Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 12 of 12
Full-Text Articles in Engineering
An Overview Of Animal Damage Control (Adc) Assistance To The Vertebrate Pest Management Industry, William H. Clay
An Overview Of Animal Damage Control (Adc) Assistance To The Vertebrate Pest Management Industry, William H. Clay
Proceedings of the Seventeenth Vertebrate Pest Conference 1996
The Animal Damage Control (ADC) program has had a long history dating back to 1885. ADC was officially established in 1931 under the United States Department of Agriculture. In 1939, the program was moved to the United States Department of Interior's Fish and Wildlife Service. In 1996, ADC was transferred back to the USDA and placed under the Animal and Plant Health Inspection Service. The mission of the Animal Damage Control program is to provide federal leadership in managing problems caused by wildlife. Current program assistance includes: a) technical assistance in wildlife management; b) conducting research and development activities related …
Effectiveness Of Vichos Non-Lethal Collars In Deterring Coyote Attacks On Sheep, J. Russell Mason, Richard J. Burns
Effectiveness Of Vichos Non-Lethal Collars In Deterring Coyote Attacks On Sheep, J. Russell Mason, Richard J. Burns
Proceedings of the Seventeenth Vertebrate Pest Conference 1996
Vichos non-lethal collars containing 45 to 105 ml of 3 % capsicum oleo resin were evaluated as deterrents to coyote attacks on sheep. Each of five coyotes tested made neck/throat attacks on one collared lamb; four punctured collars and one pulled the collar from a lamb without puncturing it. One coyote did not resume biting the lamb for 60 min; it was retested two and four days later. At two days, the coyote punctured a second collar and briefly halted its attack. At four days, the coyote attacked a third collared lamb but made no attempt to grasp the neck/throat …
Overhead Wires Reduce Roof-Nesting By Ring-Billed Gulls And Herring Gulls, Jerrold L. Belant, Sheri K. Ickes
Overhead Wires Reduce Roof-Nesting By Ring-Billed Gulls And Herring Gulls, Jerrold L. Belant, Sheri K. Ickes
Proceedings of the Seventeenth Vertebrate Pest Conference 1996
The authors evaluated the effectiveness of overhead wires in reducing roof-nesting by ring-billed gulls (Larus delawarensis) and herring gulls (L. argentatus) at a 7.2 ha food warehouse in Bedford Heights, Ohio during 1994-1995. In 1994, stainless steel wires (0.8 mm diameter) were attached generally in spoke-like configurations between 2.4 m upright metal poles spaced at 33.7 m intervals over the main portion of roof. The 6 to 14 wires radiating from each pole created a mean maximum spacing between wires of about 16 m. Nesting by ring-billed and herring gulls was reduced by 76% and 100% …
Economic Effectiveness, Efficiency, And Selectivity Of Fox Squirrel Trapping In Pecan Groves, J. Grant Huggins
Economic Effectiveness, Efficiency, And Selectivity Of Fox Squirrel Trapping In Pecan Groves, J. Grant Huggins
Proceedings of the Seventeenth Vertebrate Pest Conference 1996
Trapping is the most common damage management practice employed by pecan growers suffering fox squirrel (Sciurus niger) depredation. The author evaluated the economic effectiveness of foot-hold trapping fox squirrels in native pecan groves from 1988 to 1991. Trapping significantly reduced squirrel damage the first and second year of treatment in all three study areas relative to the initial untreated year. This reduction was valued at $38.63 to $279.51/ha. In 1990 the author tested the relative efficiency and selectivity of five trap types. Number 110 body traps performed with the best combination of efficiency, selectivity, and cost of the …
Federal And State Fish And Wildlife Regulations And Other Pertinent California Laws, Lee R. Martin
Federal And State Fish And Wildlife Regulations And Other Pertinent California Laws, Lee R. Martin
Proceedings of the Seventeenth Vertebrate Pest Conference 1996
Working knowledge of Federal and State Fish and Wildlife regulations and other laws are critical for today's commercial applicator in the vertebrate pest control business. The ever-changing focus on environmental protection, endangered species considerations, occupational health and safety, and animal rights have put vertebrate pest control operators in the precarious position of correctly interpreting the steady stream of laws and regulations passed by government. The consequences of failing to stay abreast of these changing regulations and correctly interpreting them can lead to very costly fines and possible imprisonment. Maintaining close contact with the many agencies that regulate the pest control …
Introducing The National Wildlife Research Center, Richard D. Curnow
Introducing The National Wildlife Research Center, Richard D. Curnow
Proceedings of the Seventeenth Vertebrate Pest Conference 1996
The paper summarizes the background and historical events leading to the creation of the National Wildlife Research Center (NWRC) and describes the status of its research program and facilities development in Fort Collins, Colorado. Also, the relationship of the NWRC to the Denver Wildlife Research Center is presented.
