Contrasting patterns of plastic ingestion and transport by an opportunistic gull across urban and agricultural landscapes

Over the past few decades, plastic production has increased significantly globally. These anthropogenic materials often enter terrestrial and marine ecosystems via various pathways. Recent studies highlight that seabird species, in special the opportunistic ones such as the yellow-legged gull (Larus...

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Authors: Oliveira, CF; Navarro, J; Garcia-Garin, O; Ramírez, F; Montalvo, T; Martín-Vélez, V
Format: Article
Status:Published version
Publication date:2026
Country:España
Institution:Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau)
Repository:r-IIB SANT PAU. Repositorio Institucional de Producción Científica del Instituto de Investigación Biomédica Sant Pau
OAI Identifier:oai:dnet:r-iibsantpa_::5a324d3a6ba533dec94e8059067f5a4d
Online Access:https://iibsantpau.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=21703
Access Level:Open access
Keyword:GPS tracking
Landfills
Pellet analysis
Plastic biovectoring
Plastic pollution
Yellow-legged gulls
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author Oliveira, CF
author2 Navarro, J
Garcia-Garin, O
Ramírez, F
Montalvo, T
Martín-Vélez, V
author2_role author
author
author
author
author
author_browse Garcia-Garin, O
Martín-Vélez, V
Montalvo, T
Navarro, J
Oliveira, CF
Ramírez, F
author_facet Oliveira, CF
Navarro, J
Garcia-Garin, O
Ramírez, F
Montalvo, T
Martín-Vélez, V
author_role author
collection r-IIB SANT PAU. Repositorio Institucional de Producción Científica del Instituto de Investigación Biomédica Sant Pau
description Over the past few decades, plastic production has increased significantly globally. These anthropogenic materials often enter terrestrial and marine ecosystems via various pathways. Recent studies highlight that seabird species, in special the opportunistic ones such as the yellow-legged gull (Larus michahellis), can act as biovectors, transporting plastic debris from landfills to protected or sensitive habitats, facilitating plastic leakage across ecosystems. However, the influence of plastic availability on the intensity and patterns of this biovectoring role has not yet been properly quantified. Here, we aimed to investigate the differences in the abundance and types of plastics ingested and transported by yellow-legged gulls from two colonies situated in contrasting human-related environments: a coastal urban city (Barcelona, Spain) and an inland agricultural area (Ivars Lake, Spain). We found plastics in 100% of pellets from the urban colony and in 56% from the inland colony, with higher plastic diversity and quantity in the urban population. By combining plastic analysis from pellets with GPS tracking data of 27 breeding yellow-legged gulls, we investigated how differences in the habitat use between both environments affect plastic exposure. Urban gulls were estimated to transport roughly ten times more plastic to their breeding area compared with the inland breeding gulls. These results highlight the important role of the coastal urban population as a biovector of plastics from the polluted habitats to the colonies.
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format article
id ES_ce18f0276e2d4e9f0dffe102412d377f
institution Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau)
instname_str Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau)
network_acronym_str ES
network_name_str España
oai_identifier_str oai:dnet:r-iibsantpa_::5a324d3a6ba533dec94e8059067f5a4d
publishDate 2026
publishDateSort 2026
publisher ACADEMIC PRESS INC ELSEVIER SCIENCE
publisherStr ACADEMIC PRESS INC ELSEVIER SCIENCE
reponame_str r-IIB SANT PAU. Repositorio Institucional de Producción Científica del Instituto de Investigación Biomédica Sant Pau
spelling Contrasting patterns of plastic ingestion and transport by an opportunistic gull across urban and agricultural landscapes Oliveira, CF Navarro, J Garcia-Garin, O Ramírez, F Montalvo, T Martín-Vélez, V GPS tracking Landfills Pellet analysis Plastic biovectoring Plastic pollution Yellow-legged gulls Over the past few decades, plastic production has increased significantly globally. These anthropogenic materials often enter terrestrial and marine ecosystems via various pathways. Recent studies highlight that seabird species, in special the opportunistic ones such as the yellow-legged gull (Larus michahellis), can act as biovectors, transporting plastic debris from landfills to protected or sensitive habitats, facilitating plastic leakage across ecosystems. However, the influence of plastic availability on the intensity and patterns of this biovectoring role has not yet been properly quantified. Here, we aimed to investigate the differences in the abundance and types of plastics ingested and transported by yellow-legged gulls from two colonies situated in contrasting human-related environments: a coastal urban city (Barcelona, Spain) and an inland agricultural area (Ivars Lake, Spain). We found plastics in 100% of pellets from the urban colony and in 56% from the inland colony, with higher plastic diversity and quantity in the urban population. By combining plastic analysis from pellets with GPS tracking data of 27 breeding yellow-legged gulls, we investigated how differences in the habitat use between both environments affect plastic exposure. Urban gulls were estimated to transport roughly ten times more plastic to their breeding area compared with the inland breeding gulls. These results highlight the important role of the coastal urban population as a biovector of plastics from the polluted habitats to the colonies. ACADEMIC PRESS INC ELSEVIER SCIENCE https://iibsantpau.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=21703
spellingShingle Contrasting patterns of plastic ingestion and transport by an opportunistic gull across urban and agricultural landscapes
Oliveira, CF
GPS tracking
Landfills
Pellet analysis
Plastic biovectoring
Plastic pollution
Yellow-legged gulls
status_str publishedVersion
title Contrasting patterns of plastic ingestion and transport by an opportunistic gull across urban and agricultural landscapes
title_full Contrasting patterns of plastic ingestion and transport by an opportunistic gull across urban and agricultural landscapes
title_fullStr Contrasting patterns of plastic ingestion and transport by an opportunistic gull across urban and agricultural landscapes
title_full_unstemmed Contrasting patterns of plastic ingestion and transport by an opportunistic gull across urban and agricultural landscapes
title_short Contrasting patterns of plastic ingestion and transport by an opportunistic gull across urban and agricultural landscapes
title_sort Contrasting patterns of plastic ingestion and transport by an opportunistic gull across urban and agricultural landscapes
topic GPS tracking
Landfills
Pellet analysis
Plastic biovectoring
Plastic pollution
Yellow-legged gulls
topic_facet GPS tracking
Landfills
Pellet analysis
Plastic biovectoring
Plastic pollution
Yellow-legged gulls
url https://iibsantpau.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=21703