Survival of young American alligators on a Florida lake
Allan R. Woodward, Tommy C. Hines, C.L. Abercrombie, James D. Nichols
1987, Journal of Wildlife Management (51) 931-937
A capture-recapture study was conducted on Orange Lake, Florida, from 1979 through 1984 to estimate survival rates of young in an American alligator (Alligator mississippiensis) populations. Hatchlings remained together in sibling groups (pods) for at least their 1st year and then began to disperse during their 2nd spring and summer....
Taphonomy and paleoecology of nonmarine Mollusca; indicators of alluvial plain lacustrine sedimentation, upper part of the Tongue River Member, Fort Union Formation (Paleocene), northern Powder River basin, Wyoming and Montana
John H. Hanley, Romeo M. Flores
1987, Palaios (2) 479-496
No abstract available. ...
Survival and band recovery rates of sympatric American black ducks and mallards
James D. Nichols, Holliday H. Obrecht III, James E. Hines
1987, Journal of Wildlife Management (51) 700-710
Banding and recovery data from American black ducks (Anas rubripes) and mallards (A. platyrhynchos) banded in the same breeding or wintering areas over the same time periods were used to estimate annual survival and band recovery rates. Recovery rates, based on preseason bandings, were very similar for sympatric black ducks...
Winter fasting and refeeding effects on urine characteristics in white-tailed deer
Glenn D. DelGiudice, L. David Mech, Ulysses S. Seal, Patrick D. Karns
1987, Journal of Wildlife Management (51) 860-864
The effects of dietary protein, fasting, and refeeding on urinary characteristics of 9 captive, female white-tailed deer (Odocoileus virginianus) were studied from 23 February to 3 May 1984. Urinary sodium (na) and potassium (K) were diminished in fasted deer after 2 and 4 weeks. Renal excretion of Na and K...
A decoy trap for breeding-season mallards in North Dakota
David E. Sharp, John T. Lokemoen
1987, Journal of Wildlife Management (51) 711-715
A modified decoy trap was effective for capturing wild adult male and female mallards (Anas platyrhynchos) during the 1980-81 breeding seasons in North Dakota. Key features contributing to the trap's success included a central decoy cylinder, large capture compartments with spring-door openings, an adjustable trigger mechanism with a balanced door...
FORFLO: A model to predict changes in bottomland hardwood forests
Michael S. Brody, Edward Pendleton
1987, Report
Hydrology and water quality of a wetland used to receive wastewater effluent, St. Joseph, Minnesota
J. R. Stark, R. G. Brown
1987, Conference Paper
No abstract available....
Movement and fate of crude-oil in contaminants in the subsurface environment at Bemidji, Minnesota: Chapter C in U.S. Geological Survey program on toxic waste--ground-water contamination: Proceedings of the Third technical meeting, Pensacola, Florida, March 23-27, 1987
Marc F. Hult
1987, Open-File Report 87-109-C
On August 20, 1979, a pipeline break in a remote area near Bemidji, Minn. (fig. C-l), resulted in the release of 1.5x105 L (liters) of crude oil. Although about 1.1x105 L were removed from the site as part of the cleanup, some crude oil infiltrated the ground and percolated to the...
Dinosaurs on the North Slope, Alaska: High latitude, latest cretaceous environments
E. M. Brouwers, W.A. Clemens, R.A. Spicer, T. A. Ager, L. D. Carter, W.V. Sliter
1987, Science (237) 1608-1610
Abundant skeletal remains demonstrate that lambeosaurine hadrosaurid, tyrannosaurid, and troodontid dinosaurs lived on the Alaskan North Slope during late Campanian—early Maestrichtian time (about 66 to 76 million years ago) in a deltaic environment dominated by herbaceous vegetation. The high ground terrestrial plant community was a mild- to cold-temperate forest composed...
Occurrence of a predicted earthquake on the San Andreas fault
M. Wyss, Robert O. Burford
1987, Nature (329) 323-325
In May 1985 we predicted1 that an earthquake would occur on the San Andreas fault near Stone Canyon, California within a year. The prediction was based on the observation of seismic quiescence–defined as a significant decrease in the average occurrence rate of earthquakes within the source volume of the future mainshock....
Tectonics and conductivity structures in the Southern Washington Cascades
William D. Stanley, Carol A. Finn, Joseph L. Plesha
1987, Journal of Geophysical Research B: Solid Earth (92) 10179-10193
The tectonic setting of the southern Washington Cascades has been studied with the aid of magnetotelluric (MT) and other geophysical data. The main feature of interest in the geophysical data is a broad high-conductivity anomaly mapped with MT and geomagnetic variation (GMV) data. This anomaly is located roughly within the...
Evidence from gravity data for an intrusive complex beneath Mount St. Helens
David L. Williams, Gerda Abrams, Carol A. Finn, Daniel Dzurisin, Daniel J. Johnson, Roger P. Denlinger
1987, Journal of Geophysical Research B: Solid Earth (92) 10207-10222
On the basis of gravity data, aided by aeromagnetic, magnetotelluric, side-looking radar, and geologic information, we tentatively identify a large, shallow intrusive complex beneath Mount St. Helens. The complex is roughly 5–6 km thick and has apparently intruded a buried and compressed Mesozoic forearc sedimentary sequence. The lateral extent of...
An aeromagnetic study of Mount St. Helens
Carol A. Finn, David L. Williams
1987, Journal of Geophysical Research B: Solid Earth (92) 10194-10206
Aeromagnetic data from surveys flown by the U.S. Geological Survey over Mount St. Helens, Washington, before and after the climactic May 18, 1980, eruption were used to determine the bulk magnetic properties of the volcano and to delineate a buried source. We assumed that most of the edifice of preeruption...
