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An Alternative Approach For Evaluating The Efficacy Of Potential Biocontrol Agents Of Weeds. 2. Path Analysis, Dan J. Pantone, William A. Williams, Armand R. Maggenti Nov 1989

An Alternative Approach For Evaluating The Efficacy Of Potential Biocontrol Agents Of Weeds. 2. Path Analysis, Dan J. Pantone, William A. Williams, Armand R. Maggenti

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Path analysis was used to assess the efficacy of the fiddleneck flower gall nematode as a weed biocontrol agent of coast fiddleneck in competition with wheat during two years of field experiments. The path analysis revealed that the number of inflorescences/plant for fiddleneck and the number of heads/plant for wheat were the most important yield components that determine fecundity and seed yield. The density of fiddleneck had a much greater impact on the yield components of fiddleneck than did the density of wheat or the nematode rate of inoculation. The nematode had its greatest negative impact on the number of …

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Heteromys Gaumeri, Cheryl A. Schmidt, Mark D. Engstrom, Hugh H. Genoways Oct 1989

Heteromys Gaumeri, Cheryl A. Schmidt, Mark D. Engstrom, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Heteromys gaumeri Allen and Chapman, 1897, Gaumer's Spiny Pocket Mouse.

Heteromys gaumeri Allen and Chapman, 1897:9. Type locality "Chichen-Itza, Yucatan, Mexico."

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Herring Gulls, Larus Argentatus, Nesting On Sandusky Bay, Lake Erie, 1989, Richard A. Dolbeer, P.P. Woronecki, T. W. Seamans, B. N. Buckingham, E. C. Cleary Oct 1989

Herring Gulls, Larus Argentatus, Nesting On Sandusky Bay, Lake Erie, 1989, Richard A. Dolbeer, P.P. Woronecki, T. W. Seamans, B. N. Buckingham, E. C. Cleary

United States Department of Agriculture Wildlife Services: Staff Publications

One of the largest herring gull (Larus argentatus} nesting populations on the Great Lakes is located in an urban setting on Sandusky Bay in the Ohio portion of Lake Erie. The survey reported here, carried out in 1989, indicated a population of 4,250 nests. The population has expanded from a focal point on Turning Point Island to coal piles at the Lower Lake Dock Company, rooftops in downtown Sandusky and breakwalls near Cedar Point. Comparison with data from a survey performed in 1976 indicates the population has grown at an average annual rate of 11.9% during the past 13 years. …

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Index Selection For Components Of Litter Size In Swine: Response To Five Generations Of Selection, S. M. Neal, R. K. Johnson, R. J. Kittock Oct 1989

Index Selection For Components Of Litter Size In Swine: Response To Five Generations Of Selection, S. M. Neal, R. K. Johnson, R. J. Kittock

Department of Animal Science: Faculty Publications

Selection for an index of ovulation rate (OR) and embryo (fetal) survival rate (ES) to 50 d of gestation (I = 10.6 x OR + 72.6 x ES) was practiced for five generations in a line that was a composite population of the Large White and Landrace breeds of swine. A control line sampled from the same population was selected randomly and mated. Ovulation rate and number of fetuses (FETS) were measured by laparotomy and ES was calculated as FETS/OR. The select line averaged 43 litters by 18 sires and the control line averaged 42 litters by 15 sires per …

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Control Of Luteinizing Hormone In Postpubertal Boars With Large Testes, P. L. Wolfe, M. W. Wolfe, T. T. Stumpf, J. A. Stotts, M. L. Day, R. J. Kittock, R. K. Johnson, J. E. Kinder Oct 1989

Control Of Luteinizing Hormone In Postpubertal Boars With Large Testes, P. L. Wolfe, M. W. Wolfe, T. T. Stumpf, J. A. Stotts, M. L. Day, R. J. Kittock, R. K. Johnson, J. E. Kinder

