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Articles 5881 - 5910 of 6879

Full-Text Articles in Physical Sciences and Mathematics

Participants Sep 1985

Participants

Eastern Wildlife Damage Control Conference: 2nd (1985)

List of participants


An Evaluation Of Visual And Auditory Electronic Devices To Repel Deer, R. Blake Roper, Edward P. Hill Sep 1985

An Evaluation Of Visual And Auditory Electronic Devices To Repel Deer, R. Blake Roper, Edward P. Hill

Eastern Wildlife Damage Control Conference: 2nd (1985)

An electronic device that emitted auditory and visual stimuli was evaluated for repelling deer from hardwood plantations and soybean fields in Southwest Alabama from February 1976 through March 1978. Repellent effectiveness in hardwood plantations and in soybean fields was determined by comparing browsing damage on areas treated with the repellent stimuli against damage on control areas.

No difference (P < 0.05) was detected in browsing damage between treated and control areas in either hardwood plantations or soybean fields. Browsing damage on soybeans continued when electronic stimuli were combined with electric fences, human scent rags, and periodic shooting, demonstrating the high degree of adaptability of the white-tailed deer as they attempt to utilize an available food supply.


Computer Assisted Extension Program On Ground Squirrel Control, Terrell P. Salmon, Donald L. Lancaster, Leanne Lasarow Sep 1985

Computer Assisted Extension Program On Ground Squirrel Control, Terrell P. Salmon, Donald L. Lancaster, Leanne Lasarow

Eastern Wildlife Damage Control Conference: 2nd (1985)

Computers have become common place in virtually all phases of agriculture. Most individuals have access to microcomputers and the once apparent intimidation about using them is rapidly disappearing. Because of increased availability and public acceptance, it's no surprise that many Extension programs are using computers as an important component of their educational package. Recently, several computer models have been developed to assist Extension personnel and others in demonstrating proper wildlife damage control decision-making. We have developed such a model which is used to: 1) present ground squirrel control information to the grower, 2) take user (grower) input on production, yields, …


What You Wanted To Know About All You Ever Heard Concerning Snake Repellents, Gary J. San Julian Sep 1985

What You Wanted To Know About All You Ever Heard Concerning Snake Repellents, Gary J. San Julian

Eastern Wildlife Damage Control Conference: 2nd (1985)

Have you ever heard about a way to keep snakes away from your house? Many people in North Carolina have been told by their elders of various ways to repel snakes. When we first started working on this problem in North Carolina, we were amazed at the number of "home remedies" that people believed would protect their property from snakes; and we began to keep a record of these remedies. In 1981, a grant from the Pesticide Impact Assessment Program allowed us to begin to test some of these remedies to determine their value.


Deer Damage And Damage Control In Ohio's Nurseries, Orchards And Christmas Tree Plantings: The Grower's View, Joel D. Scott, Thomas W. Townsend Sep 1985

Deer Damage And Damage Control In Ohio's Nurseries, Orchards And Christmas Tree Plantings: The Grower's View, Joel D. Scott, Thomas W. Townsend

Eastern Wildlife Damage Control Conference: 2nd (1985)

A survey of white-tailed deer (Odocoileus virginianus) damage was conducted among growers (N = 2,236) of fruit, Christmas tree and nursery crops in Ohio; over 81% responded. Damage was reported by 43.1% of Christmas tree growers, 4l.3% of orchardists and 32.5% of nurserymen. Most commonly reported by orchardists as damaged were apples (Malus spp.)s by Christmas tree growers were white pines (Pinus strobus), and by nurserymen were maples (Acer spp.)o Young plants ( = 7.5 years) were more commonly damaged than older plants of all species. Seasonal damage was most common in spring …


Wildlife Damage Control - The Role And Responsibility Of The U.S. Fish And Wildlife Service, Leroy W. Sowl Sep 1985

Wildlife Damage Control - The Role And Responsibility Of The U.S. Fish And Wildlife Service, Leroy W. Sowl

Eastern Wildlife Damage Control Conference: 2nd (1985)

The doctrine of State ownership of wildlife was a part of the body of English common law transplanted to these shores by the original English settlers. The Crown conveyed ownership of many natural resources, and included wildlife in the patents it issued to the proprietors of plantations and colonies. When the provinces became States, they inherited ownership of wildlife.


