Population connectivity buffers genetic diversity loss in a seabird

Background Ancient DNA has revolutionized conservation genetic studies as it allows monitoring of the genetic variability of species through time and predicting the impact of ecosystems" threats on future population dynamics and viability. Meanwhile, the consequences of anthropogenic activities...

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Autores: Ramírez, Oscar, Gómez Díaz, Elena, Olalde, Iñigo, Illera, Juan Carlos, Rando, Juan Carlos, González-Solís, Jacob, Lalueza Fox, Carles, 1965-
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/61179
Acesso em linha:https://hdl.handle.net/2445/61179
Access Level:acceso abierto
Palavra-chave:Ocells marins
Genètica de poblacions
Paleobiologia
Sea birds
Population Genetics
Paleobiology
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spelling Population connectivity buffers genetic diversity loss in a seabirdRamírez, OscarGómez Díaz, ElenaOlalde, IñigoIllera, Juan CarlosRando, Juan CarlosGonzález-Solís, JacobLalueza Fox, Carles, 1965-Ocells marinsGenètica de poblacionsPaleobiologiaSea birdsPopulation GeneticsPaleobiologyBackground Ancient DNA has revolutionized conservation genetic studies as it allows monitoring of the genetic variability of species through time and predicting the impact of ecosystems" threats on future population dynamics and viability. Meanwhile, the consequences of anthropogenic activities and climate change to island faunas, particularly seabirds, remain largely unknown. In this study, we examined temporal changes in the genetic diversity of a threatened seabird, the Cory"s shearwater (Calonectris borealis). Findings We analysed the mitochondrial DNA control region of ancient bone samples from the late-Holocene retrieved from the Canary archipelago (NE Atlantic) together with modern DNA sequences representative of the entire breeding range of the species. Our results show high levels of ancient genetic diversity in the Canaries comparable to that of the extant population. The temporal haplotype network further revealed rare but recurrent long-distance dispersal between ocean basins. The Bayesian demographic analyses reveal both regional and local population size expansion events, and this is in spite of the demographic decline experienced by the species over the last millennia. Conclusions Our findings suggest that population connectivity of the species has acted as a buffer of genetic losses and illustrate the use of ancient DNA to uncover such cryptic genetic events.BioMed Central2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/61179Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: http://dx.doi.org/10.1186/1742-9994-10-28Frontiers In Zoology, 2013, vol. 10, p. 28http://dx.doi.org/10.1186/1742-9994-10-28cc-by (c) Ramírez, O. et al., 2013http://creativecommons.org/licenses/by/3.0/esinfo:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/611792026-05-27T06:46:51Z
dc.title.none.fl_str_mv Population connectivity buffers genetic diversity loss in a seabird
title Population connectivity buffers genetic diversity loss in a seabird
spellingShingle Population connectivity buffers genetic diversity loss in a seabird
Ramírez, Oscar
Ocells marins
Genètica de poblacions
Paleobiologia
Sea birds
Population Genetics
Paleobiology
title_short Population connectivity buffers genetic diversity loss in a seabird
title_full Population connectivity buffers genetic diversity loss in a seabird
title_fullStr Population connectivity buffers genetic diversity loss in a seabird
title_full_unstemmed Population connectivity buffers genetic diversity loss in a seabird
title_sort Population connectivity buffers genetic diversity loss in a seabird
dc.creator.none.fl_str_mv Ramírez, Oscar
Gómez Díaz, Elena
Olalde, Iñigo
Illera, Juan Carlos
Rando, Juan Carlos
González-Solís, Jacob
Lalueza Fox, Carles, 1965-
author Ramírez, Oscar
author_facet Ramírez, Oscar
Gómez Díaz, Elena
Olalde, Iñigo
Illera, Juan Carlos
Rando, Juan Carlos
González-Solís, Jacob
Lalueza Fox, Carles, 1965-
author_role author
author2 Gómez Díaz, Elena
Olalde, Iñigo
Illera, Juan Carlos
Rando, Juan Carlos
González-Solís, Jacob
Lalueza Fox, Carles, 1965-
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ocells marins
Genètica de poblacions
Paleobiologia
Sea birds
Population Genetics
Paleobiology
topic Ocells marins
Genètica de poblacions
Paleobiologia
Sea birds
Population Genetics
Paleobiology
description Background Ancient DNA has revolutionized conservation genetic studies as it allows monitoring of the genetic variability of species through time and predicting the impact of ecosystems" threats on future population dynamics and viability. Meanwhile, the consequences of anthropogenic activities and climate change to island faunas, particularly seabirds, remain largely unknown. In this study, we examined temporal changes in the genetic diversity of a threatened seabird, the Cory"s shearwater (Calonectris borealis). Findings We analysed the mitochondrial DNA control region of ancient bone samples from the late-Holocene retrieved from the Canary archipelago (NE Atlantic) together with modern DNA sequences representative of the entire breeding range of the species. Our results show high levels of ancient genetic diversity in the Canaries comparable to that of the extant population. The temporal haplotype network further revealed rare but recurrent long-distance dispersal between ocean basins. The Bayesian demographic analyses reveal both regional and local population size expansion events, and this is in spite of the demographic decline experienced by the species over the last millennia. Conclusions Our findings suggest that population connectivity of the species has acted as a buffer of genetic losses and illustrate the use of ancient DNA to uncover such cryptic genetic events.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/61179
url https://hdl.handle.net/2445/61179
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: http://dx.doi.org/10.1186/1742-9994-10-28
Frontiers In Zoology, 2013, vol. 10, p. 28
http://dx.doi.org/10.1186/1742-9994-10-28
dc.rights.none.fl_str_mv cc-by (c) Ramírez, O. et al., 2013
http://creativecommons.org/licenses/by/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Ramírez, O. et al., 2013
http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv BioMed Central
publisher.none.fl_str_mv BioMed Central
dc.source.none.fl_str_mv Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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