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Habitat continuity and stepping-stone oceanographic distances explain population genetic connectivity of the brown alga Cystoseira amentacea

2017-02Journal article Open access
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dc.contributor.authorBuonomo, Roberto
dc.contributor.authorAssis, J.
dc.contributor.authorFernandes, Francisco
dc.contributor.authorEngelen, Aschwin H.
dc.contributor.authorAiroldi, Laura
dc.contributor.authorSerrao, Ester A.
dc.date.accessioned2018-12-07T14:52:56Z
dc.date.available2018-12-07T14:52:56Z
dc.date.issued2017-02
dc.description.abstractEffective predictive and management approaches for species occurring in a metapopulation structure require good understanding of interpopulation connectivity. In this study, we ask whether population genetic structure of marine species with fragmented distributions can be predicted by stepping-stone oceanographic transport and habitat continuity, using as model an ecosystem-structuring brown alga, Cystoseira amentacea var. stricta. To answer this question, we analysed the genetic structure and estimated the connectivity of populations along discontinuous rocky habitat patches in southern Italy, using microsatellite markers at multiple scales. In addition, we modelled the effect of rocky habitat continuity and ocean circulation on gene flow by simulating Lagrangian particle dispersal based on ocean surface currents allowing multigenerational stepping-stone dynamics. Populations were highly differentiated, at scales from few metres up to thousands of kilometres. The best possible model fit to explain the genetic results combined current direction, rocky habitat extension and distance along the coast among rocky sites. We conclude that a combination of variable suitable habitat and oceanographic transport is a useful predictor of genetic structure. This relationship provides insight into the mechanisms of dispersal and the role of life-history traits. Our results highlight the importance of spatially explicit modelling of stepping-stone dynamics and oceanographic directional transport coupled with habitat suitability, to better describe and predict marine population structure and differentiation. This study also suggests the appropriate spatial scales for the conservation, restoration and management of species that are increasingly affected by habitat modifications.
dc.description.sponsorshipMARES Grant (Doctoral Programme in Marine Ecosystem Health and Conservation) [EU-512002-1-2010-1-BE-EMJD]; Ghent University [FPA 2011-0016]; FCT (Portugal); project TETRIS; [SFRH/BPD/63703/2009]; [SFRH/BPD/107878/2015]; [SFRH/BPD/111003/2015]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1111/mec.13960
dc.identifier.issn0962-1083
dc.identifier.issn1365-294X
dc.identifier.urihttp://hdl.handle.net/10400.1/11274
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley-Blackwell
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectSeagrass posidonia-oceanica
dc.subjectMarine protected areas
dc.subjectMediterranean sea
dc.subjectSeascape genetics
dc.subjectVar. stricta
dc.subjectConceptual issues
dc.subjectAdriatic sea
dc.subjectFucoid algae
dc.subjectPatterns
dc.subjectDna
dc.titleHabitat continuity and stepping-stone oceanographic distances explain population genetic connectivity of the brown alga Cystoseira amentacea
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage780
oaire.citation.issue3
oaire.citation.startPage766
oaire.citation.titleMolecular Ecology
oaire.citation.volume26
person.familyNameBuonomo
person.familyNameAssis
person.familyNameEngelen
person.familyNameSerrao
person.givenNameRoberto
person.givenNameJorge
person.givenNameAschwin
person.givenNameEster A.
person.identifierC-6686-2012
person.identifier.ciencia-id5C1D-05B6-29F7
person.identifier.ciencia-id911A-9A0C-744D
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0002-4840-6689
person.identifier.orcid0000-0002-6624-4820
person.identifier.orcid0000-0002-9579-9606
person.identifier.orcid0000-0003-1316-658X
person.identifier.ridG-9688-2012
person.identifier.ridM-3432-2013
person.identifier.scopus-author-id53463298700
person.identifier.scopus-author-id6701622770
person.identifier.scopus-author-id7004093604
rcaap.rightsopenAccess
rcaap.typearticle
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