Role And Responsibilities Of Agencies For Wildlife Damage Control, James E. Miller Sep 1985

Role And Responsibilities Of Agencies For Wildlife Damage Control, James E. Miller

Eastern Wildlife Damage Control Conference: 2nd (1985)

"A well balanced wildlife management program includes research, the acquisition of land, the development of habitat, the careful regulation of hunting or harvest, the protection of certain species, the enforcement of laws — and — the control of animal depredations. Though necessary, this is among the least popular and most controversial of the wildlife management functions. It is, nevertheless, one of the activities which a responsible agency must undertake." This statement is a direct quote from the International Association of Fish and Wildlife Agencies' (IAFWA) Position Paper on Animal Damage Control (1981).


Histoplasmosis And Its Impact On Blackbird/Starling Roost Management, A.R. Stickley Jr., R.J. Weeks Sep 1985

Histoplasmosis And Its Impact On Blackbird/Starling Roost Management, A.R. Stickley Jr., R.J. Weeks

Eastern Wildlife Damage Control Conference: 2nd (1985)

Histoplasmosis is a common and sometimes serious fungal disease that primarily affects the lungs, but can also involve other parts of the human body. The disease is characterized by 3 major forms: acute pulmonary, chronic cavitary, and disseminated histoplasmos is. Two fungicides are effective in treatment of the disease, but serious side effects often result. The occurrence of the fungus, Histoplasma capsulatum, is associated with large quantities of bird and bat excreta that have come in contact with soil. Roost sites must generally be occupied by birds for at least 3 years before soil conditions are conducive to its …


Utilizing A Computerized Fish And Wildlife Information System To Solve Animal Damage Control Problems, Jefferson L. Waldon, Charles T. Cushwa, Peter T. Bromley Sep 1985

Utilizing A Computerized Fish And Wildlife Information System To Solve Animal Damage Control Problems, Jefferson L. Waldon, Charles T. Cushwa, Peter T. Bromley

Eastern Wildlife Damage Control Conference: 2nd (1985)

Animal damage control professionals are faced with the monumental task of absorbing an enormous amount of literature about animal species. For example, one person cannot become an expert on all facets of dozens of species, much less the 1000 or more fish, reptiles, amphibians, mammals, and birds that fall under the wildlifer's jurisdiction. An important new aid to the wildlife damage control specialist is the computerized fish and wildlife information system (CFWIS). A CFWIS is a tool for systematically compiling and managing information about animal species which reside in a state. Cushwa and Kopf (1984) summarized the development of state …


Apparent Efficacy Of Bird Aircraft Strike Hazard Programs At Four Naval Air Stations, Thomas C. Walker, C. Willard Bennett Sep 1985

Apparent Efficacy Of Bird Aircraft Strike Hazard Programs At Four Naval Air Stations, Thomas C. Walker, C. Willard Bennett

Eastern Wildlife Damage Control Conference: 2nd (1985)

The Department of the Navy implemented its present mandatory bird-aircraft strike reporting system in 1981. Reported bird-aircraft strikes have increased each year, presumably due to increased awareness and compliance with regulations. Four Naval air stations implementing bird-aircraft strike hazard reduction programs in 1984 reported 57-78% fewer strikes in 1984 than in 1983.


