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Pest Bird Damage Control In Cattle Feedlots: The Integrated Systems Approach, Thomas K. Palmer Mar 1976

Pest Bird Damage Control In Cattle Feedlots: The Integrated Systems Approach, Thomas K. Palmer

Vertebrate Pest Conference Proceedings: 7th (1976)

The cattle feedlot affords an ideal habitat for large concentrations of birds. Several species are primarily involved in feed depredations and contamination. The development of an integrated systems approach to control involves the interaction of - human attitude, cultural control practices and application of bird damage control techniques, each of which is a dynamic system in itself.

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Effects Of Bait Formulations On Toxicant Losses And Efficacy, Larry F. Pank Mar 1976

Effects Of Bait Formulations On Toxicant Losses And Efficacy, Larry F. Pank

Vertebrate Pest Conference Proceedings: 7th (1976)

During application by airplane excessive amounts of zinc phosphide were lost from the bait registered to control rat damage in Hawaiian sugarcane. The losses created unnecessary hazards and potentially reduced the efficacy of the control program. In a series of screening tests, alternate adhesives, adhesive concentrations, and bait mixing procedures were evaluated for zinc phosphide retention, acceptance by rats, phosphine residues in sugarcane and operational effectiveness. A formulation was developed that reduced zinc phosphide losses 32% during application, increased acceptance by rats, left residues in sugarcane below the established tolerance and equaled or exceeded the performance of the original formulation.

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Contamination Of Forest Ecosystems By Sodium Fluoroacetate (Compound 1080)*, J.A. Peters Mar 1976

Contamination Of Forest Ecosystems By Sodium Fluoroacetate (Compound 1080)*, J.A. Peters

Vertebrate Pest Conference Proceedings: 7th (1976)

Predictive and conceptual models are used to examine the contamination, toxicology, and residues of sodium fluoroacetate (Compound 1080) in relation to its application in vertebrate pest control programs on forest and pastoral lands.

As a pesticide, the toxin appears to be neither mobile nor persistent. Exceedingly slender opportunities exist therefore for significant contamination of susceptible components of the environment.

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Olfactory Responses Of Deer Mice To Douglas-Fir Seed Volatiles, C. Raymond Record, Rex E. Marsh, Walter E. Howard, Donald J. Stern Mar 1976

Olfactory Responses Of Deer Mice To Douglas-Fir Seed Volatiles, C. Raymond Record, Rex E. Marsh, Walter E. Howard, Donald J. Stern

Vertebrate Pest Conference Proceedings: 7th (1976)

An attempt was made to identify the olfactory cues produced by Douglas-fir seeds which attract deer mice (Peromyscus maniculatus) to the seeds. The olfactometers used are described, and the merits of different statistical analyses of the data are discussed. The odors produced by whole Douglas-fir seed and by the endosperm were preferred among the fractions tested to date. Deer mice were repelled by Douglas-fir turpentine, cedar oil, and, to a lesser degree, one extract.

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Control Of The Oregon Ground Squirrel (Spermophilus Beldingi Oregonus), Warren C. Sauer Mar 1976

Control Of The Oregon Ground Squirrel (Spermophilus Beldingi Oregonus), Warren C. Sauer

Vertebrate Pest Conference Proceedings: 7th (1976)

Attempts to reduce populations of Spermophilus beldingi oregonus have centered around the application of Compound 10.80 and strychnine baits. Additional population reduction techniques were investigated for possible employment into the squirrel program. Techniques which show much promise are: hand baited chopped gree bait (.01% chlorophacinone) broadcast (10 pounds per acre) and hand baited grain bait with .01% chlorophacinone and .05% fumarin, and bait stations using .01%, .05% chlorophacinone grain bait (100 and 200 foot spacing) and .05% fumarin grain bait (100 foot spacing).

In addition, the concentration of Compound 1080 on chopped green bait can be reduced to 1/4 oz. …

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Operational Aspects Of Successful Ground Squirrel Control By Aerial Application Of Grain Bait, Conrad Schilling Mar 1976

Operational Aspects Of Successful Ground Squirrel Control By Aerial Application Of Grain Bait, Conrad Schilling

Vertebrate Pest Conference Proceedings: 7th (1976)

By County Ordinance the County Agricultural Commissioner has been charged with rodent suppression in Fresno County, California. For nine years personnel from the Agricultural Commissioner's Office have conducted a county operated and funded program of ground squirrel suppression through the use of aerially applied zinc phosphide treated squirrel oat groats. Planning procedures, relative costs and operational aspects of the program are outlined. This technique of ground squirrel suppression has been shown to have many advantages over hand application of rodent baits. No known hazards to non-target wildlife species have been demonstrated.

