Surveyors, cartographers, photogrammetrists; identification friends or foes
Frederick J. Doyle
1983, Cartography (13) 88-95
Largely because of historical developments, the disciplines of geodesy, surveying, photogrammetry, cartography and remote sensing which make up the profession of cartographic science are organised into numerous societies at both the national and international levels. Partly as a consequence of this separatism, an effective education system for the profession is...
Origins of rainbow smelt in Lake Ontario
Roger A. Bergstedt
1983, Journal of Great Lakes Research (9) 582-583
The first rainbow smelt (Osmerus mordax) to enter Lake Ontario were probably migrants from an anadromous strain introduced into New York's Finger Lakes. Since the upper Great Lakes were originally stocked with a landlocked strain from Green Lake, Maine, subsequent migration to Lake Ontario from Lake Erie makes Lake Ontario...
T-XCO2 stability relations and phase equilibria of a calcic carbonate scapolite
B.G. Aitken
1983, Geochimica et Cosmochimica Acta (47) 351-362
At a total pressure of 5 kb, calcic, Cl-free scapolite (Me83) is stable relative to plagioclase-bearing assemblages at T ≧ 625°C">T ≧ 625°C, XCO2≧ 0.12">XCO2≧ 0.12. With decreasing temperature, scapolite breaks down to plagioclase + calcite. Scapolite is replaced by...
Main field and recent secular variation.
L.R. Alldredge
1983, Reviews of Geophysics and Space Physics (21) 599-603
As Cain (1979) indicated might happen in the last IUGG quadrennial report, added resources were made available during the past few years and a real impulse was added to the geomagnetic work in the US by the launching of the MAGSAT Satellite. This new effort paid off in terms of...
Report of diurnal acid metabolism in two aquatic Australian species of Isoetes
Jon E. Keeley
1983, Australian Journal of Ecology (8) 203-204
Previous studies have demonstrated the presence of crassulacean acid metabolism in the North American submerged aquatic Isoetes howellii (Isoetaceae). Diurnal changes in titratable acidity and malic acid levels indicate the presence of this pathway in two Australian species of Isoetes....
Clutch and egg size in the New Guinea chelid turtle Emydura subglobosa
J.E. Lovich, S.W. Gotte, C.H. Ernst
1983, Herpetofauna (14) 95
The reaction of bighorn sheep to human disturbance in the San Gabriel Mountains, California
K.M. Hamilton, S. Holl, C. L. Douglas
1983, Desert Bighorn Council Transactions (27) 50-55
Neoplasms identified in free-flying birds
Lynne M. Siegfried
1983, Avian Diseases (27) 86-99
Nine neoplasms were identified in carcasses of free-flying wild birds received at the National Wildlife Health Laboratory; gross and microscopic descriptions are reported herein. The prevalence of neoplasia in captive and free-flying birds is discussed, and lesions in the present cases are compared with those previously described in mammals and...
Temporal patterns of seed use and availability in a guild of desert ants
Patricia Mehlhop, Norman J. Scott Jr.
1983, Ecological Entomology (8) 69-85
1Temporal patterns of seed use were studied from late winter to autumn in three species of seed-harvesting ants in the Sonoran Desert. Measures of effective foraging activity, dietary niche breadth and dietary niche overlaps were obtained each month and were tested for correlation with estimates of the...
Light/dark control of diurnal acid metabolism in the submerged aquatic Isoetes howellii
Jon E. Keeley
1983, Bulletin of the Southern California Academy of Sciences (82) 39-42
Status of the West Indian manatee in Honduras
G. B. Rathbun, J. A. Powell, G. Cruz
1983, Biological Conservation (26) 301-308
Aerial surveys and interviews with fisherman in Honduras indicate that manatee numbers are low. There is an abundance of suitable habitat, and evidence on the proportion of calves indicates that manatees are reproducing. Although natural mortality occurs when the animals are trapped in small landlocked coastal lagoons, the greatest threat...
MASS STORAGE ESTIMATES FOR THE DIGITAL MAPPING AREA.
Donald L. Light
1983, Conference Paper, Technical Papers of the American Congress of Surveying and Mapping
Modern computer technology offers cartographers the potential for transition from conventional film-oriented methods to digital techniques as the way of mapping in the future. Traditional methods utilizing silver halide aerial and lithographic films for storage are time proven, and film is a very high density archival storage media. In view...
