Disentangling the effect of space, time, and environmental and anthropogenic drivers on coastal macrobenthic β diversity in contrasting habitats over 15 years.
Coastal zones are biodiversity hotspots and deliver essential ecosystem functions and services, yet they are exposed to multiple and interacting anthropogenic and environmental constraints. The individual and cumulative effects of these constraints on benthic communities, a key component of coastal...
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ftpubmed:38889817 2024-09-15T18:24:47+00:00 Disentangling the effect of space, time, and environmental and anthropogenic drivers on coastal macrobenthic β diversity in contrasting habitats over 15 years. Toumi, Chirine Gauthier, Olivier Grall, Jacques Thiébaut, Éric Boyé, Aurélien 2024 Oct 10 https://doi.org/10.1016/j.scitotenv.2024.173919 https://pubmed.ncbi.nlm.nih.gov/38889817 eng eng Elsevier Science https://doi.org/10.1016/j.scitotenv.2024.173919 https://pubmed.ncbi.nlm.nih.gov/38889817 Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved. Sci Total Environ ISSN:1879-1026 Volume:946 Abiotic forcing Benthos Biogenic habitats Long-term monitoring Spatiotemporal dynamics Variation partitioning Journal Article 2024 ftpubmed https://doi.org/10.1016/j.scitotenv.2024.173919 2024-07-20T16:02:00Z Coastal zones are biodiversity hotspots and deliver essential ecosystem functions and services, yet they are exposed to multiple and interacting anthropogenic and environmental constraints. The individual and cumulative effects of these constraints on benthic communities, a key component of coastal ecosystems, and their variability across space and time, remains to be thoroughly quantified to guide conservation actions. Here, we explored how the presence of biogenic habitats influences the response of benthic communities to natural and anthropogenic constraints. We investigated this effect in both intertidal and subtidal habitats exposed to different pressures. We used data collected in the North-East Atlantic over 15 years (2005-2019) as part of the REBENT monitoring program, covering 38 sites of bare sediments, intertidal seagrass beds and maerl beds. We collected a range of environmental variables and proxies of anthropogenic pressures and used variation and hierarchical partitioning with redundancy analyses to estimate their relative effect on macrobenthic communities. We used descriptors modeling spatial and temporal structures (dbMEMs) to explore the scale of their effects and potential missing predictors. The selected variables explained between 53 % and 64 % of macrobenthic β diversity depending on habitat and depth. Fishing pressures, sedimentary and hydrodynamics variables stood out as the most important predictors across all habitats while proxies of anthropogenic pressures were overall more important in intertidal habitats. In the intertidal, presence of biogenic habitat strongly modulated the amount of explained variance and the identity of the selected variable. Across both tidal levels, analysis of models' residuals further indicated that biogenic habitats might mitigate the effect of extreme environmental events. Our study provides a hierarchy of the most important drivers of benthic communities across different habitats and tidal levels, emphasizing the prominence of anthropogenic pressures on intertidal communities and the role of biogenic habitats in mitigating environmental changes. Article in Journal/Newspaper North East Atlantic PubMed Central (PMC) Science of The Total Environment 946 173919 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Abiotic forcing Benthos Biogenic habitats Long-term monitoring Spatiotemporal dynamics Variation partitioning |
spellingShingle |
Abiotic forcing Benthos Biogenic habitats Long-term monitoring Spatiotemporal dynamics Variation partitioning Toumi, Chirine Gauthier, Olivier Grall, Jacques Thiébaut, Éric Boyé, Aurélien Disentangling the effect of space, time, and environmental and anthropogenic drivers on coastal macrobenthic β diversity in contrasting habitats over 15 years. |
topic_facet |
Abiotic forcing Benthos Biogenic habitats Long-term monitoring Spatiotemporal dynamics Variation partitioning |
description |
Coastal zones are biodiversity hotspots and deliver essential ecosystem functions and services, yet they are exposed to multiple and interacting anthropogenic and environmental constraints. The individual and cumulative effects of these constraints on benthic communities, a key component of coastal ecosystems, and their variability across space and time, remains to be thoroughly quantified to guide conservation actions. Here, we explored how the presence of biogenic habitats influences the response of benthic communities to natural and anthropogenic constraints. We investigated this effect in both intertidal and subtidal habitats exposed to different pressures. We used data collected in the North-East Atlantic over 15 years (2005-2019) as part of the REBENT monitoring program, covering 38 sites of bare sediments, intertidal seagrass beds and maerl beds. We collected a range of environmental variables and proxies of anthropogenic pressures and used variation and hierarchical partitioning with redundancy analyses to estimate their relative effect on macrobenthic communities. We used descriptors modeling spatial and temporal structures (dbMEMs) to explore the scale of their effects and potential missing predictors. The selected variables explained between 53 % and 64 % of macrobenthic β diversity depending on habitat and depth. Fishing pressures, sedimentary and hydrodynamics variables stood out as the most important predictors across all habitats while proxies of anthropogenic pressures were overall more important in intertidal habitats. In the intertidal, presence of biogenic habitat strongly modulated the amount of explained variance and the identity of the selected variable. Across both tidal levels, analysis of models' residuals further indicated that biogenic habitats might mitigate the effect of extreme environmental events. Our study provides a hierarchy of the most important drivers of benthic communities across different habitats and tidal levels, emphasizing the prominence of anthropogenic pressures on intertidal communities and the role of biogenic habitats in mitigating environmental changes. |
format |
Article in Journal/Newspaper |
author |
Toumi, Chirine Gauthier, Olivier Grall, Jacques Thiébaut, Éric Boyé, Aurélien |
author_facet |
Toumi, Chirine Gauthier, Olivier Grall, Jacques Thiébaut, Éric Boyé, Aurélien |
author_sort |
Toumi, Chirine |
title |
Disentangling the effect of space, time, and environmental and anthropogenic drivers on coastal macrobenthic β diversity in contrasting habitats over 15 years. |
title_short |
Disentangling the effect of space, time, and environmental and anthropogenic drivers on coastal macrobenthic β diversity in contrasting habitats over 15 years. |
title_full |
Disentangling the effect of space, time, and environmental and anthropogenic drivers on coastal macrobenthic β diversity in contrasting habitats over 15 years. |
title_fullStr |
Disentangling the effect of space, time, and environmental and anthropogenic drivers on coastal macrobenthic β diversity in contrasting habitats over 15 years. |
title_full_unstemmed |
Disentangling the effect of space, time, and environmental and anthropogenic drivers on coastal macrobenthic β diversity in contrasting habitats over 15 years. |
title_sort |
disentangling the effect of space, time, and environmental and anthropogenic drivers on coastal macrobenthic β diversity in contrasting habitats over 15 years. |
publisher |
Elsevier Science |
publishDate |
2024 |
url |
https://doi.org/10.1016/j.scitotenv.2024.173919 https://pubmed.ncbi.nlm.nih.gov/38889817 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
Sci Total Environ ISSN:1879-1026 Volume:946 |
op_relation |
https://doi.org/10.1016/j.scitotenv.2024.173919 https://pubmed.ncbi.nlm.nih.gov/38889817 |
op_rights |
Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved. |
op_doi |
https://doi.org/10.1016/j.scitotenv.2024.173919 |
container_title |
Science of The Total Environment |
container_volume |
946 |
container_start_page |
173919 |
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1810465204414185472 |