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Articles 50761 - 50790 of 52416
Full-Text Articles in Entire DC Network
A Field Test Of Methiocarb Efficacy In Reducing Bird Damage To Michigan Blueberries, Richard A. Dolbeer, Charles R. Ingram, Allen R. Stickley Jr.
A Field Test Of Methiocarb Efficacy In Reducing Bird Damage To Michigan Blueberries, Richard A. Dolbeer, Charles R. Ingram, Allen R. Stickley Jr.
Bird Control Seminars Proceedings
Over 20,000 acres of highbush (cultivated) blueberries are grown in the United States (Johnston et al. 1969). The major producing states are Michigan, New Jersey, North Carolina, Washington, Indiana, and Oregon. Bird damage to blueberries is widespread and sometimes severe (Vaile and Moore, 1968; Pearson, 1958; Hayne and Cardinell, 1949; and Schwartze and Alcorn, 1960). Unfortunately, accurate estimates of less from birds are lacking. Non-lethal methods of controlling bird damage are essential since much of the damage is caused by popular song birds protected by Federal law. Scare devices, including exploders and electronic broadcast alarms, are often used with variable …
Proceedings: Sixth Bird Control Seminar -- Frontmatter & Contents
Proceedings: Sixth Bird Control Seminar -- Frontmatter & Contents
Bird Control Seminars Proceedings
Sponsored by the Environmental Studies Center Bowling Green State University with the assistance of Bureau of Sport Fisheries and Wildlife United States Fish and Wildlife Service and National Pest Control Association Elizabeth, New Jersey
Dr. William B. Jackson, Conference Chairman
Harold N. Cones, Jr., Conference Assistant
Harold N. Cones, Jr. and William B. Jackson, Editors
Two Tests Of The Avian Repellent, Methiocarb, In Michigan Sweet Cherry Orchards, Allen R. Stickley Jr.
Two Tests Of The Avian Repellent, Methiocarb, In Michigan Sweet Cherry Orchards, Allen R. Stickley Jr.
Bird Control Seminars Proceedings
Sweet cherries provide a major source of income to Michigan fruit growers. Annual production in Michigan during the period 1963-1971 averaged 44 million pounds, or 18 percent of the national total (Smith, et al. 1973). Bird damage to Michigan cherries is a major problem. Although no figures are available on the extent of sweet cherry damage, Stone (1973) estimated that in 1972 bird damage to Michigan tart cherries amounted to 17.4 percent of the crop. According to growers we interviewed, damage to black sweet cherries is often more severe than to tart cherries. These growers also report some damage to …
Monk Parakeet Damage To Crops In Uruguay And Its Control, Donald F. Mott
Monk Parakeet Damage To Crops In Uruguay And Its Control, Donald F. Mott
Bird Control Seminars Proceedings
The monk parakeet (Myiopsitta monachus) is considered to be a serious agricultural pest in South America. The species is resident in a sizable area from southeast Bolivia, Paraguay, and southern Brazil, through Uruguay, to central Argentina (Meyer de Schauensee, 1970: 103). Since it is hardy, adaptable, and widely sold as a cage bird, there is now concern that large enough populations may become established in the United States to cause damage to grain and fruit crops (Bump, 1971). In April 1973, I visited Uruguay under the sponsorship of the U.S. Agency for International Development (AID) to investigate patterns of agricultural …
The Effects Of Fenthion On A Nesting Population Of Quelea During Experimental Control By Aerial Spraying, Jeffrey J. Jackson, Peter O. Park
The Effects Of Fenthion On A Nesting Population Of Quelea During Experimental Control By Aerial Spraying, Jeffrey J. Jackson, Peter O. Park
Bird Control Seminars Proceedings
Quelea quelea is probably the most important avian pest of cereal crops in the sahelian areas of Africa. Its depredations reduce the cereal production of many African nations that lie within its range. To prevent this damage, bird control organizations carry out campaigns to reduce their numbers. Frequently these efforts have given poor crop protection for the cost of control because of inadequate control technology. Factors contributing to the difficulty of carrying out this kind of control are the migrations of the birds which are still incompletely understood, the inaccessability of many nesting areas, the relatively high reproductive potential of …
Where Are We? - National Scene, Richard N. Smith
Where Are We? - National Scene, Richard N. Smith
Bird Control Seminars Proceedings
When the question is asked, “Where are we?”, we must compare our progress to where we were in the past or to a goal of the future. When we do this, it is apparent that much has been accomplished during the past ten years, however, the goal of alleviating bird damage to all agricultural crops has not yet been met. We have developed methods to combat crop losses (Avitrol, scaring devices), we know more about bird population dynamics, more about bird behavior and physiology. Yet, there is much more to accomplish, for we have a number of bird crop damage …
“Where Are We?”, C. Douglas Mampe