Department of Animal Science: Faculty Publications

The objective of the present study was to investigate endocrine control of LH in post-pubertal boars with large testes. Eight boars with the highest estimated paired testis weights from a line selected for large testes and nine boars from a line selected at random were used. Blood samples were collected over a 13-h period at weekly intervals for 4 wk. Samples were collected at 12-min intervals for 12 h before and 1 h after exogenous LHRH. Boars were bled when they were intact during the initial week. The second and third blood collections were 7 and 14 d after castration. …

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Agricultural Experiment Station News October 1989 Oct 1989

Agricultural Experiment Station News October 1989

Agricultural Research Division: News and Annual Reports

CONTENTS:
UNL RESEARCH COUNCIL
CORPS OF ENGINEERS MOVES TO ARDC
EPA/USDA TOURS ARDC SEPTEMBER 22
LISA UPDATE
NEW FACULTY JOIN ARD
SAM CORDES BECOMES HEAD OF AGRICULTURAL ECONOMICS
ROBERT C. SHEARMAN HEADS AGRONOMY
JUDY ANNE DRISKELL LEADS HUMAN NUTRITION AND FOOD SERVICE MANAGEMENT
USDA COMPETITIVE GRANTS PROGRAM
ARD ADVISORY COUNCIL NEWS
PESTICIDE DOCUMENT NEARS COMPLETION
COMMODITY BOARD FUNDING ANNOUNCED
NEW AND REVISED PROJECTS
RESEARCH GRANTS AND CONTRACTS RECEIVED JUNE & JUNE 1989
STATE INVESTMENT IN AGRICULTURAL RESEARCH (1987) COMPARED BY EXPENDITURES PER $1000 GROSS FARM INCOME AND PER CAPITA

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Animal Science Newsletter, Fall 1989 Oct 1989

Animal Science Newsletter, Fall 1989

Department of Animal Science: Departmental News

ART EXHIBITS IN THE ANIMAL SCIENCES BUILDING
IANR OPEN HOUSE TO HIGHLIGHT "NEW DIRECTIONS"
ANIMAL SCIENCE ALUMNI NOTE
DEPARTMENT NEWS -- DEATH IN THE FAMILY: Dwight F. Stephens
RECIPIENTS OF AWARDS
TERRY KLOPFENSTEIN APPOINTED KERMIT WAGNER DISTINGUISHED PROFESSOR OF ANIMAL SCIENCE
FACULTY RETIREMENTS: Donald C. Clanton, John Ward
NEW PROGRAMS IN THE DEPARTMENT
ENROLLMENT TRENDS
BLOCK AND BRIDLE CLUB NEWS: John C. Klosterman 1989 BLOCK AND BRIDLE HONOREE; JUDGING TEAMS HAVE SUCCESSFUL YEAR
CALENDAR OF EVENTS FOR 1989-90

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The Probe, Issue 96 - October 1989 Oct 1989

The Probe, Issue 96 - October 1989

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE National Animal Damage Control Association
OCTOBER 1989
NADCA Executive Board Meeting
4th Eastern Wildlife Damage Control Conference
Membership
Letters to Ye Ed
Animal Rights
Lyme Disease
Personel
APHIS Activity Report
The Rocky Mountain Humane Society
Eagles to be Poison-test Guinea Pigs
NADCA Survey

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Effects Of Free-Ranging Cats On Wildlife: A Progress Report, J.S. Coleman, S.A. Temple Sep 1989

Effects Of Free-Ranging Cats On Wildlife: A Progress Report, J.S. Coleman, S.A. Temple

Eastern Wildlife Damage Control Conference: 4th (1989)

We have embarked upon a three-year study to determine the density and distribution of free-ranging cats (Felis catus) and their effects on prey populations in rural Wisconsin. The effects of predation by free-ranging cats on wildlife populations are potentially great and have not been adequately accounted for in wildlife management programs. In rural Illinois there was an average of 5.6 free-ranging cats per farm (Warner 1985). If densities elsewhere are similar, then a state such as Wisconsin, with over 200,000 active and retired farms, could have over 1 million free-ranging cats on farms. In other studies (Bradt 1949, …

