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The Role Of The Wildlife Refuge In Relief Of Vertebrate Pest Damage In Agriculture, John B. Cowan

Vertebrate Pest Conference Proceedings: 4th (1970)

Wildlife Refuges in the upper Sacramento Valley of California carry out a very significant role in the relief of wildlife problems to agriculture. The degree and diversity of vertebrate pest control effort by these refuges vary with local conditions and with environmental and budgetary limitations. Both the California Department of Fish and Game and the U. S. Fish and Wildlife Service consider the relief of crop damage to agriculture one of their most important functions. This is demonstrated by existing programs at the Sacramento, Delevan, Colusa and Sutter National Wildlife Refuges and the California Fish and Game Gray Lodge Wildlife …

Reproduction Inhibitors For Bird Control, M. R. Woulfe

Vertebrate Pest Conference Proceedings: 4th (1970)

Reproduction inhibitors are intended to maintain or control a population at a desired level; toxicants aim at elimination of the population. Azocosterol hydrochloride (SC-12937; 20,25-diazocholestenol dihydrochloride) is a long acting inhibitor of ovulation in the pigeon (Columba liyia) by interfering with cholesterol synthesis and egg yolk formation. Corn impregnated with SC-12937 at the 0.1% level by weight and fed for 10 days has been found to inhibit or diminish reproduction for 5-6 months. Population turnover rate, mortality and longevity of the feral urban pigeon are also discussed.

House Finch (Linnet) Control In California, Thomas K. Palmer

Vertebrate Pest Conference Proceedings: 4th (1970)

The house finch or linnet, Carpodacus mexicanus frontalis (Say) is a protected migratory nongame bird indigenous to California and found abundantly in all but the northern and mountainous areas. These finches attack more than twenty different crops and damage is demonstrated by fruit pecks, seed removal, and disbudding. When house finches cause agricultural damage control measures must be carried out under the general supervision of a county agricultural commissioner. Control practices involve the use of toxic baits, trap-decoy stations, and bio-acoustical devices. Most importantly, these control methods have been demonstrated to be safe, selective, and successful when employed by persons …

Current Work On Bird Hazards To Aircraft, Victor E. F. Solman

Vertebrate Pest Conference Proceedings: 4th (1970)

Collisions between birds and aircraft have caused loss of human life and millions of dollars worth of property damage. The advent of even larger planes may reduce airframe damage, but it seems doubtful that engine damage will be significantly reduced. Dealing with the problem biologically, involves combating the hazards caused both by birds on or near the ground at airfields, and by birds on mass migrations at altitudes up to several thousand feet above ground. Airports can be designed or altered to minimize their attraction to birds. The chance arrival of a flock of birds must be treated as an …

The Organisation Of Rabbit Control (Oryctolagus Cuniculus) In Western Australia, A. R. Tomlinson, C. D. Gooding

Vertebrate Pest Conference Proceedings: 4th (1970)

ABSTRACT: Under Western Australian legislation, landholders have an obligation to control rabbits on their properties; local authorities the responsibility to supervise their work whilst the Agriculture Protection Board has a Statewide supervisory and co-ordination role. Prior to 1950 (when the Agriculture Protection Board was formed) the central role was in the hands of a Government department which, through lack of staff and money was unable to provide adequate supervision, and rabbits were in plague proportions. Since 1950, the Board has actively engaged in a vigorous policy aimed at tighter control and supervision. To enable this, the Board has entered into …

Rodenticides - Problems And Current Research, F. P. Rowe, J. H. Greaves, R. Redfern, A. D. Martin

Vertebrate Pest Conference Proceedings: 4th (1970)

Regarded from both the economic and health aspects, the control of rodents is a pressing world wide problem. Continued improvements in food storage facilities, crop husbandry and environmental control are likely to do much in the long-term to help reduce rodent populations and damage. Looking ahead again, it is possible that biological control methods involving for example the use of reproduction inhibitors or rodent predators or diseases may ultimately be developed for rodent control purposes. In the immediate future however it is likely that rodent control operations will continue to be based on the use of rodenticides.

