Rise of oceanographic barriers in continuous populations of a cetacean: the genetic structure of harbour porpoises in Old World waters
Background: Understanding the role of seascape in shaping genetic and demographic population structure is highly challenging for marine pelagic species such as cetaceans for which there is generally little evidence of what could effectively restrict their dispersal. In the present work, we applied a...
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ftinraparis:oai:prodinra.inra.fr:19647 2023-05-15T16:33:27+02:00 Rise of oceanographic barriers in continuous populations of a cetacean: the genetic structure of harbour porpoises in Old World waters Fontaine, Michaël Stuart, Stuart Piry, Sylvain Ray, Nicolas Tolley, Krystal A. Duke, Sarah Birkun Jr., Alexei Ferreira, Marisa Jauniaux, Thierry Llavona, Angela Ozturk, Bayram Ozturk, Ayaka A. Ridoux, Vincent Rogan, Emer Sequeira, Marina Siebert, Ursula Vinkingsson, Gisli A. Bouquegneau, Jean-Marie Michaux, Johan 2007 application/pdf http://prodinra.inra.fr/ft/BEA06A62-3531-47AB-B8FD-02527F96C03B http://prodinra.inra.fr/record/19647 https://doi.org/10.1186/1741-7007-5-30 eng eng http://creativecommons.org/licenses/by-nd-nc/1.0/ CC-BY-ND-NC BMC Biology (5), 30. (2007) GENETIQUE DES POPULATIONS;DEMOGRAPHIE;PHOCOENA PHOCOENA;ESPECE PELAGIQUE;MARSOUIN COMMUN océan atlantique espagne pays méditerranéen europe variabilité spatiale cetace ARTICLE 2007 ftinraparis https://doi.org/10.1186/1741-7007-5-30 2015-10-30T07:46:52Z Background: Understanding the role of seascape in shaping genetic and demographic population structure is highly challenging for marine pelagic species such as cetaceans for which there is generally little evidence of what could effectively restrict their dispersal. In the present work, we applied a combination of recent individual-based landscape genetic approaches to investigate the population genetic structure of a highly mobile extensive range cetacean, the harbour porpoise in the eastern North Atlantic, with regards to oceanographic characteristics that could constrain its dispersal.Results: Analyses of 10 microsatellite loci for 752 individuals revealed that most of the sampled range in the eastern North Atlantic behaves as a 'continuous' population that widely extends over thousands of kilometres with significant isolation by distance (IBD). However, strong barriers to gene flow were detected in the south-eastern part of the range. These barriers coincided with profound changes in environmental characteristics and isolated, on a relatively small scale, porpoises from Iberian waters and on a larger scale porpoises from the Black Sea.Conclusion: The presence of these barriers to gene flow that coincide with profound changes in oceanographic features, together with the spatial variation in IBD strength, provide for the first time strong evidence that physical processes have a major impact on the demographic and genetic structure of a cetacean. This genetic pattern further suggests habitat-related fragmentation of the porpoise range that is likely to intensify with predicted surface ocean warming Article in Journal/Newspaper Harbour porpoise North Atlantic Phocoena phocoena Institut National de la Recherche Agronomique: ProdINRA BMC Biology 5 1 |
institution |
Open Polar |
collection |
Institut National de la Recherche Agronomique: ProdINRA |
op_collection_id |
ftinraparis |
language |
English |
topic |
GENETIQUE DES POPULATIONS;DEMOGRAPHIE;PHOCOENA PHOCOENA;ESPECE PELAGIQUE;MARSOUIN COMMUN océan atlantique espagne pays méditerranéen europe variabilité spatiale cetace |
spellingShingle |
GENETIQUE DES POPULATIONS;DEMOGRAPHIE;PHOCOENA PHOCOENA;ESPECE PELAGIQUE;MARSOUIN COMMUN océan atlantique espagne pays méditerranéen europe variabilité spatiale cetace Fontaine, Michaël Stuart, Stuart Piry, Sylvain Ray, Nicolas Tolley, Krystal A. Duke, Sarah Birkun Jr., Alexei Ferreira, Marisa Jauniaux, Thierry Llavona, Angela Ozturk, Bayram Ozturk, Ayaka A. Ridoux, Vincent Rogan, Emer Sequeira, Marina Siebert, Ursula Vinkingsson, Gisli A. Bouquegneau, Jean-Marie Michaux, Johan Rise of oceanographic barriers in continuous populations of a cetacean: the genetic structure of harbour porpoises in Old World waters |