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Beaver And Beaver Dam Removal In Wisconsin Trout Streams, Larry Dickerson Sep 1989

Beaver And Beaver Dam Removal In Wisconsin Trout Streams, Larry Dickerson

Eastern Wildlife Damage Control Conference: 4th (1989)

Beaver (Castor canadensis) dam building activities create many long-term affects on stream ecosystems. Beaver dams may negatively influence trout fisheries by creating physical barriers to spawning areas, increasing sediment retention, and increasing water temperatures. The U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) Animal Damage Control (ADC) program in Wisconsin, entered into cooperative agreements with the Wisconsin Department of Natural Resources (WDNR) and the U.S. Forest Service (USFS) on the Nicolet National Forest from June through September, 1988, to remove beaver and beaver dams from priority classed trout streams. Four hundred and eight beaver …

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Evaluation Of A Canada Goose Call-Activated Switch For Crop Damage Abatement, James W. Heinrich, Scott R. Craven Sep 1989

Evaluation Of A Canada Goose Call-Activated Switch For Crop Damage Abatement, James W. Heinrich, Scott R. Craven

Eastern Wildlife Damage Control Conference: 4th (1989)

Damage and nuisance problems caused by Canada geese (Branta canadensis) are difficult to control with current abatement technology. We tested the efficacy of a goose call-activated switch as a modification for propane exploders (gas cannons), using recorded Canada goose calls and live goose trials. We recorded a 30 m range for the switch and found that it was activated by a range of non-target sounds. The development of this device and the technology involved are discussed. The call-activated switch is not a useful tool in reducing Canada goose damage in crop fields.

Canada geese frequently feed on agricultural …

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Wolf Depredation On Livestock In Minnesota Annual Update Of Statistics - 1988, William J. Paul Sep 1989

Wolf Depredation On Livestock In Minnesota Annual Update Of Statistics - 1988, William J. Paul

Eastern Wildlife Damage Control Conference: 4th (1989)

Depredation by wolves (Canis lupus) on livestock and poultry in Minnesota is a problem for some producers. A small percentage of the farms in the wolf range are affected annually and a few of these farms suffer substantial monetary loss in a given year. From 1976 through 1988, the number of farms suffering verified wolf depredations ranged from 9 to 38 (x = 23) per year out of about 7,200. From 1977 through 1988 the highest cattle losses claimed by farmers were 0.45 per 1,000 available in 1979; the highest sheep losses claimed were 2.66 per 1,000 available …

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Ecologically Sensitive Management Options For Bats, Paul B. Robertson Sep 1989

Ecologically Sensitive Management Options For Bats, Paul B. Robertson

Eastern Wildlife Damage Control Conference: 4th (1989)

Over the past decade, there has been a dramatic, positive shift in the public image of bats in the United States (Tuttle 1988a). This shift is particularly impressive in light of the inappropriate and poor public image that bats have suffered in most western nations in the last century. Over the past decade, a sizeable segment of the U.S. public, as well as local, state and national officials, have been educated to the ecological and economic value of bats which results from their insectivory and plant pollination activities (Olkowski and Olkowski 1989, Tuttle 1988b). The fact that they pose a …

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An Automatic Trigger For Bird Frightening Devices, Steve Price, John Adams Sep 1989

An Automatic Trigger For Bird Frightening Devices, Steve Price, John Adams

Eastern Wildlife Damage Control Conference: 4th (1989)

This triggering unit for animal frightening devices was developed because of an expressed need for a more effective method of breaking up starling and grackle roosts. The USDA, Animal Damage Control (ADC) office in Louisville, KY suggested that a device which detected the presence of the birds before activating and then emitted different sounds would be much more effective than single functioning devices on timers. Existing frightening devices have limited effectiveness because the birds become accustom to the repeated and periodic actuations of the same thing over and over again. In November of 1986, Mr. Bernice Constantin, District Supervisor for …

