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Full circumpolar migration ensures evolutionary unity in the Emperor penguin

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  • Robin Cristofari

    (Université de Strasbourg (UdS), Institut Pluridisciplinaire Hubert Curien
    Centre National de la Recherche Scientifique (CNRS), UMR 7178
    Centre Scientifique de Monaco (CSM)
    Laboratoire International Associé LIA-647 BioSensib, CSM-CNRS-UdS)

  • Giorgio Bertorelle

    (University of Ferrara)

  • André Ancel

    (Université de Strasbourg (UdS), Institut Pluridisciplinaire Hubert Curien
    Centre National de la Recherche Scientifique (CNRS), UMR 7178)

  • Andrea Benazzo

    (University of Ferrara)

  • Yvon Le Maho

    (Université de Strasbourg (UdS), Institut Pluridisciplinaire Hubert Curien
    Centre National de la Recherche Scientifique (CNRS), UMR 7178
    Centre Scientifique de Monaco (CSM)
    Laboratoire International Associé LIA-647 BioSensib, CSM-CNRS-UdS)

  • Paul J. Ponganis

    (Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego)

  • Nils Chr Stenseth

    (Centre for Ecological and Evolutionary Synthesis (CEES), University of Oslo, Postboks, Blindern)

  • Phil N. Trathan

    (British Antarctic Survey, Natutal Environment Research Council, High Cross)

  • Jason D. Whittington

    (Centre Scientifique de Monaco (CSM)
    Laboratoire International Associé LIA-647 BioSensib, CSM-CNRS-UdS
    Centre for Ecological and Evolutionary Synthesis (CEES), University of Oslo, Postboks, Blindern)

  • Enrico Zanetti

    (University of Ferrara)

  • Daniel P. Zitterbart

    (Ocean Acoustics Laboratory, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research
    Woods Hole Oceanographic Institution
    Biophysics Laboratory, University of Erlangen-Nuremberg)

  • Céline Le Bohec

    (Université de Strasbourg (UdS), Institut Pluridisciplinaire Hubert Curien
    Centre National de la Recherche Scientifique (CNRS), UMR 7178
    Centre Scientifique de Monaco (CSM)
    Laboratoire International Associé LIA-647 BioSensib, CSM-CNRS-UdS)

  • Emiliano Trucchi

    (Centre for Ecological and Evolutionary Synthesis (CEES), University of Oslo, Postboks, Blindern
    and Biodiversity Research, University of Vienna)

Abstract

Defining reliable demographic models is essential to understand the threats of ongoing environmental change. Yet, in the most remote and threatened areas, models are often based on the survey of a single population, assuming stationarity and independence in population responses. This is the case for the Emperor penguin Aptenodytes forsteri, a flagship Antarctic species that may be at high risk continent-wide before 2100. Here, using genome-wide data from the whole Antarctic continent, we reveal that this top-predator is organized as one single global population with a shared demography since the late Quaternary. We refute the view of the local population as a relevant demographic unit, and highlight that (i) robust extinction risk estimations are only possible by including dispersal rates and (ii) colony-scaled population size is rather indicative of local stochastic events, whereas the species’ response to global environmental change is likely to follow a shared evolutionary trajectory.

Suggested Citation

  • Robin Cristofari & Giorgio Bertorelle & André Ancel & Andrea Benazzo & Yvon Le Maho & Paul J. Ponganis & Nils Chr Stenseth & Phil N. Trathan & Jason D. Whittington & Enrico Zanetti & Daniel P. Zitterb, 2016. "Full circumpolar migration ensures evolutionary unity in the Emperor penguin," Nature Communications, Nature, vol. 7(1), pages 1-9, September.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11842
    DOI: 10.1038/ncomms11842
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