Some Wildflowers Of Western Australia, C. F. H. Jenkins, A. S. George

Bulletins - 3000 - 3999

MUCH recent discussion on conservation has centred around the importance of wild flower reserves and the need for protecting one of thci State's most important tourist attractions. Although less important to visitors than the flowers, many of our wild animals hold equal interest for nature lovers and scientists, and they also need protection.

ALTHOUGH the brilliance and diversity of West Australian wildflowers are widely appreci­ated, the localities where they can best be observed in their natural state are not so well known.

In this article a brief outline is given of the more important districts in the south western part …

Algal Growth And Decomposition: Effects On Water Quality, Edward G. Foree, John S. Tapp Jr.

KWRRI Research Reports

The chemical composition of algae grown in batch culture depends mainly on environmental conditions, nutrient availability, presence of predators, cell age, and species. The effects of nutrient availability and cell age on the composition of three unialgal cultures (algae + bacteria) and one hetergeneous culture (algae + bacteria + microscopic animals) were evaluated. The cultures were grown in batch culture under both nutrient-abundant and nutrient deficient conditions and the changes in compositions were observed. Luxurious uptake where nutrients are incorporated into cellular protoplasm at levels greater than those necessary for growth, and super-luxurious uptake, where some nutrients are stored rather …

Water Resources News, Volume 2, No. 3, March 1970

Water Current Newsletter

NWRRI Announces Approval of Matching Grant Proposals
National Environmental Policy Act of 1969 - Landmark Achievement
Chairman of Environmental Quality Council Named by Nixon
River System Engineering - Summer Short Course
Plan to Eliminate Thermal Pollution - Result in Navigation Channels?
Executive Director Appointed to Water Resources Council
Ecologic Aspects of Weather Modification
Ash Commission Reports on Civil Works Functions of the Corps
Hail Suppresion, Next Major Thrust of Weather Modification Research Program
USDA to Fight Water and Soil Pollution from Animal Wastes
Major Clean-Up Proposals Made by Nixon
NSF to Redirect Its Efforts
USGS to Lead Research in Underground …

The Prairie Naturalist Volume 2, No. 1. March, 1970

The Prairie Naturalist

EDITORIAL: Speaking of Ecologists ▪ Paul B. Kannowski

NEEDED: AN ETHICAL BASIS FOR ENVIRONMENTAL POLICY ▪ Gordon L. Iseminger

THE POPULATION PARADOX ▪ Gary L. Pearson

THE ENVIRONMENTAL CRISIS—A CALL TO ACTION ▪ Glen A. Sherwood

NORTH DAKOTA—1970 ▪ Philip B. Aus

Water Resources News, Volume 2, No. 2, February 1970

Water Current Newsletter

Evaporation Reduction
National Science Foundation Announces a New Program
The Universities and Environmental Quality
Guidelines Will Be Issued for Federal Programs Affecting the Environment
Conservation and the Environment - Big Political Issue?
National Land Use Policy Act of 1970
The Safety of Community Water Supply Systems
River System Engineering - Summer Short Course
OWRR Holds Fifth Annual Water Resources Research Conference
Environmental Health Service Organized at HEW
Algae-Eating Fish - A Possible Way to Control Eutrophication?
Resources for the Future Considerse Non-Monetary Benefits for Conservation Goals
Agreement to Require Discharges of Wastes Into the Nation's Waterways to Reveal Their Pollution …

Effects Of Abatement Of Domestic Sewage Pollution On The Benthos, Volumes Of Zooplankton, And The Fouling Organisms Of Biscayne Bay, Florida, J. Kneeland Mcnulty

Studies in Tropical Oceanography

No abstract provided.