Seismomagnetic observation during the 8 July 1986 magnitude 5.9 North Palm Springs earthquake
M.J.S. Johnston, R.J. Mueller
1987, Science (237) 1201-1203
A differentially connected array of 24 proton magnetometers has operated along the San Andreas fault since 1976. Seismomagnetic offsets of 1.2 and 0.3 nanotesla were observed at epicentral distances of 3 and 9 kilometers, respectively, after the 8 July 1986 magnitude 5.9 North Palm Springs earthquake. These seismomagnetic observations are...
Below-ground herbivory in natural communities: a review emphasizing fossorial animals
Douglas C. Andersen
1987, The Quarterly Review of Biology (62) 261-286
Roots, bulbs, corms, and other below-ground organs are almost universally present in communities containing vascular plants. A large and taxonomically diverse group of herbivores uses these below-ground plant parts as its sole or primary source of food. Important within this group are plant-parasitic nematodes and several fossorial taxa that affect...
Processing and analysis of commercial satellite image data of the nuclear accident at Chernobyl, U.S.S.R.
Franklin G. Sadowski, Steven J. Covington, Joy J. Hood, David Meyer, John L. Dwyer, Wayne A. Miller
1987, Conference Paper, 1987 ASPRS-ACSM Fall Convention: ASPRS technical papers
No abstract available....
Delindeite titanosilicates and lourenswalsite, two new from the Magnet Cove region, Arkansas
Daniel E. Appleman, Howard T. Evans Jr., Gordon L. Nord Jr., Edward J. Dwornik, Charles Milton
1987, Mineralogical Magazine (51) 417-425
Delindeite and lourenswalsite are two new barium titanosilicate minerals found as microscopic crystals in miarolitic cavities in nepheline syenite in the Diamond Jo quarry, Hot Spring County, Arkansas. Delindeite is found as aggregates of flake-like crystallites in compact spherules, light pinkish grey in colour, with a resinous, pearly lustre. The...
Evolution of the Early Proterozoic Colorado province: Constraints from U-Pb geochronology
John C. Reed Jr., M. E. Bickford, Wayne R. Premo, John N. Aleinikoff, John S. Pallister
1987, Geology (15) 861-865
The Colorado province represents an addition of a belt of rocks more than 500 km wide to the southern margin of the Archean Wyoming craton during the Early Proterozoic, between about 1790 and 1660 Ma. Correspondence in ages between metamorphism, deformation, and plutonism; association of volcanic rocks with comagmatic calc-alkalic...
Analysis of the U.S. Geological Survey streamgaging network
A. G. Scott
1987, Water Science and Technology (19) 31-42
This paper summarizes the results from the first 3 years of a 5-year cost-effectiveness study of the U.S. Geological Survey streamgaging network. The objective of the study is to define and document the most cost-effective means of furnishing streamflow information. In the first step of this study,...
Results of a workshop concerning ecological zonation in bottomland hardwoods
James E. Roelle, Gregor T. Auble, David B. Hamilton, Richard L. Johnson, Charles A. Segelquist
1987, Report
Under Section 404 of the Clean Water Act, the U.S. Environmental Protection Agency (EPA) has regulatory responsibilities concerning the discharge of dredged or fill material into the Nation's waters. In addition to its advisory role in the U.S. Army Corps of Engineers' permit program, EPA has a number of specific...
Status of worldwide Landsat archive
Howard W. Warriner
1987, Conference Paper, Pecora XI Symposium
In cooperation with the International Landsat community, and through the Landsat Technical Working Group (LTWG), NOAA is assembling information about the status of the Worldwide Landsat Archive. During LTWG 9, member nations agreed to participate in a survey of International Landsat data holding and of their archive experiences with...
Image restoration techniques as applied to Landsat MSS and TM data
David Meyer
1987, Pecora XI Symposium 427-427
Two factors are primarily responsible for the loss of image sharpness in processing digital Landsat images. The first factor is inherent in the data because the sensor's optics and electronics, along with other sensor elements, blur and smear the data. Digital image restoration can be used to reduce...
Results of a workshop concerning impacts of various activities on the functions of bottomland hardwoods
James E. Roelle, Gregor T. Auble, David B. Hamilton, Gerald C. Horak, Richard L. Johnson, Charles A. Segelquist
1987, Report
Under Section 404 of the Clean Water Act, the U.S. Environmental Protection Agency (EPA) has regulatory responsibilities related to the discharge of dredged or fill material into the Nation’s waters. In addition to its advisory role in the U.S. Army Corps of Engineers' permit program, EPA has a number of...
A conceptual method for monitoring locust habitat
Stephen M. Howard, Thomas R. Loveland, Donald O. Ohlen, Donald G. Moore, Kevin P. Gallo, Jonathon Olsson
1987, Pecora XI Symposium 376-377
A procedure to map and monitor vegetation conditions in near-real time was developed at the United States Geological Survey;s Earth Resources Observation Systems Data Center for use in locust control efforts. Meteorological satellite dat were acquired daily for 3 weeks in October and November 1986 over a 1.4-million-square-kilometer study...
Results of a workshop concerning assessment of the functions of bottomland hardwoods
James E. Roelle, Gregor T. Auble, David B. Hamilton, Richard L. Johnson, Charles A. Segelquist
1987, Report
The U.S. Environmental Protection Agency (EPA) is authorized under Section 404 of the Clean Water Act (33 U.S.C. 1344) to participate in the regulation of the discharge of dredged or fill material into waters of the United States. This regulatory authority is exercised in partnership with the U.S. Army Corps...
