Mussel farms drive species replacement through ecological drift and dispersal

Mussel farms can introduce disturbances to the diversity of soft bottom benthic macroinvertebrate communities. This study aimed to evaluate the ecological processes and mechanisms underlying responses from communities in two mussel farming areas in Chile, which is the largest exporter in the world....

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Main Authors: Cynthia Vásquez, Renato A. Quiñones, Oscar Díaz, Nicolas Rozbaczylo, Jorge Pérez-Schultheiss, Eduardo Hernández-Miranda
Format: Article
Language:English
Published: Elsevier 2025-02-01
Series:Environmental and Sustainability Indicators
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Online Access:http://www.sciencedirect.com/science/article/pii/S2665972724002472
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author Cynthia Vásquez
Renato A. Quiñones
Oscar Díaz
Nicolas Rozbaczylo
Jorge Pérez-Schultheiss
Eduardo Hernández-Miranda
author_facet Cynthia Vásquez
Renato A. Quiñones
Oscar Díaz
Nicolas Rozbaczylo
Jorge Pérez-Schultheiss
Eduardo Hernández-Miranda
author_sort Cynthia Vásquez
collection DOAJ
description Mussel farms can introduce disturbances to the diversity of soft bottom benthic macroinvertebrate communities. This study aimed to evaluate the ecological processes and mechanisms underlying responses from communities in two mussel farming areas in Chile, which is the largest exporter in the world. Alpha diversity indices, additive beta partitioning, and the Raup-Crick null model were employed for analysis. Results indicate a significant impact of mussel farming on both alpha and beta diversity, primarily through species replacement processes, and neutral mechanisms of ecological drift and dispersal. Alpha diversity decreased, and beta diversity increased near the farm areas with reduced hypoxic sediments. These results have conservation implications, especially considering that mussel farming in Chile is concentrated in regions with high levels of endemism. Because ecological drift is more pronounced in small communities with low dispersal potential, endemic and rare species are more susceptible to local extinction. A metacommunity and neutral approach should be integrated into future studies and environmental regulations to improve the assessment of the impacts of mussel farming on diversity.
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publishDate 2025-02-01
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series Environmental and Sustainability Indicators
spelling doaj-art-3cbc48ae604a497da576734ed1a2be912025-01-29T05:01:54ZengElsevierEnvironmental and Sustainability Indicators2665-97272025-02-0125100579Mussel farms drive species replacement through ecological drift and dispersalCynthia Vásquez0Renato A. Quiñones1Oscar Díaz2Nicolas Rozbaczylo3Jorge Pérez-Schultheiss4Eduardo Hernández-Miranda5Interdisciplinary Center for Aquaculture Research (INCAR), Universidad de Concepción, Concepción, Chile; Programa de Doctorado en Sistemática y Biodiversidad, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, ChileInterdisciplinary Center for Aquaculture Research (INCAR), Universidad de Concepción, Concepción, Chile; Departamento de Oceanografía, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, ChileFaunamar Ltda., Santiago, ChileFaunamar Ltda., Santiago, ChileÁrea Zoología de Invertebrados, Museo Nacional de Historia Natural de Chile, Santiago, ChileInterdisciplinary Center for Aquaculture Research (INCAR), Universidad de Concepción, Concepción, Chile; Departamento de Oceanografía, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile; Laboratorio de Investigación en Ecosistemas Acuáticos (LInEA), Concepción, Chile; Corresponding author. Universidad de Concepción, Concepción, Chile.Mussel farms can introduce disturbances to the diversity of soft bottom benthic macroinvertebrate communities. This study aimed to evaluate the ecological processes and mechanisms underlying responses from communities in two mussel farming areas in Chile, which is the largest exporter in the world. Alpha diversity indices, additive beta partitioning, and the Raup-Crick null model were employed for analysis. Results indicate a significant impact of mussel farming on both alpha and beta diversity, primarily through species replacement processes, and neutral mechanisms of ecological drift and dispersal. Alpha diversity decreased, and beta diversity increased near the farm areas with reduced hypoxic sediments. These results have conservation implications, especially considering that mussel farming in Chile is concentrated in regions with high levels of endemism. Because ecological drift is more pronounced in small communities with low dispersal potential, endemic and rare species are more susceptible to local extinction. A metacommunity and neutral approach should be integrated into future studies and environmental regulations to improve the assessment of the impacts of mussel farming on diversity.http://www.sciencedirect.com/science/article/pii/S2665972724002472MacroinvertebratesAlpha and beta diversityNeutralHypoxia and disturbance
spellingShingle Cynthia Vásquez
Renato A. Quiñones
Oscar Díaz
Nicolas Rozbaczylo
Jorge Pérez-Schultheiss
Eduardo Hernández-Miranda
Mussel farms drive species replacement through ecological drift and dispersal
Environmental and Sustainability Indicators
Macroinvertebrates
Alpha and beta diversity
Neutral
Hypoxia and disturbance
title Mussel farms drive species replacement through ecological drift and dispersal
title_full Mussel farms drive species replacement through ecological drift and dispersal
title_fullStr Mussel farms drive species replacement through ecological drift and dispersal
title_full_unstemmed Mussel farms drive species replacement through ecological drift and dispersal
title_short Mussel farms drive species replacement through ecological drift and dispersal
title_sort mussel farms drive species replacement through ecological drift and dispersal
topic Macroinvertebrates
Alpha and beta diversity
Neutral
Hypoxia and disturbance
url http://www.sciencedirect.com/science/article/pii/S2665972724002472
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