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The Usda-Aphis-Adc Program In The United States, Bobby R. Acord Sep 1989

The Usda-Aphis-Adc Program In The United States, Bobby R. Acord

Eastern Wildlife Damage Control Conference: 4th (1989)

The ADC program was transferred to the U.S. Department of Agriculture, Animal and Plant Health Inspection Service in 1986. Shortly after the transfer, the Secretary of Agriculture established the National Animal Damage Control Advisory Committee (NADCAC). Current and future issues facing ADC are discussed in the context of NADCAC recommendations.

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A Revolution In Bird Control, Michael Amir Sep 1989

A Revolution In Bird Control, Michael Amir

Eastern Wildlife Damage Control Conference: 4th (1989)

Bird control methods currently in use at airports are often effective for only a short period of time and are only designed to frighten birds on the ground. Air Birdstrike Prevention Inc. (ABP Inc.) has designed and developed a new approach. Remote controlled aircraft, equipped with airborne pyrotechnic devices,(U.S. and Canada Patent Pending), that flies after the birds, redirecting them out of the airport and reducing the bird population in the airport vicinity without harming the birds.

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A Review Of The Status Of Bird Management Products And Devices In The United States, Charles W. Areson Sep 1989

A Review Of The Status Of Bird Management Products And Devices In The United States, Charles W. Areson

Eastern Wildlife Damage Control Conference: 4th (1989)

Commercial urban /industrial structural pest bird control is approaching a time of crisis. Several long-standing toxicants that have been used as a major part of pest bird control programs are either suspended, at risk of suspension, or have had their production terminated by the manufacturer. "Environmental groups" are up in arms about the use and misuse of pesticides. Lawsuits have been filed to stop the use of some products, and political pressure has brought about reviews of some pesticide products on both the state and federal levels. EPA has seemed to have a "get tough" policy in its reregistration guidelines, …

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Preliminary Evaluation Of A Granular Trimethacarb Formulation For Deterring Grazing By American Coots, Michael L. Avery, Curtis Nelms, J. Russell Mason Sep 1989

Preliminary Evaluation Of A Granular Trimethacarb Formulation For Deterring Grazing By American Coots, Michael L. Avery, Curtis Nelms, J. Russell Mason

Eastern Wildlife Damage Control Conference: 4th (1989)

In a 0.2 ha flight pen, groups of 4 American coots were tested to determine if their grazing activity could be affected by application of a registered granular-trimethacarb insecticide. In the 3 days following treatment (3 kg/ha, a.i.), grazing activity in the treated portions of the 200 m2 experimental plots was reduced an average of 47X. Overall use of the treated areas followed a similar pattern but was less consistent among groups. The addition of methylpyrazine, a strong odorant, produced a strong initial suppression of grazing activity in the treated halves of the plots. However, subsequent rain and a change …

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The Role Of Private Enterprise In Wildlife Damage Control, Lynn Braband Sep 1989

The Role Of Private Enterprise In Wildlife Damage Control, Lynn Braband

Eastern Wildlife Damage Control Conference: 4th (1989)

In addressing the role of private enterprise in wildlife damage control, I will not be bringing the final word or a comprehensively exhaustive report. Rather, I will be presenting some perspectives as the representative of a firm with extensive involvement with wildlife damage control as a business. My comments will be divided into why, what, how, and the future.