“Where Are We?”, C. Douglas Mampe
Bird Control Seminars Proceedings
The subject I have been asked to speak on is “Where Are We?” As I assess it, I think that we, those who are using bird management agents and methods, Federal, State, and other agencies representing research, extension and regulatory, and manufacturers of agents used in bird management, are standing in the middle of a busy intersection and the light has just turned yellow. Some of us have tape across our mouths and cotton stuck in our ears. I think that we have arrived at this intersection in a number of different ways. Some of us have taken separate paths, …
Decline Of A Blackbird Population During Seven Years Of Baiting With A Chemical Frightening Agent, Jerome F. Besser, John W. De Grazio, Joseph L. Guarino
Decline Of A Blackbird Population During Seven Years Of Baiting With A Chemical Frightening Agent, Jerome F. Besser, John W. De Grazio, Joseph L. Guarino
Bird Control Seminars Proceedings
In the early 1960's, Sand Lake National Wildlife Refuge, Brown County, South Dakota, served as an assembling area for the largest late summer blackbird congregation known to us in the Norhtern Great Plains or the western portion of the Cornbelt. Approximately 4,000 acres of cattail (Typha) and reed (Phragmites) at the Refuge served as ideal roosting habitat for blackbirds. In August and September each year, postbreeding flocks of blackbirds from northern South Dakota, North Dakota, and Canada assembled to molt in these marshes and to feed on the abundant blackbird foods in the surrounding agricultural lands before migrating to wintering …
Preliminary Reconnaissance Water Quality Survey Of The Buffalo National River, R. E. Babcock, H. C. Macdonald, E. E. Dale Jr., R. L. Meyer, Joe Nix, D. G. Parker, Eugene Schmitz
Preliminary Reconnaissance Water Quality Survey Of The Buffalo National River, R. E. Babcock, H. C. Macdonald, E. E. Dale Jr., R. L. Meyer, Joe Nix, D. G. Parker, Eugene Schmitz
Arkansas Water Resources Center Technical Reports
In accordance with Contract No. CX 700030105, dated 12 February 1973, the University of Arkansas , Water Resources Resear ch Center is submitting a "Preliminary Reconnaissance Water Quality Survey of the Buffalo National River." The Water Resources Research Center of Arkansas has supplied the necessary personnel and facil ities to perform a preliminary reconnaissance survey of the Buffalo National River of Arkansas with special emphasis placed on the establishment of both permanent and temporary benchmarks for water quality sampling. Preliminary water quality samples have been collected to make those chemical, physical, and biological analyses as defined by Mr . Roland …
Press Reports, Walter A. Lawrance
Upper Androscoggin River, Walter A. Lawrance
Upper Androscoggin River, Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
Computer Sheets, Walter A. Lawrance
Lower Androscoggin River, Walter A. Lawrance
Lower Androscoggin River, Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
Water Resources News, Volume 5, No. 10, October 1973
Water Resources News, Volume 5, No. 10, October 1973
Water Current Newsletter
From the Desk of the Director
Call for Proposals - OWRR Title II Program FY 1975
Title II Grant to Bob Olson
Energy Conference
Battle on the Hill
USGS - Change of Address
National Committee on Water Quality is Founded
Reconsideration of WRC Standards Urged
House OK's $116 Million for Big Cypress
EPA Requires Payment for Sewage Users
US - Mexico Set Up $115 Million Water Desalting Project
Streams Disrupted by Army - SCS Diggings
Comptroller General Staats Requires EPA Impact Statements
Deadlines Set for Feedlot Operators
EPA Rules on Public Participation
Composted Sewage Sludge Used as Fertilizer
Bicycling Anyone? …
Sociocultural Impact Of Reservoirs On Local Government Institutions, Philip Drucker, Jerry Eugene Clark, Lesker Dianne Smith
Sociocultural Impact Of Reservoirs On Local Government Institutions, Philip Drucker, Jerry Eugene Clark, Lesker Dianne Smith
KWRRI Research Reports
This study of the probable sociocultural impact of a proposed reservoir in central Kentucky on the institutions of local governments of a community adjacent to the reservoir utilizes anthropological concepts of social values and cultural and social change as well as anthropological research techniques. Data on observed impact on the same institutions in communities adjacent to two recently completed Kentucky reservoirs permit inferences as to probable directions and extent of reservoir-related change. Specific aspects of impact considered include: effects of reduction of the county tax base due to Federal acquisition of lands, including necessity for increased severity of taxes and …
The Economic Aspects Of Water Pollution By Naval Vessels In The Port Of Charleston, South Carolina, John Edward O'Connor
The Economic Aspects Of Water Pollution By Naval Vessels In The Port Of Charleston, South Carolina, John Edward O'Connor
Economics Theses & Dissertations
No abstract provided.
