Phylogeography of the Marine Otter (<i>Lontra felina</i>): Historical and Contemporary Factors Determining Its Distribution

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dc.contributor.authorVianna, Juliana A.
dc.contributor.authorAyerdi, Paula
dc.contributor.authorMedina-Vogel, Gonzalo
dc.contributor.authorMangel, Jeffrey C.
dc.contributor.authorZeballos, Horacio
dc.contributor.authorApaza, Manuel
dc.contributor.authorFaugeron, Sylvain
dc.date.accessioned2025-01-21T00:04:30Z
dc.date.available2025-01-21T00:04:30Z
dc.date.issued2010
dc.description.abstractThe evolutionary history of a species can be revealed by phylogeographical analysis; nevertheless, not only historical but also contemporary processes can imprint on the distribution of genetic diversity. We report on the phylogeny of Lontra ssp. in South America, and the role of spatial heterogeneity in shaping the distribution and population structure of the endangered marine otter, Lontra felina. Analyzing a total of 2261 bp of mitochondrial DNA (mtDNA) revealed the recent divergence of L. felina from L. provocax. A strong population structure (Phi(st) = 0.83, P < 0.0001) and a significant pattern of isolation by distance were described for L. felina (n = 168) across a wide geographical distribution (13 degrees 53'S to 43 degrees 36'S). Lontra felina mtDNA phylogeny is composed of 2 main clades: a clade from Peru and another composed of Chilean haplotypes. Northern populations show different divergent lineages and higher genetic diversity when compared with more recently colonized southern populations. Furthermore, long sandy beaches seem to act as barriers to dispersal, creating 2 evolutionary significant units in agreement with subspecies previous description, and at least 5 different management units (MUs). At a fine spatial scale, the size of rocky seashore patches, the distance between patches and anthropogenic factors also play important roles in species gene flow.
dc.fuente.origenWOS
dc.identifier.doi10.1093/jhered/esq088
dc.identifier.eissn1465-7333
dc.identifier.issn0022-1503
dc.identifier.urihttps://doi.org/10.1093/jhered/esq088
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95509
dc.identifier.wosidWOS:000283691400002
dc.issue.numero6
dc.language.isoen
dc.pagina.final689
dc.pagina.inicio676
dc.revistaJournal of heredity
dc.rightsacceso restringido
dc.subjectclimatic change
dc.subjectconservation
dc.subjectfragmented habitat
dc.subjectphylogeny
dc.subjectphylogeography
dc.subjectotter
dc.titlePhylogeography of the Marine Otter (<i>Lontra felina</i>): Historical and Contemporary Factors Determining Its Distribution
dc.typeartículo
dc.volumen101
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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