis of these...
Population ecology of the great blue heron with special reference to western Oregon
Charles J. Henny, M.R. Bethers
1971, Canadian Field-Naturalist (85) 205-209
Great Blue Heron (Ardea herodias) begin nesting in western Oregon about 1 month earlier than reported from the Philadelphia region and about 2 months earlier than reported from Southern Alberta. The number of young fledged per nesting pair in Oregon was 2.04 in 1970 which was nearly identical to the...
Some patterns of woodcock activities on Maine summer fields
W.B. Krohn
1971, The Wilson Bulletin (83) 396-407
Certain aspects of woodcock usage of summer fields were studied in Maine. Findings were as follows: ....1. On two study fields in 1968, numbers of woodcock first began spending nights in the fields during the second week of June. During 1968 and 1969, the number of birds flushed from the...
Monitoring pesticides in wildlife
E. H. Dustman, W.E. Martin, R.G. Heath, W. L. Reichel
1971, Pesticides Monitoring Journal (5) 50-52
Early in the development of the wildlife monitoring program, certain criteria were recognized as being important in the selection of species of wild animals suitable for pesticide monitoring purposes. Ideally, the forms selected should be geographically well distributed, and they should be reasonably abundant and readily available for sampling....
Blood parasites of wood ducks
C. M. Herman, J. O. Knisley Jr., G. D. Knipling
1971, Journal of Wildlife Management (35) 119-122
Examination of blood films from wood ducks (Aix sponsa) from several northeastern states revealed Haemoproteus, Leucocytozoon, Plasmodium and a typanosome. Haemoproteus occurred in all areas sampled and birds of the year from Massachusetts demonstrated the highest incidence during the last 2 weeks in August. Leucocytozoon was most prevalent in more...
Synecology of a Virginia salt marsh
J.A. Kerwin, R. Pedigo
1971, Chesapeake Science (12) 125-130
In the spring and summer of 1964 a salt marsh in Gloucester County, Virginia, was analyzed using random quadrat sampling. Synthetic treatments were employed to evaluate data and were correlated with observed differences in elevation. Floristic data indicate the Virginia salt marshes show closer similarity to marshes north of Chesapeake...