Commercial Wildlife Pest Control Permits
—An Alternative Approach—
, Gerard W. Wendt
Sep 1985

Commercial Wildlife Pest Control Permits—An Alternative Approach—, Gerard W. Wendt

Eastern Wildlife Damage Control Conference: 2nd (1985)

The Pennsylvania Game Commission has, throughout our existence, tried many new approaches to solve our wildlife/ human conflicts. In recent years, the District Game Protector has been plagued with calls requesting help with nuisance wildlife, especially in the high population urban areas. While the law provides for methods of dealing with deer and bear which cause damage to crops and related materials, little is included to simplify the situation created by small mammal wildlife pests. With limited manpower available, which has been further complicated as a result of the Supreme Court ruling regarding the Fair Labor Standards Act and overtime …


Air Force Problems With Birds In Hangars, Timothy J. Will Sep 1985

Air Force Problems With Birds In Hangars, Timothy J. Will

Eastern Wildlife Damage Control Conference: 2nd (1985)

The Air Force's Bird-Aircraft Strike Hazard (BASH) Team has been dealing with bird hazards to aircraft for over ten years, primarily through awareness programs, direct assistance to military bases, and through R&D aimed at world-wide BASH reduction. As with any problem where a biological system (in this case, birds) is involved, diversification is important in developing solutions. The BASH Team has recommended a variety of methods for working with hazards from birds. One area of particular concern is the nuisance of pest birds in hangars. These structures are extremely alluring to birds, which seek the roof-supporting I-beams and bars for …


Economic And Environmental Impacts Of Beavers In North Carolina, David K. Woodward, Robert B. Hazel, Brian P. Gaffney Sep 1985

Economic And Environmental Impacts Of Beavers In North Carolina, David K. Woodward, Robert B. Hazel, Brian P. Gaffney

Eastern Wildlife Damage Control Conference: 2nd (1985)

In 1984, a postal survey of landowners and managers was conducted in North Carolina concerning the presence of beavers (Castor canadensis) on their property. Major objectives of the survey were to determine: (1) current distribution and relative abundance of beavers in North Carolina, (2) the economic and environmental impacts from an apparently increasing beaver population, and (3) landowner attitudes toward these increasing populations. Of the 1,069 questionnaires returned, data was compiled from 456 landowners (43 percent) who confirmed the presence of beaver activity on their property during 1983. A significant increase in beaver numbers and distribution has occurred throughout much …


The Role Of State And Wildlife Agencies In Wildlife Damage Control, Charles D. Kelly Sep 1985

The Role Of State And Wildlife Agencies In Wildlife Damage Control, Charles D. Kelly

Eastern Wildlife Damage Control Conference: 2nd (1985)

The Alabama Game and Fish Division is responsible for the stewardship of the wildlife and fisheries resources in the state. Within this context and the cooperative efforts with other agencies that have dealings with animal damage, the Division develops, permits, approves and administers control of both game and non-game (except migratory) species of wildlife.

Animal control complaints fall into two major areas - crop damage and nuisance animals. Nuisance animals, with some exceptions, are bats, armadillos, alligators, woodpeckers, snakes, birds that roost or nest in rookeries. Squirrels, bears, rabbits are the cause of both nuisanced crop damage complaints. Deer, beaver, …


Session Moderators Sep 1985

Session Moderators

Eastern Wildlife Damage Control Conference: 2nd (1985)

Session Moderators


Quantification Of Indian Rights: Problems Of Proof, Harry R. Sachse Jun 1985

Quantification Of Indian Rights: Problems Of Proof, Harry R. Sachse

The Federal Impact on State Water Rights (Summer Conference, June 11-13)

32 pages.


