Influence of local environmental gradients on ecological strategies of herbaceous communities in riverine side channels
Questions In riverine side channels (secondary and former arms), the alternation of lotic, lentic and dry phases produces disturbance and resource gradients that filter species and community strategies. To better understand the impact of this alternation of functioning on plant communities at a fine...
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| Veröffentlicht in: | Journal of vegetation science 2024-01, Vol.35 (1), p.1-n/a |
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| creator | Gaudichet, Corentin Greulich, Sabine Grellier, Séraphine Janssen, Philippe Rodrigues, Stéphane |
| description | Questions
In riverine side channels (secondary and former arms), the alternation of lotic, lentic and dry phases produces disturbance and resource gradients that filter species and community strategies. To better understand the impact of this alternation of functioning on plant communities at a fine spatial scale, we tested for the effects of elevation (linked to water level), slope, longitudinal position, light availability and sediment grain size on (i) taxonomic composition and (ii) competition, stress tolerance, and ruderal strategies (C, S and R strategies) at the community level. We hypothesized that fewer resources would increase the stress‐tolerant prevalence (i.e., community‐weighted mean value), while topographic gradients would affect ruderal prevalence. In addition, we hypothesized that strong and directional environmental filtering should reduce the co‐occurrence of species with different CSR strategy values (i.e., low C, S and R functional dispersion).
Location
Fourteen side channels on the lower reach of the Loire river (France).
Methods
Taxonomic composition of the herb layer and environmental variables were assessed on 474 plots. The relations between species composition and environmental gradients were investigated by a constrained analysis of principal coordinates. The effects of environmental gradients on community CSR strategies were assessed using mixed‐effects models and a model‐averaging procedure.
Results
Taxonomic community composition was shaped mainly by light availability, topographic elevation and sediment grain size. Slope and the interaction between light and elevation influenced the community‐weighted mean and functional dispersion values of S and R strategies. Among other interactions, those involving sediment grain size shaped the dispersion values for C and R strategies.
Conclusion
The study identified shading and fine sediment grain size as key drivers of biotic homogenization in the riverscape. Increasing the disturbance frequency and magnitude would limit the progression of the ecological succession and favor the co‐occurrence of taxonomically and functionally diverse communities within the side channels.
Former and secondary arms concentrate strong environmental gradients and plant diversity at fine spatial scale. The role of disturbance and stress‐related parameters for community structure and ecological strategies was assessed. Results highlighted five structuring parameters for taxonomic composition. Interactions |
| doi_str_mv | 10.1111/jvs.13227 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_hal_p</sourceid><recordid>TN_cdi_hal_primary_oai_HAL_hal_04438482v1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2932656588</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3667-70d7965111c82866a3eab4571df8f11eed446cb593bb45b75eeebe93ab75553d3</originalsourceid><addsrcrecordid>eNp1kT9PwzAQxSMEEqUw8A0sMTGktePYScaqAlpUiYE_q-U4l9ZVahc7adVvj0MQTHjxu_Pvns56UXRL8ISEM90e_ITQJMnOohHhLI0JwfQ8aIJxXCSUXkZX3m8xJlnBySg6Lk3ddGAUIFujxirZIDAH7azZgWlDtXay0kF6ZA0CZRu71j3lWydbWGvw_eQGXCkV2M4jZXe7zui2f9EGOX0Apw0grytAaiONgcZfRxe1bDzc_Nzj6P3x4W2-iFcvT8v5bBUrynkWZ7gKe7LwM5UnOeeSgixTlpGqzmtCAKo05apkBS1Du8wYAJRQUBkkY7Si4-h-8N3IRuyd3kl3ElZqsZitRN_DaUrzNE8OJLB3A7t39rMD34qt7ZwJ64mkoAlnnOX5n6Ny1nsH9a8twaLPQIQMxHcGgZ0O7FE3cPofFM8fr8PEFxOuigg</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2932656588</pqid></control><display><type>article</type><title>Influence of local environmental gradients on ecological strategies of herbaceous communities in riverine side channels</title><source>Wiley Online Library - AutoHoldings Journals</source><creator>Gaudichet, Corentin ; Greulich, Sabine ; Grellier, Séraphine ; Janssen, Philippe ; Rodrigues, Stéphane</creator><creatorcontrib>Gaudichet, Corentin ; Greulich, Sabine ; Grellier, Séraphine ; Janssen, Philippe ; Rodrigues, Stéphane</creatorcontrib><description>Questions
In riverine side channels (secondary and former arms), the alternation of lotic, lentic and dry phases produces disturbance and resource gradients that filter species and community strategies. To better understand the impact of this alternation of functioning on plant communities at a fine spatial scale, we tested for the effects of elevation (linked to water level), slope, longitudinal position, light availability and sediment grain size on (i) taxonomic composition and (ii) competition, stress tolerance, and ruderal strategies (C, S and R strategies) at the community level. We hypothesized that fewer resources would increase the stress‐tolerant prevalence (i.e., community‐weighted mean value), while topographic gradients would affect ruderal prevalence. In addition, we hypothesized that strong and directional environmental filtering should reduce the co‐occurrence of species with different CSR strategy values (i.e., low C, S and R functional dispersion).
