The impact of grazing on plant fractal architecture and fitness of a mediterranean shrub (Anthyllis cytisoides L.)
J. Escos, C.L. Alados, J.M. Emlen
1997, Functional Ecology (11) 66-78
1. We examined natural grazing by livestock (sheep and goats) on Albaida Anthyllis cytisoides L. with the aim of determining whether variation in the allometric relationships between plant parts provides a sensitive indicator of the impact of grazing.2. The intra-individual variation in translatory symmetry with scale and increased complexity of...
Diagnosing the flood of 1997 in San Francisco Bay with observations and model results
Noah Knowles, Daniel Cayan, Reginald J. Uncles, Lynn Ingram, Dave Peterson
1997, Interagency Ecological Program Newsletter 28-31
No abstract available. ...
Regionalized loads of sediment and phosphorus to lakes Michigan and Superior—high flow and long-term average
Dale M. Robertson
1997, Journal of Great Lakes Research (23) 416-439
Daily loads of suspended sediment and total phosphorus for the 10-year, 1-day design high flow and average of the 16-year period (1975 to 1990) were computed for 18 well-monitored tributaries to Lake Michigan and Lake Superior by use of constituent-transport models. The loads from these 18 reference tributaries were used...
A science-based, watershed strategy to support effective remediation of abandoned mine lands
Herbert T. Buxton, David A. Nimick, Paul Von Guerard, Stan E. Church, Ann G. Frazier, John R. Gray, Bruce R. Lipin, Sherman P. Marsh, Daniel F. Woodward, Briant A. Kimball, Susan E. Finger, Lee S. Ischinger, John C. Fordham, Martha S. Power, Christine M. Bunch, John W. Jones
1997, Conference Paper, Proceedings of the Fourth International Conference on Acid Rock Drainage, Vancouver, B.C., Canada, May 31-June 6, 1997
A U.S. Geological Survey Abandoned Mine Lands Initiative will develop a strategy for gathering and communicating the scientific information needed to formulate effective and cost-efficient remediation of abandoned mine lands. A watershed approach will identify, characterize, and remediate contaminated sites that have the most profound effect on water and ecosystem...
Coordination and standardization of federal sedimentation activities
G. Douglas Glysson, John R. Gray
1997, Conference Paper, Expanding sediment research capabilities in today's USGS: proceedings of the U.S. Geological Survey (USGS) Sediment Workshop
In August 1964, the Bureau of the Budget issued Circular A-67 to set forth guidelines for the coordination of water-data acquisition activities throughout the Federal government. The U.S. Department of the Interior was assigned the task of implementing Circular A-67, which in turn redelegated this responsibility to the U.S. Geological...
Overview of USGS sediment research and monitoring capabilities
J. R. Gray, S.J. Williams, S.E. Finger, J. W. Jones
1997, Conference Paper, Expanding sediment research capabilities in today's USGS: proceedings of the U.S. Geological Survey (USGS) Sediment Workshop
For more than a century the USGS, as its name implies, has been the leading federal earth science research organization for the Nation. With the recent addition to the USGS of the National Biological Service in October 1996, as the Biological Resources Division, the mission of the USGS has broadened...
Development of the copper and molybdenum industries and the Armenian economy
A.R. Bond, R.M. Levine
1997, Post-Soviet Geography and Economics (38) 105-120
Production of copper and molybdenum in Armenia is examined, with special emphasis on the location of major deposits, former and proposed future centers of processing, and contribution of metals exports to the country's foreign trade revenues. Particular emphasis is placed on the impacts on these industries of the disruption of...
Exploration
D.R. Wilburn
1997, Mining Engineering (49) 35-43
This summary of international nonfuel mineral exploration activities for 1996 uses available data from literature, industry, and US Geological Survey (USGS) specialists. Data on exploration budgets by region and commodity are reported, significant mineral discoveries and exploration target areas are identified and government programs affecting the mineral exploration industry are...
Fluorspar
M. Miller
1997, Mining Engineering (49) 24-25
Developments in the area of fluorspar in 1996 are reviewed. There was no reported mine production of fluorspar the U.S. in 1996, so domestic fluorspar requirements were satisfied by imports, sales from the National Defense Stockpile, and small amounts of synthetic fluorspar produced from industrial waste. The Defence Logistics Agency,...
Geologic age: using radioactive decay to determine geologic age
U.S. Geological Survey
1997, Report
At the close of the 18th century, the haze of fantasy and mysticism that tended to obscure the true nature of the Earth was being swept away. Careful studies by scientists showed that rocks had diverse origins. Some rock layers, containing clearly identifiable fossil remains of fish and other forms...
Mud fossils
U.S. Geological Survey
1997, Report
At the close of the 18th century, the haze of fantasy and mysticism that tended to obscure the true nature of the Earth was being swept away. Careful studies by scientists showed that rocks had diverse origins. Some rock layers, containing clearly identifiable fossil remains of fish and other forms...
Volcanoes!