Pollution In The Mediterranean: A Regional Response, Antony O. Heimer May 1985

Pollution In The Mediterranean: A Regional Response, Antony O. Heimer

Marine Affairs Theses and Major Papers

Pollution of the Mediterranean Sea has been an issue of significant political, economic and environmental concern for more than a decade. It has more recently become a regional issue with politically diverse coastal states and a wide variety of international agencies implementing cooperative programs of scientific research, education and training, planning, and treaty drafting. Being a regional issue, the pollution problem has facilitated discussions between nations on several levels and governments have found it politically advantageous to use the issue for a variety of purposes.This paper will provide an overview of the Mediterranean pollution problem, covering the nature of the …


Environmental Perception And Its Impacts On The Tourist Industry: A Case Study Of The Niagara Region, Donna Marie Senese Jan 1985

Environmental Perception And Its Impacts On The Tourist Industry: A Case Study Of The Niagara Region, Donna Marie Senese

Theses and Dissertations (Comprehensive)

The natural resources of the Niagara Region of Ontario have played an important role in the success of the tourist industry in the region. The Niagara Region has been developed on an industrial and agricultural base since the nineteenth century. Due to conflicting demands of the manufacturing, agricultural and tourism industries for aesthetic, recreational and waste disposal purposes, the physical environment has deteriorated. The research problem of this thesis is to determine the extent of the effect of this deteriorated environment upon the tourist industry in the Niagara Region.

Physical inventories of resources are not adequate in terms of evaluating …


Livestock Guarding Dogs Protect Domestic Sheep From Coyote Predation In Kansas, William F. Andelt Dec 1984

Livestock Guarding Dogs Protect Domestic Sheep From Coyote Predation In Kansas, William F. Andelt

Great Plains Wildlife Damage Control Workshop Proceedings

Sheep (Ovis cries/ producers were surveyed in Kansas to determine the efficacy of livestock guarding dogs (Canis familiaris) for protecting sheep from coyote (Canis latrans) predation. The majority of producers rated their guard dogs' predator control performance as good or excellent, indicating. that the dogs reduced their reliance on other control methods and substantially reduced monetary losses.


A Proposal To Fertilize The Overton Arm And Gregg Basin Areas Of Lake Mead, Larry J. Paulson Nov 1984

A Proposal To Fertilize The Overton Arm And Gregg Basin Areas Of Lake Mead, Larry J. Paulson

Publications (WR)

Several limnological studies have been conducted in Lake Mead during the past decade. The recent studies clearly show that most of Lake Mead is deficient in nutrients, especially phosphorus, and very low in productivity. The reservoir-wide average total phosphorus concentration for 1981 - 1982 was only 9 mg/m3. This is below levels found In most oligotrophic lakes and reservoirs. Algal biomass, as measured by chlorophyll-a, averaged only 1.5 mg/m3. That also places Lake Mead in the oligotrophic range. Transparency, as measured by a Secchi disc, averaged 9-5 m in Lake Mead during 1981-1982. That far exceeds …


Success In Rat Control In Kuwait, K.S. Al-Sanei, T.M. Zaghloul, A.M. Salit, M.T. Omar, M.M. Balba Sep 1984

Success In Rat Control In Kuwait, K.S. Al-Sanei, T.M. Zaghloul, A.M. Salit, M.T. Omar, M.M. Balba

Vertebrate Pest Conference Proceedings: 11th (1984)

The preliminary rat survey prior to the actual attack phase of Rat Control Program in Kuwait revealed an infestation rate with the Norway rat, Rattus norveqicus, in buildings ranging between 32.7% and 70.7%. The comparatively high infestation was observed in 92.5% of Kuwait buildings. Moreover the infestation reached 99% in certain districts of the country. This high infestation was associated with an increase in rat-borne diseases particularly murine typhus, salmonellosis, rat-bite fever and certain parasitic diseases.