Location
Fourteen side channels on the lower reach of the Loire river (France).
Methods
Taxonomic composition of the herb layer and environmental variables were assessed on 474 plots. The relations between species composition and environmental gradients were investigated by a constrained analysis of principal coordinates. The effects of environmental gradients on community CSR strategies were assessed using mixed‐effects models and a model‐averaging procedure.
Results
Taxonomic community composition was shaped mainly by light availability, topographic elevation and sediment grain size. Slope and the interaction between light and elevation influenced the community‐weighted mean and functional dispersion values of S and R strategies. Among other interactions, those involving sediment grain size shaped the dispersion values for C and R strategies.
Conclusion
The study identified shading and fine sediment grain size as key drivers of biotic homogenization in the riverscape. Increasing the disturbance frequency and magnitude would limit the progression of the ecological succession and favor the co‐occurrence of taxonomically and functionally diverse communities within the side channels.
Former and secondary arms concentrate strong environmental gradients and plant diversity at fine spatial scale. The role of disturbance and stress‐related parameters for community structure and ecological strategies was assessed. Results highlighted five structuring parameters for taxonomic composition. Interactions between them shaped ecological strategies. Moreover, sediment grain size and light deprivation along the inundation gradient were key drivers of niche homogenization.</description><identifier>ISSN: 1100-9233</identifier><identifier>EISSN: 1654-1103</identifier><identifier>DOI: 10.1111/jvs.13227</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc</publisher><subject>alluvial ecosystems ; Availability ; Biodiversity and Ecology ; Channels ; Community composition ; Composition ; Dispersion ; Ecological effects ; Ecological succession ; Ecology, environment ; Ecosystems ; Elevation ; Environmental effects ; environmental filters ; Environmental gradient ; Environmental Sciences ; functional dispersion ; Grain size ; Grime's CSR strategies ; Life Sciences ; Particle size ; Plant communities ; riparian zone ; river management ; Sediments ; Species composition ; strategy co‐occurrence ; Taxonomy ; terrestrialization process ; Topography ; Water levels</subject><ispartof>Journal of vegetation science, 2024-01, Vol.35 (1), p.1-n/a</ispartof><rights>2024 The Authors. published by John Wiley & Sons Ltd on behalf of International Association for Vegetation Science.</rights><rights>2024. This article is published under http://creativecommons.org/licenses/by-nc/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>Attribution - NonCommercial</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3667-70d7965111c82866a3eab4571df8f11eed446cb593bb45b75eeebe93ab75553d3</citedby><cites>FETCH-LOGICAL-c3667-70d7965111c82866a3eab4571df8f11eed446cb593bb45b75eeebe93ab75553d3</cites><orcidid>0000-0002-8145-2425 ; 0000-0002-4735-2957 ; 0000-0002-5519-125X ; 0000-0001-5678-6944 ; 0000-0003-3310-0078</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fjvs.13227$$EPDF$$P50$$Gwiley$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fjvs.13227$$EHTML$$P50$$Gwiley$$Hfree_for_read</linktohtml><link.rule.ids>230,314,778,782,883,1414,4012,27906,27907,27908,45557,45558</link.rule.ids><backlink>$$Uhttps://hal.science/hal-04438482$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Gaudichet, Corentin</creatorcontrib><creatorcontrib>Greulich, Sabine</creatorcontrib><creatorcontrib>Grellier, Séraphine</creatorcontrib><creatorcontrib>Janssen, Philippe</creatorcontrib><creatorcontrib>Rodrigues, Stéphane</creatorcontrib><title>Influence of local environmental gradients on ecological strategies of herbaceous communities in riverine side channels</title><title>Journal of vegetation science</title><description>Questions
In riverine side channels (secondary and former arms), the alternation of lotic, lentic and dry phases produces disturbance and resource gradients that filter species and community strategies. To better understand the impact of this alternation of functioning on plant communities at a fine spatial scale, we tested for the effects of elevation (linked to water level), slope, longitudinal position, light availability and sediment grain size on (i) taxonomic composition and (ii) competition, stress tolerance, and ruderal strategies (C, S and R strategies) at the community level. We hypothesized that fewer resources would increase the stress‐tolerant prevalence (i.e., community‐weighted mean value), while topographic gradients would affect ruderal prevalence. In addition, we hypothesized that strong and directional environmental filtering should reduce the co‐occurrence of species with different CSR strategy values (i.e., low C, S and R functional dispersion).
