Paul Stephen Corn, R. Bruce Bury
1988, Journal of Mammalogy (69) 427-429
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateG. Gray Tappan, Thomas Loveland, Donald G. Orr, D. G. Moore, S. M. Howard, Dean J. Tyler
1988, Report
No abstract available....
Mary C. Watzin, P.F. Roscigno, James D. Scurry, E. Randy Roach
1988, Conference Paper, Proceedings of the Fifth National Moss Users Workshop
Geographic Information Systems (GIS) technologies are being used in three neutral resource management studies of Mobile Bay, AL. Each study is briefly discussed. In the first, the GIS was used to analyze wetland habitat changes in the bay over a 25-year period. In the second, cartographic modeling techniques are being...
Alan H. Welch, Michael S. Lico, Jennifer L. Hughes
1988, Groundwater (26) 333-347
Natural occurrences of ground water with moderate (10 to 50 micrograms per liter) to high (greater than 50 micrograms per liter) concentrations of arsenic are common throughout much of the Western United States. High concentrations of arsenic are generally associated with one of four geochemical environments: (1) basin-fill deposits of...
P.A. Bisson, K. Sullivan, J.L. Nielsen
1988, Transactions of the American Fisheries Society (117) 262-273
Habitat use by juvenile coho salmon Oncorhynchus kisutch, steelhead Salmo gairdneri, and the coastal subspecies of cutthroat trout Salmo clarki clarki in small streams in western Washington was influenced by hydraulic characteristics of different types of channel units. Coho salmon preferred pools with average velocities less than 20 cm/s; very few fish were found...
R. L. Smith, J.H. Duff
1988, Applied and Environmental Microbiology (54) 1071-1078
Denitrification was assayed by the acetylene blockage technique in slurried core material obtained from a freshwater sand and gravel aquifer. The aquifer, which has been contaminated with treated sewage for more than 50 years, had a contaminant plume greater than 3.5-km long. Near the contaminant source, groundwater nitrate concentrations were...
D.M. McKnight, B. A. Kimball, K.E. Bencala
1988, Science (240) 637-640
In a small mountain stream in Colorado that receives acidic mine drainage, photoreduction of ferric iron results in a well-defined increase in dissolved ferrous iron during the day. To quantify this process, an instream injection of a conservative tracer was used to measure discharge at the time that each sample...
Robert T. Milhous
1988, Book, Proceedings of the Eighth Annual AGU Front Range Hydrology Days
No abstract available....
P.J. Stuber
1988, Book, Proceedings of the National Symposium of Wetlands from Agricultural Impacts
No abstract available....
Holliday H. Obrecht III
1988, Ibis (130) 300-301
No abstract available....
Fritz L. Knopf, James A. Sedgwick, Richard W. Cannon
1988, Journal of Wildlife Management (52) 280-290
The avifauna within the willow (Salix spp.) community on the Arapaho National Wildlife Refuge (NWR) was dominated (96% of all observations each year) by 11 species of passerine birds during the summers of 1980-81. Using 28 vegetation variables measured or calculated for randomly selected points and points where birds were...
P. E. Malin, J. A. Waller, Roger D. Borcherdt, E. Cranswick, Edward G. Jensen, J. Van Schaak
1988, Bulletin of the Seismological Society of America (78) 401-420
Direct evidence of site distortion of P- and S-wave microearthquake source spectra at Oroville, California, is presented. The data were gathered by placing vertical and three-component seismometers at 90 m intervals in a 500 m borehole through the Cleveland Hill normal fault, on which the 1975, ML = 5.7 Oroville earthquake took place. High-pressure,...
Stanley N. Wiemeyer, J. Michael Scott, Marilyn P. Anderson, Peter H. Bloom, Charles J. Stafford
1988, Journal of Wildlife Management (52) 238-247
Five wild California condors (Gymnogyps californianus) that died in 1980-86 were necropsied and tissues were analyzed for environmental contaminants. Three died of lead (Pb) poisoning, 1 presumably of cyanide (CN) poisoning, and 1 nestling of handling shock. Organochlorine concentrations were low in 4 condors that were analyzed for these contaminants....
Daniel G. McAuley, Jerry R. Longcore
1988, Journal of Wildlife Management (52) 169-176
Brood and duckling survival of ring-necked ducks (Aythya collaris) was examined in relation to wetland water chemistry in eastcentral Maine during 1983-85. Daily survival rates (DSR) of broods and ducklings were determined for 381 ducklings from 64 broods by counts of each brood at 6-10-day intervals during broodrearing. Twelve of...
