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- W81193243 abstract "The authors used data from 16 red wolves fitted with Global Positioning System (GPS)-collars between January 2009 and April 2011 to evaluate home range size and habitat selection, road permeability, and identify significant red wolf highway crossing locations. Home range size for red wolves averaged 13.7 mi² with no significant difference between males and females. Although the authors 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. Road permeability, calculated using GPS-collar data, was 100%, thus the current 2- lane highway does not impose a barrier effect on the red wolf population. This increases the risk of road mortality events. Using a 3281 ft. (1 km) buffer, construction north of the current US 64 in Tyrrell County has the potential to remove up to 0.16 mi² of red wolf habitat and 6% of the home range area used by a current red wolf pack while construction to the south will impact only 0.09 mi² of red wolf habitat and will not displace any current red wolf packs. East of Alligator River in Dare County, a widening of the current highway to the south has the potential to remove up to of 0.07 mi² of red wolf habitat and 20% of the home range used by the only existing red wolf pack in Alligator River National Wildlife Refuge if construction disturbs out to 3281 ft. (1 km) from the current road. Construction to the north of US 64 in Dare County has the potential to remove up to 0.04 mi² of red wolf habitat and will not overlap with any current packs, based on 95% home ranges. Through the use of GPS-collars and remote camera traps, we identified 5 important red wolf crossing locations, 4 in Tyrrell County west of Alligator River and 1 in Dare County east of Alligator River. The presence of agricultural fields, successional fields, and/or upland forests 328 to 492 ft. from the road provided the most parsimonious explanation for the location of crossing sites identified using GPS-collar locations; trail/road width provided the best explanation for the location of crossing sites identified by remote camera traps. The presence of agricultural fields, successional fields, and upland forests as well as proximity to maintained agricultural/forest roads at crossing sites corresponds to habitat selection results. Four of the 5 red wolf crossing locations the authors identified are suitable for crossing structures. The most western crossing site is located within the town of Colombia, NC where retro-fitting a wildlife underpass is not practical. Well maintained trails at least 26.24 ft. (8 m) in width leading to and from underpasses, which connect habitats selected for by red wolves (e.g. agriculture, successional fields, and upland forests), is suggested to optimize efficacy." @default.
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- W81193243 date "2011-12-31" @default.
- W81193243 modified "2023-10-14" @default.
- W81193243 title "Evaluating Potential Effects of Widening US 64 on Red Wolves in Washington, Tyrrell, and Dare Counties, North Carolina" @default.
- W81193243 hasPublicationYear "2011" @default.
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