We interviewed 21 sheep farmers and evaluated their electric fences to identify problems and determine efficacy of electric fences to prevent coyote (Canis latrans) predation. Modified woven wire fences and fences of 9 high-tensile smooth wires alternating charged and grounded were most effective in preventing coyote predation. The most serious problems in fence design and maintenance were a) b...

People construct fences to delineate land ownership and to control access to land. Fences accomplish several purposes, notable among them are containing livestock or wildlife raised for profit or subsistence, excluding use of vegetation within areas to be conserved, and reducing conflicts between wildlife and humans. In addition to these intended purposes, fences may also offer unanticipated be...

Transportation infrastructure impedes the movement of animals, enhances their mortality due to collisions with vehicles, and decreases habitat size. We study the first two effects, using a spatially explicit individual-based model of population dynamics. We discuss the suitability of fences. Fences can either enhance or reduce survival probability, depending on the degree of road avoidance and ...

White-tailed deer (Odocoileus virginianus) may cause more damage than any other species of wildlife. These damages include crop loss, automobile and aviation collisions, disease transmission, environmental degradation, and destruction of ornamental plantings. One practical method of controlling deer damage is the use of exclusionary fences. The relatively high cost of labor and materials requir...

Soil loss rates from construction sites can be 1000 times the average of natural soil erosion rates and 20 times that from agricultural lands. Silt fence (SF) is the current industry standard used to control sediment originating from construction activities. Silt fences are designed to act as miniature detention ponds. Research has indicated that SF sediment filtering efficiency is related to i...

Roads affect animal populations in three adverse ways. They act as barriers to movement, enhance mortality due to collisions with vehicles, and reduce the amount and quality of habitat. Putting fences along roads removes the problem of road mortality but increases the barrier effect. We studied this trade-off through a stochastic, spatially explicit, individual-based model of population dynamic...