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Cost Effective Wildlife Crossing Structures which Minimize the Highway Barrier on Wildlife and Improve Highway Safety along US 64, Tyrrell County, NC.
| 题名： | Cost Effective Wildlife Crossing Structures which Minimize the Highway Barrier on Wildlife and Improve Highway Safety along US 64, Tyrrell County, NC. |
| 关键词： | structure；barrier；improve；county；life；wild；which；long；alon；high |
| 摘要： | This report presents information on research conducted along US 64 from the City of Columbia east to the Alligator River in Tyrrell County, NC. The products of the study include a literature review, evaluation of habitat use and wildlife movement patterns, recommendations for need and locations of cost-effective wildlife crossing structures, and recommendations for additional cost effective design and construction measures to minimize adverse impacts to wildlife and increase highway safety. The need for wildlife crossing structures or other measures (to improve habitat connectivity and permeability of US 64 for wildlife) was evaluated by monitoring successful and unsuccessful (road-kills) animal movements across the highway. Multiple methods were applied to evaluate activity by different species adjacent to the highway. For instance, remotely operated cameras and tracking stations are effective in capturing presence of medium to large species, and drift fences/pitfall traps are effective in determining presence-absence of small mammals and herpetofauna. Trapping studies were important in determining potential avoidance by certain species to the road right-of-way. We performed road-kill surveys on the 13 mi segment of US 64. Track monitoring was conducted on 31 tracking strips placed at key locations adjacent to the highway. Mark-recapture studies were performed at four control locations in adjacent wildlife resource areas and at seven locations on the road right-of-way. Data was collected from April 2009 to July 2011. |
| 报告类型： | 科技报告 |
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