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Opening Comments—Seventh Vertebrate Pest Conference, Charles C. Siebe Mar 1976

Opening Comments—Seventh Vertebrate Pest Conference, Charles C. Siebe

Vertebrate Pest Conference Proceedings: 7th (1976)

On behalf of the Vertebrate Pest Council, it is my pleasure to welcome you to the Seventh Vertebrate Pest Conference. We are pleased that the American Society for Testing and Materials held its first Symposium on Test Methods for Vertebrate Pest Control and Management Materials in conjunction with our Conference, and we congratulate Symposium Chairman Rex Marsh for the excellent program that was presented. The concerns and challenges of today's society mandate that we be knowledgeable and up-to-date concerning the use of vertebrate pest damage control methods and materials and the impacts of our programs on the environment.

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Criteria For Rodent Bait Selection, W.R. Smythe Mar 1976

Criteria For Rodent Bait Selection, W.R. Smythe

Vertebrate Pest Conference Proceedings: 7th (1976)

World food shortages become more acute each year, and all too often, rodents are present to take their unwarranted share. To counter this, we must refine our rodent control methods to make them more efficient. To this end, correct bait selection is essential. Grain baits must be selected for purity and acceptability. Grain alterations must be carefully controlled, as well as any additives. Multi-ingredient or composition baits must be checked for size, hardness, protein content and additives. The selection of trap baits is critical for the success of trapping program. In general, fresh coconut is the best bait, but on-site …

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Keynote Address—The Role Of Education In Vertebrate Pest Control, Gustav A. Swanson Mar 1976

Keynote Address—The Role Of Education In Vertebrate Pest Control, Gustav A. Swanson

Vertebrate Pest Conference Proceedings: 7th (1976)

Lack of adequate information is emphasized as a major problem in attaining effective control of damage by vertebrate pests, and it is stressed that the problem is widespread in all elements of the public, including those directly involved, like producers and government officials, as well as those only indirectly involved, like the average citizen. A number of specific examples are cited to illustrate the problems of uninformed or inadequately informed publics.

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Anticoagulants—A Problem Of Distribution For The Hawaiian Sugar Industry, Allen H. Teshima Mar 1976

Anticoagulants—A Problem Of Distribution For The Hawaiian Sugar Industry, Allen H. Teshima

Vertebrate Pest Conference Proceedings: 7th (1976)

Current rodent control practices for the Hawaiian sugar industry revolve around the use of single grain baits containing anticoagulants in bait stations and zinc phosphide for aerial applications. Neither type of control programs as they are now applied has been very effective against the Norway rat (Rattus norvegicus) which is becoming a major problem species for the industry. As a result, we have sought a more effective anticoagulant, to which the Norway rat is more susceptible, and an improved method of bait distribution. With knowledge of the month-to-month variation in the field rodents' gestation rate, a new control …

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The Cost Of Predator Damage Control Using Trapping As The Primary Control Technique, Ronald A. Thompson Mar 1976

The Cost Of Predator Damage Control Using Trapping As The Primary Control Technique, Ronald A. Thompson

Vertebrate Pest Conference Proceedings: 7th (1976)

The justification and economics of the operational animal damage control program in California as conducted by the U.S. Fish and Wildlife Service are discussed. Emphasis is given to the necessity for use of the steel trap. Nearly 83 percent of the depredators are taken by trapping. Annual agricultural losses due to predation were estimated at $4.7 million in California for Fiscal Year 1975. The projected cost-benefit ratio was 1:3.9.

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The Use Of Aircraft In Predator Control, Dale A. Wade Mar 1976

The Use Of Aircraft In Predator Control, Dale A. Wade

Vertebrate Pest Conference Proceedings: 7th (1976)

Private aerial hunting of predators for protection of livestock began before 1925 in the western United States. Apparently, it was first used in professional control programs in 1942. Inclement weather, dense vegetation and rough terrain are limiting factors and helicopters are more versatile than fixed-wing aircraft. When it can be employed, aerial hunting is unsurpassed as an immediate control method where livestock losses are severe and the need for control is urgent.