Ronald E. Rathbun
1988, Journal of Environmental Engineering (114) 473-475
No abstract available....
Ronald M. Windingstad
1988, Journal of Wildlife Management (52) 260-263
Records of 170 sandhill cranes (Grus canadensis) necropsied at the National Wildlife Health Research Center, Wisconsin, from 1976 through 1985 were reviewed as representative samples to determine causes of nonhunting mortality in the mid-continent and Rocky Mountain populations of sandhill cranes. Avian cholera, avian botulism, and ingestion of mycotoxins were...
David G. Krementz, Michael J. Conroy, James E. Hines, H. Frankin Percival
1988, Journal of Wildlife Management (52) 214-226
Using data from 10 preseason and 10 winter major reference areas from 1950-83, the authors tested hypotheses regarding the effects of hunting on the survival and recovery rates of the American black duck (Anas rubripes). Although estimates of the proportion of total annual mortality due to hunting are low (35%...
Fred J. Molz, Mark A. Widdowson
1988, Water Resources Research (24) 615-619
Current understanding of transport processes in aquifers is limited by lack of precise point chemical concentration measurements. Recently, however, some careful measurements of vertical chemical concentration profiles have been made at several locations around the world that appear to support a consistent picture concerning the persistence of large vertical concentration...
Kenneth J. Reinecke, Charles W. Shaiffer
1988, Journal of Wildlife Management (52) 227-232
We tested predictions from the condition bias hypothesis (Weatherland and Greenwood 1981) regarding the effects of sampling methods of body weights of mallards (Anas platyrhynchos) at White River National Wildlife Refuge (WRNWR), Arkansas, during 24 November-8 December 1985. Body weights of 84 mallards caught with unbaited rocket nets in a...
Daniel G. McAuley, Jerry R. Longcore
1988, Journal of Wildlife Management (52) 177-185
Foods of 37 juvenile ring-necked ducks (Aythya collaris) from 16 different wetlands were examined in eastcentral Maine in 1983-85. Invertebrates made up 70% aggregate dry weight (100% occurrence) of the foods of Class Ia-IIa (≤ 24 days old) ducklings and 32% (86% occurrence) of Class IIb-III (≥ 25 days old)...
D.A. Cacchione, D.E. Drake, Brian D. Edwards, M. E. Field, J. V. Gardner, M. A. Hampton, H. A. Karl, N.H. Kenyon, D.G. Masson, David S. McCulloch
1988, Geology (16) 131-134
GLORIA (Geologic Long-Range Inclined Asdic) sidescan sonar images were collected over the entire Exclusive Economic Zone (EEZ) west of the conterminous United States. The continuous, overlapping, swath-mapping technique provides, for the first time, a reconnaissance plan view off the entire sea floor from the edge of the continental shelf to...
E. Hauksson, Lucile M. Jones, T.L. Davis, L.K. Hutton, Pat Williams, Allison L. Bent, A. Gerald Brady, Paul A. Reasenberg, A.J. Michael, R. F. Yerkes, E. Etheredge, R. L. Porcella, M.J.S. Johnston, G. Reagor, C. G. Bufe, E. Cranswick, A.K. Shakal
1988, Science (239) 1409-1412
The Whittier Narrows earthquake sequence (local magnitude, ML = 5.9), which caused over 358-million dollars damage, indicates that assessments of earthquake hazards in the Los Angeles metropolitan area may be underestimated. The sequence ruptured a previously unidentified thrust fault that may be part of a large system of thrust faults that extends...
R.A. Berner, Gary P. Landis
1988, Science (239) 1406-1409
Gases trapped in Miocene to Upper Cretaceous amber were released by gently crushing the amber under vacuum and were analyzed by quadrupole mass spectrometry. After discounting the possibility that the major gases N2, O2, and CO2 underwent appreciable diffusion and diagenetic exchange with their surroundings or reaction with the amber, it...
R.I. Tilling
1988, Nature (332) 108-109
No abstract available. ...
J. L. Bischoff, R. Julia, R. Mora
1988, Nature (332) 68-70
The precise evolutionary position of the Neanderthal people continues to be a major uncertainty in human evolution. Their origin and their relationship to anatomically modern people are unclear and are clouded by poor chronology. Lithic artefacts of the Mousterian type, found throughout Europe and the Mediterranean Basin, are believed to...