Variability of faecal microbiota and antibiotic resistance genes in flocks of migratory gulls and comparison with the surrounding environment.
Gulls commonly rely on human-generated waste as their primary food source, contributing to the spread of antibiotic-resistant bacteria and their resistance genes, both locally and globally. Our understanding of this process remains incomplete, particularly in relation to its potential interaction wi...
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Online Access: | https://doi.org/10.1016/j.envpol.2024.124563 https://pubmed.ncbi.nlm.nih.gov/39019307 |
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ftpubmed:39019307 2024-09-15T18:17:48+00:00 Variability of faecal microbiota and antibiotic resistance genes in flocks of migratory gulls and comparison with the surrounding environment. Jarma, Dayana Sacristán-Soriano, Oriol Borrego, Carles M Hortas, Francisco Peralta-Sánchez, Juan M Balcázar, José L Green, Andy J Alonso, Esteban Sánchez-Melsió, Alexandre Sánchez, Marta I 2024 Jul 15 https://doi.org/10.1016/j.envpol.2024.124563 https://pubmed.ncbi.nlm.nih.gov/39019307 eng eng Elsevier Science https://doi.org/10.1016/j.envpol.2024.124563 https://pubmed.ncbi.nlm.nih.gov/39019307 Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved. Environ Pollut ISSN:1873-6424 Volume:359 Antibiotic resistance genes Faecal microbiota Lesser black-backed gull Mobile genetic elements Movement ecology Spatial variation Journal Article 2024 ftpubmed https://doi.org/10.1016/j.envpol.2024.124563 2024-07-28T16:03:00Z Gulls commonly rely on human-generated waste as their primary food source, contributing to the spread of antibiotic-resistant bacteria and their resistance genes, both locally and globally. Our understanding of this process remains incomplete, particularly in relation to its potential interaction with surrounding soil and water. We studied the lesser black-backed gull, Larus fuscus, as a model to examine the spatial variation of faecal bacterial communities, antibiotic resistance genes (ARGs), and mobile genetic elements (MGEs) and its relationship with the surrounding water and soil. We conducted sampling campaigns within a connectivity network of different flocks of gulls moving across functional units (FUs), each of which represents a module of highly interconnected patches of habitats used for roosting and feeding. The FUs vary in habitat use, with some gulls using more polluted sites (notably landfills), while others prefer more natural environments (e.g., wetlands or beaches). Faecal bacterial communities in gulls from flocks that visit and spend more time in landfills exhibited higher richness and diversity. The faecal microbiota showed a high compositional overlap with bacterial communities in soil. The overlap was greater when compared to landfill (11%) than to wetland soils (6%), and much lower when compared to bacterial communities in surrounding water (2% and 1% for landfill and wetland water, respectively). The relative abundance of ARGs and MGEs were similar between FUs, with variations observed only for specific families of ARGs and MGEs. When exploring the faecal carriage of ARGs and MGEs in bird faeces relative to soil and water compartments, gull faeces were enriched in ARGs classified as High-Risk. Our results shed light on the complex dynamics of antibiotic resistance spread in wild bird populations, providing insights into the interactions among gull movement and feeding behavior, habitat characteristics, and the dissemination of antibiotic resistance determinants across environmental reservoirs. Article in Journal/Newspaper Lesser black-backed gull PubMed Central (PMC) Environmental Pollution 359 124563 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Antibiotic resistance genes Faecal microbiota Lesser black-backed gull Mobile genetic elements Movement ecology Spatial variation |
spellingShingle |
Antibiotic resistance genes Faecal microbiota Lesser black-backed gull Mobile genetic elements Movement ecology Spatial variation Jarma, Dayana Sacristán-Soriano, Oriol Borrego, Carles M Hortas, Francisco Peralta-Sánchez, Juan M Balcázar, José L Green, Andy J Alonso, Esteban Sánchez-Melsió, Alexandre Sánchez, Marta I Variability of faecal microbiota and antibiotic resistance genes in flocks of migratory gulls and comparison with the surrounding environment. |