Concentration Of Co, In The Air Above A Sugar Beet Field, K.W. Brown, Norman J. Rosenberg

School of Natural Resources: Faculty Publications

The concentration of CO, in air sampled above a sugar beet crop was measured during July, August, and early September 1966 at Scottsbluff, Nebr. During July the mean daytime concentration decreased from 310 ppm to 283 ppm as the leaf area index increased from 0.8 to 4.0. Only small deviations from the mean daytime Concentration of 283 ppm occurred during the remainder of the season. The mean nocturnal concentration during this period was 320 ppm and was more variable than the daytime concentration. The daily amplitude of concentration averaged 70 ppm and was as great at times as 100 ppm. …

Microbiological Specialists' Meeting New Mexico State University, Las Cruces, New Mexico April 3-4, 1970, U.S. International Biological Program

Meetings

No abstract provided.

Attendance Report: Small Mammal Workshop, Clive D. Jorgensen

Memorandum

No abstract provided.

Distribution Of Trace Elements In Impoundments, J. Nix

Arkansas Water Resources Center Technical Reports

An investigation of the trace element content of two impoundments on the Ouachita River, Arkansas, was conducted. Common water quality parameters were followed in the reservoirs in an effort to determine the factors which were influencing the trace element concentration. The following trace metals were determined in both the particulate phase (retained by a 0.45 micron filter) and the soluble phase (passed by a 0.45 micron filter): iron, manganese, copper, cobalt, nickel, lead, chromium, and zinc. These measurements were made periodically for one and a half years. Results indicate that the chemical regime of the impoundments which were studied was …

Water Resources Planning Study For Arkansas And Oklahoma, L. R. Heiple, H. M. Jeffus

Arkansas Water Resources Center Technical Reports

The purpose of this study is to make an appraisal of the local water resources in the Arkansas River Basin common to the two States of Arkansas and Oklahoma as defined by the Arkansas-Oklahoma Compact Committee (hereinafter referred to as "the Compact Committee"). A review, analysis, and correlation has been made of hydrologic data previously collected by others. Consideration is given to the evaluation at selected sites of the storage and potential use of existing water sources.

Aquatic Specialists' Meeting Idaho State University, Pocatello, Idaho September 9-10, 1970, U.S. International Biological Program

Meetings

No abstract provided.

Abiotic Specialists' Meeting Tucson, Arizona March 6-7, 1970, U.S. International Biological Program

Meetings

No abstract provided.

Plant Observations In Validation Studies, David W. Goodall

Memorandum

No abstract provided.

U.S. Research On Whales, Robert L. Brownell Jr.

United States Department of Commerce: Staff Publications

The United States is a member of the International Whaling Commission (IWC) and thus shares responsibility with 13 other countries for conducting research on whales. In 1958, our research program was moved from La Jolla, California, to the Marine Mammal Biological Laboratory in Seattle under the direction of the Bureau of Commercial Fisheries (BCF), Department of Interior. This move consolidated the scientific staff, libraries, and facilities used for marine mammal research. The legislation that created the Bureau made this organization the one responsible for decisions regarding the use of whale resources.

The Standing Committee on Marine Mammals of the American …

Part I - Controlling The Soil Moisture Environment Of Transpiring Plants, Part Ii - Prediction Of Leaf Temperature Under Natural Atmospheric Conditions, Charles T. Haan, Billy J. Barfield, Robert Edling

KWRRI Research Reports

Part I

A technique for controlling the soil moisture potential in the root zone of transpiring plants was developed. The method uses the principles of unsaturated flow through a porous media to develop the desired moisture potential. In the case of non-steady state transpiration, the maximum possible fluctuation in the soil moisture potential can be determined by the techniques presented.

Part II

Two implicit leaf temperature prediction equations were derived from the energy balance approach. The equations define sensible and latent heat transfer from a plant population as a two step process:

1. Transfer between the plant leaf and the canopy …

Effects Of Aldrin On Young Pen-Reared Pheasants, Joseph Edward Hall

Electronic Theses and Dissertations

Three levels of encapsulated aldrin (.05, 1.0, and 1.5 mg) were administered weekly to young pen-reared pheasants from 5 to 11 weeks of age to determine effects on growth and residue levels in brain, feathers, and whole body during and after treatment. During treatment, birds were weighed weekly. After treatment ceased, birds were weighed every other week until 21 weeks of ---. Analysis of residues was by electron capture gas chromatography. Growth of pheasants --- 5 to 21 weeks of age was depressed (P 0.01) by administration of aldrin dosages of 1.0 to 1.5 mg. Aldrin values in the brain …

Anticipations Of Change: A Socio-Economic Description Of A Kentucky County Before Reservoir Construction, Charles Robert Smith

KWRRI Research Reports

In the past the construction of large reservoirs in the United States has been evaluated largely in terms of the economic benefit they bring to the area where they are constructed and to the nation. Where human populations are involved, however, a host of social changes occur, many of which fundamentally alter the way of life of a people.

