William A. Link, Jeff S. Hatfield
1990, Ecology (71) 1217-1220
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateDavid H. Ellis, Cameron B. Kepler, Angela K. Kepler, K. Teeb’aki
1990, Emu (90) 202
No abstract available....
Michael E. Field, James V. Gardner
1990, Geological Society of America Bulletin (102) 721-733
Pliocene-Pleistocene marine deposits overlying Messinian evaporites off northeast Spain are composed of five distinct seismic facies. These facies are interpreted to represent deposition in five adjacent settings: distal (isolated) basin, basin plain, base of slope,slope, and shelf. Contrary to previous studies, a submarine-fan style of deposition is not evident. Distal-basin...
Roland von Huene, S. Lallemand
1990, Geological Society of America Bulletin (102) 704-720
The volume of material removed by subduction erosion can be estimated quantitatively if the position of the volcanic arc, the position of the paleotrench axis, and a paleo-depth reference surface are known. Estimates based on these parameters along the Japan and Peru Trenches indicate rates of erosion comparable to well-known...
Arthur L. Baehr, Clifford J. Bruell
1990, Water Resources Research (26) 1155-1163
The organic component of the vapor phase of a porous medium contaminated by an immiscible organic liquid can be significant enough to violate the condition of a dilute species diffusing in a bulk phase assumed by Fick's law. The Stefan-Maxwell equations provide a more comprehensive model for quantifying steady state...
Robert McLaughlin, George W. Andrews
1990, Diatom Research (5) 55-61
A distinctive new fossil freshwater diatom species, Cymbella langii McLaughlin & Andrews, is described from a diatomaceous earth deposit in the Chamita Formation of the Santa Fe Group near Espaiiola, central New Mexico. This deposit is dated by K-Ar and mammalian biostratigraphy as Hemphillian or late Miocene in...
M. Wyss, L. Slater, Robert O. Burford
1990, Nature (345) 428-431
Crustal deformations along fault zones are monitored because they show the accumulation and possible premonitory release of strain energy before major earthquakes. On the Parkfield segment of the San Andreas fault the next mainshock (local magnitude ML=5.7) is expected to occur between 1983 and 1993, based on the relatively regular recurrence...
John C. Eichelberger, S. Ballard, Charles R. Carrigan, A. Goodliffe, W. Hildreth, E.Y. Iwatsubo, P. W. Kasameyer, T. E. C. Keith, Juergen Kienle, J. J. Papike, D. D. Pollard, D.B. Stone, P. C. Wallmann, P.L. Ward, M. Wilt, M. E. Yount
1990, Eos, Transactions, American Geophysical Union (71) 733-736
The great eruption of 1912 in the Aleutian Range of Alaska (Figure 1) is exceptional for both its size and relative simplicity. It was the largest eruption of this century and the largest rhyolitic outburst in almost 20 centuries. The 60-hour, 30-km3 (ejecta volume) eruption produced extensive fallout deposits, an ash-flow...
Wolf-Dieter N. Busch, Ronald G. Osborn, Gregor T. Auble
1990, Book, Proceedings of an International Symposium: Wetlands of the Great Lakes: Protection and Restoration Policies; Status of the Science
Lake Ontario's water levels have been regulated since 1959, after the completion of the St. Lawrence River navigation and hydropower development project. The plan used to guide the regulation (1958-D) has been in effect since 1963 (Bryce, 1982). The purpose of the regulation was to prevent extreme...
Richard Hereford, P. W. Huntoon
1990, Book, Grand Canyon geology
No abstract available....
Paul Thomas, Steven W. Squyres, M. H. Carr
1990, Journal of Geophysical Research B: Solid Earth (95) 14345-14355
On the flanks of Olympus Mons is a series of terraces, concentrically distributed around the caldera. Their morphology and location suggest that they could be thrust faults caused by compressional failure of the cone. In an attempt to understand the mechanism of faulting and the possible influences of the interior...
J. Belnap
1990, Book, Measurement of toxic and related air pollutants: Proceedings of the 1990 EPA/A&WMA International Symposium
No abstract available....
J.L. Bada, Keith A. Kvenvolden
1990, Science (248) 539-540
No abstract available....
Joseph H. Elrod, Anthony Frank
1990, North American Journal of Fisheries Management (10) 196-201
A simple chi-square test can be used to analyze recoveries from a paired-release experiment to determine whether differential survival occurs between two groups of fish. The sample size required for analysis is a function of (1) the proportion of fish stocked, (2) the expected proportion at recovery, (3) the level...
