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Analog Computer Solution Of The Unsteady Flow Equations And Its Use In Modeling The Surface Runoff Process, Utah Water Research Laboratory

Reports

The flow of water on a watershed is usually unsteady and spatially varied, but can be adequately portrayed by the equations of momentum and continuity, commonly referred to as the unsteady flow equations. Because these equations are quasi-linear, hyperbolic, partial differential equations, they are not easily amenable to solution. Analog computer model~ of surface runoff generally have been based on simplified forms of these equations. As an improvement of those models, an analog computer solution is presented here for the unsteady flow equations. The solution involves the conversion of the partial differential equations in to a differential-difference system, and a …

The Prairie Naturalist Volume 1, No.4. December 1969

The Prairie Naturalist

EDITORIAL: Restoring Beauty to the Human Environment ▪ Paul B. Kannowski

A REQUIEM FOR THE PRAIRIE ▪ Hugh H. Iltis

BIRDING IN MY BACK YARD ▪ Mrs. George A. Anderson

OCCURRENCE OF THE CECROPIA AND ROCKY MOUNTAIN SILK MOTHS IN SOUTHWESTERN NORTH DAKOTA ▪ James Oberfoell

Mill Pollution, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Pool Studies, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Press Reports, Walter Lawrance

Walter Lawrance Papers

No abstract provided.

Biological Studies Of Selected Reaches And Tributaries Of The Colorado River, Nelson Thomas, Federal Water Pollution Control Administration

Publications (WR)

This report fulfills the request of the Colorado River Basin Project, Denver, Colorado, to determine the effects of municipal and industrial wastes on the aquatic life in selected waters of the Colorado River Basin. These studies were conducted with the assistance of personnel from the Colorado River Basin Project.

Federal Labeling Standards For Economic Poisons, Paul M. Ochs

Bird Control Seminars Proceedings

The U.S. Department of Agriculture, Pesticide Regulation Division, has the responsibility of administering the Federal Insecticide, Fungicide and Rodenticide Act of 1947 as amended. The Act encompasses any substance or mixture of substances intended for "preventing, destroying, repelling or mitigating any insects, rodents or any other vertebrate animals, nematodes, fungi, weeds, and any other forms of plants or animal life or viruses," except viruses on or in living man or other animals. These products must be registered if they are to be marketed or shipped in interstate commerce, imported or exported, or sold in the District of Columbia or any …

Activities Of The Faa Inter-Agency Bird Hazard Committee, John L. Seubert

Bird Control Seminars Proceedings

The Federal Aviation Administration established an Inter-Agency Bird Hazard Committee in September 1966 in recognition of the increased hazard of birds to aviation. This inter-agency group was formed to obtain and consolidate informa-tion about the bird-aircraft problem and to develop ways of lessening collisions between birds and aircraft. The committee includes representatives from the Fed-eral Aviation Administration, Civil Aeronautics Board, Department of Health, Edu-cation & Welfare, National Aeronautics & Space Administration, U.S. Department of the Interior, U.S. Air Force, U.S. Army, and the U.S. Navy. The activities of the committee have been limited primarily to an advisory role. It is …

Status Of Starlicide, Philip J. Spear

Bird Control Seminars Proceedings

Starlicide is described as a slow-acting avicide for the control of starlings and blackbirds around livestock and poultry operations. The active ingredient is 3 -chloro-p-toluidine hydrochloride which has been identified by the Denver Re-search Center of the U.S. Fish and Wildlife Service as DRC-1339. A casual review of information about this bird control material suggests the following paradoxes: The use of the chemical in bird control appears to be covered by a patent, but the licensor wishes to remain anonymous. The licensee, which produces and sells the commercial material, seems unwilling to discuss the product. Let me hasten to point …

Significance And Control Of Fungal Diseases Related To Bird Roosts, Robert J. Weeks

