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Full-Text Articles in Environmental Health and Protection
Results Of Eight Years' Examination Of The Habitats Of Residual Urban Norway Rat Populations After Eradication, Daniel Bajomi, Katalin Sasvari
Results Of Eight Years' Examination Of The Habitats Of Residual Urban Norway Rat Populations After Eradication, Daniel Bajomi, Katalin Sasvari
Vertebrate Pest Conference Proceedings: 12th (1986)
In Budapest (population 2 million) 33 out of 100 buildings were rat-infested in the early seventies. Thus general deratization was decreed to cover the whole of the city in 1971 to 1972. As a result of the global eradication method applied, the rate of rat-infested premises could be reduced below 0.5% annually. After control the sparsely occurring rats could freely choose any of the habitats released for settling. The habitats of Budapest most preferred by Norway rats are presented after a wide-ranging investigation carried out over 8 years. Our examination data support and in some cases reveal the requirements of …
Barn Owls And Industry: Problems And Solutions, Lee R. Martin
Barn Owls And Industry: Problems And Solutions, Lee R. Martin
Vertebrate Pest Conference Proceedings: 12th (1986)
Three methods were explored to eliminate damage caused by owl pellets and fecal droppings: exclusion; trapping; and sound deterrents including abstract sound, biosonic sound, and high frequency sound. Initial successful results of various types of sound diminished with time to the point that owls adapted and ignored all sound repellents within a short period. Exclusion techniques were ineffective as owls would find ways around, through or between any non-permanent structure blocking entry through warehouse openings. Live-trapping and relocating owls was the only effective technique tested in this experimental program. Three trap methods were found effective, but trap success diminished with …
Protection With Vexar Cylinders From Damage By Meadow Voles Of Tree And Shrub Seedlings In Northeastern Alberta, Ronald W. Pauls
Protection With Vexar Cylinders From Damage By Meadow Voles Of Tree And Shrub Seedlings In Northeastern Alberta, Ronald W. Pauls
Vertebrate Pest Conference Proceedings: 12th (1986)
Vast areas of land will require reclamation and reforestation following oil sands development in northeastern Alberta. Greenhouse-grown tree and shrub seedlings used in reforestation may be clipped or girdled by meadow voles, especially during periods of high population density. The impact of partial girdling, the most common form of damage, varies among species. Reduced survival rates in seedlings girdled over as little as 50% of their circumference and reduced growth rates in seedlings girdled over as little as 25% of their circumference, have been noted. Plastic mesh cylinders (tradename Vexar) have proven effective in preventing seedling damage and durable in …