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Evaluating Potential Effects of Widening US 64 on the Red Wolves in Washington, Tyrrell, and Dare Counties, North Carolina.
| 题名： | Evaluating Potential Effects of Widening US 64 on the Red Wolves in Washington, Tyrrell, and Dare Counties, North Carolina. |
| 关键词： | north；count；tial；dare；ects；arol；tent；agriculture；caro；lina |
| 摘要： | Information reported here is the result of a 2-year study evaluating red wolf (Canis rufus) habitat use and crossing patterns along US 64 from Columbia, NC east to the 64/264 intersection in Manns Harbor, NC. This report includes a problem statement and background information, evaluation of red wolf home range size and habitat selection, an analysis of probable effects to red wolf home range and habitat availability in the event of a highway widening, identification of current red wolf crossing locations, and suggestions for the location and type of crossing structures to mitigate potential adverse effects of a highway widening of US 64. We used data from 16 red wolves fitted with GPS-collars between January 2009 and April 2011 to evaluate home range size and habitat selection. Home range size for red wolves averaged 13.7 mi2 with no significant difference between males and females. Although we found no significant difference in home range size among age classes, dispersers tended to have larger home ranges than adults and juveniles. Red wolf home ranges were larger during winter than during other seasons. Red wolves avoided wetter habitats such as pocosins, wetlands, and lowland forests, leaving agriculture the best predictor of red wolf presence. Red wolves also selected for the presence of agriculture/forest road systems for travel. |
| 报告类型： | 科技报告 |
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