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Range-edge populations of seaweeds show niche unfilling and poor adaptation to increased temperatures

2023Journal article Restricted access
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dc.contributor.authorHernández, Sandra
dc.contributor.authorGarcía, Ana G.
dc.contributor.authorArenas, Francisco
dc.contributor.authorEscribano, M. Pilar
dc.contributor.authorJueterbock, Alexander
dc.contributor.authorDe Clerck, Olivier
dc.contributor.authorMaggs, Christine
dc.contributor.authorFranco, Joao N.
dc.contributor.authorMartínez, Brezo D.C.
dc.date.accessioned2023-09-08T08:59:14Z
dc.date.available2023-09-08T08:59:14Z
dc.date.issued2023
dc.descriptionThis research was supported by project CGL2014-60193-P funded by the Spanish Ministry of Economy and Competitiveness. The manipulative experiments were funded by the Portuguese project SEEINGSHORE (NORTE-01-0145-FEDER-031893), co-financed by NORTE 2020, Portugal 2020, and the European Union through the ERDF, and by FCT through national funds. ODC is supported by EMBRC Belgium—FWO project I001621N and UGent BOF-GOA-2017000603.pt_PT
dc.description.abstractAim: Global warming is affecting the distribution of species worldwide, but the level of adaptation of edge populations to warmer temperatures remains an open question. Here, we assess the thermal tolerance of populations of two habitat-forming seaweeds along their latitudinal range, using thermal niche unfilling to assess their resilience to global warming. Location: European Atlantic coastline. Taxon: Ascophyllum nodosum (Linnaeus) Le Jolis (Phaeophyceae) and Chondrus crispus Stackhouse (Rhodophyta). Methods: We studied the ecotypic variation in upper survival temperatures (USTs) by measuring survival and growth of adults representing populations under a gradient of seawater temperature (12–30°C). Comparing the USTs with maximum seawater temperatures obtained from satellites, we investigated safety margins and niche unfilling states, both in recent history and under future climate scenarios. Results: USTs (≈24°C) did not differ significantly between populations, except for higher values (27.9°C) for the northernmost populations (cold edge) of A. nodosum. Populations of both species had thermal safety margins over the last few decades (from 1982 to 2021). However, projections based on USTs showed that in several years these margins have been eliminated and will completely disappear in the Bay of Biscay under RCP4.5 and RCP6.0 2090–2100 IPCC scenarios for C. crispus and under RCP8.5 for both species, threatening the populations there. Main Conclusions: Southern marginal populations were not better adapted to global warming than populations elsewhere. Both seaweed species tolerated higher temperatures than the ambient maxima, suggesting a thermal niche unfilling state with thermal safety margins in their recent history. However, those are being depleted by ongoing climate change and this trend is predicted to increase. Marine heat waves are important threats to these habitat-forming species, transiently reducing or even eliminating safety margins in the hottest parts of the European Atlantic coastline, contributing to explaining the distributional gap there.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationHernández, S., García, A. G., Arenas, F., Escribano, M. P., Jueterbock, A., De Clerck, O., Maggs, C. A., Franco, J. N., & Martínez, B. D. C. (2023). Range-edge populations of seaweeds show niche unfilling and poor adaptation to increased temperatures. Journal of Biogeography, 50, 780–791. https://doi.org/10.1111/jbi.14572pt_PT
dc.identifier.doi10.1111/jbi.14572pt_PT
dc.identifier.issn0305-0270
dc.identifier.issn1365-2699
dc.identifier.urihttp://hdl.handle.net/10400.8/8769
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relation.publisherversionhttps://onlinelibrary.wiley.com/doi/full/10.1111/jbi.14572pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectGlobal warmingpt_PT
dc.subjectMacroalgaept_PT
dc.subjectNiche unfillingpt_PT
dc.subjectPhysiological thresholdspt_PT
dc.subjectSafety marginspt_PT
dc.subjectThermal ecotypespt_PT
dc.titleRange-edge populations of seaweeds show niche unfilling and poor adaptation to increased temperaturespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage791pt_PT
oaire.citation.startPage780pt_PT
oaire.citation.titleJournal of Biogeographypt_PT
oaire.citation.volume50pt_PT
person.familyNameHernández
person.familyNameGarcía
person.familyNameArenas Parra
person.familyNameJueterbock
person.familyNameDe Clerck
person.familyNameMaggs
person.familyNameFranco
person.givenNameSandra
person.givenNameAna G.
person.givenNameFrancisco
person.givenNameAlexander
person.givenNameOlivier
person.givenNameChristine
person.givenNameJoao N
person.identifierhttps://scholar.google.com/citations?user=x9pmaxIAAAAJ&hl=pt
person.identifier153718
person.identifier.ciencia-id3212-2192-36B2
person.identifier.ciencia-id6514-AE0F-C766
person.identifier.ciencia-id7E1B-4C01-D6BC
person.identifier.orcid0000-0001-8005-214X
person.identifier.orcid0000-0002-7256-2075
person.identifier.orcid0000-0001-6925-3805
person.identifier.orcid0000-0002-0659-3172
person.identifier.orcid0000-0002-3699-8402
person.identifier.orcid0000-0003-0495-7064
person.identifier.orcid0000-0002-8249-5224
person.identifier.scopus-author-id7003952566
person.identifier.scopus-author-id7005507358
person.identifier.scopus-author-id36903257100
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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