topic_facet |
Antibiotic resistance genes Faecal microbiota Lesser black-backed gull Mobile genetic elements Movement ecology Spatial variation |
description |
Gulls commonly rely on human-generated waste as their primary food source, contributing to the spread of antibiotic-resistant bacteria and their resistance genes, both locally and globally. Our understanding of this process remains incomplete, particularly in relation to its potential interaction with surrounding soil and water. We studied the lesser black-backed gull, Larus fuscus, as a model to examine the spatial variation of faecal bacterial communities, antibiotic resistance genes (ARGs), and mobile genetic elements (MGEs) and its relationship with the surrounding water and soil. We conducted sampling campaigns within a connectivity network of different flocks of gulls moving across functional units (FUs), each of which represents a module of highly interconnected patches of habitats used for roosting and feeding. The FUs vary in habitat use, with some gulls using more polluted sites (notably landfills), while others prefer more natural environments (e.g., wetlands or beaches). Faecal bacterial communities in gulls from flocks that visit and spend more time in landfills exhibited higher richness and diversity. The faecal microbiota showed a high compositional overlap with bacterial communities in soil. The overlap was greater when compared to landfill (11%) than to wetland soils (6%), and much lower when compared to bacterial communities in surrounding water (2% and 1% for landfill and wetland water, respectively). The relative abundance of ARGs and MGEs were similar between FUs, with variations observed only for specific families of ARGs and MGEs. When exploring the faecal carriage of ARGs and MGEs in bird faeces relative to soil and water compartments, gull faeces were enriched in ARGs classified as High-Risk. Our results shed light on the complex dynamics of antibiotic resistance spread in wild bird populations, providing insights into the interactions among gull movement and feeding behavior, habitat characteristics, and the dissemination of antibiotic resistance determinants across environmental reservoirs. |
format |
Article in Journal/Newspaper |
author |
Jarma, Dayana Sacristán-Soriano, Oriol Borrego, Carles M Hortas, Francisco Peralta-Sánchez, Juan M Balcázar, José L Green, Andy J Alonso, Esteban Sánchez-Melsió, Alexandre Sánchez, Marta I |
author_facet |
Jarma, Dayana Sacristán-Soriano, Oriol Borrego, Carles M Hortas, Francisco Peralta-Sánchez, Juan M Balcázar, José L Green, Andy J Alonso, Esteban Sánchez-Melsió, Alexandre Sánchez, Marta I |
author_sort |
Jarma, Dayana |
title |
Variability of faecal microbiota and antibiotic resistance genes in flocks of migratory gulls and comparison with the surrounding environment. |
title_short |
Variability of faecal microbiota and antibiotic resistance genes in flocks of migratory gulls and comparison with the surrounding environment. |
title_full |
Variability of faecal microbiota and antibiotic resistance genes in flocks of migratory gulls and comparison with the surrounding environment. |
title_fullStr |
Variability of faecal microbiota and antibiotic resistance genes in flocks of migratory gulls and comparison with the surrounding environment. |
title_full_unstemmed |
Variability of faecal microbiota and antibiotic resistance genes in flocks of migratory gulls and comparison with the surrounding environment. |
title_sort |
variability of faecal microbiota and antibiotic resistance genes in flocks of migratory gulls and comparison with the surrounding environment. |
publisher |
Elsevier Science |
publishDate |
2024 |
url |
https://doi.org/10.1016/j.envpol.2024.124563 https://pubmed.ncbi.nlm.nih.gov/39019307 |
genre |
Lesser black-backed gull |
genre_facet |
Lesser black-backed gull |
op_source |
Environ Pollut ISSN:1873-6424 Volume:359 |
op_relation |
https://doi.org/10.1016/j.envpol.2024.124563 https://pubmed.ncbi.nlm.nih.gov/39019307 |
op_rights |
Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved. |
op_doi |
https://doi.org/10.1016/j.envpol.2024.124563 |
container_title |
Environmental Pollution |
container_volume |
359 |
container_start_page |
124563 |
_version_ |
1810455901347250176 |