Classification of the hydrologic settings of lakes in the north central United States
Thomas C. Winter
1977, Water Resources Research (13) 753-767
The hydrologic settings of 150 lakes in the north central United States were investigated by principal component analysis as a first attempt to develop a general classification of the hydrologic settings of lakes. Precipitation-evaporation balance and the water quality variables have high loadings on the first principal component. Highest loadings...
Upland nesting of American bitterns, marsh hawks, and short-eared owls
Harold F. Duebbert, J. T. Lokemoen
1977, Prairie Naturalist (9) 33-40
No abstract available....
Paleomagnetic poles and polarity zonation from Cambrian and Devonian strata of Arizona
D. P. Elston, S.L. Bressler
1977, Earth and Planetary Science Letters (36) 423-433
Basal Paleozoic Tapeats Sandstone (Early and Middle Cambrian) in northern and central Arizona exhibits mixed polarity and a low-latitude paleomagnetic pole. Carbonates of Middle and early Late Cambrian age, and directly superposed carbonate and carbonate-cemented strata of latest Middle(?) and early...
Orientale and Caloris
J.F. McCauley
1977, Physics of the Earth and Planetary Interiors (15) 220-250
Applications of experimental explosion-crater data to Orientale and recent geologic mapping of the basin have produced a new stratigraphy and genetic model for Orientale that are also applicable to Caloris. The inner-basin scarp of Orientale is thought to be a bench separating the upper parts of the basin from its...
Square wave voltammetry at the dropping mercury electrode: Theory
J. H. Christie, J.A. Turner, R. A. Osteryoung
1977, Analytical Chemistry (49) 1899-1903
The theoretical aspects of square wave voltammetry at the dropping mercury electrode are presented. The technique involves scanning the entire potential range of interest on a single drop of a DME. Asymmetries in the waveform as well as variations in current measurement parameters are discussed. Indications are that previous uses...
Effect on tricaine methanesulfonate (MS-222) on hematocrit values in rainbow trout (Salmo gairdneri)
G. L. Reinitz, J. Rix
1977, Comparative Biochemistry and Physiology, Part C: Comparative Pharmacology (56) 115-116
1. Anesthesia of rainbow trout (Salmo gairdneri) with 70 ppm tricaine methanesulfonate (MS-222) for 3-9 min resulted in a linear increase in hematocrit.2. Handling of unanesthetized trout caused a higher and more variable hematocrit reading than did exposure to MS-222 for up to 3 min.3. The range and standard error...
Energy allocation patterns of a sprouting and nonsprouting species of Arctostaphylos in the California chaparral
Jon E. Keeley, Sterling C. Keeley
1977, American Midland Naturalist (98) 1-10
The r- and K-selection theory was used to generate testable hypotheses about patterns of energy allocation in two chaparral shrubs of different reproductive strategies. Terminal-branchlet vegetative and reproductive biomass of the nonsprouting Arctostaphylos glauca and the sprouting A. glandulosa were sampled in a 23-year-old and a 90-year-old stand of chaparral...
The display flight of The North American Ruddy Duck
M. R. Miller, R.M. McLandress, B.J. Gray
1977, The Auk (94) 140-142
Sexual behavior of the North American Ruddy Duck (Oxyura jamaicensis), as summarized by Johnsgard (1965: 323-327), includes a display variously referred to as the ringing rush (Johnsgard 1965: 325; 1967), ring rush (Johnsgard 1966), and/or display flight (Johnsgard 1966, 1967), which males perform as a short rush across the water...
New fishery research center
R. L. Herman
1977, Fisheries (2) 22-23
No abstract available....
Water dowsing
Water Resources Division, U.S. Geological Survey
1977, Report
No abstract available. ...
Earthquakes, October-November 1976
W. J. Person
1977, Earthquake Information Bulletin (USGS) (9) 32-36
October brought two damaging earthquakes to Ecuador and New Guinea. The Ecuador earthquake, although only magnitude 5.5, caused casualties and damage. The new Guinea earthquake, a major quake, caused a loss of life and damage. Two major earthquakes were experienced during November, in eastern Turkey on November 24 and in...
When an earthquake occurs....
