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Dispersal of green turtles from Africas' largest rookery assessed through genetic markers

2017Journal article Open access
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dc.contributor.authorPatrício, Ana Rita
dc.contributor.authorFormia, Angela
dc.contributor.authorBarbosa, Castro
dc.contributor.authorBroderick, Annette C.
dc.contributor.authorBruford, Michael
dc.contributor.authorCarreras, Carlos
dc.contributor.authorCatry, Paulo
dc.contributor.authorCiofi, Claudio
dc.contributor.authorRegalla, Aissa Said
dc.contributor.authorGodley, Brendan John
dc.date.accessioned2017-05-31T17:53:28Z
dc.date.available2021-04-07T00:30:09Z
dc.date.issued2017
dc.descriptionMaterial suplementar disponível em: http://www.int-res.com/abstracts/meps/v569/p215-225/pt_PT
dc.description.abstractMarine turtles are highly migratory species that establish multiple connections among distant areas, through oceanic migration corridors. To improve the knowledge on the connectivity of Atlantic green turtles Chelonia mydas, we analysed the genetic composition and contribution to juvenile aggregations of one of the world's largest rookeries at Poilao Island, Guinea-Bissau. We amplified 856 bp mitochondrial DNA (mtDNA) control region sequences of this population (n = 171) containing the similar to 490 bp haplotypes used in previous studies. Haplotype CM-A8 was dominant (99.4%), but it divided in 2 variants when the whole 856 bp was considered: CM-A8.1 (98.8%) and CM-A8.3 (0.6%). We further identified the haplotype CM-A42.1 (0.6%), found previously only in juvenile foraging grounds at Argentina, Brazil and Equatorial Guinea. The Poilao breeding population was genetically different from all others in the Atlantic (FST range: 0.016-0.961, p < 0.001). An extensive 'many-to-many' mixed-stock analysis (MSA) including 14 nesting populations (1815 samples) and 17 foraging grounds (1686 samples) supported a strong contribution of Poilao to West Africa (51%) but also to the Southwest Atlantic (36%). These findings, in particular the strong connectivity within West Africa, where illegal harvesting is still common, should motivate conservation partnerships, so that population protection can be effectively extended through all life stages. Our study expands the knowledge on migration patterns and connectivity of green turtles in the Atlantic, evidences the importance of larger sample sizes and emphasizes the need to include more finely resolved markers in MSAs and more genetic sampling from West African foraging grounds to further resolve the connectivity puzzle for this species.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tencologia (FCT); MAVA Foundation; Rufford Foundation; Darwin Initiative; Ministerio de Economia y Competitividad, Spainpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMarine Ecology Progress Series, 569, 215-225. Doi: 10.3354/meps12078pt_PT
dc.identifier.doi10.3354/meps12078pt_PT
dc.identifier.issn0171-8630
dc.identifier.urihttp://hdl.handle.net/10400.12/5522
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherInter Researchpt_PT
dc.relationRSG12317-1pt_PT
dc.relationRSG16357-2pt_PT
dc.relationCTM2013-48163pt_PT
dc.relation.publisherversionhttp://www.int-res.com/abstracts/meps/v569/p215-225/pt_PT
dc.subjectConnectivitypt_PT
dc.subjectDispersalpt_PT
dc.subjectGreen turtlept_PT
dc.subjectMigrationpt_PT
dc.subjectMitochondrial DNApt_PT
dc.subjectmtDNApt_PT
dc.subjectMixed-stock analysispt_PT
dc.subjectMSApt_PT
dc.subjectPopulation geneticspt_PT
dc.subjectWest Africapt_PT
dc.titleDispersal of green turtles from Africas' largest rookery assessed through genetic markerspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMAR%2F04292%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F00502%2F2013%2FCP1186%2FCT0003/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F85017%2F2012/PT
oaire.citation.conferencePlaceGermanypt_PT
oaire.citation.endPage225pt_PT
oaire.citation.startPage215pt_PT
oaire.citation.titleMarine Ecology Progress Seriespt_PT
oaire.citation.volume569pt_PT
oaire.fundingStream5876
oaire.fundingStreamInvestigador FCT
oaire.fundingStreamSFRH
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.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublicationb45075bd-b8ca-49a6-bfec-2030828e7160
relation.isProjectOfPublicatione5516a99-acb0-4335-aa35-cf4c810de077
relation.isProjectOfPublication1ab4f7d1-4487-4ebc-a24e-b9003265e4df
relation.isProjectOfPublication.latestForDiscovery1ab4f7d1-4487-4ebc-a24e-b9003265e4df

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