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Evaluation of an Underpass Installed in U.S. Highway 30 at Nugget Canyon, Wyoming, for Migrating Mule Deer. Final rept.
| 题名： | Evaluation of an Underpass Installed in U.S. Highway 30 at Nugget Canyon, Wyoming, for Migrating Mule Deer. Final rept. |
| 作者： | Gordon-K.; Anderson-S. |
| 关键词： | *Underpasses-; *Highways-; *Accident-prevention; *Deers-; *Wildlife-management.;Motor-vehicle-accidents; Migration-; Evaluation-; Warning-systems; Reflectors-; Sensors-; Infrared-detectors; Video-cameras; Monitoring-; Animals-; Mortality-; Wyoming-. |
| 摘要： | A fifteen-mile stretch of U.S. Highway 30 through Nugget Canyon between Kemmerer and Cokeville, Wyoming bisects the migration route of a subunit of the Wyoming Range mule deer herd. Consequently, this highway is crossed by approximately 14,000 mule deer each fall and spring as they migrate between their winter range in Red Eye Basin and their summer range in the Wyoming Mountains. An average of 130 mule deer per year have been killed in deer-vehicle collisions since 1990. An underpass was installed in association with 8-foot-high deer-proof fence at milepost 30.5 in the summer of 2001 in an attempt to mitigate this problem. Starting in the fall of 2001 the Wyoming Cooperative Fish and Wildlife Research Unit (WCFWRU) conducted a study to evaluate mule deer activity at the underpass and to determine the optimal size and potential locations of future underpasses to be built in Nugget Canyon. We monitored the underpass using a videocamera system activated by infrared sensors to examine deer activity at the underpass. Starting in the spring of 2002, we initiated a series of trials in which we manipulated the size of the underpass using plywood dividers and gauged mule deer response to the underpass at different sizes. We collected data on the number of deer entering the underpass, the number of deer repelling from the underpass, the time needed for deer to enter the underpass, and behavioral indicators of hesitancy as deer approached the underpass. |
| 报告类型： | 科技报告 |
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