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Persistence Of Tartrazine In Marking Sheep Wool, Richard J. Burns, Peter J. Savarie Sep 1989

Persistence Of Tartrazine In Marking Sheep Wool, Richard J. Burns, Peter J. Savarie

Eastern Wildlife Damage Control Conference: 4th (1989)

Tartrazine was examined as a possible replacement marker for rhodamine B in the Livestock Protection Collar. Test solutions were formulated in six combinations; tartrazine at 0.5% and 1.07. concentrations, with and without compound 1080, and with and without nigrosin black. Each solution was examined for persistence of color in the laboratory and when applied to the wool of dried sheep hide. Hide pieces were allowed to weather naturally or were sprinkled to simulate rain. Tartrazine alone was also tested at concentrations of 0.5% and 1.0% on the necks of sheep. Over a 3—month period, no fading was noted in the …

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Wildlife Damage To Crops: Perceptions Of Agricultural And Wildlife Professionals In 1957 And 1987, Michael R. Conover, Daniel J. Decker Sep 1989

Wildlife Damage To Crops: Perceptions Of Agricultural And Wildlife Professionals In 1957 And 1987, Michael R. Conover, Daniel J. Decker

Eastern Wildlife Damage Control Conference: 4th (1989)

We surveyed state wildlife agencies, state agricultural departments, Wildlife Extension Specialists, U.S.D.A. Animal Damage Control agents, and state Farm Bureau officials to develop a national perspective of wildlife damage to agricultural crops in the U.S. A broad concensus existed that wildlife damage was a major problem, although groups often differed in their perceptions of the seriousness of specific problems. The complexity of the wildlife damage problem was apparent in that 27 different wildlife species were cited as causing the greatest problem to a state's farmers. Nevertheless, 38-80% of the respondents from every group surveyed stated that deer were their worst …

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Farmer Attitudes Toward Wild Turkeys In Southwestern Wisconsin, Scott R. Craven Sep 1989

Farmer Attitudes Toward Wild Turkeys In Southwestern Wisconsin, Scott R. Craven

Eastern Wildlife Damage Control Conference: 4th (1989)

The reintroduction of the Wild Turkey (Meleagris gallopavo) represents one of the great success stories for Wisconsin wildlife management. Human settlement, habitat loss, and perhaps disease, combined to eliminate once-common turkeys from Wisconsin by 1900. Periodic attempts to restore a viable turkey population were unsuccessful with the exception of a small flock at Meadow Valley-Necedah in central Wisconsin. However in 197'6, the Wisconsin Department of Natural Resources (WDNR) began a new, well conceived cooperative project with the Missouri Department of Conservation. Under the agreement, Missouri received 3 wild Wisconsin ruffed grouse (Bonasa umbellus) in exchange for …

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Laughing Gulls At Jfk Airport: Safety Hazard Or Wildlife Resource?, R.A. Dolbeer, M. Chevalier, P.P. Woronecki, E.B. Butler Sep 1989

Laughing Gulls At Jfk Airport: Safety Hazard Or Wildlife Resource?, R.A. Dolbeer, M. Chevalier, P.P. Woronecki, E.B. Butler

Eastern Wildlife Damage Control Conference: 4th (1989)

John F. Kennedy International Airport is adjacent to Jamaica Bay Wildlife Refuge administered by the National Park Service. In 1979, 15 pairs of laughing gulls (Larus atricilla) nested on the refuge, the first recolonization of Long Island by this species since the gulls' disappearance from New York around 1900. The colony, with nests as close as 0.4 km to 1 runway, has subsequently increased to about 3,000 pairs. From 1970 to 1978, only 1 laughing gull strike by an aircraft was recorded at JFK. From 1979 through August 1989, 800 strikes were recorded, including 179 in 1989, in …

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The Effectiveness Of Orco Mole Bait In Controlling Mole Damage, Dale K. Elshoff, Glenn R. Dudderar Sep 1989

The Effectiveness Of Orco Mole Bait In Controlling Mole Damage, Dale K. Elshoff, Glenn R. Dudderar

Eastern Wildlife Damage Control Conference: 4th (1989)

The tunneling damage caused by eastern moles (Scalopus aquaticus) and star-nosed moles (Condvlura cristata) is well known to professionals in lawn care, golf course maintenance, and turf grass production, as well as many private landowners. Present damage control methods, including trapping, gas and smoke fumigants, and insecticide applications have a wide variety of limitations and prove impractical in some situations. An easily applied mole damage control method is needed that professional and nonprofessional applicators can use in a variety of environmental and physical conditions.

