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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Rise of oceanographic barriers in continuous populations of a cetacean: The genetic structure of harbour porpoises in Old World waters
BMC Biology, Volume 5, Article 30, Year 2007
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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. © 2007 Fontaine et al; licensee BioMed Central Ltd.
Available Materials
https://efashare.b-cdn.net/share/pmc/articles/PMC1971045/bin/1741-7007-5-30-S1.pdf
Authors & Co-Authors
Fontaine, Michaël C.
Belgium, Liege
Université de Liège
France, Montferrier-sur-lez
Centre de Biologie Pour la Gestion Des Populations Cbgp
Baird, Stuart J.E.
France, Montferrier-sur-lez
Centre de Biologie Pour la Gestion Des Populations Cbgp
Piry, Sylvain
France, Montferrier-sur-lez
Centre de Biologie Pour la Gestion Des Populations Cbgp
Ray, Nicolas
Switzerland, Bern
University of Bern
Tolley, Krystal A.
Norway, Bergen
Havforskningsinstituttet
South Africa, Pretoria
South African National Biodiversity Institute
Duke, Sarah
Ireland, Dublin
University College Dublin
Birkun, Alexei A.
Ukraine, Simferopol
Laboratory of Biotechnological Research in Ecology
Ferreira, Marisa
Portugal, Figueira da Foz
Estação de Campo de Quiaios
Jauniaux, Thierry P.
Belgium, Liege
Université de Liège
Llavona, Ángela
Unknown Affiliation
Öztürk, Bayram
Turkey, Istanbul
Istanbul Üniversitesi
Özẗurk, Ayaka Amaha
Turkey, Istanbul
Istanbul Üniversitesi
Ridoux, Vincent
France, La Rochelle
Institut du Littoral et de L'environnement
Rogan, E.
Ireland, Cork
University College Cork
Sequeira, Marina
Portugal, Lisbon
Instituto da Conservação da Natureza
Siebert, Ursula
Germany, Kiel
Christian-albrechts-universität zu Kiel
Víkingsson, Gísli A.
Iceland, Reykjavik
Marine Research Institute Reykjavik
Bouquegneau, Jean Marie
Belgium, Liege
Université de Liège
Michaux, Johan R.
France, Montferrier-sur-lez
Centre de Biologie Pour la Gestion Des Populations Cbgp
Belgium, Liege
Université de Liège
Statistics
Citations: 190
Authors: 19
Affiliations: 14
Identifiers
Doi:
10.1186/1741-7007-5-30
e-ISSN:
17417007
Research Areas
Genetics And Genomics
Study Design
Cross Sectional Study