Time and tide: A harmonic and finite element approximation
Roy A. Walters
1983, Conference Paper, Proceedings of the Fifth International Conference on Finite Elements in Flow Problems
No abstract available....
Seabirds between Alaska and Hawaii
Patrick J. Gould
1983, The Condor (85) 286-291
Seabirds were observed between Alaska and Hawaii along 158°W longitude from 24 October to 6 November 1976. Their distributions and abundances corresponded remarkably well to oceanographic regions. Indices of seabird density dropped in a series of plateaus from 44 birds/km2 in the Alaska Current System to less than 1 bird/km2...
The Frontier Formation and mid- Cretaceous orogeny in the foreland of southwestern Wyoming
E. Allen Merewether
1983, Mountain Geologist (20) 121-138
Tectonism in SW Wyoming and adjoining areas, and fluctuations of sea level in the central USA during the mid-Cretaceous are represented by the regional stratigraphy of the Frontier Formation. The Frontier consists mainly of clastic rocks that were deposited in marine and nonmarine environments during latest Albian, Cenomanian, Turonian, and...
Earthquakes in the Orozco transform zone: seismicity, source mechanisms, and tectonics
Anne M. Trehu, Sean C. Solomon
1983, Journal of Geophysical Research B: Solid Earth (88) 8203-8225
As part of the Rivera Ocean Seismic Experiment, a network of ocean bottom seismometers and hydrophones was deployed in order to determine the seismic characteristics of the Orozco transform fault in the central eastern Pacific. We present hypocentral locations and source mechanisms for 70 earthquakes recorded by this network. All...
Myxosoma cerebralis (Myxozoa: Myxosporea) etiologic agent of salmonid whirling disease requires tubificid worm (Annelida: Oligochaetes) in its life cycle
M.E. Markiw, K. Wolf
1983, Journal of Protozoology (30) 561-564
Studies of the life cycle of Myxosoma cerebralis showed that development of infectivity did not occur endogenously but that the spore “aging” process required participation of an aquatic tubificid oligochaete. Data suggestive of such involvement were derived from trials in which spores were “aged” in an array of inert, sterilized, pasteurized, or...
The magnetic field of the earth, 1980 magnetic inclination
E. B. Fabiano, N.W. Peddie, A.K. Zunde
1983, IMAP 1458
No abstract available....
Notes on sedimentation activities calendar year 1982
1983, Report
This report is a digest of information furnished by those Federal agencies conducting sedimentation investigations. It includes descriptions of work in progress or planned, important findings, new methods, new publications, laboratory and other research activities, and other pertinent information. The material has been organized by major drainage regions in the...
The magnetic field of the earth, 1980 magnetic declination
E. B. Fabiano, N.W. Peddie, A.K. Zunde
1983, IMAP 1457
No abstract available....
Fish cell lines: persistent infection with a coronavirus
B. C. Lidgerding, F. Hetrick
1983, Conference Paper, In Vitro
No abstract available at this time...
[Book review] Ducks, geese and swans of North America
Gary L. Krapu
1983, The Auk (100) 246-248
This is the 3rd edition of the classic work "The Ducks, Geese and Swans of North America," which was first published in December 1942. The original edition was authored by Francis C. Kortright with color plates by T. M. Shortt. An authoritative reference on North American waterfowl for many years,...
Seismology in Colombia
J.R. Goberna
1983, Earthquake Information Bulletin (USGS) (15) 7-10
[Book review] Waterfowl ecology and management: Selected readings
Gary L. Krapu
1983, The Auk (100) 535-536
This book is a compilation of papers from the extensive and varied published literature on the ecology and management of waterfowl. The 125 technical papers reprinted in this book are arranged in eight major sections and are from 21 journals, government reports, several books, and proceedings of symposia and annual...
Tangshan, six years later
R. E. Wallace
1983, Earthquake Information Bulletin (USGS) (15) 102-107
At 3:42 a.m on July 28, 1976, the now infamous Tangshan earthquake struck that heavily industrialized city in eastern China killing, by official count, 240,000 people. During the first 2 years after the earthquake, estimates of casualties ranged from 650,000 to 800,000. Almost certainly the exact number will never be...
