Thermal refugia reinforce macroalgal resilience against climate change in the southeastern Bay of Biscay

Rising global temperatures present unprecedented challenges to marine ecosystems, demanding a profound understanding of their ecological dynamics for effective conservation strategies. Over a comprehensive macroalgal assessment spanning three decades, we investigated the spatiotemporal evolution of...

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Autores: Arriaga, O., Wawrzynkowski, P., Muguerza, N., Díez, Isabel, González, J., Gorostiaga, José M., Quintano, E., Becerro, Mikel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/387291
Acceso en línea:http://hdl.handle.net/10261/387291
https://api.elsevier.com/content/abstract/scopus_id/85201738006
Access Level:acceso abierto
Palabra clave:Bay of Biscay
Community Temperature Index (CTI)
Canopy
Climate change
Macroalgae
Phase shifts
Refugia
Subtidal
Temperature
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spelling Thermal refugia reinforce macroalgal resilience against climate change in the southeastern Bay of BiscayArriaga, O.Wawrzynkowski, P.Muguerza, N.Díez, IsabelGonzález, J.Gorostiaga, José M.Quintano, E.Becerro, MikelBay of BiscayCommunity Temperature Index (CTI)CanopyClimate changeMacroalgaePhase shiftsRefugiaSubtidalTemperatureRising global temperatures present unprecedented challenges to marine ecosystems, demanding a profound understanding of their ecological dynamics for effective conservation strategies. Over a comprehensive macroalgal assessment spanning three decades, we investigated the spatiotemporal evolution of shallow-water benthic communities in the southern Bay of Biscay, uncovering climate-resilient areas amidst the ongoing phase shift in the region. Our investigation identified seven locations serving as potential climate refugia, where cold-affinity, canopy-forming macroalgal species persisted and community structure was similar to that observed in 1991. We unveiled a clear association between the emergence of these refugia, sea surface temperature (SST), and the Community Temperature Index, positioning SST as a significant driver of the observed phase shift in the region. Warming processes, defined as tropicalization (increase of warm-affinity species) and deborealization (decrease of cold-affinity species), were prominent outside refugia. In contrast, cooling processes, defined as borealization (increase of cold-affinity species) and detropicalization (decrease of warm-affinity species), prevailed inside refugia. Refugia exhibited approximately 35% lower warming processes compared to non-refuge areas. This resulted in a dominance of warm-affinity species outside refugia, contrasting with the stability observed within refugia. The persistence of canopy-forming species in refuge areas significantly contributed to maintaining ecosystem diversity and stability. These findings underscored the pivotal role of climate refugia in mitigating climate-driven impacts. Prioritizing the protection and restoration of these refugia can foster resilience and ensure the preservation of biodiversity for future generations. Our study illustrates the importance of refining our understanding of how marine ecosystems respond to climate change, offering actionable insights essential for informed conservation strategies and sustainable environmental management.This work was supported by the DIVERSAT project (Spanish Ministry of Science RTI2018-098970-B-I00). The main author is financially supported by a Basque Government predoctoral grant (Reference N°: PRE_2022_2_0127). The authors thank the Fundación Oceanográfica de Guipúzcoa e Aquarium de Donostia-San Sebastián for providing daily sea-surface temperature readings.Peer reviewedWiley-VCHMinisterio de Ciencia e Innovación (España)Eusko JaurlaritzaAgencia Estatal de Investigación (España)Arriaga, O. [0000-0001-8393-6688]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/387291https://api.elsevier.com/content/abstract/scopus_id/85201738006reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-098970-B-I00The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1111/gcb.17481https://doi.org/10.1111/gcb.17481Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3872912026-05-22T06:33:51Z
dc.title.none.fl_str_mv Thermal refugia reinforce macroalgal resilience against climate change in the southeastern Bay of Biscay
title Thermal refugia reinforce macroalgal resilience against climate change in the southeastern Bay of Biscay
spellingShingle Thermal refugia reinforce macroalgal resilience against climate change in the southeastern Bay of Biscay
Arriaga, O.
