Effects of environmental filtering on taxonomic and functional diversity patterns: When spiders and plants provide complementary information to water level management in the Seine estuary

In the Seine estuary in northern France, many artificial structures limit the effect of the tide on associated alluvial zones. Consequently, this affects natural environmental filtering mechanisms linked to tidal regimes and water salinity, which directly influences the structure of organism assembl...

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Main Authors: Aurélien Ridel, Markus Neupert, Althéa Cadro, Julio Pedraza, Michael Aubert, Estelle Langlois, Julien Pétillon
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Ecological Indicators
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Online Access:http://www.sciencedirect.com/science/article/pii/S1470160X24014146
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author Aurélien Ridel
Markus Neupert
Althéa Cadro
Julio Pedraza
Michael Aubert
Estelle Langlois
Julien Pétillon
author_facet Aurélien Ridel
Markus Neupert
Althéa Cadro
Julio Pedraza
Michael Aubert
Estelle Langlois
Julien Pétillon
author_sort Aurélien Ridel
collection DOAJ
description In the Seine estuary in northern France, many artificial structures limit the effect of the tide on associated alluvial zones. Consequently, this affects natural environmental filtering mechanisms linked to tidal regimes and water salinity, which directly influences the structure of organism assemblies in adjacent ecosystems. Here, we propose to study the influence of these filters’ modifications on spiders and plants, two compartments recognized as complementary in terms of bioindication. However, this complementarity has only been studied to a limited extent and rarely in estuarine environments. To highlight this complementarity, we studied the taxonomic and functional patterns obtained across different topographical levels of two sites with contrasting water level managements. Moreover, particular attention was paid to the influence of the weight attributed to rare species (Q order) to shed light on processes affecting species dominance dynamics between taxa. Overall, spider communities appeared less influenced by environmental filtering than plants on both study sites, with taxonomic and functional diversity both demonstrating a low sensitivity to salinity. Spider community assemblies also demonstrated compositional shifts across study sites, mainly driven by changes in abundance and dominance. In contrast, plant communities appeared more sensitive to environmental constraints and water level management, with responses in terms of composition and species turnover rather than unbalanced abundance, suggesting responses at distinct spatial scales between plant and spider communities.
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spelling doaj-art-2f928f08b4964670be69af1182614cfd2025-08-20T02:49:06ZengElsevierEcological Indicators1470-160X2024-12-0116911295710.1016/j.ecolind.2024.112957Effects of environmental filtering on taxonomic and functional diversity patterns: When spiders and plants provide complementary information to water level management in the Seine estuaryAurélien Ridel0Markus Neupert1Althéa Cadro2Julio Pedraza3Michael Aubert4Estelle Langlois5Julien Pétillon6UMR CNRS 6553 Ecobio, Université de Rennes, 263 Avenue du Gal Leclerc, CS 74205, 35042 Rennes cedex, France; Corresponding author.Ecodiv USC INRAE 1499, University of Rouen Normandy, FranceUMR CNRS 6553 Ecobio, Université de Rennes, 263 Avenue du Gal Leclerc, CS 74205, 35042 Rennes cedex, FranceUMR CNRS 6553 Ecobio, Université de Rennes, 263 Avenue du Gal Leclerc, CS 74205, 35042 Rennes cedex, FranceEcodiv USC INRAE 1499, University of Rouen Normandy, FranceEcodiv USC INRAE 1499, University of Rouen Normandy, FranceUMR CNRS 6553 Ecobio, Université de Rennes, 263 Avenue du Gal Leclerc, CS 74205, 35042 Rennes cedex, France; Institute for Coastal and Marine Research, Nelson Mandela University, Port Elizabeth, South AfricaIn the Seine estuary in northern France, many artificial structures limit the effect of the tide on associated alluvial zones. Consequently, this affects natural environmental filtering mechanisms linked to tidal regimes and water salinity, which directly influences the structure of organism assemblies in adjacent ecosystems. Here, we propose to study the influence of these filters’ modifications on spiders and plants, two compartments recognized as complementary in terms of bioindication. However, this complementarity has only been studied to a limited extent and rarely in estuarine environments. To highlight this complementarity, we studied the taxonomic and functional patterns obtained across different topographical levels of two sites with contrasting water level managements. Moreover, particular attention was paid to the influence of the weight attributed to rare species (Q order) to shed light on processes affecting species dominance dynamics between taxa. Overall, spider communities appeared less influenced by environmental filtering than plants on both study sites, with taxonomic and functional diversity both demonstrating a low sensitivity to salinity. Spider community assemblies also demonstrated compositional shifts across study sites, mainly driven by changes in abundance and dominance. In contrast, plant communities appeared more sensitive to environmental constraints and water level management, with responses in terms of composition and species turnover rather than unbalanced abundance, suggesting responses at distinct spatial scales between plant and spider communities.http://www.sciencedirect.com/science/article/pii/S1470160X24014146Estuarine ecosystemSpidersPlantsTaxonomic diversityFunctional diversityRare species weight
spellingShingle Aurélien Ridel
Markus Neupert
Althéa Cadro
Julio Pedraza
Michael Aubert
Estelle Langlois
Julien Pétillon
Effects of environmental filtering on taxonomic and functional diversity patterns: When spiders and plants provide complementary information to water level management in the Seine estuary
Ecological Indicators
Estuarine ecosystem
Spiders
Plants
Taxonomic diversity
Functional diversity
Rare species weight
title Effects of environmental filtering on taxonomic and functional diversity patterns: When spiders and plants provide complementary information to water level management in the Seine estuary
title_full Effects of environmental filtering on taxonomic and functional diversity patterns: When spiders and plants provide complementary information to water level management in the Seine estuary
title_fullStr Effects of environmental filtering on taxonomic and functional diversity patterns: When spiders and plants provide complementary information to water level management in the Seine estuary
title_full_unstemmed Effects of environmental filtering on taxonomic and functional diversity patterns: When spiders and plants provide complementary information to water level management in the Seine estuary
title_short Effects of environmental filtering on taxonomic and functional diversity patterns: When spiders and plants provide complementary information to water level management in the Seine estuary
title_sort effects of environmental filtering on taxonomic and functional diversity patterns when spiders and plants provide complementary information to water level management in the seine estuary
topic Estuarine ecosystem
Spiders
Plants
Taxonomic diversity
Functional diversity
Rare species weight
url http://www.sciencedirect.com/science/article/pii/S1470160X24014146
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