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Page 5609, results 140201 - 140225

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Not all publications have extents, not all extents are completely accurate
Ground water resources of Lee County
Donivan L. Gordon
1980, Report
Approximately 8.0 percent of the water used in Lee County comes from underground sources. It is estimated that the use of ground water in the county currently approaches 2.8 billion gallons per year. For comparison, this amount would provide each resident with 172 gallons of water a day during a...
Water resources planning under the Fish and Wildlife Coordination Act
Karl F. Stutzman
1980, FWS/OBS 80/44
This paper briefly discusses the more significant provisions of the Fish and Wildlife Coordination Act (1958). It covers pertinent aspects of legislative history, the development and current status (April 1980) of certain policies relevant to administering the Act, and other matters. It is directed primarily to practicing fish and wildlife...
Ecological observations on an East African bat community
Thomas J. O'Shea, Terry A. Vaughan
1980, Mammalia (44) 485-496
The structure and ecology of bat faunas is a subject of interest to mammalogists (Findley, 1976; Wilson, 1973). Syntopic African bat communities, however, have received little study in comparison with neotropical faunas (cf. Fleming et al., 1972; LaVal and Fitch, 1977; McNab, 1971). Verschuren (1957) presented natural history...
The role of remote sensing in the Department of Interior
Allen H. Watkins
1980, Conference Paper, Western Regional Remote Sensing Conference proceedings
Since its creation in 1849, USDI has faced the challenging mission of being custodian of the Nation's natural resources. USDI is directly responsible for management of 30 % of the United State's land area, including administration of more than 600 million acres of Federal land and 300 million acres of...
Effects of recreational river traffic on nest defense by longear sunfish
Gordon Mueller
1980, Transactions of the American Fisheries Society (109) 248-251
An underwater camera system was designed to record the behavior of male nest-guarding longear sunfish (Lepomis megalotus) during periods of boating activity. Boats traveling at slow speeds near nests usually drove males from their nests, increasing the likelihood of egg predation. Boats moving at higher speeds or further from nests...
Some comments on Anderson and Pospahala's correction of bias in line transect sampling
David R. Anderson, K.P. Burnham, B.R. Chain
1980, Biometrical Journal (22) 513-524
ANDERSON and POSPAHALA (1970) investigated the estimation of wildlife population size using the belt or line transect sampling method and devised a correction for bias, thus leading to an estimator with interesting characteristics. This work was given a uniform mathematical framework in BURNHAM and ANDERSON (1976). In this paper we...
An assessment of Landsat data acquisition history on identification and area estimation of corn and soybeans
M.A. Hixon, M. E. Bauer, Donna K. Scholz
1980, Report, LARS technical reports
During the past decade, numerous studies have demonstrated the potential of satellite remote sensing for providing accurate and timely crop area information. This study assessed the impact of Landsat data acquisition history on classification and area estimation accuracy of corn and soybeans.Multitemporally registered Landsat MSS data from four acquisitions during...
Ecology of a Maryland population of black rat snakes (Elaphe o. obsoleta)
Lucille F. Stickel, William H. Stickel, F. C. Schmid
1980, American Midland Naturalist (103) 1-14
Behavior, growth and age of black rat snakes under natural conditions were investigated by mark-recapture methods at the Patuxent Wildlife Research Center for 22 years (1942-1963), with limited observations for 13 more years (1964-1976). Over the 35-year period, 330 snakes were recorded a total of 704 times. Individual home ranges...
Introduction to the U.S. Geological Survey's EROS Data Center Sioux Falls, South Dakota
L.A. Braconnier, P.J. Wiepking
1980, Report
The EROS Data Center is a part of the Earth Resources Observation Systems (EROS) Office of the Department of the Interior and is managed by the U.S. Geological Survey. It is the national clearinghouse for the processing and dissemination of spacecraft- and aircraft-acquired images and photographs and electronic data on...
Topographic maps: Tools for planning
George A. Kaufman
1980, Report
Topographic maps are a detailed record of a land area, giving geographic positions and elevations for both natural and man-made features. They show the shape of the land the mountains, valleys, and plains by means of brown contour lines (lines of equal elevation above sea level). In steep mountainous areas,...
Steps to the moon
Alvin E. Dale, William L. Newman
1980, Report
The exploration of the Solar System is well underway. What is learned contributes to our fund of knowledge about the nature of the Earth, the processes that formed it, and the forces that controlled its evolution....