Steven P. French, Marilynn G. French
1990, Bears: Their Biology and Management (8) 335-341
Grizzly bears (Ursus arctos horribilis) were observed preying on elk calves (Cervus elaphus) on 60 occasions in Yellowstone National Park, with 29 confirmed kills. Some bears were deliberate predators and effectively preyed on elk calves for short periods each spring, killing up to 1 calf daily. Primary hunting techniques were...
Harold D. Picton, Daniel A. Palmisciano, Gerald Nelson
1990, Bears: Their Biology and Management (8) 421-424
Fluctuating asymmetry of adult skulls was used to test he genetic isolation of the Yellowstone grizzly bear population from its nearest neighbor. An overall summary statistic was used in addition to 16 other parameters. Tests found the males of the Yellowstone populaion to be more vaiable than those of the...
Douglas C. Andersen
1990, Journal of Mammalogy (71) 177-187
The influence of habitat patchiness and unpalatable plants on the search path of the plains pocket gopher (Geomys bursarius) was examined in outdoor enclosures. Separate experiments were used to evaluate how individual animals explored (by tunnel excavation) enclosures free of plants except for one or more dense patches of a...
Gary Heinz, Grey W. Pendleton, Alexander J. Krynitsky, Lyn G. Gold
1990, Archives of Environmental Contamination and Toxicology (19) 374-379
Selenium accumulation and loss were measured in adult mallards (Anas platyrhynchos) fed selenomethionine during two experiments. In Experiment 1, both sexes were fed a diet containing 10 ppm selenium for 6 weeks, followed by 6 weeks on untreated feed. Selenium accumulation in liver and muscle of females was described by...
Roger D. Borcherdt, C. Langer, John R. Filson, D.W. Simpson, G. Glassmoyer, M. Andrews, E. Cranswick
1990, Conference Paper, Proceedings of the fourth U.S. National Conference on Earthquake Engineering
No abstract available....
David S. Bigelow, A. Scott Denning
1990, Environmental Science & Technology (24) 758-760
In the last decade the United States and Canada have made significant progress in establishing spatial ad temporal estimates of atmospheric deposition throughout North America. Fundamental to the wet-deposition portion of these estimates is the accurate and precise measurement of precipitation amount. Goodison and others (I-3) have reported on a...
Robert T. Milhous
1990, Journal of Hydraulic Engineering (116) 730-732
No abstract available....
Roger D. Borcherdt, N. C. Donovan, Mehmet Celebi, A. Shakal, M. Huang, M. Reichle, C. Ventura, T. Cao, R. Bherburne, M. Savage, Robert B. Darragh, C. Petersen, David Boore, W. B. Joyner, E. V. Leyendecker, P.C. Thenhaus, Kimberly W. Campo, Margaret G. Hopper, S.L. Hanson, S. T. Algermissen, David M. Perkins, Susan E. Hough, D. Simpson, A. Lerner-Lam, P.A. Friberg, R. Busby, L. Shengold, M. Tuttle, Edward H. Field, K.H. Jacob, J. Pacheco, C. Estabrook, M. Peterson, Douglas H. Johnson, Arthur D. Frankel
1990, Earthquake Spectra (S1) 25-80
No abstract available....
Rudolph S. Parrish, Charles N. Smith
1990, Ecological Modelling (51) 59-72
A quantitative method is described for testing whether model predictions fall within a specified factor of true values. The technique is based on classical theory for confidence regions on unknown population parameters and can be related to hypothesis testing in both univariate and multivariate situations. A capability index is defined...
Nathan L. Stephenson
1990, American Naturalist (135) 649-670
The water balance describes climate as it is sensed by plants, as the interaction of energy and water in the environment. Discriminant analysis showed that the distribution of North American plant formations was more highly correlated with the water balance (actual evapotranspiration and deficit) than with the more traditional measures...
K.C. Sowizral, G. L. Rumsey, J.E. Kinsella
1990, Lipids (25) 246-253
The effects of α-linolenic acid enriched diets on the lipid composition of rainbow trout (Oncorhynchus mykiss) muscle and liver were determined. Diets containing 0, 4, 10 or 20% (wt/wt) linseed oil were fed to 280 trout for up to 64 days. Linolenic acid levels in total lipid, neutral lipid and...