Bird Control Seminars Proceedings

Certain fungi have been found frequently as saprophytes in areas containing large amounts of bird excreta. These fungi have the ability to survive, multiply, and cause disease once they have entered a host. Two of these are Crypto-coccus neoformans and Histoplasma capsulatum. Both may easily become airborne and be disseminated throughout an area by the prevailing winds. C. neo-formans is commonly isolated from the excreta of pigeon habitats, and in turn has been associated with clinical cases of cryptococcosis, while blackbird roosts, harboring H. capsulatum, have been responsible for several outbreaks of histoplasmosis. When either of these fungi have become …

Bird Control Under A State Fish And Game Permit System, James Shepard

Bird Control Seminars Proceedings

I guess the impetus for laws in our state, really was the action of the city of Boston in 1963, when the Parks and Recreation Department felt that it was time to do something about massive populations of pigeons on the Boston Commons and in the city. The Parks Department came to our agency to find out what could be done. We immediately found as a result of a reorganization and recodification of the laws some 20 years before, that it was illegal to use or apply poisons for the purpose of killing any birds or mammals in the Commonwealth …

Cooperation Between Pest Control Operators And Regulatory Authorities, Robert M. Russell

Bird Control Seminars Proceedings

When Dr. Jackson called me to speak on the rights of the individual I told him he probably had the wrong person because I am an individual and I believe my company is an organization very prone to say "what is, is and you've got to go on with it." If I'd have heard some of the talks here today before he called me, I wouldn't be here at all, because I'm not sure what individual rights there are left! So let me change this thing around a little bit and state that instead of speaking of the rights of …

Use Of Strychnine Treated Grain For Industrial Pigeon Control, Joseph Watkins

Bird Control Seminars Proceedings

The pest bird involved in nearly 100% of our jobs has been the pigeon. We don't do killing in residential areas, nor have we done killing in downtown areas. All of our work has been confined to industrial plants and commercial buildings where strychnine, and we have used other methods that can kill the birds. In these plants we have had some problems with industrial or labor re-lations. These have been coped with by working with the union, with the labor relation people, and as high up as purchasing level. First of all we think that with strychnine if we …

Costs Of New Materials: The Manufacturer's Dilemma, Dan Macdougall

Bird Control Seminars Proceedings

I thought it was possible that some of you might not be acquainted with some of the frustrations which are involved in jousting with the bureaucracy in Washington. So I thought I would review that situation very briefly for you, particularly in regard to the compound Queletox. We will confess that we had some real qualms about accepting this material for control as a bird toxicant initially. And the reasons we were concerned about this were because the compound was being used in other areas as an agricultural chemical. It was registered for mosquito control, and it was being used …

New Materials For Bird Control, John W. Degrazio, Philip J. Spear

Bird Control Seminars Proceedings

A variety of methods is necessary to solve the many bird damage problems that occur in agriculture and other fields of interest. It is apparent that no one method can be used to provide answers for all damage situations; each problem and problem area is unique and requires thorough knowledge and investigation before intelligent measures of bird control can be applied. Thus, basic research in the laboratory and initial field studies are necessary to arrive at the most safe, efficient, and economical method of bird damage control possible for each situa-tion. The use of chemicals for damage control is one …

Concluding Remarks: Fourth Bird Control Seminar, William B. Jackson

Bird Control Seminars Proceedings

I had three basic ideas. One: that we were talking about bird management, not bird control. This is a recurrent theme through all four of our conferences I think. We're saying secondly that spot control, taking care of this problem at this place with this specific technique, is important and we need more tools; but we need to look at the larger aspect of the environment, the population, and its relationship—an ecological approach. Thirdly, communication, whether it be with the general public or specific interest groups or among this group of professionals involved in bird management, is important; and we …

A Conservation Department Approach To Environmental Contamination And Surveillance Problems, Leroy J. Korschgen

Bird Control Seminars Proceedings

Historically, the Conservation Commission has allied itself with other state, federal, and private agencies that are concerned with control and management of wildlife. It was suggested about a year ago that a Memorandum of Understanding, specifying the policy and procedure for bird control and rat and mouse control by the Bureau of Sport Fisheries and Wildlife in Missouri, would be desirable. Subsequent discussion with Bureau representatives led to the conclusion that a formal memorandum of understanding was unnecessary. The primary purpose of such documents is to formalize operating procedures in states where the Bureau carries on a continuous control program …

