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Taking the heat: distinct vulnerability to thermal stress of central and threatened peripheral lineages of a marine macroalga

2016-10Journal article Restricted access
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dc.contributor.authorSaada, Gabriel
dc.contributor.authorNicastro, Katy R
dc.contributor.authorJacinto, Rita
dc.contributor.authorMcQuaid, Christopher D.
dc.contributor.authorSerrão, Ester
dc.contributor.authorPearson, G. A.
dc.contributor.authorZardi, Gerardo I.
dc.date.accessioned2017-04-07T15:55:59Z
dc.date.available2017-04-07T15:55:59Z
dc.date.issued2016-10
dc.description.abstractAim Although many studies have reported the effects of climate change on species' distributions, most of them consider each species as a physiologically homogenous unit. However, different lineages or populations inhabiting distinct bioregions within a species' distributional range can retain unique genetic diversity that could result in distinct adaptive capacities. A recent, large, climate-correlated distributional range contraction occurred at the southern edge of the intertidal macroalga Fucus vesiculosus, causing loss of genetic diversity unique to the southern clade. We tested for differential selective constraints and signs of local adaptation to thermal stress in the two genetic lineages.Location Iberian Atlantic shores.Methods We performed a series of common garden experiments and a field reciprocal transplant.Results In the laboratory, southern F. vesiculosus showed higher resilience to heat stress than northern individuals. On the southwest coast of Portugal, local individuals grew more than those transplanted from the northern range; in the north of Portugal, growth rates did not differ significantly between lineages.Conclusions We present evidence for unique adaptive traits at the retreating edge of the species' distribution that could be lost if warming trends persist. The loss of the distinct southern genetic heritage could end potential ongoing diversification or speciation processes and impoverishes the adaptive potential of the species as a whole.
dc.identifier.doi10.1111/ddi.12474
dc.identifier.issn1366-9516
dc.identifier.otherAUT: ESE00527;
dc.identifier.urihttp://hdl.handle.net/10400.1/9280
dc.language.isoeng
dc.peerreviewedyes
dc.relationExtant or extinct tipping points - climate changes drive genetic diversity and dynamics of range edge populations as evolutionary hotspots
dc.relationWho is taking the heat? Accounting for multiple levels of biodiversity under contemporary climatic change
dc.relation.isbasedonWOS:000382493100007
dc.titleTaking the heat: distinct vulnerability to thermal stress of central and threatened peripheral lineages of a marine macroalga
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleExtant or extinct tipping points - climate changes drive genetic diversity and dynamics of range edge populations as evolutionary hotspots
oaire.awardTitleWho is taking the heat? Accounting for multiple levels of biodiversity under contemporary climatic change
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FMAR%2F110251%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04326%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/EXCL%2FAAG-GLO%2F0661%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F01413%2F2014%2FCP1217%2FCT0004/PT
oaire.citation.endPage1068
oaire.citation.issue10
oaire.citation.startPage1060
oaire.citation.titleDiversity and Distributions
oaire.citation.volume22
oaire.fundingStream3599-PPCDT
oaire.fundingStream5876
oaire.fundingStream3599-PPCDT
oaire.fundingStreamInvestigador FCT
person.familyNameNicastro
person.familyNameSerrao
person.familyNamePearson
person.givenNameKaty
person.givenNameEster A.
person.givenNameGareth Anthony
person.identifierC-6686-2012
person.identifier113536
person.identifier.ciencia-id3E12-714B-AFE5
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.ciencia-id3315-9919-1A52
person.identifier.orcid0000-0002-7071-141X
person.identifier.orcid0000-0003-1316-658X
person.identifier.orcid0000-0002-0768-464X
person.identifier.ridD-2259-2012
person.identifier.ridJ-3911-2013
person.identifier.scopus-author-id12646675100
person.identifier.scopus-author-id7004093604
person.identifier.scopus-author-id55916875600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
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