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Genetic characterization of green turtles (Chelonia mydas) from São Tomé and Príncipe: Insights on species recruitment and dispersal in the Gulf of Guinea

2019Journal article Restricted access
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dc.contributor.authorHancock, Joana M.
dc.contributor.authorVieira, Sara
dc.contributor.authorTaraveira, Lúcio
dc.contributor.authorSantos, Aladino
dc.contributor.authorSchmitt, Vanessa
dc.contributor.authorSemedo, Alcides
dc.contributor.authorPatrício, Ana Rita
dc.contributor.authorFerrand, Nuno
dc.contributor.authorGonçalves, Helena
dc.contributor.authorSequeira, Fernando
dc.date.accessioned2019-07-10T17:31:22Z
dc.date.available2019-07-10T17:31:22Z
dc.date.issued2019
dc.description.abstractGenetic studies on green sea turtles (Chelonia mydas) in the Eastern Atlantic have mostly focused on reproductive females, with limited information available regarding juveniles and foraging grounds. Improved understanding of genetic diversity and patterns of connectivity between nesting and foraging grounds is critical to identify management units and delineate suitable conservation strategies. Here we analyzed data from 11 microsatellite markers and sequences of the mitochondrial control region from both juveniles and females sampled in foraging and nesting aggregations around São Tomé and Príncipe islands, in the Gulf of Guinea, West Africa. Both nuclear and mtDNA data were congruent in showing that São Tomé and Príncipe's green turtles population exhibit high levels of genetic diversity, which are similar to those reported for other foraging aggregates in the Atlantic. Although signs of population substructure among foraging and nesting grounds of São Tomé and Príncipe islands were not apparent, our analysis based on mtDNA marker showed that both juvenile and adult turtles were genetically differentiated from other foraging and nesting Atlantic populations. The similar levels of genetic diversity found in both juveniles and females are consistent with the results from mixed stock analyses, which suggested that São Tomé and Príncipe's rookery is the primary source of juveniles to the local foraging aggregation. Taken these aspects in consideration, we argue that São Tomé and Príncipe green turtles show limited dispersal and should be considered an important management unit, and conservation actions in this archipelago must be implemented not only at the level of the rookery but should also include the foraging aggregations.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/acceptedVersionpt_PT
dc.identifier.doi10.1016/j.jembe.2019.151181pt_PT
dc.identifier.issn00220981
dc.identifier.urihttp://hdl.handle.net/10400.12/7082
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevier BVpt_PT
dc.relationPOCI-01-0145-FEDER-006821pt_PT
dc.relationEstado de conservação das tartarugas marinhas de São Tomé e Príncipe
dc.relationComparing patterns and processes of biological diversification in amphibians from temperate, subtropical and tropical ecosystems using novel phylogenomic approaches
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectChelonia mydaspt_PT
dc.subjectDispersalpt_PT
dc.subjectConnectivitypt_PT
dc.subjectGenetic diversitypt_PT
dc.subjectEastern Atlanticpt_PT
dc.subjectMixed stock analysispt_PT
dc.titleGenetic characterization of green turtles (Chelonia mydas) from São Tomé and Príncipe: Insights on species recruitment and dispersal in the Gulf of Guineapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleEstado de conservação das tartarugas marinhas de São Tomé e Príncipe
oaire.awardTitleComparing patterns and processes of biological diversification in amphibians from temperate, subtropical and tropical ecosystems using novel phylogenomic approaches
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/PD%2FBD%2F52599%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBPD%2F102966%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FBIA%2F50027%2F2013/PT
oaire.citation.conferencePlaceNetherlandspt_PT
oaire.citation.endPage9pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleJournal of Experimental Marine Biology and Ecologypt_PT
oaire.citation.volume518pt_PT
oaire.fundingStreamFARH
oaire.fundingStreamFARH
oaire.fundingStream5876
person.familyNameRita Caldas Patrício
person.familyNameFerrand
person.givenNameAna
person.givenNameNuno
person.identifierB-3437-2019
person.identifier.ciencia-id8D15-F799-1252
person.identifier.ciencia-id331F-89ED-9B44
person.identifier.orcid0000-0003-4963-2343
person.identifier.orcid0000-0002-2408-4195
person.identifier.ridE-6085-2014
person.identifier.scopus-author-id53981714800
person.identifier.scopus-author-id7004762385
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
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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