Reply (A Comparison Of Satellite-Derived, Low-Level And Cirrus-Level Winds With Conventional Wind Observations), Kenneth Hubbard
Reply (A Comparison Of Satellite-Derived, Low-Level And Cirrus-Level Winds With Conventional Wind Observations), Kenneth Hubbard
School of Natural Resources: Faculty Publications
No abstract provided.
The Economic Impact Of Beaver Lake Reservoir: A Cost Benefit Study, Don R. Market
The Economic Impact Of Beaver Lake Reservoir: A Cost Benefit Study, Don R. Market
Arkansas Water Resources Center Technical Reports
This study was undertaken to determine the impact of Beaver Lake Reservoir on four contiguous Arkansas counties. Analysis of economic data indicated that lake related personal income in the area has, since the project was completed, been about 2.5 percent higher than it would have been had the lake not been constructed. The greatest impact has been associated with the counties having the largest share of the shore line. In the aggregate, however, the most significant cause of economic growth in the area has been associated with growth of manufacturing employment. Also the relative economic position of each of the …
Fisheries Report No 13 - Results Of A Biological Survey Of The Shire Of Kent, Western Australia, N. L. Mckenzie
Fisheries Report No 13 - Results Of A Biological Survey Of The Shire Of Kent, Western Australia, N. L. Mckenzie
Fisheries Research Reports
The Department of Fisheries and Fauna is responsible for the conservation of the native fauna in Western Australia. The main approach to this problem has been the creation of reserves for "The Conservation of Flora and Fauna". These reserves, known as "Wildlife Sanctuaries", are controlled by the Western Australian Wild Life Authority - a Statutory Authority serviced by the Department.
The object of the acquisition programme is to develop a reserve system which will include, as far as possible, a full and permanent cross-section of the State's native floral and faunal assemblages and, at the same time, provide for the …
Water Resources News, Volume 5, No. 9, September 1973
Water Resources News, Volume 5, No. 9, September 1973
Water Current Newsletter
From the Desk of the Director
Nebraska Institute Hosts Energy Conference
NWRRI Awarded Research Contracts
Title II Deadline Announced
Water Resources Planning Criteria Endorsed by President
Additional Title II Grants Issued
The Pros and Cons of State Environmental Centers
New Office of Research and Development
Defendant: Office of Saline Water; Plaintiff: Representative Craig Hosmer
Land Use Bill Approved
Administration Assurances Received for Rural Conservation Program
Alaska Pipeline Authorized
Charge It! Says NTIS
MRBC Creates New Position--Information Officer Named
EROS Data Dedication
New Groundwater Tracing Technique
New Strip Mining Technique
From Icebergs to Ice Cubes
Flash-Flood Warning Systems
Water Service Prices …
The Prairie Naturalist Volume 5, No.3. September 1973
The Prairie Naturalist Volume 5, No.3. September 1973
The Prairie Naturalist
PRELIMINARY LIST OF NATURAL AREAS IN NORTH DAKOTA ▪ Harold A. Kantrud
BREEDING BIRD POPULATIONS OF RIVERINE FORESTS IN EASTERN MONTANA ▪ Roger L. Kroodsma
Minimum Cost Design Of Water Distribution Systems, Don J. Wood, C. O. Charles
Minimum Cost Design Of Water Distribution Systems, Don J. Wood, C. O. Charles
KWRRI Research Reports
The objective of this study was to develop the analytical tools and procedures for minimum cost design of water distribution systems. Both analog and digital means of carrying out pressure and flow calculations were developed. As a result of this effort, digital programs for pressure and flow calculations in water distribution systems were written and have been widely distributed to practicing engineers. One procedure is based on a direct solution of the basic system equations using a linearization scheme and has several advantages over conventional techniques such as the Hardy Cross method. These include avoiding the need to initially balance …
From Portland To The Pacific: An Environmental Studies Tour Via The Wilson River Highway, John O. Dart
From Portland To The Pacific: An Environmental Studies Tour Via The Wilson River Highway, John O. Dart
Occasional Papers in Geography
Occasional Papers in Geography Publication No. 2
This field guide is the outgrowth of several years experience conducting field courses in conservation and environment and the recognition that little has been prepared for this area through which thousands of Oregonians travel each year, particularly during the summer season.
