RT journal article T1 Biovectoring of plastic by white storks from a landfill to a complex of salt ponds and marshes A1 Cano-Povedano, Julián A1 López-Calderón, Cosme A1 Sánchez, Marta I. A1 Hortas Rodríguez-Pascual, Francisco A1 Cañuelo-Jurado, Belén A1 Martín-Vélez, Víctor A1 Ros Clemente, Macarena A1 Cózar Cabañas, Andrés A1 Green, Andy J. A2 Biología K1 Pollution K1 Ciconia ciconia K1 Waterbirds K1 Pellets K1 Waste dump K1 Wetlands AB Research into plastic pollution has extensively focused on abiotic vectors, overlooking transport by animals. Opportunistic birds, such as white storks (Ciconia ciconia) often forage on landfills, where plastic abounds. We assess plastic loading by ingestion and regurgitation of landfill plastic in Cadiz Bay, a major stopover area for migratory white storks in south-west Spain. On average, we counted 599 storks per day moving between a landfill and a complex of salt ponds and marshes, where they regurgitated pellets that each contained a mean of 0.47 g of plastic debris, dominated by polyethylene. Modelling reliant on GPS tracking estimated that 99 kg and >2 million particles of plastic were biovectored into the wetland during 2022, with seasonal peaks that followed migration patterns. GPS data enabled the correction of field censuses and the identification of plastic deposition hotspots. This study highlights the important role that biovectoring plays in plastic transport into coastal wetlands. PB Elsevier Ltd SN 1879-3363 YR 2023 FD 2023 LK http://hdl.handle.net/10498/31948 UL http://hdl.handle.net/10498/31948 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 15-nov-2026