W. J. Person
1977, Earthquake Information Bulletin (USGS) (9) 17-19
When an earthquake occurs, we must be ready at the National Earthquake Information Service (NEIS) in Golden, Colo., to provide information as to its magnitude and epicenter as quickly as possible.This information is given to agencies concerned with disaster relief and to the press. A typical scenario for our operations...
Landslides
T. H. Nilsen
1977, Earthquake Information Bulletin (USGS) (9) 27-33
Landslides are frequent in areas where there is high seismicity and steep slopes. Landslides associated with earthquakes may cause as much damage as the initial ground shaking. They may also occur long after the earthquake. Some of the major earthquakes that have occurred during the past 15 years demonstrate the hazards...
Earthquakes; May-June 1977
W. J. Person
1977, Earthquake Information Bulletin (USGS) (9) 26-27
The months of May and June were somewhat quiet seismically speaking. There was only on significant earthquake, a magnitude 7.2 on June 22 in teh Tonga Islands. In teh United States, the two largest earthquakes occurred in California and on Hawaii. ...
Earthquakes; January-February 1977
W. J. Person
1977, Earthquake Information Bulletin (USGS) (9) 46-47
There were no major earthquakes (7.0-7.9) during the first 2 months of the year, and no fatalities were reported. Three strong earthquakes occurred- New Guinea, Tadzhik S.S.R, and the Aleutian Islands. The Tadzhik earthquake on January 31 caused considerable damage and possible injuries. The United States experienced a number of...
Earthquakes, December 1976
W. J. Person
1977, Earthquake Information Bulletin (USGS) (9) 28-29
The month of December was seismically quiet compared to the previous months of the year. There were no major earthquakes during the month and only one that caused fatalities. On December 8, the Republic of South Africa was struck by an earthquake that caused deaths and damage. The United States...
Earthquakes: August-September 1976
W. J. Person
1977, Earthquake Information Bulletin (USGS) (9) 32-33
Destructive earthquakes continued to strike in many parts of the world during this period. The sparsely populated area of the New Hebrides Islands in the southwest Pacific was struck by a major earthquake (one with a magnitude between 7.0 and 7.9). A great earthquake (magnitude 8.0 or above) struck just...
Remote sensing for lineaments in the Mississippi Embayment
D. O'Leary
1977, Earthquake Information Bulletin (USGS) (9) 14-18
A recurrence of an 1811-12 type earthquake in the Mississippi Valley would pose severe problems to construction in the valley. As William Stauder has stated in the preceding article, a particular difficulty in understanding the seismicity of this area is that, whereas various surface manifestations of the 1811-12 earthquakes have...
Evolution of Seismic Geyser, Yellowstone National Park
George D. Marler, Donald E. White
1977, Earthquake Information Bulletin (USGS) (9) 21-25
The most significant event that has affected the geyser basins of Yellowstone National Park since its discovery was the Hebgen Lake earthquake, which occurred at 11:37 PM on August 17, 1959, with a Richter magnitude of 7.1. The epicenter of this earthquake was just west of the park, about 48...
History of the Pasamonte achondrite: Relative susceptibility of the SmNd, RbSr, and UPb systems to metamorphic events
D.M. Unruh, N. Nakamura, M. Tatsumoto
1977, Earth and Planetary Science Letters (37) 1-12
The RbSr, SmNd, and UPb systematics of the eucrite Pasamonte have been studied in order to investigate the relative susceptibility of the different systems to post-crystallization events and to...
Earthquake lights
J.S. Derr
1977, Earthquake Information Bulletin (USGS) (9) 18-21
Australian seismicity studies; a historical survey
J. Cleary
1977, Earthquake Information Bulletin (USGS) (9) 4-8
The seismographic stations of the University of California, Berkeley
B. A. Bolt
1977, Earthquake Information Bulletin (USGS) (9) 4-12
Studying earthquakes in New Zealand
G.A. Eiby
1977, Earthquake Information Bulletin (USGS) (9) 17-24
Changes in yellow perch (Perca flavescens) populations of Lake Michigan, 1954-75
LaRue Wells
1977, Journal of the Fisheries Research Board of Canada (34) 1821-1829
In the early and mid-1960s the abundance of yellow perch (Perca flavescens) in Lake Michigan declined abruptly. The decline began in the northern part of the lake and spread progressively southward. Circumstantial evidence suggests that the nonnative alewife (Alosa pseudoharengus), by interfering with perch reproduction, was the primary cause of...