A programme for rodent control in Kuwait was initiated through a political decision by the cabinet which gave the full responsibility of rodent …


Hazards To Golden-Mantled Ground Squirrels And Associated Secondary Hazard Potential From Strychnine For Forest Secondary Pocket Gophers, R. Michael Anthony, Gerald D. Lindsey, James Evans Sep 1984

Hazards To Golden-Mantled Ground Squirrels And Associated Secondary Hazard Potential From Strychnine For Forest Secondary Pocket Gophers, R. Michael Anthony, Gerald D. Lindsey, James Evans

Vertebrate Pest Conference Proceedings: 11th (1984)

Radio telemetry and capture-recapture techniques were used to evaluate the hazards to golden-mantled ground squirrels ( Spermophilus lateralis) from hand baiting with 0.5% strychnine-treated for western pocket gophers (Thomomys mazama) on conifer plantations in eastern Oregon. Toxicology data were collected on field-killed and caged ground squirrels and on caged mink (Mustela vison, great horned owls (Bubo virginianus), and red-tailed hawks (Buteo jamaicensis). Ground squirrel populations were reduced 50% to 75% following underground baiting for pocket gophers. Maximum amount of strychnine found in cheek pouches and carcass of a field-killed golden-mantled ground …


Commingling Of Norway And Roof Rats With Native Rodents, Rex O. Baker Sep 1984

Commingling Of Norway And Roof Rats With Native Rodents, Rex O. Baker

Vertebrate Pest Conference Proceedings: 11th (1984)

The ecology of plague relies on the intermixing (commingling) of animal hosts and their ectoparasites. There has been a noticeable increase in commingling of rats and ground squirrels in Southern California in recent years. This paper discusses this phenomenon in Los Angeles and Orange Counties, where it occurs, how it results from man's activities, and the ecology of varying locations. The role of fleas as vectors of plague and the intermixing of fleas between hosts are discussed. Action to reduce the incidence of commingling and the threat of plague to the urban society is addressed.


Efficacy Of Three Anticoagulant Rodenticides For The Control Of Poison-Shy Rattus Rattus, Devendra Bhardwaj, Ishwar Prakash Sep 1984

Efficacy Of Three Anticoagulant Rodenticides For The Control Of Poison-Shy Rattus Rattus, Devendra Bhardwaj, Ishwar Prakash

Vertebrate Pest Conference Proceedings: 11th (1984)

House rats (Rattus rattus) which do not consume a lethal dose of zinc phosphide develop poison-shyness after a single exposure. The surviving poison-shy rats cannot be baited again with zinc phosphide for about three months. Poison-shy rats were separately given anticoagulant baits (brodifa-coum 0.005%, coumatetralyl and warfarin 0.025%) in no-choice tests. The first two anticoagulants were found to be the most efficient ones. It was observed that those R. rattus which had consumed 56.7 mg/kg or more zinc phosphide died sooner (P < 0.05 to 0.1) after anticoagulant poisoning when compared with normal rats. It is conjectured that prothrombin inhibition is accelerated in the liver of poison-shy R. rattus due to the action of phosphine present in the earlier ingested sublethal dose of …


Preliminary Investigations Of The Effectiveness Of Trimethacarb As A Bird Repellent In Developing Countries, R.L. Bruggers, P. Sultana, J.E. Brooks, L.A. Fiedler, M. Rimpel, S. Manikowski, N. Shivanarayan, N. Santhaiah, I. Okuno Sep 1984

Preliminary Investigations Of The Effectiveness Of Trimethacarb As A Bird Repellent In Developing Countries, R.L. Bruggers, P. Sultana, J.E. Brooks, L.A. Fiedler, M. Rimpel, S. Manikowski, N. Shivanarayan, N. Santhaiah, I. Okuno

Vertebrate Pest Conference Proceedings: 11th (1984)

Preliminary information on the effectiveness of trimethacarb as a bird repellent on broadcast seed and ripening crops was obtained during 1982 and 1983 from studies in Haiti, India, the Philippines, Bangladesh, Mali, and the United States. R50 and LD50 determinations for nine pest bird species to cereal crops in these countries indicated birds were not as sensitive to trimethacarb as to the avian repellent methiocarb. Rice and millet seed germination was not inhibited at 0.125 and 0.25% treatment levels. Wheat seed germinated well at treatments of ≤0.5% in Bangladesh. Sorghum seed did not germinate as well at any treatment level. …


Repellent Or Aversive Chemicals In Sheep Neck Collars Did Not Deter Coyote Attacks, Richard J. Burns, Guy E. Connolly, Richard E. Griffiths Jr. Sep 1984

Repellent Or Aversive Chemicals In Sheep Neck Collars Did Not Deter Coyote Attacks, Richard J. Burns, Guy E. Connolly, Richard E. Griffiths Jr.

