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

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Title: Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass.
Authors: Muller, Alexandre1 (AUTHOR), Dubois, Stanislas F.1 (AUTHOR), Boyé, Aurélien1 (AUTHOR), Becheler, Ronan1 (AUTHOR), Droual, Gabin1,2 (AUTHOR), Chevalier, Mathieu1 (AUTHOR), Pasquier, Marine1 (AUTHOR), Roudaut, Loïg1 (AUTHOR), Fournier‐Sowinski, Jérôme3 (AUTHOR), Auby, Isabelle4 (AUTHOR), Nunes, Flávia L. D.1 (AUTHOR) flavia.nunes@ifremer.fr
Source: Ecology & Evolution (20457758). Nov2023, Vol. 13 Issue 11, p1-18. 18p.
Subject Terms: *Endangered species, *Species pools, *Ecosystems, *Tidal flats, Zostera marina, Structural equation modeling, Numbers of species, Turnover frequency (Catalysis)
Geographic Terms: France
Abstract: 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. [ABSTRACT FROM AUTHOR]
Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass.
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  Data: <searchLink fieldCode="AR" term="%22Muller%2C+Alexandre%22">Muller, Alexandre</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dubois%2C+Stanislas+F%2E%22">Dubois, Stanislas F.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Boyé%2C+Aurélien%22">Boyé, Aurélien</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Becheler%2C+Ronan%22">Becheler, Ronan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Droual%2C+Gabin%22">Droual, Gabin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chevalier%2C+Mathieu%22">Chevalier, Mathieu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pasquier%2C+Marine%22">Pasquier, Marine</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Roudaut%2C+Loïg%22">Roudaut, Loïg</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fournier‐Sowinski%2C+Jérôme%22">Fournier‐Sowinski, Jérôme</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Auby%2C+Isabelle%22">Auby, Isabelle</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nunes%2C+Flávia+L%2E+D%2E%22">Nunes, Flávia L. D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> flavia.nunes@ifremer.fr</i>
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  Data: <searchLink fieldCode="JN" term="%22Ecology+%26+Evolution+%2820457758%29%22">Ecology & Evolution (20457758)</searchLink>. Nov2023, Vol. 13 Issue 11, p1-18. 18p.
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  Data: *<searchLink fieldCode="DE" term="%22Endangered+species%22">Endangered species</searchLink><br />*<searchLink fieldCode="DE" term="%22Species+pools%22">Species pools</searchLink><br />*<searchLink fieldCode="DE" term="%22Ecosystems%22">Ecosystems</searchLink><br />*<searchLink fieldCode="DE" term="%22Tidal+flats%22">Tidal flats</searchLink><br /><searchLink fieldCode="DE" term="%22Zostera+marina%22">Zostera marina</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+equation+modeling%22">Structural equation modeling</searchLink><br /><searchLink fieldCode="DE" term="%22Numbers+of+species%22">Numbers of species</searchLink><br /><searchLink fieldCode="DE" term="%22Turnover+frequency+%28Catalysis%29%22">Turnover frequency (Catalysis)</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22France%22">France</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: 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. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=8gh&AN=173892520
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        Value: 10.1002/ece3.10159
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        Text: English
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        PageCount: 18
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      – SubjectFull: Endangered species
        Type: general
      – SubjectFull: Species pools
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      – SubjectFull: Ecosystems
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      – SubjectFull: Tidal flats
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      – SubjectFull: Zostera marina
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      – SubjectFull: Structural equation modeling
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      – SubjectFull: Numbers of species
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      – SubjectFull: France
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      – TitleFull: Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass.
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              Text: Nov2023
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