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Control Methods For Nuisance Beaver In The Southeastern United States, Edward P. Hill Mar 1976

Control Methods For Nuisance Beaver In The Southeastern United States, Edward P. Hill

Vertebrate Pest Conference Proceedings: 7th (1976)

Strychnine alkaloid baits were consumed by both captive and wild beaver without any apparent hesitation. An approximate minimal acute lethal dose of sodium monofluoro-acetate to beaver of mixed ages and sex was 0.202 mg/kg. Trapping beaver on four study area watersheds in Alabama with No. 330 conibear traps for approximately two weeks in winter during two successive years essentially eliminated beaver. Older individuals were trapped the first year, maturing juveniles and the remaining few adults were trapped the second year, and there was very little reproduction between the trapping periods. Trapping, with its recreational appeal, and income and food potential …

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Pharmacological Review Of Chemicals Used For The Capture Of Animals, Peter J. Savarie Mar 1976

Pharmacological Review Of Chemicals Used For The Capture Of Animals, Peter J. Savarie

Vertebrate Pest Conference Proceedings: 7th (1976)

A review of the literature reveals that over 60 chemicals have been used for the capture of wild animals, but only 30 of the most widely used chemicals are discussed in the present paper. For practical considerations these chemicals can be classified as being either (l) neuromuscular blocking agents, or (2) central nervous system (CNS) depressants. Some common neuromuscular blocking agents are d-tubocurarine, gallamine, succiny1choline, and nicotine. M99 and its derivatives, phencyclidine, and xylazine are some of the more commonly used CNS depressants. Neuromuscular blocking agents have a relatively rapid onset and short duration of action but they do not …

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Efficient Ci Calculations Utilizing The Symmetric Group, Gordon A. Gallup, J.M. Norbeck Mar 1976

Efficient Ci Calculations Utilizing The Symmetric Group, Gordon A. Gallup, J.M. Norbeck

Gordon Gallup Publications

Gallup has recently given a solution to the problem of determining an orthogonal representation matrix for an arbitrary permutation of the symmetric group in terms of sandwich representations. In this paper it is shown how this provides a means for the precalculation and storage of the necessary distinct coefficients needed in the construction of the various Hamiltonian matrix elements of an orthogonal orbital CI calculation. This method has the advantage over those published previously in that the spin degeneracy problem is handled more efficiently. It is shown that this procedure can be utilized with both the "construction and storage" algorithms …

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Raman Spectrum Of Gadolinium Molybdate At 80°K, B.N. Ganguly, Frank G. Ullman, Roger D. Kirby, John R. Hardy Feb 1976

Raman Spectrum Of Gadolinium Molybdate At 80°K, B.N. Ganguly, Frank G. Ullman, Roger D. Kirby, John R. Hardy

Roger Kirby Publications

Lines that overlap from thermal broadening in the room-temperature Raman spectrum of gadolinium molybdate are resolved in the 80°K spectrum. A total of 126 of the possible 201 lines have been resolved. Symmetry assignments are derived from considerations of both point symmetry and polariton dispersion, supported by separate measurements of A1(TO) and A1(LO) spectra. The splitting of the unstable 47 cm-1 room-temperature A1(TO) line into a doublet at 44.5 and 51.5 cm-1, observed previously only in ir absorption, is also observed in these spectra. On heating, the 44.5-cm-1 line remains fixed in frequency whereas the 51.5-cm-1 line broadens and shifts …

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A D-Vac Calibration Technique, K. P. Pruess, R. W. Whitmore Feb 1976

A D-Vac Calibration Technique, K. P. Pruess, R. W. Whitmore

Department of Entomology: Faculty Publications

Removal samples from an irrigated pasture were used as a calibration technique for the D-Vac. Plots 4 m2 were enclosed with a frame, and 1 initial and 3 removal samples were taken. Equations are given for computing the population and probability of collecting an insect. For leafhopper adults, leafhopper nymphs, Orius insidiosus (Say), and corn flea beetle, Chaetocnema pulicaria Melsheimer, calibrations (m2/linear m) were 0.405, 0.328, 0.272, and 0.490, respectively.

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Water Resources Of Pierce County, Nebraska, Robert E. Brogden, Richard A. Engberg Feb 1976

Water Resources Of Pierce County, Nebraska, Robert E. Brogden, Richard A. Engberg

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

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(R - I) Colors Of Cepheids And Yellow Supergiants In Open Clusters, Edward G. Schmidt Jan 1976

(R - I) Colors Of Cepheids And Yellow Supergiants In Open Clusters, Edward G. Schmidt

Edward Schmidt Publications

(R - I ) and (b - y) observations of nine Cepheids which are members of open clusters, 14 field Cepheids, and 34 nonvariable yellow giants in or near open clusters are presented. Colorcolor relations for the Cepheids are found to differ significantly from star to star. Additionally, the nonvariables may differ from the Cepheid color-color relation. Pulsational masses are determined for the Cepheids using both (R - I) and (B - V) colors as temperature indicators. For some of the shorter period stars the (R - I) masses agree with evolutionary masses, which is not the …

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Reflectant Induced Modification Of Soybean Canopy Radiation Balance. V Longwave Radiation Balance, M. W. Baradas, B. L. Blad, N. J. Rosenberg Jan 1976

Reflectant Induced Modification Of Soybean Canopy Radiation Balance. V Longwave Radiation Balance, M. W. Baradas, B. L. Blad, N. J. Rosenberg

School of Natural Resources: Faculty Publications

No abstract provided.