This study tested the effectiveness of Oreo Mole Bait, a chlorophacinone pellet …

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Wildlife Damage In Electric Substations In New York, Jody W. Enck Sep 1989

Wildlife Damage In Electric Substations In New York, Jody W. Enck

Eastern Wildlife Damage Control Conference: 4th (1989)

Wildlife managers have long been concerned with the damage wildlife can cause, especially to agricultural crops. However, one area which has received little research is the damage caused by wildlife to electric substations. Such research is needed because damage to electric substations increases operating costs of utilities and reduces reliability of service to customers.

Six member utilities of the Empire State Electric Energy Research Corporation (ESEERCO) were surveyed to identify classes of substations experiencing animal-caused faults (i.e., short circuits), and to determine the impacts of those faults. Records of more than 200 animal-caused faults occurring from 1970-88 were examined. The …

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A Fencing Technique To Reduce Raccoon Feeding Damage To Sugarcane Research Plots, Hugh P. Fanguy, Dwight Leblanc Sep 1989

A Fencing Technique To Reduce Raccoon Feeding Damage To Sugarcane Research Plots, Hugh P. Fanguy, Dwight Leblanc

Eastern Wildlife Damage Control Conference: 4th (1989)

Damage caused by the feeding of raccoons (Procvon lotor) on stalks of sugarcane (Saccharum sp.) has occurred for several years on the 200-acre U.S. Department of Agriculture, Agricultural Research Service (USDA-ARS) research farm located near Houma, Terrebonne Parish, Louisiana. Damage begins when sugarcane mature internodes begin to from in late June and early July, and continues until the completion of harvest in late December. Raccoons appear to prefer varieties having low fiber and/or high sugar content and can severely damage these varieties (personal observation). Depredation by these animals frequently result in loss of data as preferred varieties …

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Frontmatter And Contents Sep 1989

Frontmatter And Contents

Eastern Wildlife Damage Control Conference: 4th (1989)

Frontmatter, Contents, Schedules, and Exhibitors

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Donkeys For Predation Control, Jeffrey S. Green Sep 1989

Donkeys For Predation Control, Jeffrey S. Green

Eastern Wildlife Damage Control Conference: 4th (1989)

Donkeys (Equus assinus) are described and their availability discussed. Key points which appear important in successfully using a donkey for reducing predation on livestock are presented.

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Zinc Phosphide Rodenticide Reduces Cotton Rat Populations In Florida Sugarcane, Nicholas R. Holler, David G. Decker Sep 1989

Zinc Phosphide Rodenticide Reduces Cotton Rat Populations In Florida Sugarcane, Nicholas R. Holler, David G. Decker

Eastern Wildlife Damage Control Conference: 4th (1989)

Rodents cause extensive damage to sugarcane (Saccharum spp. hybrids) in southern Florida (Samol 1972). Losses have been estimated as high as $235/ha (Lefebvre et al. 1978). Cotton rats (Sigmodon hispidus) and roof rats (Rattus rattus) are responsible for most of the damage (Holler et al. 1981). In-field treatment is required for effective reduction of rat populations because of the distribution and restricted movement patterns of rats within fields (Lefebvre et al. 1985a). Zinc phosphide (2%) baits are the only rodenticide baits registered for in-field use in Florida sugarcane. A preliminary test of in-crop aerial application …

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Depredation Permits For Migratory Birds, Larry L. Hood Sep 1989

Depredation Permits For Migratory Birds, Larry L. Hood

Eastern Wildlife Damage Control Conference: 4th (1989)

All of the native species of birds in the United States are protected by either federal or state laws. Under the Migratory Bird Treaty Act, the federal government has formulated regulations that assist in controlling protected species that cause economic damage or health hazards. These regulations are in Subpoint D of Part 21, Title 50 Code of Federal Regulations, and may take the form of standing depredation orders or permits issued to kill those species that cause problems.

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