Post-disturbance genetic changes: the impact of the 2010 mega-earthquake and tsunami on chilean sandy beach fauna

Cambios genéticos posteriores a la perturbación: el impacto del mega terremoto y tsunami de 2010 en Chile Playa de arena Fauna;
Cambios genéticos post-disturbio: impacto del megaterremoto y tsunami de 2010 en la fauna de playas arenosas chilenas.

dc.creatorBrante, Antonio
dc.creatorGuzmán-Rendón, Garen
dc.creatorBarría, Erwin M.
dc.creatorGuillemin, Marie-Laure
dc.creatorVera-Escalona, Iván
dc.creatorHernández, Cristián E.
dc.date2020-05-16T12:11:45Z
dc.date2020-05-16T12:11:45Z
dc.date2019-10-02
dc.date.accessioned2022-10-18T12:06:38Z
dc.date.available2022-10-18T12:06:38Z
dc.identifierScientific reports 2019 Oct 02; Vol. 9 (1), pp. 14239
dc.identifier2045-2322
dc.identifierhttp://repositoriodigital.ucsc.cl/handle/25022009/1509
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4441148
dc.descriptionEarthquake/tsunamis can have profound impacts on species and their genetic patterns. It is expected that the magnitude of this impact might depend on the species and the time since the disturbance occurs, nevertheless these assumptions remain mostly unexplored. Here we studied the genetic responses of the crustacean species Emerita analoga, Excirolana hirsuticauda, and Orchestoidea tuberculata to the 27F mega-earthquake/tsunami that occurred in Chile in February 2010. mtDNA sequence analyses revealed a lower haplotype diversity for E. analoga and E. hirsuticauda in impacted areas one month after the 27F, and the opposite for O. tuberculata. Three years after the 27F we observed a recovery in the genetic diversity of E. analoga and E. hirsuticauda and decrease in the genetic diversity in O. tuberculata in 2/3 of sampled areas. Emerita analoga displayed decrease of genetic diferentiation and increase in gene fow explained by long-range population expansion. The other two species revealed slight increase in the number of genetic groups, little change in gene fow and no signal of population expansion associated to adult survival, rapid colonization, and capacity to burrow in the sand. Our results reveal that species response to a same disturbance event could be extremely diverse and depending on life-history traits and the magnitude of the efect.
dc.languageen
dc.publisherScientific reports
dc.sourcehttps://doi.org/10.1038/s41598-019-50525-1
dc.subjectMega-Earthquake
dc.subjectTsunami
dc.subjectGenetic changes
dc.titlePost-disturbance genetic changes: the impact of the 2010 mega-earthquake and tsunami on chilean sandy beach fauna
dc.titleCambios genéticos posteriores a la perturbación: el impacto del mega terremoto y tsunami de 2010 en Chile Playa de arena Fauna
dc.titleCambios genéticos post-disturbio: impacto del megaterremoto y tsunami de 2010 en la fauna de playas arenosas chilenas.
dc.typeArtículos de revistas


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