Location
Fourteen side channels on the lower reach of the Loire river (France).
Methods
Taxonomic composition of the herb layer and environmental variables were assessed on 474 plots. The relations between species composition and environmental gradients were investigated by a constrained analysis of principal coordinates. The effects of environmental gradients on community CSR strategies were assessed using mixed‐effects models and a model‐averaging procedure.
Results
Taxonomic community composition was shaped mainly by light availability, topographic elevation and sediment grain size. Slope and the interaction between light and elevation influenced the community‐weighted mean and functional dispersion values of S and R strategies. Among other interactions, those involving sediment grain size shaped the dispersion values for C and R strategies.
Conclusion
The study identified shading and fine sediment grain size as key drivers of biotic homogenization in the riverscape. Increasing the disturbance frequency and magnitude would limit the progression of the ecological succession and favor the co‐occurrence of taxonomically and functionally diverse communities within the side channels.
Former and secondary arms concentrate strong environmental gradients and plant diversity at fine spatial scale. The role of disturbance and stress‐related parameters for community structure and ecological strategies was assessed. Results highlighted five structuring parameters for taxonomic composition. Interactions between them shaped ecological strategies. Moreover, sediment grain size and light deprivation along the inundation gradient were key drivers of niche homogenization.</description><subject>alluvial ecosystems</subject><subject>Availability</subject><subject>Biodiversity and Ecology</subject><subject>Channels</subject><subject>Community composition</subject><subject>Composition</subject><subject>Dispersion</subject><subject>Ecological effects</subject><subject>Ecological succession</subject><subject>Ecology, environment</subject><subject>Ecosystems</subject><subject>Elevation</subject><subject>Environmental effects</subject><subject>environmental filters</subject><subject>Environmental gradient</subject><subject>Environmental Sciences</subject><subject>functional dispersion</subject><subject>Grain size</subject><subject>Grime's CSR strategies</subject><subject>Life Sciences</subject><subject>Particle size</subject><subject>Plant communities</subject><subject>riparian zone</subject><subject>river management</subject><subject>Sediments</subject><subject>Species composition</subject><subject>strategy co‐occurrence</subject><subject>Taxonomy</subject><subject>terrestrialization process</subject><subject>Topography</subject><subject>Water levels</subject><issn>1100-9233</issn><issn>1654-1103</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><sourceid>WIN</sourceid><recordid>eNp1kT9PwzAQxSMEEqUw8A0sMTGktePYScaqAlpUiYE_q-U4l9ZVahc7adVvj0MQTHjxu_Pvns56UXRL8ISEM90e_ITQJMnOohHhLI0JwfQ8aIJxXCSUXkZX3m8xJlnBySg6Lk3ddGAUIFujxirZIDAH7azZgWlDtXay0kF6ZA0CZRu71j3lWydbWGvw_eQGXCkV2M4jZXe7zui2f9EGOX0Apw0grytAaiONgcZfRxe1bDzc_Nzj6P3x4W2-iFcvT8v5bBUrynkWZ7gKe7LwM5UnOeeSgixTlpGqzmtCAKo05apkBS1Du8wYAJRQUBkkY7Si4-h-8N3IRuyd3kl3ElZqsZitRN_DaUrzNE8OJLB3A7t39rMD34qt7ZwJ64mkoAlnnOX5n6Ny1nsH9a8twaLPQIQMxHcGgZ0O7FE3cPofFM8fr8PEFxOuigg</recordid><startdate>202401</startdate><enddate>202401</enddate><creator>Gaudichet, Corentin</creator><creator>Greulich, Sabine</creator><creator>Grellier, Séraphine</creator><creator>Janssen, Philippe</creator><creator>Rodrigues, Stéphane</creator><general>Wiley Subscription Services, Inc</general><general>Wiley</general><scope>24P</scope><scope>WIN</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0002-8145-2425</orcidid><orcidid>https://orcid.org/0000-0002-4735-2957</orcidid><orcidid>https://orcid.org/0000-0002-5519-125X</orcidid><orcidid>https://orcid.org/0000-0001-5678-6944</orcidid><orcidid>https://orcid.org/0000-0003-3310-0078</orcidid></search><sort><creationdate>202401</creationdate><title>Influence of local environmental gradients on ecological strategies of herbaceous communities in riverine side channels</title><author>Gaudichet, Corentin ; Greulich, Sabine ; Grellier, Séraphine ; Janssen, Philippe ; Rodrigues, Stéphane</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3667-70d7965111c82866a3eab4571df8f11eed446cb593bb45b75eeebe93ab75553d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>alluvial ecosystems</topic><topic>Availability</topic><topic>Biodiversity and Ecology</topic><topic>Channels</topic><topic>Community composition</topic><topic>Composition</topic><topic>Dispersion</topic><topic>Ecological effects</topic><topic>Ecological succession</topic><topic>Ecology, environment</topic><topic>Ecosystems</topic><topic>Elevation</topic><topic>Environmental effects</topic><topic>environmental filters</topic><topic>Environmental gradient</topic><topic>Environmental Sciences</topic><topic>functional dispersion</topic><topic>Grain size</topic><topic>Grime's CSR strategies</topic><topic>Life Sciences</topic><topic>Particle size</topic><topic>Plant communities</topic><topic>riparian zone</topic><topic>river