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Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass

Eelgrass supports diverse benthic communities that ensure a variety of ecosystem functions. To better understand the ecological processes that shape community composition in eelgrass at local and regional scales, taxonomic and functional α‐ and β‐diversity were quantified for communities inhabiting...

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Autores principales: Muller, Alexandre, Dubois, Stanislas F., Boyé, Aurélien, Becheler, Ronan, Droual, Gabin, Chevalier, Mathieu, Pasquier, Marine, Roudaut, Loïg, Fournier‐Sowinski, Jérôme, Auby, Isabelle, Nunes, Flávia L. D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10682608/
https://www.ncbi.nlm.nih.gov/pubmed/38034328
http://dx.doi.org/10.1002/ece3.10159
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author Muller, Alexandre
Dubois, Stanislas F.
Boyé, Aurélien
Becheler, Ronan
Droual, Gabin
Chevalier, Mathieu
Pasquier, Marine
Roudaut, Loïg
Fournier‐Sowinski, Jérôme
Auby, Isabelle
Nunes, Flávia L. D.
author_facet Muller, Alexandre
Dubois, Stanislas F.
Boyé, Aurélien
Becheler, Ronan
Droual, Gabin
Chevalier, Mathieu
Pasquier, Marine
Roudaut, Loïg
Fournier‐Sowinski, Jérôme
Auby, Isabelle
Nunes, Flávia L. D.
author_sort Muller, Alexandre
collection PubMed
description Eelgrass supports diverse benthic communities that ensure a variety of ecosystem functions. To better understand the ecological processes that shape community composition in eelgrass at local and regional scales, taxonomic and functional α‐ and β‐diversity were quantified for communities inhabiting five meadows in France. The extent to which environmental factors affected local and regional benthic communities was quantified by considering their direct and indirect effects (through morphological traits of eelgrass) using piecewise structural equation modeling (pSEM). Communities supported by eelgrass had higher species abundances, as well as taxonomic and functional diversity compared to nearby bare sediments. No significant differences were found between communities from the center relative to the edges of meadows, indicating that both habitats provide similar benefits to biodiversity. The presence of a few abundant species and traits suggests moderate levels of habitat filtering and close associations of certain species with eelgrass. Nevertheless, high turnover of a large number of rare species and traits was observed among meadows, resulting in meadows being characterized by their own distinct communities. High turnover indicates that much of the community is not specific to eelgrass, but rather reflects local species pools. pSEM showed that spatial variation in community composition (β‐diversity) was primarily affected by environmental conditions, with temperature, current velocity, and tidal amplitude being the most significant explanatory variables. Local richness and abundance (α‐diversity) were affected by both environment and morphological traits. Importantly, morphological traits of Zostera marina were also influenced by environmental conditions, revealing cascading effects of the environment on assemblages. In sum, the environment exerted large effects on community structure at both regional and local scales, while plant traits were only pertinent in explaining local diversity. This complex interplay of processes acting at multiple scales with indirect effects should be accounted for in conservation efforts that target the protection of biodiversity.
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spelling pubmed-106826082023-11-30 Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass Muller, Alexandre Dubois, Stanislas F. Boyé, Aurélien Becheler, Ronan Droual, Gabin Chevalier, Mathieu Pasquier, Marine Roudaut, Loïg Fournier‐Sowinski, Jérôme Auby, Isabelle Nunes, Flávia L. D. Ecol Evol Research Articles Eelgrass supports diverse benthic communities that ensure a variety of ecosystem functions. To better understand the ecological processes that shape community composition in eelgrass at local and regional scales, taxonomic and functional α‐ and β‐diversity were quantified for communities inhabiting five meadows in France. The extent to which environmental factors affected local and regional benthic communities was quantified by considering their direct and indirect effects (through morphological traits of eelgrass) using piecewise structural equation modeling (pSEM). Communities supported by eelgrass had higher species abundances, as well as taxonomic and functional diversity compared to nearby bare sediments. No significant differences were found between communities from the center relative to the edges of meadows, indicating that both habitats provide similar benefits to biodiversity. The presence of a few abundant species and traits suggests moderate levels of habitat filtering and close associations of certain species with eelgrass. Nevertheless, high turnover of a large number of rare species and traits was observed among meadows, resulting in meadows being characterized by their own distinct communities. High turnover indicates that much of the community is not specific to eelgrass, but rather reflects local species pools. pSEM showed that spatial variation in community composition (β‐diversity) was primarily affected by environmental conditions, with temperature, current velocity, and tidal amplitude being the most significant explanatory variables. Local richness and abundance (α‐diversity) were affected by both environment and morphological traits. Importantly, morphological traits of Zostera marina were also influenced by environmental conditions, revealing cascading effects of the environment on assemblages. In sum, the environment exerted large effects on community structure at both regional and local scales, while plant traits were only pertinent in explaining local diversity. This complex interplay of processes acting at multiple scales with indirect effects should be accounted for in conservation efforts that target the protection of biodiversity. John Wiley and Sons Inc. 2023-11-27 /pmc/articles/PMC10682608/ /pubmed/38034328 http://dx.doi.org/10.1002/ece3.10159 Text en © 2023 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Muller, Alexandre
Dubois, Stanislas F.
Boyé, Aurélien
Becheler, Ronan
Droual, Gabin
Chevalier, Mathieu
Pasquier, Marine
Roudaut, Loïg
Fournier‐Sowinski, Jérôme
Auby, Isabelle
Nunes, Flávia L. D.
Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass
title Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass
title_full Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass
title_fullStr Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass
title_full_unstemmed Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass
title_short Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass
title_sort environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10682608/
https://www.ncbi.nlm.nih.gov/pubmed/38034328
http://dx.doi.org/10.1002/ece3.10159
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