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Plant functional diversity is affected by weed management through processes of trait convergence and divergence
Weed management involving tillage and/or herbicides has generally led to a decline of plant diversity in agroecosystems, with negative impacts on ecosystem services provision. The use of plant covers has become the predominant alternative in vineyard management, with numerous studies focusing on ana...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9585284/ https://www.ncbi.nlm.nih.gov/pubmed/36275538 http://dx.doi.org/10.3389/fpls.2022.993051 |
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author | Guerra, Jose G. Cabello, Félix Fernández-Quintanilla, César Peña, José M. Dorado, José |
author_facet | Guerra, Jose G. Cabello, Félix Fernández-Quintanilla, César Peña, José M. Dorado, José |
author_sort | Guerra, Jose G. |
collection | PubMed |
description | Weed management involving tillage and/or herbicides has generally led to a decline of plant diversity in agroecosystems, with negative impacts on ecosystem services provision. The use of plant covers has become the predominant alternative in vineyard management, with numerous studies focusing on analyzing the advantages and disadvantages of plant covers compared to the aforementioned management. Although the impacts of weed management on taxonomic diversity have been widely studied, many gaps remain on their effects on plant functional diversity. As plant functional diversity is linked to the delivery of key ecosystem services in agroecosystems, understanding these effects could enable the development of more sustainable practices. From 2008 to 2018, a long-term trial was carried out in a Mediterranean vineyard to assess different agricultural practices. In this article, we examined how weed management, as well as irrigation use, could affect plant functional diversity. Based on 10 functional traits, such as plant height, specific leaf area or seed mass, we measured different indices of functional diversity and used null models to detect processes of trait convergence and divergence. Our results revealed that weed management and irrigation use had a significant effect on plant functional diversity. Mown plots showed the highest functional richness but were functionally convergent, since mowing was a strong functional filter on most of the traits. Tillage also behaved as a functional filter on some vegetative traits, but favored the divergence of certain reproductive traits. Herbicide-treated and irrigated plots showed the highest values of functional divergence by promoting more competitive species with more divergent trait values. The effect of weed management on these community assembly processes was shaped by the use of irrigation in vineyard rows, leading to functional divergence in those vegetative traits related to resource acquisition and seed mass. These results suggest that greater functional diversity may be associated with the bias caused by higher occurrence of competitive species (e.g. Convolvulus arvensis, Sonchus asper) with contrasting values for certain traits. Therefore, since these species are considered harmful to crops, higher plant functional diversity might not be a desirable indicator in agroecosystems. |
format | Online Article Text |
id | pubmed-9585284 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-95852842022-10-22 Plant functional diversity is affected by weed management through processes of trait convergence and divergence Guerra, Jose G. Cabello, Félix Fernández-Quintanilla, César Peña, José M. Dorado, José Front Plant Sci Plant Science Weed management involving tillage and/or herbicides has generally led to a decline of plant diversity in agroecosystems, with negative impacts on ecosystem services provision. The use of plant covers has become the predominant alternative in vineyard management, with numerous studies focusing on analyzing the advantages and disadvantages of plant covers compared to the aforementioned management. Although the impacts of weed management on taxonomic diversity have been widely studied, many gaps remain on their effects on plant functional diversity. As plant functional diversity is linked to the delivery of key ecosystem services in agroecosystems, understanding these effects could enable the development of more sustainable practices. From 2008 to 2018, a long-term trial was carried out in a Mediterranean vineyard to assess different agricultural practices. In this article, we examined how weed management, as well as irrigation use, could affect plant functional diversity. Based on 10 functional traits, such as plant height, specific leaf area or seed mass, we measured different indices of functional diversity and used null models to detect processes of trait convergence and divergence. Our results revealed that weed management and irrigation use had a significant effect on plant functional diversity. Mown plots showed the highest functional richness but were functionally convergent, since mowing was a strong functional filter on most of the traits. Tillage also behaved as a functional filter on some vegetative traits, but favored the divergence of certain reproductive traits. Herbicide-treated and irrigated plots showed the highest values of functional divergence by promoting more competitive species with more divergent trait values. The effect of weed management on these community assembly processes was shaped by the use of irrigation in vineyard rows, leading to functional divergence in those vegetative traits related to resource acquisition and seed mass. These results suggest that greater functional diversity may be associated with the bias caused by higher occurrence of competitive species (e.g. Convolvulus arvensis, Sonchus asper) with contrasting values for certain traits. Therefore, since these species are considered harmful to crops, higher plant functional diversity might not be a desirable indicator in agroecosystems. Frontiers Media S.A. 2022-10-07 /pmc/articles/PMC9585284/ /pubmed/36275538 http://dx.doi.org/10.3389/fpls.2022.993051 Text en Copyright © 2022 Guerra, Cabello, Fernández-Quintanilla, Peña and Dorado https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Plant Science Guerra, Jose G. Cabello, Félix Fernández-Quintanilla, César Peña, José M. Dorado, José Plant functional diversity is affected by weed management through processes of trait convergence and divergence |
title | Plant functional diversity is affected by weed management through processes of trait convergence and divergence |
title_full | Plant functional diversity is affected by weed management through processes of trait convergence and divergence |
title_fullStr | Plant functional diversity is affected by weed management through processes of trait convergence and divergence |
title_full_unstemmed | Plant functional diversity is affected by weed management through processes of trait convergence and divergence |
title_short | Plant functional diversity is affected by weed management through processes of trait convergence and divergence |
title_sort | plant functional diversity is affected by weed management through processes of trait convergence and divergence |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9585284/ https://www.ncbi.nlm.nih.gov/pubmed/36275538 http://dx.doi.org/10.3389/fpls.2022.993051 |
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