This report is part of a larger study which aims at analyzing the social costs and benefits of reservoir construction. The project is long range in that studies are to be carried out before, during, and after construction. This report concentrates …

Evaluation Of The Social Impact Of Reservoir Construction On The Residential Plans Of Displaced Persons In Kentucky And Ohio, Richard L. Ludtke, Rabel J. Burdge

KWRRI Research Reports

The states of Kentucky and Ohio have numerous reservoir projects at various stages of planning and construction. Each of the projects produces substantial social impact for the residents of the area and particularly for those persons affected by a loss of property and homes. This impact is not uniform in that people respond differently to displacement and the methods of adjusting relocation are known to differ among people.

This research was initiated to develop and test a model for explaining migration under such conditions. The model includes a consideration of people's potential for transferring existing statuses to new residences, the …

Pheasant Use And Waterfowl Production On State And Private Lands, Charles R. Elliott

Electronic Theses and Dissertations

Ring-necked pheasant (Phasianus colchicus) use on state-owned game production areas was compared to that on privately-owned areas in east-central South Dakota. Four 80-acre and four 160-acre tracts of state lands were paired with private areas of the same size having the same amount of wetland and were selected from aerial photographs taken before the purchase of the state-owned areas. None of four nests were successful on private areas in 1968 and three of five nests were successful on game production areas. In 1969 three of 19 nests were successful on private areas and 10 of 21 nests were successful on …

Feeding Of Black Bullheads Ictalurus Melas (Rafinesque) In Experimental Cages, Kay R. Hill

Electronic Theses and Dissertations

Black bullheads, Ictalurus melas (Rafinesque), were grown experimentally from July 25, 1969, through October 21, 1969. The fish, collected from Lake Poinsett, were grown in five cages each with a water volume of 2.6 m³ and five cages each with a volume of 3.86 m³. The larger cages contained nearly 60 percent of the total 323 m³ of water volume in the cages. No significant difference in fish growth between the two cage sizes were observed. Fish in large cages gained 204.4 Kg and were fed 1550.8 Kg of food, for a food conversion of 6.60. Fish in smaller cages …

Systems Analysis Of Hydrologic Problems, J. Paul Riley, Diana Averett

Reports

Introduction: Increasing national and international interest in water resources in recent years has stimulated much new activity and progress in hydrology. It is now generally recognized that the science of hydrology is basic to an understanding of water resources problems and to planning for water resources development. Accompanying this demand upon the science of hydrology is an urgent need for improved education at the university level. In resopnse to this need for improved education, the First International Seminar for Hydrology Professors was held at Urbana, Illinois, in July 1969. The Second International Seminar was held at Logan, Utah, during August …

Attitudes For Environmental Planning In The 1970'S, Dean F. Peterson

Reports

No abstract provided.

Bacterial Absorption On Soils--Thermodynamics, David W. Hendricks, Frederick J. Post, Deorao R. Khairnar, Jerome J. Jurinak

Reports

Laboratory studies on the adsorption of bacteria onto soils and activated carbon were undertaken to evaluate the role of the process in removal of bacteria from groundwater. It was hypothesized that removal of bacteria from water passing through soil would be primarily due to adsorption in which case the bacteria would behave in a manner similar to colloidal particles or chemical molecules. The basic kinetics of uptake of Staphylococcus aureus were determined on activated carbon, a highly adsorbing material chemically speaking. Once the technique was worked out and adsorption demonstrated to take place, sand, clay, and Mendon silt loam were …