Thomas J. Stohlgren
1987, Book, Proceedings of the National Wilderness Research Conference
No abstract available....
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Page 4789, results 119701 - 119725
Publication Extents
Not all publications have extents, not all extents are completely accurateJames A. Sedgwick, Fritz L. Knopf
1987, Journal of Wildlife Management (51) 230-237
We studied avian habitat relationships and the impact of grazing on breeding densities of selected migratory birds in a plains cottonwood (Populus sargentii) bottomland in northeastern Colorado. Five 16-ha plots served as controls and 5 were fenced and fall-grazed October-November 1982-84 following a season of pre-treatment study in the spring...
Robert T. Milhous
1987, Journal of Hydraulic Engineering (113) 921-923
No abstract available....
Michael D. Samuel, Edward O. Garton
1987, Journal of Wildlife Management (51) 254-257
The amount of time an animal spends in particular areas is an important aspect of estimating its home range and activity pattern. Calculations of home range using the harmonic mean can be modified to reflect the amount of time or the type of activity observed at each location. The...
R. Bruce Bury, Paul Stephen Corn
1987, Journal of Wildlife Management (51) 112-119
We operated pitfall arrays with 5-m drift fences at 30 stands in western Oregon and Washington for 180 days. Pitfall arrays had a pronounced removal effect on small mammals (but not on the herpetofauna) during the 1st 60 days of trapping. Conventional short (10-day) trapping periods were only adequate to...
Thomas J. Stohlgren, David J. Parsons
1987, Atmospheric Environment (21) 1369-1374
Sequoia National Park has monitored wet deposition chemistry in conjunction with the National Atmospheric Deposition Program and National Trends Network (NADP/NTN), on a weekly basis since July, 1980. Annual deposition of H, NO3 and SO4 (0.045, 3.6, and 3.9 kg ha−1 a−1, respectively) is relatively low compared to that measured...
George R. Aiken
I.H. Suffet, Murugan Malaiyandi, editor(s)
1987, Book chapter, Organic pollutants in water: sampling, analysis, and toxicity testing
Adsorption on synthetic macroporous resins, such as the Amberlite XAD series and Duolite A-7, is routinely used to isolate and concentrate organic acids from forge volumes of water. Samples as large as 24,500 L have been processed on site by using these resins. Two established extraction schemes using XAD-8 and...
Michael L. Scott, Peter G. Murphy
1987, American Midland Naturalist (117) 10-16
Regeneration of Thuja occidentalis L. was examined in an old-growth dune forest on South Manitou Island, Michigan. To estimate the current status of cedar regeneration, we determined size structure of seedlings and stems and analyzed present patterns of establishment and persistence relative to substrate type. There has been a shift...
Robert T. Milhous
1987, Book chapter, Sediment Transport in Gravel-Bed Rivers
No abstract available....
Water Resources Division, U.S. Geological Survey
1987, Report
This index is designed to inform map users of the various series of maps produced and distributed by the U.S. Geological Survey....
C. E. Rostad, W. E. Pereira
Robert C. Averett, editor(s)
1987, Book chapter, Chemical quality of water and the hydrologic cycle
No abstract available. ...
R.J. Scholefield
1987, Technical Report 50
Abstract not submitted to date...
M. R. Miller
1987, Research Information Bulletin 87-113
No abstract available at this time...
Ronald M. Windingstad, Fred X. Kartch, Richard K. Stroud, Milton R. Smith
1987, Journal of Wildlife Diseases (23) 443-446
About 150 waterfowl died and another 250 became weak and lethargic from suspected salt poisoning after using White Lake, a highly saline lake in Mountrail County, North Dakota. Frigid temperatures made fresh water unavailable, forcing the birds to ingest the saline waters with resultant toxic effects. Sick birds recovered when...
C. A. Faanes
1987, Technical Report 7
Research was conducted to determine the magnitude of avian mortality caused by power transmission lines in prairie habitats during the two spring and two fall migration periods between July 1980 and May 1982. Searches for dead birds were made at least twice weekly during each migration period. Study sites were...
