Risk perceptions and behavioral context: U.S. Forest Service fire management professionals
Jonathan G. Taylor, Edwin H. Carpenter, Hanna J. Cortner, David A. Cleaves
1989, Society & Natural Resources: An International Journal (1) 253-268
Fire managers from the U.S. Forest Service were surveyed to determine which decision factors most strongly influenced their fire‐risk decisions. Safety, the resources at risk, public opinion, and the reliability of information were important influences on these decisions. This research allowed direct comparison between fire managers’ perceptions of factor importance...
Hydrology and hydraulics applied to fishery management in large rivers
C.B. Stalnaker, Robert T. Milhous, K.D. Bovee
1989, Book, Proceedings of the International Large River Symposium
No abstract available....
Foods and dietary strategies of prairie-nesting ruddy ducks and redheads
Marc C. Woodin, George A. Swanson
1989, The Condor (91) 280-287
Actively feeding Ruddy Ducks (Oxyura jamaicensis) and Redheads (Aythya americana) were collected from North Dakota wetlands during the 1979-1981 breeding seasons. Foods found within esophagi were analyzed on a wet-weight aggregate percent basis. Male and prelaying and laying female Ruddy Ducks consumed >90% invertebrates, primarily chironomids....
Methanogenesis in hypersaline environments
Ronald S. Oremland, G.M. King
1989, Book chapter, Microbial materials: Physiological ecology of benthic microbial communities
No abstract available. ...
Thermal and cementation histories of Permian shelf-edge carbonate rocks in the Nanpanjiang Basin, South China
Robert B. Halley, Judith T. Parrish, Xie Zahn, Hu Wenhai, Peter A. Scholle, Su Zhongrui, Zhang Yirong, Huang Yunming, Li Guangxuan
1989, Book chapter, Petroleum resources of China and related subjects
As of 1984, the Nanpanjiang Basin of South China has had almost no exploration by drilling although oil seeps exist among its margins and producing wells occur in adjacent basins. however, cooperative studies by petroleum geologists and geochemists of the United States and the People's Republic of China (1982-1984) show...
Erosion and deterioration of the Isles Dernieres Barrier Island Arc, Louisiana, U.S.A.: 1853 to 1988
Randolph A. McBride, Shea Penland, Bruce E. Jaffe, S. Jeffress Williams, Asbury H. Sallenger Jr., Karen A. Westphal
1989, Gulf Coast Association of Geological Societies Transactions (39) 431-444
Using cartographic and aerial photography data from the years 1853, 1890, 1934, 1956, 1978, 1984, and 1988, shoreline change maps of the Isles Dernieres barrier island arc were constructed. These data were accurately superimposed, using a computer mapping system, which removed projection, datum, scale, and other cartographic inconsistencies. Linear, areal,...
Valley oak inventory and monitoring at Santa Monica Mountains
K.C. Danielsen, W. L. Halvorson
1989, Natural Resource Report NPS-NR-89-01
No abstract available....
Evaluation of 215 candidate fungicides for use in fish culture
T.A. Bailey, S.M. Jeffrey
1989, Investigations in Fish Control 99
Abstract not submitted to date...
Sago wetlands important to migrating canvasbacks
H.A. Kantrud
1989, Research Information Bulletin 89-24
History of acute toxicity tests with fish, 1863-1987
J. B. Hunn
1989, Investigations in Fish Control 98
Abstract not submitted to date...
Premigrational movements and behavior of young mallards and wood ducks in north-central Minnesota
R.E. Kirby, L.M. Cowardin, J.R. Tester
1989, Fish and Wildlife Research 5
Movements and behavior of 89 young mallards (Anas platyrhynchos) and 48 young wood ducks (Aix sponsa) were monitored on a 932-km2 study area in north-central Minnesota in late summer and fall, 1972-74, with telemetry, visual observation, and aerial surveys. Initial flights of both species were confined to the natal (brood)...
Gazetteer of the Antarctic
U.S. Board on Geographic Names, Defense Mapping Agency, Water Resources Division, U.S. Geological Survey, National Science Foundation
1989, Report 89-98
This gazetteer lists antarctic names approved by the United States Board on Geographic Names and by the Secretary of the Interior. The Board is the interagency body created by law to standardize and promulgate geographic names for official purposes. As the official standard for names in Antarctica, the gazetteer assures...
Transition 1988: earth science in the public service
Water Resources Division, U.S. Geological Survey
1989, Report
No abstract available....
Hydrologic effects of climate change in the Delaware River basin
Gregory J. McCabe, Mark A. Ayers
1989, Water Resources Bulletin (25) 1231-1242
The Thornthwaite water balance and combinations of temperature and precipitation changes representing climate change were used to estimate changes in seasonal soil-moisture and runoff in the Delaware River basin. Winter warming may cause a greater proportion of precipitation in the northern part of the basin to fall as rain, which...
