3 resultados para edentulous ridge expansion

em DigitalCommons@University of Nebraska - Lincoln


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Prairie dog (Cynomys ludovicianus) control has historically consisted of lethal methods to maintain, reduce, or eliminate populations in South Dakota and throughout the species range. Non-lethal methods of control are desired to meet changing management objectives for the black-tailed prairie dog. The use of naturally occurring buffer strips as vegetative barriers may be effective in limiting prairie dog town expansion. The objectives of this study were: 1) to evaluate effective width of vegetative barriers in limiting prairie dog towns expansion in western South Dakota; and 2) to document effect native vegetation height on expansion of prairie dog towns in western South Dakota. Five study sites were established in western South Dakota on rangelands containing prairie dog towns of adequate size. Electric fences were constructed for the purpose of excluding cattle and creating buffer strips of native grasses and shrubs. Prairie dogs were poisoned to create a prairie dog free buffer zone adjacent to active prairie dog towns. Grazing was allowed on both sides of the buffer strip. When grazing pressure was not sufficient, mowing was used to simulate grazing. Buffer strips were 100 meters long and 10, 25, and 40 meters in width. A zero meter control was included on all study sites. Quadrats (25) were randomly distributed throughout the buffer strips. Evaluation of study sites included visual obstruction, vegetation cover, vegetation frequency, vegetation height, and vegetation identification. Barrier penetration was evaluated by the presence of new active burrows behind vegetative barriers. Significant relationships were documented for both VOR and vegetation height. No significant difference was found between frequency of breakthroughs and buffer widths.

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Good morning. It's always a pleasure to visit western Nebraska with its wide open spaces, much of it filled with cattle. Cattle are tremendously important to Nebraska - it being our state's largest single industry. Nebraska boasts many more cattle than people - around 4 1/2 times more, counting all cattle and calves.

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The Memorial Stadium project will investigate the current conditions of facilities, study existing programs with regard to renovation and modification, and establish capacities for expansion. The project necessitates knowledge of sports facilities and the specific needs of the football program. This may involve research into the need of individuals ranging from the players themselves to the coaches, and ultimately the fans as well. The result will lead to a program which provides excellent solutions to the found needs. It is assumed that these needs will include updated training, locker room, and medical facilities for the athletes. Other programs include offices and meeting rooms for coaches, additional seating for fans—raising overall seating capacity of Memorial Stadium, as well as the possible addition of luxury skyboxes. Existing spaces will be scrutinized and renovation options will be explored. Programs may be changed or moved within the existing stadium spaces. Study will uncover the most feasible and reasonable solutions to programming spaces within the stadiums current facilities. This project will seek to connect the architecture of a stadium with the experience of the game. The design of athletic facilities and the addition of seating will embody the tradition of winning and the excitement of the future for Nebraska Football in Memorial Stadium. Mark Hoistad, mentor.