Consideration of mass effect processes in bioindication allows more accurate bioassessment of water quality

Bioassessment is widely used to measure ecological integrity of natural habitats following anthropogenic disturbances and modifications. Traditionally, bioassessment has been based exclusively on species-environment interactions, i.e. niche processes. However, dispersal processes, and in particular...

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Autores principales:	Thibault Leboucher, Lucas Mignien, Marie Wach, Sébastien Boutry, Aurélien Jamoneau, Sophia I. Passy, Juliette Tison-Rosebery
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Biological Diatom Index Bio-assessment Community assembly Diatoms Dispersal Mass effect Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/bdeb3d6f4b8e4190b9131a39928953c1
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spelling	oai:doaj.org-article:bdeb3d6f4b8e4190b9131a39928953c12021-12-01T04:53:43ZConsideration of mass effect processes in bioindication allows more accurate bioassessment of water quality1470-160X10.1016/j.ecolind.2021.107791https://doaj.org/article/bdeb3d6f4b8e4190b9131a39928953c12021-08-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21004568https://doaj.org/toc/1470-160XBioassessment is widely used to measure ecological integrity of natural habitats following anthropogenic disturbances and modifications. Traditionally, bioassessment has been based exclusively on species-environment interactions, i.e. niche processes. However, dispersal processes, and in particular mass effect, could mask the influence of niche processes and lead to erroneous conclusions about ecosystem health. To circumvent this problem, we identified 40 diatom species with distributions driven primarily by mass effect and propose an alternative version of the Biological Diatom Index (IBD2007) excluding these species. We tested the environmental responses of both the original IBD (IBD2007) and the modified IBD (IBDmod) with a benthic diatom dataset from France, collected between 2007 and 2013 and including 9487 samples from 3913 spatially distinct localities. Our results indicate a better relationship between the IBDmod scores and environmental conditions, compared to the IBD2007 scores, leading to a more accurate determination of river ecological status, especially in conditions of moderate nutrient enrichment. This study supports the idea that mass effect may result in biased evaluation of water quality. It is advocated that this process is considered in other diatom-based indices, and by extension, in any biotic index.Thibault LeboucherLucas MignienMarie WachSébastien BoutryAurélien JamoneauSophia I. PassyJuliette Tison-RoseberyElsevierarticleBiological Diatom IndexBio-assessmentCommunity assemblyDiatomsDispersalMass effectEcologyQH540-549.5ENEcological Indicators, Vol 127, Iss , Pp 107791- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biological Diatom Index Bio-assessment Community assembly Diatoms Dispersal Mass effect Ecology QH540-549.5
spellingShingle	Biological Diatom Index Bio-assessment Community assembly Diatoms Dispersal Mass effect Ecology QH540-549.5 Thibault Leboucher Lucas Mignien Marie Wach Sébastien Boutry Aurélien Jamoneau Sophia I. Passy Juliette Tison-Rosebery Consideration of mass effect processes in bioindication allows more accurate bioassessment of water quality
description	Bioassessment is widely used to measure ecological integrity of natural habitats following anthropogenic disturbances and modifications. Traditionally, bioassessment has been based exclusively on species-environment interactions, i.e. niche processes. However, dispersal processes, and in particular mass effect, could mask the influence of niche processes and lead to erroneous conclusions about ecosystem health. To circumvent this problem, we identified 40 diatom species with distributions driven primarily by mass effect and propose an alternative version of the Biological Diatom Index (IBD2007) excluding these species. We tested the environmental responses of both the original IBD (IBD2007) and the modified IBD (IBDmod) with a benthic diatom dataset from France, collected between 2007 and 2013 and including 9487 samples from 3913 spatially distinct localities. Our results indicate a better relationship between the IBDmod scores and environmental conditions, compared to the IBD2007 scores, leading to a more accurate determination of river ecological status, especially in conditions of moderate nutrient enrichment. This study supports the idea that mass effect may result in biased evaluation of water quality. It is advocated that this process is considered in other diatom-based indices, and by extension, in any biotic index.
format	article
author	Thibault Leboucher Lucas Mignien Marie Wach Sébastien Boutry Aurélien Jamoneau Sophia I. Passy Juliette Tison-Rosebery
author_facet	Thibault Leboucher Lucas Mignien Marie Wach Sébastien Boutry Aurélien Jamoneau Sophia I. Passy Juliette Tison-Rosebery
author_sort	Thibault Leboucher
title	Consideration of mass effect processes in bioindication allows more accurate bioassessment of water quality
title_short	Consideration of mass effect processes in bioindication allows more accurate bioassessment of water quality
title_full	Consideration of mass effect processes in bioindication allows more accurate bioassessment of water quality
title_fullStr	Consideration of mass effect processes in bioindication allows more accurate bioassessment of water quality
title_full_unstemmed	Consideration of mass effect processes in bioindication allows more accurate bioassessment of water quality
title_sort	consideration of mass effect processes in bioindication allows more accurate bioassessment of water quality
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/bdeb3d6f4b8e4190b9131a39928953c1
work_keys_str_mv	AT thibaultleboucher considerationofmasseffectprocessesinbioindicationallowsmoreaccuratebioassessmentofwaterquality AT lucasmignien considerationofmasseffectprocessesinbioindicationallowsmoreaccuratebioassessmentofwaterquality AT mariewach considerationofmasseffectprocessesinbioindicationallowsmoreaccuratebioassessmentofwaterquality AT sebastienboutry considerationofmasseffectprocessesinbioindicationallowsmoreaccuratebioassessmentofwaterquality AT aurelienjamoneau considerationofmasseffectprocessesinbioindicationallowsmoreaccuratebioassessmentofwaterquality AT sophiaipassy considerationofmasseffectprocessesinbioindicationallowsmoreaccuratebioassessmentofwaterquality AT juliettetisonrosebery considerationofmasseffectprocessesinbioindicationallowsmoreaccuratebioassessmentofwaterquality
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Consideration of mass effect processes in bioindication allows more accurate bioassessment of water quality

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