Vertebrate Pest Conference Proceedings: 11th (1984)

Since 1974 the Fish and Wildlife Service has studied a "toxic collar" to poison coyotes that attack collared sheep and goats. The collar patent (McBride 1974) indicates that the same collar could deliver chemicals to repel coyotes, thus saving both the coyote and the livestock.

This report summarizes our experience with nonlethal tests of collars. During collar tests with 10 different toxicants, 21 coyotes received sublethal doses followed by aversive behavior or potentially aversive reactions. The subsequent predation history of these coyotes was examined for prey-avoidance. After a sublethal test, all coyotes killed lambs or kids in about 40 days, …


Opening Remarks—Eleventh Vertebrate Pest Conference, Dell O'Clark Sep 1984

Opening Remarks—Eleventh Vertebrate Pest Conference, Dell O'Clark

Vertebrate Pest Conference Proceedings: 11th (1984)

On behalf of the Vertebrate Pest Council, it is my pleasure to welcome all of you to Sacramento and to the 11th Vertebrate Pest Conference. The first Vertebrate Pest Conference was held 22 years ago here in Sacramento in 1962. The conference is now over two years into its third decade of existence. In all this time, the basic goals of the Conference have not changed; that is, to provide a basis for dissemination of information on vertebrate pests and their control. Some things have changed in these 22 years, most of which have been for the good. The first …


Vole Control In Field Crops, Jerry P. Clark Sep 1984

Vole Control In Field Crops, Jerry P. Clark

Vertebrate Pest Conference Proceedings: 11th (1984)

There are five species of meadow voles found in California. The two that are most economically important are Microtus californicus and Microtus montanus. Meadow vole populations are extremely cyclic, reaching a peak every four to six years. During these periods when the vole population is increasing in numbers, damage to crops like alfalfa, artichokes, potatoes, and sugar beets can occur. The best time to survey for vole activity is before the crop is planted. The grower or farm operator should look for vole activity in grassy borders around the crop or along roadsides and ditch bank areas. Snap-trapping may …


Conference Participants Sep 1984

Conference Participants

Vertebrate Pest Conference Proceedings: 11th (1984)

The Conference totaled 409 registered attendees. The participants came from 30 states, the District of Columbia, and 15 other countries: Bangladesh, Canada, Denmark, Finland, Germany (Federal Republic of), Hong Kong, Italy, Japan, Mexico, Nigeria, Tanzania, United Kingdom, and Zimbabwe. Students from Egypt and Taiwan were also in attendance. The wide representation from the United States and from countries throughout the world contributed to the success of the Conference by providing a highly diversified group for the exchange of ideas and information.


Performance Of Sodium Cyanide Ejectors, Guy Connnolly, Gary D. Simmons Sep 1984

Performance Of Sodium Cyanide Ejectors, Guy Connnolly, Gary D. Simmons

Vertebrate Pest Conference Proceedings: 11th (1984)

Performance of three models of sodium cyanide (NaCN) ejectors was evaluated at Port O'Connor, Texas, early in 1982. M-44s, M-50s, and coyote getters were test-pulled and reset at 7-day or 21-day intervals for 42 days. Each pull was recorded as good if, in our judgment, it would have taken a coyote. Based on 402 to 430 test pulls of each ejector model, the percentages of good pulls were 40% for M-50s, 73% for M-44s, and 99% for coyote getters. M-44s with shortened plungers performed better than standard M-44s.

Most pulls of M-50s resulted in ejection failure due to corrosion between …