A Profile Of Depredating Mountain Lions, Steven D. Fairaizl, San Juan Stiver
A Profile Of Depredating Mountain Lions, Steven D. Fairaizl, San Juan Stiver
Proceedings of the Seventeenth Vertebrate Pest Conference 1996
Information regarding the demographics and physical condition of mountain lions (Felis concolof) killed during damage control efforts in Nevada was gathered and compared to sport harvested mountain lions. The average age of depredating male lions was 4.92 years of age compared to 4.95 years for sport harvested males. Depredating female lions were older than sport harvested females averaging 5.09 years compared to 4.44 years. Older age class mountain lions of both sexes were more likely to commit depredations than expected. Male lions were involved in depredations 45 % more often than females. Domestic sheep comprise more than 90% …
The Use Of Tip Traps To Control Rabbit Damage In Scotland, Robert M. E. Fuchs, W. Kenneth Maclean, Caroline A. Mackintosh, Iain M. Allan
The Use Of Tip Traps To Control Rabbit Damage In Scotland, Robert M. E. Fuchs, W. Kenneth Maclean, Caroline A. Mackintosh, Iain M. Allan
Proceedings of the Seventeenth Vertebrate Pest Conference 1996
The factors affecting efficient use of tip traps to control rabbit populations were investigated in a series of field experiments. It was found that continual trapping at the same location was much less effective than periodic trapping. Night-time trapping operations produced larger catches of rabbits than day-time trapping. Traps were equally effective whether sited on existing runs through rabbit proof fences or on previously unbreached sections of fence. The sex ratio of rabbits caught was examined at four different locations and, in each instance, more females were caught than males. The installation of a network of tip traps and associated …
Results Of A Non-Lethal Survey And Report Provided To The New Mexico Legislature, J. Alan May
Results Of A Non-Lethal Survey And Report Provided To The New Mexico Legislature, J. Alan May
Proceedings of the Seventeenth Vertebrate Pest Conference 1996
Social and political pressures affect decision making regarding wildlife damage management issues tremendously. In fact, these areas are included in the Animal Damage Control decision model outlined in the programmatic Environmental Impact Statement. Growing concern regarding pain and suffering of animals trapped by ADC Specialists prompted two actions by the 41st Legislature of the State of New Mexico in 1994. The legislature directed New Mexico ADC not to spend over three-quarters of its $304,000 appropriation on lethal methods. The legislature also passed a memorial bill requesting the New Mexico Department of Game and Fish, in cooperation with the U.S. Fish …
Assessment Of The Environmental Impact Of Brodifacoum During Rodent Eradication Operations In New Zealand, D. R. Morgan, G. R. Wright, S. C. Ogilvie, R. Pierce, P. Thomson
Assessment Of The Environmental Impact Of Brodifacoum During Rodent Eradication Operations In New Zealand, D. R. Morgan, G. R. Wright, S. C. Ogilvie, R. Pierce, P. Thomson
Proceedings of the Seventeenth Vertebrate Pest Conference 1996
Although Talon® baits containing brodifacoum have been used successfully in eradicating rats from some of New Zealand's offshore islands, little is known about any environmental effects of this toxin. Invertebrates, blackbirds, soil, and water at intervals of two days to nine months were sampled to determine whether brodifacoum residues were present after aerial distribution of Talon® 20P cereal pellets on Red Mercury Island and after bait-station use of Talon® 50WB wax-coated cereal blocks on Coppermine Island. No brodifacoum residues were found in soil, water, or most (99 %) invertebrate samples. Low concentrations (0.12 /μg/g) were found in …
Effects Of Stage Of Nut Development And Simulated Rat Damage On Macadamia Yields, Mark E. Tobin, Ann E. Koehler, Robert T. Sugfflara, Richard M. Engeman
Effects Of Stage Of Nut Development And Simulated Rat Damage On Macadamia Yields, Mark E. Tobin, Ann E. Koehler, Robert T. Sugfflara, Richard M. Engeman
Proceedings of the Seventeenth Vertebrate Pest Conference 1996
Black rats (Rattus rattus) cause extensive damage in Hawaiian macadamia (Macadamia integrifolia) orchards. In a previous study, extensive and persistent snap trapping significantly reduced rat populations and depredations on developing macadamia nuts, but had little effect on subsequent yields of mature nuts. This suggested that macadamia trees may compensate for rat damage, and that commonly used indices based on rodent activity and proportion of nuts damaged may overestimate the impact of rodent depredations and exaggerate the effectiveness of control measures. To clarify the effects of rat feeding on developing macadamia nuts, two levels of damage at …
Techniques And Expertise In Wildlife Damage Control: A Survey Among The National Animal Damage Control Association (Nadca) Membership, Dallas R. Virchow, J. Russell Mason
Techniques And Expertise In Wildlife Damage Control: A Survey Among The National Animal Damage Control Association (Nadca) Membership, Dallas R. Virchow, J. Russell Mason
Proceedings of the Seventeenth Vertebrate Pest Conference 1996
The membership of the National Animal Damage Control Association (NADCA) was surveyed during 1995 to collect information about specialty fields, preferred methods and experience. Respondents had broad experience that included 44 species or species groups. Members reported firsthand experience with an average of 17.6 different species and 2.9 vertebrate groups. Forty-three percent indicated that their specialization was among carnivores. In this group, coyotes, Canis latrans (45%), raccoon, Procyon lotor (23%) and skunk (13%) were most frequently mentioned. Members reporting carnivore experience had firsthand experience with an average of five different species. Rural and urban members did not significantly differ in …