Habitat‐driven population structure of bottlenose dolphins, Tursiops truncatus, in the North‐ East Atlantic
Abstract Despite no obvious barrier to gene flow, historical environmental processes and ecological specializations can lead to genetic differentiation in highly mobile animals. Ecotypes emerged in several large mammal species as a result of niche specializations and/or social organization. In the N...
Published in: | Molecular Ecology |
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Online Access: | http://dx.doi.org/10.1111/mec.12653 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.12653 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.12653 |
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crwiley:10.1111/mec.12653 2024-09-09T19:58:30+00:00 Habitat‐driven population structure of bottlenose dolphins, Tursiops truncatus, in the North‐ East Atlantic Louis, Marie Viricel, Amélia Lucas, Tamara Peltier, Hélène Alfonsi, Eric Berrow, Simon Brownlow, Andrew Covelo, Pablo Dabin, Willy Deaville, Rob de Stephanis, Renaud Gally, François Gauffier, Pauline Penrose, Rod Silva, Monica A. Guinet, Christophe Simon‐Bouhet, Benoit FCT TRACE MAPCET Defra and the Devolved Administrations of Scotland and Wales du Développement Durable et de l'Energie Conseil Général de la Manche Science Technology and Innovation Programme of National Development European Regional Development Funds (ERDF/FEDER) Fondation Total Agence de l'Eau Seine-Normandie Fonds de Dotation pour la Biodiversité Agence des Aires Marines Protégées Association Nationale de la Recherche et de la Technologie Direction Régionale de l'Environnement, de l'Aménagement et du Logement, Ministère de l'Ecologie 2014 http://dx.doi.org/10.1111/mec.12653 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.12653 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.12653 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 Molecular Ecology volume 23, issue 4, page 857-874 ISSN 0962-1083 1365-294X journal-article 2014 crwiley https://doi.org/10.1111/mec.12653 2024-08-09T04:25:39Z Abstract Despite no obvious barrier to gene flow, historical environmental processes and ecological specializations can lead to genetic differentiation in highly mobile animals. Ecotypes emerged in several large mammal species as a result of niche specializations and/or social organization. In the N orth‐ W est A tlantic, two distinct bottlenose dolphin ( T ursiops truncatus ) ecotypes (i.e. ‘coastal’ and ‘pelagic’) have been identified. Here, we investigated the genetic population structure of N orth‐ E ast A tlantic ( NEA ) bottlenose dolphins on a large scale through the analysis of 381 biopsy‐sampled or stranded animals using 25 microsatellites and a 682‐bp portion of the mitochondrial control region. We shed light on the likely origin of stranded animals using a carcass drift prediction model. We showed, for the first time, that coastal and pelagic bottlenose dolphins were highly differentiated in the NEA . Finer‐scale population structure was found within the two groups. We suggest that distinct founding events followed by parallel adaptation may have occurred independently from a large A tlantic pelagic population in the two sides of the basin. Divergence could be maintained by philopatry possibly as a result of foraging specializations and social organization. As coastal environments are under increasing anthropogenic pressures, small and isolated populations might be at risk and require appropriate conservation policies to preserve their habitats. While genetics can be a powerful first step to delineate ecotypes in protected and difficult to access taxa, ecotype distinction should be further documented through diet studies and the examination of cranial skull features associated with feeding. Article in Journal/Newspaper North East Atlantic Wiley Online Library Molecular Ecology 23 4 857 874 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Despite no obvious barrier to gene flow, historical environmental processes and ecological specializations can lead to genetic differentiation in highly mobile animals. Ecotypes emerged in several large mammal species as a result of niche specializations and/or social organization. In the N orth‐ W est A tlantic, two distinct bottlenose