RT info:eu-repo/semantics/article T1 Anthropogenic debris pollution in yellow-legged gull (Larus michahellis atlantis) nests in biosphere reserves of the Canary Islands. A1 Arias Rodríguez, María de los Ángeles A1 Domínguez Hernández, Cristopher A1 Villanova Solano, Cristina A1 Álvarez Méndez, Sergio J. A1 Pestano, Miguel A1 Tejera, Gustavo A1 Díaz Peña, Francisco Javier A1 Hernández Borges, Javier A1 Hernández Sánchez, Cintia A2 Obstetricia y GinecologíaPediatría, Medicina Preventiva y Salud Pública, Toxicología y Medicina Legal y Forense y Parasitología A2 Grupo de Investigación en Química Analítica Aplicada Medicina Preventiva y Salud Pública K1 Plastic pollution K1 Waterbird K1 Seabird K1 Atlantic islands AB Anthropogenic debris, particularly plastic pollution, has emerged as a significant environmental threat tobiodiversity. Given that seabirds interact with artificial debris through ingestion, entanglement, and nestincorporation, it is particularly important to quantify the quantity, origins, and chemical composition of thesedebris items. In this work, it was evaluated for the first time the occurrence of anthropogenic debris in nests ofyellow-legged gull (Larus michahellis atlantis) in biosphere reserves of the Canary Islands (Spain). A total of 48abandoned nests were collected from five remote and hardly accessible sampling areas, revealing that 81.3 %contained anthropogenic waste, with plastic accounting for 34.7 % of the debris, followed by metal (33.6 %) and paper (19.6 %). On average, 32.8 ± 40.9 items were found per nest. Regarding the origin, food packagings (47.8%), personal hygiene products (21.7 %), and textiles (15.8 %) were identified as the predominant sources.Furthermore, the polymer composition of the plastics was characterised by means of Fourier-transform infraredspectroscopy analysis, being polyester the most abundant (38.2 %), followed by polyethylene (25.6 %) and rayon(10.3 %). The incorporation of anthropogenic debris into nest construction may result from outdoor humanactivities carried out far from nesting areas YR 2024 FD 2024 LK http://riull.ull.es/xmlui/handle/915/40098 UL http://riull.ull.es/xmlui/handle/915/40098 LA en DS Repositorio institucional de la Universidad de La Laguna RD 24-dic-2024