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A System And Program For Monitoring Co2 Concentration Gradient, And Flux In An Agricultural Region, N. J. Rosenberg, S. B. Verma Jan 1976

A System And Program For Monitoring Co2 Concentration Gradient, And Flux In An Agricultural Region, N. J. Rosenberg, S. B. Verma

School of Natural Resources: Faculty Publications

No abstract provided.

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Carbon Dioxide Concentration And Flux In A Large Agricultural Region Of The Great Plains Of North America, S. B. Verma Jan 1976

Carbon Dioxide Concentration And Flux In A Large Agricultural Region Of The Great Plains Of North America, S. B. Verma

School of Natural Resources: Faculty Publications

No abstract provided.

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Resistance-Energy Balance Method For Predicting Evapotranspiration: Determination Of Boundary Layer Resistance And Evaluation Of Error Effects, S. B. Verma, N. J. Rosenberg, B. L. Blad Jan 1976

Resistance-Energy Balance Method For Predicting Evapotranspiration: Determination Of Boundary Layer Resistance And Evaluation Of Error Effects, S. B. Verma, N. J. Rosenberg, B. L. Blad

School of Natural Resources: Faculty Publications

No abstract provided.

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Vertical Profiles Of Carbon Dioxide Concentration In Stable Stratification, S. B. Verma Jan 1976

Vertical Profiles Of Carbon Dioxide Concentration In Stable Stratification, S. B. Verma

School of Natural Resources: Faculty Publications

No abstract provided.

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Department Of Entomology Newsletter - No. 4, 1976, Lyle E. Klostermeyer Editor Jan 1976

Department Of Entomology Newsletter - No. 4, 1976, Lyle E. Klostermeyer Editor

Hexapod Herald and Other Entomology Department Newsletters

The Newsletter Committee has succeeded in documenting departmental activities in an outstanding manner. All of us in the department appreciate the wonderful efforts and many hours spent by the Newsletter Committee: Brett Ratcliffe, Ron Rivers, Bruce Monke, Tim Miller and particularly the leadership of Lyle Klostermeyer as Committee Chairman. The typing assistance of our secretarial staff is greatly appreciated. The many changes in personnel and programs that have taken place during the period since the 1968 publication of Departmental Newsletter No.3 are well covered in various sections of the newsletter. We also compliment the Committee on their choice of dedicating …

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Four-Color And Hβ Photometry Of The Galactic Cluster Ngc 6633, Edward G. Schmidt Jan 1976

Four-Color And Hβ Photometry Of The Galactic Cluster Ngc 6633, Edward G. Schmidt

Edward Schmidt Publications

Photometric measurements of stars in the intermediate-age galactic cluster NGC 6633 are presented. From these data the color excess is found to vary slightly across the cluster with an average of Eb – y = 0m.124. The distance modulus is found to be 7m.711 and the turnoff occurs at about (b – y)0 = 0m.l. The cluster is slightly metal poor.

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Test 1224: Ford 6600 Diesel 16-Speed, Nebraska Tractor Test Lab Jan 1976

Test 1224: Ford 6600 Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

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Water Current, Volume 8, No. 1, January/February 1976 Jan 1976

Water Current, Volume 8, No. 1, January/February 1976

Water Current Newsletter

Evolving Groundwater Management Policies
Water Resources Seminars
1976 Water Conference
Water Research in Nebraska
OWRT Seeks Applications for One-Year Appointment as Research Scholar
Nonpoint Sources Causing Water Quality Problems
Research Review: Mapping Model for Determining Land Suitable for Irrigation

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Reflectant Induced Modification Of Soybean Canopy Radiation Balance. Iv. Leaf And Canopy Temperature, M. W. Baradas, B. L. Blad, N. J. Rosenberg Jan 1976

Reflectant Induced Modification Of Soybean Canopy Radiation Balance. Iv. Leaf And Canopy Temperature, M. W. Baradas, B. L. Blad, N. J. Rosenberg

School of Natural Resources: Faculty Publications

No abstract provided.

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How Serious Are Teacher Educators About Career Education?, Allen G. Blezek Jan 1976

How Serious Are Teacher Educators About Career Education?, Allen G. Blezek

Department of Agricultural Leadership, Education, and Communication: Faculty Publications

A study recently completed at the University of Nebraska-Lincoln was designed to measure the extent to which selected teacher educators are incorporating procedures for planning and conducting career education programs into teacher education curriculums. The objectives discussed here are the determination of the extent to which teacher education staffs are incorporating career education concepts into the curricula of all of the colleges and universities collectively as well as specifically with respect to the subject matter area and/or specialty.

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