Ecological quality assessment: A framework to report ecosystems quality and their dynamics from reference conditions

Abstract Worldwide, ecosystems are suffering important taxonomic and functional modifications in response to anthropogenic disturbances, operating at multiple spatial and temporal scales. Awareness on biodiversity losses has led to the adoption of conservation policies and the development of program...

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Main Authors: Anthony Sturbois, Miquel De Cáceres, Aline Bifolchi, Frédéric Bioret, Aurélien Boyé, Olivier Gauthier, Jacques Grall, Antoine Grémare, Céline Labrune, Alexandre Robert, Gauthier Schaal, Nicolas Desroy
Format: Article
Language:English
Published: Wiley 2023-12-01
Series:Ecosphere
Subjects:
Online Access:https://doi.org/10.1002/ecs2.4726
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author Anthony Sturbois
Miquel De Cáceres
Aline Bifolchi
Frédéric Bioret
Aurélien Boyé
Olivier Gauthier
Jacques Grall
Antoine Grémare
Céline Labrune
Alexandre Robert
Gauthier Schaal
Nicolas Desroy
author_facet Anthony Sturbois
Miquel De Cáceres
Aline Bifolchi
Frédéric Bioret
Aurélien Boyé
Olivier Gauthier
Jacques Grall
Antoine Grémare
Céline Labrune
Alexandre Robert
Gauthier Schaal
Nicolas Desroy
author_sort Anthony Sturbois
collection DOAJ
description Abstract Worldwide, ecosystems are suffering important taxonomic and functional modifications in response to anthropogenic disturbances, operating at multiple spatial and temporal scales. Awareness on biodiversity losses has led to the adoption of conservation policies and the development of programs devoted to the conservation and the restoration of terrestrial, freshwater, and marine ecosystems. The assessment of the ecological health of ecosystems requires measuring and characterizing restoration or degradation dynamics and their consequences on the ecological quality with respect to reference conditions defined pragmatically as conservation targets. Methodological innovations, in terms of data collection, analysis, and visualization, have an important influence on the ability of ecologists to understand biodiversity changes. The assessment of the quality of ecosystems with respect to reference conditions requires to address, notably, three main challenges: the definition of reference conditions, the assessment of the degree of achievement of conservation objectives, and the qualitative and quantitative characterization of recovering and departing patterns. We propose here the ecological quality assessment (EQA) framework as a data‐driven approach to track ecological quality focusing on the distance of the tested stations with respect to a chosen reference envelope using fuzzy logic and trajectory analysis. We take advantage of those analytical tools to propose a general and flexible multivariate framework by quantifying the achievement of reference conditions, measuring restoration and degradation dynamics when temporal series are available, and representing and synthesizing this information. To take into account the natural spatiotemporal variability of sites considered as reference, we gave two variants to our framework: a state‐based variant when no temporal replications are available and a trajectory‐based variant specially devoted to compare whole trajectories to a trajectory reference envelope defined by a set of reference trajectories. These two complementary approaches were illustrated through two terrestrial and marine ecological applications using the R package “ecotraj” in order to evidence ecological observations that meet conservation objectives from those that do not meet them. EQA constitutes a flexible framework for the assessment and reporting of ecosystem quality, including restoration and degradation dynamics adaptable to multiple questions in the different fields of ecology and conservation.
