Defaunation leads to microevolutionary changes in a tropical palm

dc.contributor.authorCarvalho, Carolina S. [UNESP]
dc.contributor.authorGaletti, Mauro [UNESP]
dc.contributor.authorColevatti, Rosane G.
dc.contributor.authorJordano, Pedro
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Goiás (UFG)
dc.description.abstractMany large species have declined worldwide due to habitat fragmentation and poaching. The defaunation of large frugivores and the consequent reductions of seed dispersal services may have immediate effects on plant demography. Yet, the lasting effects of frugivore defaunation on microevolutionary processes of the plants they disperse remain understudied. We tested if the loss of large seed dispersers can lead to microevolutionary changes of a tropical palm. We show that frugivore defaunation is the main driver of changes in allelic frequency among populations. Turnover of alleles accounted for 100% of dissimilarity in allelic frequencies of individuals between defaunated and non-defaunated forests; and individuals from defaunated sites are 1.5 times more similar genetically than those found in pristine sites. Given that sizeable fractions of the palm fruit crops remain undispersed in defaunated sites due to lack of large-bodied frugivores, this distinct pattern of gene pool composition of early recruits may reveal strong dispersal limitation for specific genotypes, or collapses of gene flow between fragmented areas, or both. Because most of tropical tree species rely on seed dispersal by vertebrates, our results show that defaunation has a lasting effect on microevolutionary processes, with potential consequences for persistence under scenarios of environmental change.en
dc.description.affiliationUniv Estadual Paulista UNESP, Dept Ecol, BR-13506900 Sao Paulo, Brazil
dc.description.affiliationUniv Fed Goias, ICB, Lab Genet & Biodiversidade, Goiania, Go, Brazil
dc.description.affiliationCSIC, EBD, Integrat Ecol Grp, Seville, Spain
dc.description.affiliationUnespUniv Estadual Paulista UNESP, Dept Ecol, BR-13506900 Sao Paulo, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipJunta de Andalucia Excellence Grant
dc.description.sponsorshipMinisterio de Economia y Competitividad, Spain
dc.description.sponsorshipIdCNPq: 477843/2011-5
dc.description.sponsorshipIdCNPq: 401258/2012-2
dc.description.sponsorshipIdFAPESP: 2014/01986-0
dc.description.sponsorshipIdFAPESP: 2014/01029-5
dc.description.sponsorshipIdJunta de Andalucia Excellence Grant: RNM-5731
dc.description.sponsorshipIdMinisterio de Economia y Competitividad, Spain: SEV-2012-0262
dc.identifier.citationScientific Reports. London: Nature Publishing Group, v. 6, 9 p., 2016.
dc.publisherNature Publishing Group
dc.relation.ispartofScientific Reports
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleDefaunation leads to microevolutionary changes in a tropical palmen
dcterms.rightsHolderNature Publishing Group[2][4]


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