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This study finds 58% fewer wildlife mortalities from wildlife-vehicle collisions where underpasses and fencing are along highways, and provides additional insight for continuous fencing along highways.
Human-wildlife interactions such as injuries and wildlife disease outbreaks can be economically, socially, medically, and environmentally costly.
Roads have direct and indirect ecological impacts on wildlife, and vehicle collisions are one of the top impacts with regard to birds. Current available mortality estimates for birds are derived from one study, which prompted a literature review of 20 mortality rates extracted from 13 studies, which generated 4 separate estimates along with uncertainty from the different datasets.