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spelling doaj.art-8f21915609af4700be2311f8a7101f802023-12-27T23:58:35ZengWileyEcosphere2150-89252023-12-011412n/an/a10.1002/ecs2.4726Ecological quality assessment: A framework to report ecosystems quality and their dynamics from reference conditionsAnthony Sturbois0Miquel De Cáceres1Aline Bifolchi2Frédéric Bioret3Aurélien Boyé4Olivier Gauthier5Jacques Grall6Antoine Grémare7Céline Labrune8Alexandre Robert9Gauthier Schaal10Nicolas Desroy11VivArmor Nature Ploufragan FranceEcological and Forestry Applications Research Centre (CREAF) Campus de Bellaterra, Universitat Autònoma de Barcelona Barcelona SpainRéserve naturelle régionale des landes et marais de Glomel Glomel FranceInstitut de Géoarchitecture Université de Bretagne Occidentale Brest FranceIfremer, Centre de Bretagne DYNECO, Laboratory of Coastal Benthic Ecology Plouzané FranceLaboratoire des Sciences de l'Environnement Marin (LEMAR) UMR 6539 CNRS/UBO/IRD/IFREMER Plouzané FranceLaboratoire des Sciences de l'Environnement Marin (LEMAR) UMR 6539 CNRS/UBO/IRD/IFREMER Plouzané FranceUniversité de Bordeaux CNRS, Bordeaux INP, UMR 5805, Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC) Pessac FranceCNRS, Sorbonne Université UMR 8222 Laboratoire d'Écogéochimie des Environnements Benthiques (LECOB) Banyuls‐sur‐Mer FranceIfremer Laboratoire Environnement et Ressources Bretagne nord Dinard FranceLaboratoire des Sciences de l'Environnement Marin (LEMAR) UMR 6539 CNRS/UBO/IRD/IFREMER Plouzané FranceIfremer Laboratoire Environnement et Ressources Bretagne nord Dinard FranceAbstract Worldwide, ecosystems are suffering important taxonomic and functional modifications in response to anthropogenic disturbances, operating at multiple spatial and temporal scales. Awareness on biodiversity losses has led to the adoption of conservation policies and the development of programs devoted to the conservation and the restoration of terrestrial, freshwater, and marine ecosystems. The assessment of the ecological health of ecosystems requires measuring and characterizing restoration or degradation dynamics and their consequences on the ecological quality with respect to reference conditions defined pragmatically as conservation targets. Methodological innovations, in terms of data collection, analysis, and visualization, have an important influence on the ability of ecologists to understand biodiversity changes. The assessment of the quality of ecosystems with respect to reference conditions requires to address, notably, three main challenges: the definition of reference conditions, the assessment of the degree of achievement of conservation objectives, and the qualitative and quantitative characterization of recovering and departing patterns. We propose here the ecological quality assessment (EQA) framework as a data‐driven approach to track ecological quality focusing on the distance of the tested stations with respect to a chosen reference envelope using fuzzy logic and trajectory analysis. We take advantage of those analytical tools to propose a general and flexible multivariate framework by quantifying the achievement of reference conditions, measuring restoration and degradation dynamics when temporal series are available, and representing and synthesizing this information. To take into account the natural spatiotemporal variability of sites considered as reference, we gave two variants to our framework: a state‐based variant when no temporal replications are available and a trajectory‐based variant specially devoted to compare whole trajectories to a trajectory reference envelope defined by a set of reference trajectories. These two complementary approaches were illustrated through two terrestrial and marine ecological applications using the R package “ecotraj” in order to evidence ecological observations that meet conservation objectives from those that do not meet them. EQA constitutes a flexible framework for the assessment and reporting of ecosystem quality, including restoration and degradation dynamics adaptable to multiple questions in the different fields of ecology and conservation.https://doi.org/10.1002/ecs2.4726BACIecological dynamic regimeecological quality statusecological trajectory analysisexperimental designimpact studies
spellingShingle Anthony Sturbois
Miquel De Cáceres
Aline Bifolchi
Frédéric Bioret
Aurélien Boyé
Olivier Gauthier
Jacques Grall
Antoine Grémare
Céline Labrune
Alexandre Robert
Gauthier Schaal
Nicolas Desroy
Ecological quality assessment: A framework to report ecosystems quality and their dynamics from reference conditions
Ecosphere
BACI
ecological dynamic regime
ecological quality status
ecological trajectory analysis
experimental design
impact studies
title Ecological quality assessment: A framework to report ecosystems quality and their dynamics from reference conditions
title_full Ecological quality assessment: A framework to report ecosystems quality and their dynamics from reference conditions
title_fullStr Ecological quality assessment: A framework to report ecosystems quality and their dynamics from reference conditions
title_full_unstemmed Ecological quality assessment: A framework to report ecosystems quality and their dynamics from reference conditions
title_short Ecological quality assessment: A framework to report ecosystems quality and their dynamics from reference conditions
title_sort ecological quality assessment a framework to report ecosystems quality and their dynamics from reference conditions
topic BACI
ecological dynamic regime
ecological quality status
ecological trajectory analysis
experimental design
impact studies
url https://doi.org/10.1002/ecs2.4726
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