Water Resources Division, U.S. Geological Survey
1997, Report
Volcanoes is an interdisciplinary set of materials for grades 4-8. Through the story of the 1980 eruption of Mount St. Helens, students will answer fundamental questions about volcanoes: "What is a volcano?" "Where do volcanoes occur and why?" "What are the effects of volcanoes on the Earth system?" "What are...
Gazetteer of drainage areas of Connecticut
Thomas Nosal
1997, Connecticut Water Resources Bulletin 45
Delineating paleochannels using shallow seismic reflection
R. D. Miller, J. Xia
1997, Leading Edge (Tulsa, OK) (16) 1671-1674
Discontinuous confining units beneath industrialized areas provide effective pathways for contaminants to move from one aquifer to another within Atlantic Coastal Plain sediments. Shallow seismic reflection can provide coherent high resolution images of thin, alternating sand and clay sequences in many shallow water table environments — useful, cost‐effective information which...
Pesticides in surface waters: distribution, trends, and governing factors
Steven J. Larson, Paul D. Capel, Michael Majewski
1997, Book
Pesticde use in agriculture and non-agriculture settings has increased dramatically over the last several decades. Concern about adverse effects on the environment and human health has spurred an enormous amount of research into their environmental behavior and fate. Pesticides in Surface Waters presents a comprehensive summary of this research. This...
Pesticides in ground water: distribution, trends, and governing factors
Jack Barbash, Elizabeth A. Resek
1997, Book
A comprehensive review of published information on the distribution and behavior of pesticides and their transformation products in ground water indicates that pesticides from every chemical class have been detected in ground waters of the United States. Many of these compounds are commonly present at low concentrations in ground water...
Chloride cells and impaired osmoregulation in juvenile American shad
Joseph D. Zydlewski, S. D. McCormick
1997, American Zoologist (37) 85A-85A
No abstract available....
Changes in the growth hormone/insulin-like growth factor 1 axis during smolting of Altantic salmon the wild
S. D. McCormick, Bjorn Thrandur Bjornsson, S. Moriyama, C. Duan
1997, American Zoologist (37) 157A-157A
No abstract available....
Liquid chromatographic method for determining the concentration of bisazir in water
Ronald J. Scholefield, Karen S. Slaght, John L. Allen
1997, Journal of AOAC International (80) 1111-1116
Barrier dams, traps, and lampricides are the techniques currently used by the Great Lakes Fishery Commission to control sea lampreys {Petromyzon marinug) in the Great Lakes. To augment these control techniques, a sterile-male-release research program was initiated at the Lake Huron Biological Station. Male sea lampreys were sterilized by...
Virulence of Renibacterium salmoninarum to salmonids
C. E. Starliper, D. R. Smith, T. Shatzer
1997, Journal of Aquatic Animal Health (9) 1-7
Virulence of Renibacterium salmoninarum isolates representing five origins was evaluated in eight salmonid hosts; four origins were of Lake Michigan and the fifth was of the Pacific Northwest. The species type strain, ATCC (American Type Culture Collection) 33209, was also included. Each isolate was grown in a kidney disease medium...
The severity of an earthquake
Water Resources Division, U.S. Geological Survey
1997, Report
The severity of an earthquake can be expressed in terms of both intensity and magnitude. However, the two terms are quite different, and they are often confused. Intensity is based on the observed effects of ground shaking on people, buildings, and natural features. It varies from place to place within...
Wisconsin: A summary of cooperative water-resources investigations 1997
Water Resources Division, U.S. Geological Survey, Wisconsin Department of Natural Resources
1997, Report
The objectives of this study are to provide continuous discharge records for selected rivers at specific sites to supply the needs for regulation, analytical studies, definition of statistical properties, trends analysis, determination of the occurrence, and distribution of water in streams for planning. The project is also designed to determine...
A monoclonal antibody to inclusion body disease of cranes virus enabling specific immunohistochemistry and competitive ELISA
G.J. Letchworth, J.R. Fishel, W. R. Hansen
1997, Avian Diseases (41) 808-816
Inclusion body disease of cranes (IBDC) herpesvirus kills some infected cranes and persists in convalescent animals. To enable further study and rapid identification of carrier animals, we developed a monoclonal antibody (MAb) to IBDC virus and used it in immunohistochemistry and a competitive...
Liquid chromatographic determination of chloramine-T and its primary degradation product, p-toluenesulfonamide, in water
Verdel K. Dawson, Ruth A. Davis
1997, Journal of AOAC International (80) 316-318
N-sodium-N-chloro-ρ-toiuenesulfonamide (chloramine-T) effectively controls bacterial gill disease (BGD) in cultured fishes. BGD, a common disease of hatchery-reared salmonids, causes more fish losses than any other disease among these species. This study describes a liquid chromatographic (LC) method that is capable of direct, simultaneous analysis of chloramine-T and its primary...
Proceedings of the third biennial conference of research on the Colorado Plateau
Elena T. Deshler
Charles van Riper III, editor(s)
1997, NPS/NRNAU/NRTP 97-12
The papers in this volume are contributions from federal, state, and private sector researchers, who have come together to share scientific information with land managers on the Colorado Plateau. This Proceedings is the third in a series of publications that focuses on providing information to land managers on baseline scientific...