L.C. McKenzie, V.J. Catrow, J.A. Mann
1987, Biological Report 5
No abstract available at this time...
Dale E. Wilberg, G. J. Smith, D. Michael Roark, Patrick M. Lambert, V.L. Jensen, Gail E. Cordy, Carole B. Burden, Michael Enright, D. C. Emett, Susan A. Thiros, G. W. Sandberg, R. W Puchta, L. R. Herbert
1987, Cooperative Investigations Report 27
This is the twenty-fourth in a Series of annual reports that describe ground-water Conditions in Utah. Reports in the series, prepared cooperatively by the U.S. Geological Survey and the Utah Division of Water Resources, provide data to enable interested parties to keep abreast of changing ground-water conditions.This report, like...
R. A. Sloto
1987, Water-Resources Investigations Report 87-4098
The effects of human activity on the water resources of a 207-square-mile area of eastern Chester County was evaluated. The most serious consequence of urbanization is the contamination of ground water by volatile organic compounds, which were detected in 39 percent of the 70 wells sampled. As many as nine...
Scott A. Hatch
1987, The Auk (104) 450-461
I studied the timing and frequency of copulation in mated pairs and the occurrence of extra-pair copulation (EPC) among Northern Fulmars (Fulmarus glacialis) for 2 yr. Copulation peaked 24 days before laying, a few days before females departed on a prelaying exodus of about 3 weeks. I estimated that females...
S.J. Williams, E.P. Meisburger
1987, Conference Paper
During investigations of the regional geologic framework of Long Island shelf by means of seismic-reflection profiles and cores, Williams (1976) identified a rather limited area on the shelf off Jones Beach where Upper Cretaceous or early Tertiary age glauconite-rich lithosomes subcrop at the seabed, seaward of the shoreface. A suite...
J. Pojeta Jr., B.S. Norford
1987, Journal of Paleontology (61) 508-520
The pelecypod genera Slava and Rhombopteria are reported for the first time from Canada, where they occur in a limestone concretion within the Cape Phillips Formation, Cornwallis Island, Arctic Archipelago. These genera are characteristic of Silurian rocks in Bohemia, Czechoslovakia. Graptolites from the same concretion indicate the Monograptus ludensis Zone...
Douglas R. Binnie, Alden P. Colvocoresses
1987, Photogrammetric Engineering and Remote Sensing (53) 307-310
The Denali National Park and Preserve 1:250,000-scale image map has been prepared and published as part of the US Geological Survey's (USGS) continuing research to improve image mapping techniques. Nine multispectral scanner (MSS) images were geometrically corrected, digitally mosaicked, and enhanced at the National Mapping Division's (NMD) EROS Data Center...
M. Heidari, J. Sadeghipour, O. Drici
1987, Water Resources Bulletin (23) 325-335
A ground-water-management model was developed to investigate the best management options for the containment of an oil-field-brine plume in the Equus Beds aquifer in south-central Kansas. The main purpose of the management model was to find the optimal locations and minimum rates of pumpage of a set of plume-interception wells,...
A.L. Grunder, J. M. Thompson, W. Hildreth
1987, Journal of Volcanology and Geothermal Research (32) 287-298
Active thermal springs associated with the late Pleistocene Calabozos caldera complex occur in two groups: the Colorado group which issues along structures related to caldera collapse and resurgence, and the Puesto Calabozos group, a nearby cluster that is chemically distinct and probably unrelated to the Colorado springs. Most of the...
R. Raymond Jr., C. C. Cameron, A.D. Cohen
1987, International Journal of Coal Geology (8) 175-187
The Heath, Great Cranberry Island, Maine, offers a unique locality for studying lateral and vertical relationships between radically different peat types within 1 km2. The majority of The Heath is a Sphagnum moss-dominated raised bog. Surrounding the raised bog is a swamp/marsh complex...