Bay of Biscay
Community Temperature Index (CTI)
Canopy
Climate change
Macroalgae
Phase shifts
Refugia
Subtidal
Temperature
title_short Thermal refugia reinforce macroalgal resilience against climate change in the southeastern Bay of Biscay
title_full Thermal refugia reinforce macroalgal resilience against climate change in the southeastern Bay of Biscay
title_fullStr Thermal refugia reinforce macroalgal resilience against climate change in the southeastern Bay of Biscay
title_full_unstemmed Thermal refugia reinforce macroalgal resilience against climate change in the southeastern Bay of Biscay
title_sort Thermal refugia reinforce macroalgal resilience against climate change in the southeastern Bay of Biscay
dc.creator.none.fl_str_mv Arriaga, O.
Wawrzynkowski, P.
Muguerza, N.
Díez, Isabel
González, J.
Gorostiaga, José M.
Quintano, E.
Becerro, Mikel
author Arriaga, O.
author_facet Arriaga, O.
Wawrzynkowski, P.
Muguerza, N.
Díez, Isabel
González, J.
Gorostiaga, José M.
Quintano, E.
Becerro, Mikel
author_role author
author2 Wawrzynkowski, P.
Muguerza, N.
Díez, Isabel
González, J.
Gorostiaga, José M.
Quintano, E.
Becerro, Mikel
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Eusko Jaurlaritza
Agencia Estatal de Investigación (España)
Arriaga, O. [0000-0001-8393-6688]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Bay of Biscay
Community Temperature Index (CTI)
Canopy
Climate change
Macroalgae
Phase shifts
Refugia
Subtidal
Temperature
topic Bay of Biscay
Community Temperature Index (CTI)
Canopy
Climate change
Macroalgae
Phase shifts
Refugia
Subtidal
Temperature
description Rising global temperatures present unprecedented challenges to marine ecosystems, demanding a profound understanding of their ecological dynamics for effective conservation strategies. Over a comprehensive macroalgal assessment spanning three decades, we investigated the spatiotemporal evolution of shallow-water benthic communities in the southern Bay of Biscay, uncovering climate-resilient areas amidst the ongoing phase shift in the region. Our investigation identified seven locations serving as potential climate refugia, where cold-affinity, canopy-forming macroalgal species persisted and community structure was similar to that observed in 1991. We unveiled a clear association between the emergence of these refugia, sea surface temperature (SST), and the Community Temperature Index, positioning SST as a significant driver of the observed phase shift in the region. Warming processes, defined as tropicalization (increase of warm-affinity species) and deborealization (decrease of cold-affinity species), were prominent outside refugia. In contrast, cooling processes, defined as borealization (increase of cold-affinity species) and detropicalization (decrease of warm-affinity species), prevailed inside refugia. Refugia exhibited approximately 35% lower warming processes compared to non-refuge areas. This resulted in a dominance of warm-affinity species outside refugia, contrasting with the stability observed within refugia. The persistence of canopy-forming species in refuge areas significantly contributed to maintaining ecosystem diversity and stability. These findings underscored the pivotal role of climate refugia in mitigating climate-driven impacts. Prioritizing the protection and restoration of these refugia can foster resilience and ensure the preservation of biodiversity for future generations. Our study illustrates the importance of refining our understanding of how marine ecosystems respond to climate change, offering actionable insights essential for informed conservation strategies and sustainable environmental management.
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/387291
https://api.elsevier.com/content/abstract/scopus_id/85201738006
url http://hdl.handle.net/10261/387291
https://api.elsevier.com/content/abstract/scopus_id/85201738006
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-098970-B-I00
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1111/gcb.17481
https://doi.org/10.1111/gcb.17481
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley-VCH
publisher.none.fl_str_mv Wiley-VCH
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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