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Proc Natl Acad Sci U S A. 2019 Dec 16; doi: 10.1073/pnas.1904048116. Epub 2019 Dec 16.

Receding ice drove parallel expansions in Southern Ocean penguins.

Proceedings of the National Academy of Sciences of the United States of America

Theresa L Cole, Ludovic Dutoit, Nicolas Dussex, Tom Hart, Alana Alexander, Jane L Younger, Gemma V Clucas, María José Frugone, Yves Cherel, Richard Cuthbert, Ursula Ellenberg, Steven R Fiddaman, Johanna Hiscock, David Houston, Pierre Jouventin, Thomas Mattern, Gary Miller, Colin Miskelly, Paul Nolan, Michael J Polito, Petra Quillfeldt, Peter G Ryan, Adrian Smith, Alan J D Tennyson, David Thompson, Barbara Wienecke, Juliana A Vianna, Jonathan M Waters

Affiliations

  1. Department of Zoology, University of Otago, Dunedin 9054, New Zealand; [email protected].
  2. Long Term Ecology Lab, Manaaki Whenua Landcare Research, Lincoln, Canterbury 7640, New Zealand.
  3. Department of Zoology, University of Otago, Dunedin 9054, New Zealand.
  4. Department of Bioinformatics and Genetics, Swedish Museum of Natural History, Stockholm 17165, Sweden.
  5. Department of Anatomy, University of Otago, Dunedin 9054, New Zealand.
  6. Department of Zoology, University of Oxford, Oxford OX1 3SZ, United Kingdom.
  7. Milner Centre for Evolution, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom.
  8. Atkinson Center for a Sustainable Future, Cornell University, Ithaca, NY 14850.
  9. Cornell Lab of Ornithology, Cornell University, Ithaca, NY 14850.
  10. Laboratorio de Ecología Molecular, Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Ñuñoa, Santiago 7800003, Chile.
  11. Instituto de Ecología y Biodiversidad (IEB), Ñuñoa, Santiago 7800003, Chile.
  12. Centre d'Etudes Biologiques de Chizé, UMR 7372, CNRS-La Rochelle Université, 79360 Villiers-en-Bois, France.
  13. Royal Society for the Protection of Birds, Sandy, Bedfordshire SG19 2DL, United Kingdom.
  14. World Land Trust, Halesworth, Suffolk IP19 8AB, United Kingdom.
  15. Department of Ecology, Environment and Evolution, La Trobe University, Melbourne, VIC 3086, Australia.
  16. Global Penguin Society, University of Washington, Seattle, WA 94107.
  17. Department of Zoology, University of Oxford, Oxford OX1 3SY, United Kingdom.
  18. Department of Conservation, Murihiku District Office, Invercargill 9840, New Zealand.
  19. Biodiversity, Department of Conservation, Auckland 0624, New Zealand.
  20. Centre d'Ecologie Fonctionnelle et Evolutive, UMR 5175, Campus CNRS, 34293 Montpellier Cedex 5, France.
  21. Division of Pathology and Laboratory Medicine, University of Western Australia, Crawley, WA 6009, Australia.
  22. Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia.
  23. Museum of New Zealand Te Papa Tongarewa, Wellington 6140, New Zealand.
  24. Department of Biology, The Citadel, Charleston, SC 29409.
  25. Department of Oceanography and Coastal Sciences, Louisiana State University, Baton Rouge, LA 70803.
  26. Department of Animal Ecology and Systematics, Justus Liebig Universität Giessen, 35392 Giessen, Germany.
  27. FitzPatrick Institute of African Ornithology, University of Cape Town, Rondebosch 7701, South Africa.
  28. National Institute of Water and Atmospheric Research Ltd., Kilbirnie, Wellington 6241, New Zealand.
  29. Department of the Environment and Energy, Australian Antarctic Division, Kingston, TAS 7050, Australia.
  30. Departamento de Ecosistemas y Medio Ambiente, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Macul, Santiago 7820436, Chile.

PMID: 31843914 PMCID: PMC6936587 DOI: 10.1073/pnas.1904048116

Abstract

Climate shifts are key drivers of ecosystem change. Despite the critical importance of Antarctica and the Southern Ocean for global climate, the extent of climate-driven ecological change in this region remains controversial. In particular, the biological effects of changing sea ice conditions are poorly understood. We hypothesize that rapid postglacial reductions in sea ice drove biological shifts across multiple widespread Southern Ocean species. We test for demographic shifts driven by climate events over recent millennia by analyzing population genomic datasets spanning 3 penguin genera (

Keywords: Last Glacial Maximum; Sphenisciformes; climate change; genomics; refugia

Conflict of interest statement

The authors declare no competing interest.

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