management</topic><topic>Sediments</topic><topic>Species composition</topic><topic>strategy co‐occurrence</topic><topic>Taxonomy</topic><topic>terrestrialization process</topic><topic>Topography</topic><topic>Water levels</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gaudichet, Corentin</creatorcontrib><creatorcontrib>Greulich, Sabine</creatorcontrib><creatorcontrib>Grellier, Séraphine</creatorcontrib><creatorcontrib>Janssen, Philippe</creatorcontrib><creatorcontrib>Rodrigues, Stéphane</creatorcontrib><collection>Wiley Online Library Open Access</collection><collection>Wiley Online Library Free Content</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Journal of vegetation science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gaudichet, Corentin</au><au>Greulich, Sabine</au><au>Grellier, Séraphine</au><au>Janssen, Philippe</au><au>Rodrigues, Stéphane</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of local environmental gradients on ecological strategies of herbaceous communities in riverine side channels</atitle><jtitle>Journal of vegetation science</jtitle><date>2024-01</date><risdate>2024</risdate><volume>35</volume><issue>1</issue><spage>1</spage><epage>n/a</epage><pages>1-n/a</pages><issn>1100-9233</issn><eissn>1654-1103</eissn><abstract>Questions
In riverine side channels (secondary and former arms), the alternation of lotic, lentic and dry phases produces disturbance and resource gradients that filter species and community strategies. To better understand the impact of this alternation of functioning on plant communities at a fine spatial scale, we tested for the effects of elevation (linked to water level), slope, longitudinal position, light availability and sediment grain size on (i) taxonomic composition and (ii) competition, stress tolerance, and ruderal strategies (C, S and R strategies) at the community level. We hypothesized that fewer resources would increase the stress‐tolerant prevalence (i.e., community‐weighted mean value), while topographic gradients would affect ruderal prevalence. In addition, we hypothesized that strong and directional environmental filtering should reduce the co‐occurrence of species with different CSR strategy values (i.e., low C, S and R functional dispersion).
Location
Fourteen side channels on the lower reach of the Loire river (France).
Methods
Taxonomic composition of the herb layer and environmental variables were assessed on 474 plots. The relations between species composition and environmental gradients were investigated by a constrained analysis of principal coordinates. The effects of environmental gradients on community CSR strategies were assessed using mixed‐effects models and a model‐averaging procedure.
Results
Taxonomic community composition was shaped mainly by light availability, topographic elevation and sediment grain size. Slope and the interaction between light and elevation influenced the community‐weighted mean and functional dispersion values of S and R strategies. Among other interactions, those involving sediment grain size shaped the dispersion values for C and R strategies.
Conclusion
The study identified shading and fine sediment grain size as key drivers of biotic homogenization in the riverscape. Increasing the disturbance frequency and magnitude would limit the progression of the ecological succession and favor the co‐occurrence of taxonomically and functionally diverse communities within the side channels.
Former and secondary arms concentrate strong environmental gradients and plant diversity at fine spatial scale. The role of disturbance and stress‐related parameters for community structure and ecological strategies was assessed. Results highlighted five structuring parameters for taxonomic composition. Interactions between them shaped ecological strategies. Moreover, sediment grain size and light deprivation along the inundation gradient were key drivers of niche homogenization.</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1111/jvs.13227</doi><tpages>16</tpages><orcidid>https://orcid.org/0000-0002-8145-2425</orcidid><orcidid>https://orcid.org/0000-0002-4735-2957</orcidid><orcidid>https://orcid.org/0000-0002-5519-125X</orcidid><orcidid>https://orcid.org/0000-0001-5678-6944</orcidid><orcidid>https://orcid.org/0000-0003-3310-0078</orcidid><oa>free_for_read</oa></addata></record> |
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| source | Wiley Online Library - AutoHoldings Journals |
| subjects | alluvial ecosystems Availability Biodiversity and Ecology Channels Community composition Composition Dispersion Ecological effects Ecological succession Ecology, environment Ecosystems Elevation Environmental effects environmental filters Environmental gradient Environmental Sciences functional dispersion Grain size Grime's CSR strategies Life Sciences Particle size Plant communities riparian zone river management Sediments Species composition strategy co‐occurrence Taxonomy terrestrialization process Topography Water levels |
| title | Influence of local environmental gradients on ecological strategies of herbaceous communities in riverine side channels |
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