To Kill Or Not To Kill : That Is The Question, John R. Beck, William J. Spitz

Bird Control Seminars Proceedings

In talking with the panel that has agreed to be with you this morning, we find that almost to a man they feel very strongly there is no "it" in bird control, that a good applicator needs to be well balanced and well rounded, that he needs to know, far more than one approach, that he needs to be able to understand people, biological problems, ecology, eco-nomics, and several other factors. The idea that sometimes comes across in meetings such as this is, and rightly so in some instances, "I have the final answer." Gentlemen, there is no "it" in …

Utility Of Pyrotechnics In Bird Control, John R. Beck

Bird Control Seminars Proceedings

The balanced approach is essential for the proposed application of control methods for birds. The essential ingredients in a balanced approach are knowledge of the environment, both animal, plant and human; reasonable experience in the solution of biological problems; and an awareness of the possible solutions available. After these problems' qualifying ingredients have been met, the control specialist or investigator may apply the tool of choice. In most instances he will have selected alternatives available to himself. In the selection of the tool of choice and alternative methods, the cost of time, labor, materials and equipment, the need or purpose …

Chemosterilants And Bird Control, M. R. Woulfe

Bird Control Seminars Proceedings

The total scope of chemosterilants is very wide so I will comment only on the pigeon chemosterilant developed by G.D. Searle & Co. and then briefly on the role of chemosterilants, generally, in bird control. Searle's ORNITROL (SC-12937, azacosterol) is a chemosterilant which in-hibits reproduction in the pigeon and is to be used as a means of controlling pigeon populations. It is fed as a treated whole corn bait (0.1%) for a period of ten days and inhibits reproduction for about six months. We recommend treat-ment in the early spring just before the onset of the peak reproduction season to …

4th Bird Control Seminar -- Introductory Comments, William B. Jackson

Bird Control Seminars Proceedings

My travels the last few years have permitted me to see some aspects of bird management practices in both Asia and Europe. I must confess that had I not seen the Tori gates of Japan or the cathedral spires in Europe, I might well have thought I was in Ohio. Scarecrows were often seen. Fields were adorned with glittering strips of metal or blowing streamers of paper. In Scotland, red balloons flew over a turnip field. The sound of acetylene exploders sometimes fractured the tranquil countryside. While I saw many essentially useless devices for keeping birds out of man's agricultural …

Birds, Encephalitis, And Ectoparasites, Margaret A. Parsons

Bird Control Seminars Proceedings

Encephalitis or "inflammation of the brain" is a general term applied to a disorder which may have many causes. Usually this disorder is caused by a virus but it may also be produced by other types of micro-organisms. Encephalitis may also occur after an initial infection with mumps, measles and other childhood diseases, or following a vaccination, or as a result of a non-infectious process such as poisoning. Since encephalitis affects the brain, which in turn controls all body functions, encephalitis from any cause can show symptoms of general illness throughout the body such as headache, nausea and vomiting, fever, …

Status Of Bio-Sonics In Pest Bird Control, Gordon W. Boudreau

Bird Control Seminars Proceedings

Bioacoustics is defined as the study of biologically significant sounds ori-ginated by animals, and the mechanisms which produce and receive these sounds. Many of these sounds are audible to the human ear but some are above the human hearing range and fall into the ultrasonics class. There are sounds used by animals which are near or below the normal human hearing range in pitch, as in certain fish. Bioacoustics comprises a broad field of investigation and is an area which has only recently been explored. Improvements in electronic audio equipment have provided the impetus which launched recent bioacoustical investigations and …

