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Distribution of genetic diversity reveals colonization patterns and philopatry of the loggerhead sea turtles across geographic scales

2020Journal article Open access
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dc.contributor.authorSoares, Miguel Baltazar
dc.contributor.authorKlein, Juliana D.
dc.contributor.authorCorreia, Sandra M.
dc.contributor.authorReischig, Thomas
dc.contributor.authorTaxonera, Albert
dc.contributor.authorRoque, Silvana Monteiro
dc.contributor.authorDos Passos, Leno
dc.contributor.authorDurão, Jandira
dc.contributor.authorLomba, João Pina
dc.contributor.authorDinis, Herculano
dc.contributor.authorCameron, Sahmorie J.K.
dc.contributor.authorStiebens, Victor A.
dc.contributor.authorEizaguirre, Christophe
dc.date.accessioned2020-11-13T17:23:29Z
dc.date.available2020-11-13T17:23:29Z
dc.date.issued2020
dc.description.abstractUnderstanding the processes that underlie the current distribution of genetic diversity in endangered species is a goal of modern conservation biology. Specifically, the role of colonization and dispersal events throughout a species' evolutionary history often remains elusive. The loggerhead sea turtle (Caretta caretta) faces multiple conservation challenges due to its migratory nature and philopatric behaviour. Here, using 4207 mtDNA sequences, we analysed the colonisation patterns and distribution of genetic diversity within a major ocean basin (the Atlantic), a regional rookery (Cabo Verde Archipelago) and a local island (Island of Boa Vista, Cabo Verde). Data analysis using hypothesis-driven population genetic models suggests the colonization of the Atlantic has occurred in two distinct waves, each corresponding to a major mtDNA lineage. We propose the oldest lineage entered the basin via the isthmus of Panama and sequentially established aggregations in Brazil, Cabo Verde and in the area of USA and Mexico. The second lineage entered the Atlantic via the Cape of Good Hope, establishing colonies in the Mediterranean Sea, and from then on, re-colonized the already existing rookeries of the Atlantic. At the Cabo Verde level, we reveal an asymmetric gene flow maintaining links across island-specific nesting groups, despite significant genetic structure. This structure stems from female philopatric behaviours, which could further be detected by weak but significant differentiation amongst beaches separated by only a few kilometres on the island of Boa Vista. Exploring biogeographic processes at diverse geographic scales improves our understanding of the complex evolutionary history of highly migratory philopatric species. Unveiling the past facilitates the design of conservation programmes targeting the right management scale to maintain a species' evolutionary potential.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationScientific Reports, 10(1), 1-14 Doi: 10.1038/s41598-020-74141-6pt_PT
dc.identifier.doi10.1038/s41598-020-74141-6pt_PT
dc.identifier.issn20452322
dc.identifier.urihttp://hdl.handle.net/10400.12/7828
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherNature Publishing Grouppt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-sa/4.0/pt_PT
dc.titleDistribution of genetic diversity reveals colonization patterns and philopatry of the loggerhead sea turtles across geographic scalespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceUnited Kingdonpt_PT
oaire.citation.endPage14pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleScientific Reportspt_PT
oaire.citation.volume10pt_PT
person.familyNameBaltazar-Soares
person.familyNameAndrade Dinis
person.givenNameMiguel
person.givenNameHerculano
person.identifierU4X7rRYAAAAJ&hl
person.identifier.ciencia-id3D1D-4AB0-7388
person.identifier.orcid0000-0002-2674-5591
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication327ea96b-a59e-4c95-b0c5-54f8ee6a0084
relation.isAuthorOfPublication053867a7-304c-4e61-aee0-cb0b12403792
relation.isAuthorOfPublication.latestForDiscovery053867a7-304c-4e61-aee0-cb0b12403792

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