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Do dry ledges reduce the barrier effect of roads?

Villalva, Pablo; Reto, Dyana; Santos-Reis, Margarida; Revilla, Eloy; Grilo, Clara

Wildlife crossing structures combined with fencing seek to improve permeability and habitat connectivity across roads and reduce wildlife-vehicle collisions. However, the presence of water inside culverts can seriously limit their effectiveness. The implementation of dry ledges can be a good measure to allow crossing when flooded. So far, there is a lack of knowledge on the effectiveness of dry ledges combined ...


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