Chemical Bird Control: Idealism And Reality, James B. Elder

Bird Control Seminars Proceedings

Budding wildlife biologists, whether they wind up in research, management or administration, start out with one attribute in common. They are idealists. It is idealism to be sure, that quickly becomes tempered, if not blunted, by the realities of working for worthwhile, even essential conservation goals in an in-different and frequently hostile environment. For some, the conflict of ideals vs reality is too much and they move on to other, probably more lucrative occupations. Still others, blessedly few in number, lose their ideals completely, become apathetic toward wildlife goals and devolve into that most pitiable of human specimens, the bureaucratic …

Pest Birds And Modern Architecture, Michael W. Fall, David E. Schneider

Bird Control Seminars Proceedings

We are offering some remarks on what the entomologist would call the areas of cultural control. Our interest in this approach developed out of a series of information discussions we've had concerning regional planning pro-grams at Penn State. Our ideas on the applications of this to bird management are not well developed; we'd be happy to hear your suggestions and comments. The ideas of cultural control are not new and are only one of many approaches. But perhaps we are reaching a stage of public concern about bird problems and about environmental contamination which make the climate for long range …

Entanglents And Sticky Repellents, Ken Hayden

Bird Control Seminars Proceedings

I would like to bring to your attention a survey conducted by N.P.C.A. a couple of years ago that found that 45% of our Industry was willing to engage in the bird management field. The first thought that came to my mind was: what about the other 55% of our industry that was not willing to do bird management work? Why was this? Perhaps their interests are elsewhere in the Pest Control field; maybe they do not like heights or perhaps the tools of the bird management field are developed by each individual company and, therefore, not available through the …

Presession Seminar On Blackbird Problems, Tom Stockdale

Bird Control Seminars Proceedings

I'd like to open with a very brief discussion, then call on some selected people with whom I've corresponded earlier, and ask if they will discuss a particular aspect of this total bird problem. I've asked that they keep their comments from three to five minutes. Trying to break the total problem down into its several facets we came up with six arbitrary subtopics. For want of better terms I've called these: population census techniques, chemical repellants, sonic repellants, wetting agents, lethal control techni-ques, and damage evaluation. Your particular problem in your area may be slightly different than in other …

The Prairie Naturalist Volume 1, No. 3. September, 1969

The Prairie Naturalist

EDITORIAL: A VOICE FOR CONSERVATION ▪ Paul B. Kannowski

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA—1968 ▪ Robert N. Randall

SOME ENVIRONMENTAL MANAGEMENT PROBLEMS AND PROPOSED SOLUTIONS ▪ Laurence R. Jahn

SOME PLANTS OF WESTERN MINNESOTA ▪ O. A. Stevens

MORTALITY OF MIGRATORY BIRDS AT GRAND FORKS, NORTH DAKOTA FOLLOWING A MOSQUITO CONTROL OPERATION IN MAY, 1969 ▪ Robert W. Seabloom, Lewis W. Oring and James R. Reilly

NESTING OF THE UPLAND PLOVER ON THE MISSOURI COTEAU ▪ K. F. Higgins, H. F. Duebbert and R. B. Oetting

NOTE

Albino sparrows discovered at Hazen, North Dakota ▪ Larry L. Kruckenberg and …

Technical Assistance And Supervision Of Commercial Fisheries Statistics And Marketing In Puerto Rico: Annual Report To The Department Of Agriculture Commonwealth Of Puerto Rico., Charles W. Caillouet, Ramon J. Garcia, James B. Higman

RSMAS Technical Reports

No abstract provided.

Economic Analysis Of Alternative Flood Control Measures, L. Douglas James, Thomas M. Rachford, James Ray Villines, Clyde R. Dempsey, James Norris Cline, Carlos Fix Miller

KWRRI Research Reports

Within the last few years, the growing realization that an effective flood control program must include non-structural measures (land use management and flood proofing) has resulted in Presidential Executive Order 11296 requiring Federal agencies to seek the optimum combination of structural and non-structural measures for flood control. The requirement has created a dilemma. No methodology is available for systematic evaluation of alternative combinations of structural and non-structural measures. Prospective procedures are too time consuming to be feasible under current financial and manpower limitations.

The only way out is to perform much of the planning process by digital computer. With this …