dolphin ( T ursiops truncatus ) ecotypes (i.e. ‘coastal’ and ‘pelagic’) have been identified. Here, we investigated the genetic population structure of N orth‐ E ast A tlantic ( NEA ) bottlenose dolphins on a large scale through the analysis of 381 biopsy‐sampled or stranded animals using 25 microsatellites and a 682‐bp portion of the mitochondrial control region. We shed light on the likely origin of stranded animals using a carcass drift prediction model. We showed, for the first time, that coastal and pelagic bottlenose dolphins were highly differentiated in the NEA . Finer‐scale population structure was found within the two groups. We suggest that distinct founding events followed by parallel adaptation may have occurred independently from a large A tlantic pelagic population in the two sides of the basin. Divergence could be maintained by philopatry possibly as a result of foraging specializations and social organization. As coastal environments are under increasing anthropogenic pressures, small and isolated populations might be at risk and require appropriate conservation policies to preserve their habitats. While genetics can be a powerful first step to delineate ecotypes in protected and difficult to access taxa, ecotype distinction should be further documented through diet studies and the examination of cranial skull features associated with feeding. |
author2 |
FCT TRACE MAPCET Defra and the Devolved Administrations of Scotland and Wales du Développement Durable et de l'Energie Conseil Général de la Manche Science Technology and Innovation Programme of National Development European Regional Development Funds (ERDF/FEDER) Fondation Total Agence de l'Eau Seine-Normandie Fonds de Dotation pour la Biodiversité Agence des Aires Marines Protégées Association Nationale de la Recherche et de la Technologie Direction Régionale de l'Environnement, de l'Aménagement et du Logement, Ministère de l'Ecologie |
format |
Article in Journal/Newspaper |
author |
Louis, Marie Viricel, Amélia Lucas, Tamara Peltier, Hélène Alfonsi, Eric Berrow, Simon Brownlow, Andrew Covelo, Pablo Dabin, Willy Deaville, Rob de Stephanis, Renaud Gally, François Gauffier, Pauline Penrose, Rod Silva, Monica A. Guinet, Christophe Simon‐Bouhet, Benoit |
spellingShingle |
Louis, Marie Viricel, Amélia Lucas, Tamara Peltier, Hélène Alfonsi, Eric Berrow, Simon Brownlow, Andrew Covelo, Pablo Dabin, Willy Deaville, Rob de Stephanis, Renaud Gally, François Gauffier, Pauline Penrose, Rod Silva, Monica A. Guinet, Christophe Simon‐Bouhet, Benoit Habitat‐driven population structure of bottlenose dolphins, Tursiops truncatus, in the North‐ East Atlantic |
author_facet |
Louis, Marie Viricel, Amélia Lucas, Tamara Peltier, Hélène Alfonsi, Eric Berrow, Simon Brownlow, Andrew Covelo, Pablo Dabin, Willy Deaville, Rob de Stephanis, Renaud Gally, François Gauffier, Pauline Penrose, Rod Silva, Monica A. Guinet, Christophe Simon‐Bouhet, Benoit |
author_sort |
Louis, Marie |
title |
Habitat‐driven population structure of bottlenose dolphins, Tursiops truncatus, in the North‐ East Atlantic |
title_short |
Habitat‐driven population structure of bottlenose dolphins, Tursiops truncatus, in the North‐ East Atlantic |
title_full |
Habitat‐driven population structure of bottlenose dolphins, Tursiops truncatus, in the North‐ East Atlantic |
title_fullStr |
Habitat‐driven population structure of bottlenose dolphins, Tursiops truncatus, in the North‐ East Atlantic |
title_full_unstemmed |
Habitat‐driven population structure of bottlenose dolphins, Tursiops truncatus, in the North‐ East Atlantic |
title_sort |
habitat‐driven population structure of bottlenose dolphins, tursiops truncatus, in the north‐ east atlantic |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1111/mec.12653 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.12653 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.12653 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
Molecular Ecology volume 23, issue 4, page 857-874 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 |
op_doi |
https://doi.org/10.1111/mec.12653 |
container_title |
Molecular Ecology |
container_volume |
23 |
container_issue |
4 |
container_start_page |
857 |
op_container_end_page |
874 |
_version_ |
1809929561992855552 |