Spectral Irradiance In Nebraska Reservoirs And A New Instrument For Its Measurement, Gary D. Uphoff
Spectral Irradiance In Nebraska Reservoirs And A New Instrument For Its Measurement, Gary D. Uphoff
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Water Resources News, Volume 5, No. 8, August 1973
Water Resources News, Volume 5, No. 8, August 1973
Water Current Newsletter
From the Desk of the Director
Underground Dam Provides Water Supply
Northern Great Plains Resource Program Meetings Held
Russell Train Heads EPA
Warren Fairchild New Director of Water Resources Council
New Department Proposed
Backlog of Water Projects
National Commission Short Sighted on Water Needs
New Discharge Permits for Feedlots
Fiscal Year 1974 Title II Programs Announced
An Historical Review Of Oil Spills Along The Maine Coast 1953-1973, Edward H. Shenton
An Historical Review Of Oil Spills Along The Maine Coast 1953-1973, Edward H. Shenton
Maine Collection
An Historical Review of Oil Spills Along the Maine Coast 1953-1973
by Edward H. Shenton
Prepared for The Maine State Planning Office, Coastal Planning Group and The Research Institute of the Gulf of Maine (TRIGOM), August, 1973.
TRIGOM Publication No. 3
Contents: Introduction / A Chronology of Significant Oil Spills / A Summary of Biological Impacts / Spill Statistics / Discussion of Results / Conclusions of the Study / Recommendations for Future Research / Appendices
Enzyme And Tissue Alterations In Fishes: A Measure Of Water Quality, David E. Hinton, M. W. Kendall, J. C. Koenig
Enzyme And Tissue Alterations In Fishes: A Measure Of Water Quality, David E. Hinton, M. W. Kendall, J. C. Koenig
KWRRI Research Reports
A variety of freshwater fishes were studied by light and electron microscopy, enzyme histochemical and biochemical methods, The objective was to determine normal structure and function in specific target organs and to compare these to altered states in aquatic pollution. The basic question, "can fish tissues and enzymes serve as indicators of water quality?," was asked. Microscopic alteration in gill was indicative of copper toxicity at an exposure of 20 parts per billion, Gross and light microscopic alterations were indicative of a single exposure of channel catfish to 15 parts per million of methyl mercuric chloride (CH3HgCl). Microscopic …
A Study Of Visual Pollution From Overhead Wires And Associated Structures, Robert J. Schodorf
A Study Of Visual Pollution From Overhead Wires And Associated Structures, Robert J. Schodorf
Masters Theses
No abstract provided.
Inventory Of Lake Studies In Maine, Charles F. Wallace Jr., James M. Strunk
Inventory Of Lake Studies In Maine, Charles F. Wallace Jr., James M. Strunk
Maine Collection
Inventory of Lake Studies in Maine
By Charles F. Wallace, Jr. and James M. Strunk
State Planning Office, Water Resources Planning Division, July 1973.
"Printed under Appropriation Number 4248.5 and financially assisted by planning grants from the United States Water Resources Council Title III funds."
Contents: Introduction / Investigating Agencies / Federal Agencies / State Agencies / Regional Planning Commissions and Economic Development Districts / Maine Colleges and Universities / Private / Other Private / Other / Appendices
Process Control Of Activated Sludge Treatment, Richard I. Kermode, Robert W. J. Brett, Kenneth A. Debelak, John J. Davis
Process Control Of Activated Sludge Treatment, Richard I. Kermode, Robert W. J. Brett, Kenneth A. Debelak, John J. Davis
KWRRI Research Reports
General feed forward controllers, conforming to standard control modes, have been derived for an activated sludge process. The analysis indicated that the appropriate controllers are proportional control with measurement of substrate flow rate, and derivative control with measurement of inlet substrate concentration, and manipulation of the rate of return sludge by both controllers.
The performance of these controllers was tested by computer simulation of five dynamic aerator models with and without sludge storage, and with two settling basin models. In all cases significant reduction of the maximum exit substrate concentration was achieved. Additional improvement resulted from the use of sludge …