Geological hazards programs and research in the USA
J.R. Filson
1989, Earthquakes & Volcanoes (USGS) (20) 176-189
Geological hazards have been studied for centuries, but government support of research to lessen their effects is relatively new. This article briefly describes government programs and research underway in the USA that are directed towards reducing losses of life and property from earthquakes, volcanic eruptions and landslides. -from Author...
Late neogene history of the Pacific-Caribbean gateway
G. Keller, C.E. Zenker, S.M. Stone
1989, Journal of South American Earth Sciences (2) 73-108
Planktic foraminiferal provinces of Caribbean DSDP Hole 502A and East Pacific DSDP Hole 503A have been analyzed and compared with benthic and planktic isotope records, carbonate, hiatus events, and sea level changes. Four major events are evident in the closure history of the Pacific-Caribbean gateway, at 6.2, 4.2, 2.4 and...
The nature of the pressure-induced metallization of FeO and its implications to the core-mantle boundary
David M. Sherman
1989, Geophysical Research Letters (16) 515-518
The pressure and temperature-induced metallization of FeO discovered by Knittle et al [1986] is here argued to result from a Mott transition associated with increased Fe(3d)-Fe(3d) orbital overlap at high pressures. The metallic bonding in the Fe(3d) t2g band may account for the 4% volume decrease of...
Sr, Nd, Pb Isotope geochemistry and magma evolution of the potassic volcanic rocks, Wudalianchi, Northeast China
W. Junwen, X. Guanghong, M. Tatsumoto, A. R. Basu
1989, Chinese Journal of Geochemistry (8) 322-330
Wudalianchi volcanic rocks are the most typical Cenozoic potassic volcanic rocks in eastern China. Compositional comparisons between whole rocks and glasses of various occurrences indicate that the magma tends to become rich in silica and alkalis as a result of crystal differentiation in the course of evolution. They are unique...
Artificial reef observations from a manned submersible off southeast Florida
E.A. Shinn, R.I. Wicklund
1989, Bulletin of Marine Science (44) 1041-1050
Examination of 16 artificial reef structures in depths ranging from 30-120m indicated that the highest numbers of fish are found around reefs in water shallower than 46m. Fewer fish, especially those with tropical coral reef affinities, <46m was probably caused by a thermocline. Algae and reef community encrusters, abundant on...
Preservation of samples for dissolved mercury
S. N. Hamlin
1989, Water Resources Bulletin (25) 255-262
Water samples for dissolved mercury requires special treatment because of the high chemical mobility and volatility of this element. Widespread use of mercury and its compounds has provided many avenues for contamination of water. Two laboratory tests were done to determine the relative permeabilities of glass and plastic sample bottles...
An empirical Bayes approach to analyzing recurring animal surveys
Douglas H. Johnson
1989, Ecology (70) 945-952
Recurring estimates of the size of animal populations are often required by biologists of wildlife managers. Because of cost or other constraints, estimates frequently lack the accuracy desired but cannot readily be improved by additional sampling. This report proposes a statistical method employing empirical Bayes (EB) estimators as alternatives to...
Petrology of the zoned calcalkaline magma chamber of Mount Mazama, Crater Lake, Oregon
T. H. Druitt, C. R. Bacon
1989, Contributions to Mineralogy and Petrology (101) 245-259
Evolution of the magma chamber at Mount Mazama involved repeated recharge by two types of andesite (high-Sr and low-Sr), crystal fractionation, crystal accumulation, assimilation, and magma mixing (Bacon and Druitt 1988). This paper addresses the modal compositions, textures, mineral chemistry and magmatic temperatures of (i) products of the 6845±50 BP...
Distillation irrigation: A low-energy process for coupling water purification and drip irrigation
Jim Constantz
1989, Agricultural Water Management (15) 253-264
A method is proposed for combining solar distillation and drip irrigation to simultaneously desalinize water and apply this water to row crops. In this paper, the basic method is illustrated by a simple device constructed primarily of sheets of plastic, which uses solar energy to distill impaired water and apply...
Comparison of seismic waveform inversion results for the rupture history of a finite fault: Application to the 1986 North Palm Springs, California, earthquake
S. Hartzell
1989, Journal of Geophysical Research Solid Earth (94) 7515-7534
The July 8, 1986, North Palm Springs earthquake is used as a basis for comparison of several different approaches to the solution for the rupture history of a finite fault. The inversion of different waveform data is considered; both teleseismic P waveforms and local strong ground motion records. Linear parametrizations for slip...
Mid-Cretaceous alluvial-plain incision related to eustasy, southeastern Colorado Plateau
W. M. Aubrey
1989, Geological Society of America Bulletin (101) 443-449
Eustatic effects on the deposition of ancient coastal and marine rocks are well known, but eustasy also can affect depositional patterns and processes well inland from the sea and play an important role in the development of nonmarine unconformities. In the southeastern part of the Colorado Plateau, fluvial rocks of...