topic_facet |
GENETIQUE DES POPULATIONS;DEMOGRAPHIE;PHOCOENA PHOCOENA;ESPECE PELAGIQUE;MARSOUIN COMMUN océan atlantique espagne pays méditerranéen europe variabilité spatiale cetace |
description |
Background: Understanding the role of seascape in shaping genetic and demographic population structure is highly challenging for marine pelagic species such as cetaceans for which there is generally little evidence of what could effectively restrict their dispersal. In the present work, we applied a combination of recent individual-based landscape genetic approaches to investigate the population genetic structure of a highly mobile extensive range cetacean, the harbour porpoise in the eastern North Atlantic, with regards to oceanographic characteristics that could constrain its dispersal.Results: Analyses of 10 microsatellite loci for 752 individuals revealed that most of the sampled range in the eastern North Atlantic behaves as a 'continuous' population that widely extends over thousands of kilometres with significant isolation by distance (IBD). However, strong barriers to gene flow were detected in the south-eastern part of the range. These barriers coincided with profound changes in environmental characteristics and isolated, on a relatively small scale, porpoises from Iberian waters and on a larger scale porpoises from the Black Sea.Conclusion: The presence of these barriers to gene flow that coincide with profound changes in oceanographic features, together with the spatial variation in IBD strength, provide for the first time strong evidence that physical processes have a major impact on the demographic and genetic structure of a cetacean. This genetic pattern further suggests habitat-related fragmentation of the porpoise range that is likely to intensify with predicted surface ocean warming |
format |
Article in Journal/Newspaper |
author |
Fontaine, Michaël Stuart, Stuart Piry, Sylvain Ray, Nicolas Tolley, Krystal A. Duke, Sarah Birkun Jr., Alexei Ferreira, Marisa Jauniaux, Thierry Llavona, Angela Ozturk, Bayram Ozturk, Ayaka A. Ridoux, Vincent Rogan, Emer Sequeira, Marina Siebert, Ursula Vinkingsson, Gisli A. Bouquegneau, Jean-Marie Michaux, Johan |
author_facet |
Fontaine, Michaël Stuart, Stuart Piry, Sylvain Ray, Nicolas Tolley, Krystal A. Duke, Sarah Birkun Jr., Alexei Ferreira, Marisa Jauniaux, Thierry Llavona, Angela Ozturk, Bayram Ozturk, Ayaka A. Ridoux, Vincent Rogan, Emer Sequeira, Marina Siebert, Ursula Vinkingsson, Gisli A. Bouquegneau, Jean-Marie Michaux, Johan |
author_sort |
Fontaine, Michaël |
title |
Rise of oceanographic barriers in continuous populations of a cetacean: the genetic structure of harbour porpoises in Old World waters |
title_short |
Rise of oceanographic barriers in continuous populations of a cetacean: the genetic structure of harbour porpoises in Old World waters |
title_full |
Rise of oceanographic barriers in continuous populations of a cetacean: the genetic structure of harbour porpoises in Old World waters |
title_fullStr |
Rise of oceanographic barriers in continuous populations of a cetacean: the genetic structure of harbour porpoises in Old World waters |
title_full_unstemmed |
Rise of oceanographic barriers in continuous populations of a cetacean: the genetic structure of harbour porpoises in Old World waters |
title_sort |
rise of oceanographic barriers in continuous populations of a cetacean: the genetic structure of harbour porpoises in old world waters |
publishDate |
2007 |
url |
http://prodinra.inra.fr/ft/BEA06A62-3531-47AB-B8FD-02527F96C03B http://prodinra.inra.fr/record/19647 https://doi.org/10.1186/1741-7007-5-30 |
genre |
Harbour porpoise North Atlantic Phocoena phocoena |
genre_facet |
Harbour porpoise North Atlantic Phocoena phocoena |
op_source |
BMC Biology (5), 30. (2007) |
op_rights |
http://creativecommons.org/licenses/by-nd-nc/1.0/ |
op_rightsnorm |
CC-BY-ND-NC |
op_doi |
https://doi.org/10.1186/1741-7007-5-30 |
container_title |
BMC Biology |
container_volume |
5 |
container_issue |
1 |
_version_ |
1766023143360561152 |