Rapid radiation of Southern Ocean shags in response to receding sea ice
International audience AimUnderstanding how natural populations respond to climatic shifts is a fundamental goal of biological research in a fast-changing world. The Southern Ocean represents a fascinating system for assessing large-scale climate-driven biological change, as it contains extremely is...
Published in: | Journal of Biogeography |
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Language: | English |
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Online Access: | https://hal.science/hal-03653190 https://doi.org/10.1111/jbi.14360 |
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ftunivnantes:oai:HAL:hal-03653190v1 2023-05-15T13:43:27+02:00 Rapid radiation of Southern Ocean shags in response to receding sea ice Rawlence, Nicolas Salis, Alexander Spencer, Hamish Waters, Jonathan m. Scarsbrook, Lachie Mitchell, Kieren Phillips, Richard Calderón, Luciano Cook, Timothée Bost, Charles‐andré Dutoit, Ludovic King, Tania m. Masello, Juan Nupen, Lisa Quillfeldt, Petra Ratcliffe, Norman Ryan, Peter Till, Charlotte Kennedy, Martyn University of Otago Dunedin, Nouvelle-Zélande British Antarctic Survey (BAS) Natural Environment Research Council (NERC) Instituto de Biología Agrícola de Mendoza FitzPatrick Institute of African Ornithology University of Cape Town-DST-NRF Centre of Excellence Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Justus-Liebig-Universität Gießen = Justus Liebig University (JLU) Organisation for Tropical Studies South Africa 2022-05 https://hal.science/hal-03653190 https://doi.org/10.1111/jbi.14360 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/jbi.14360 hal-03653190 https://hal.science/hal-03653190 doi:10.1111/jbi.14360 ISSN: 0305-0270 EISSN: 1365-2699 Journal of Biogeography https://hal.science/hal-03653190 Journal of Biogeography, 2022, 49 (5), pp.942-953. ⟨10.1111/jbi.14360⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2022 ftunivnantes https://doi.org/10.1111/jbi.14360 2023-03-08T01:48:36Z International audience AimUnderstanding how natural populations respond to climatic shifts is a fundamental goal of biological research in a fast-changing world. The Southern Ocean represents a fascinating system for assessing large-scale climate-driven biological change, as it contains extremely isolated island groups within a predominantly westerly, circumpolar wind and current system. Blue-eyed shags represent a paradoxical seabird radiation—a circumpolar distribution implies strong dispersal capacity yet their species-rich nature suggests local adaptation and isolation. Here we attempt to resolve this paradox in light of the history of repeated cycles of climate change in the Southern Ocean.LocationSouthern Ocean.Taxa16 species and subspecies of blue-eyed shags (Phalacrocoracidae; Leucocarbo spp.).MethodsWe use mitochondrial and nuclear sequence data from individuals across the geographical range of the genus to conduct the first comprehensive, time-calibrated phylogenetic analyses and ancestral-range biogeographical reconstructions of the blue-eyed shags.ResultsThe origins of many island-endemic lineages are remarkably recent, consistent with a recent high-latitude circumpolar radiation in the Pliocene or Early Pleistocene. This recent sub-Antarctic expansion contrasts with significantly deeper lineages detected in South America and, to a lesser extent, New Zealand. These regions, particularly South America, acted as glacial refugia and sources for multiple waves of post-glacial dispersal.Main conclusionsThe blue-eyed shag paradox is resolved, with at least two waves of dispersal, linked to interglacial cycles, explaining the current distribution and diversity. Descendants of a Pliocene or Early Pleistocene wave of dispersal out of South America survive in the New Zealand region. In contrast, taxa distributed on sub-Antarctic islands originated much later, possibly since the Last Glacial Maximum. Blue-eyed shags therefore represent a powerful model system—comprising several natural replicates—for studying ... Article in Journal/Newspaper Antarc* Antarctic Blue Eyed Shag Sea ice Southern Ocean Université de Nantes: HAL-UNIV-NANTES Antarctic New Zealand Southern Ocean Journal of Biogeography 49 5 942 953 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Rawlence, Nicolas Salis, Alexander Spencer, Hamish Waters, Jonathan m. Scarsbrook, Lachie Mitchell, Kieren Phillips, Richard Calderón, Luciano Cook, Timothée Bost, Charles‐andré Dutoit, Ludovic King, Tania m. Masello, Juan Nupen, Lisa Quillfeldt, Petra Ratcliffe, Norman Ryan, Peter Till, Charlotte Kennedy, Martyn Rapid radiation of Southern Ocean shags in response to receding sea ice |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience AimUnderstanding how natural populations respond to climatic shifts is a fundamental goal of biological research in a fast-changing world. The Southern Ocean represents a fascinating system for assessing large-scale climate-driven biological change, as it contains extremely isolated island groups within a predominantly westerly, circumpolar wind and current system. Blue-eyed shags represent a paradoxical seabird radiation—a circumpolar distribution implies strong dispersal capacity yet their species-rich nature suggests local adaptation and isolation. Here we attempt to resolve this paradox in light of the history of repeated cycles of climate change in the Southern Ocean.LocationSouthern Ocean.Taxa16 species and subspecies of blue-eyed shags (Phalacrocoracidae; Leucocarbo spp.).MethodsWe use mitochondrial and nuclear sequence data from individuals across the geographical range of the genus to conduct the first comprehensive, time-calibrated phylogenetic analyses and ancestral-range biogeographical reconstructions of the blue-eyed shags.ResultsThe origins of many island-endemic lineages are remarkably recent, consistent with a recent high-latitude circumpolar radiation in the Pliocene or Early Pleistocene. This recent sub-Antarctic expansion contrasts with significantly deeper lineages detected in South America and, to a lesser extent, New Zealand. These regions, particularly South America, acted as glacial refugia and sources for multiple waves of post-glacial dispersal.Main conclusionsThe blue-eyed shag paradox is resolved, with at least two waves of dispersal, linked to interglacial cycles, explaining the current distribution and diversity. Descendants of a Pliocene or Early Pleistocene wave of dispersal out of South America survive in the New Zealand region. In contrast, taxa distributed on sub-Antarctic islands originated much later, possibly since the Last Glacial Maximum. Blue-eyed shags therefore represent a powerful model system—comprising several natural replicates—for studying ... |
author2 |
University of Otago Dunedin, Nouvelle-Zélande British Antarctic Survey (BAS) Natural Environment Research Council (NERC) Instituto de Biología Agrícola de Mendoza FitzPatrick Institute of African Ornithology University of Cape Town-DST-NRF Centre of Excellence Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Justus-Liebig-Universität Gießen = Justus Liebig University (JLU) Organisation for Tropical Studies South Africa |
format |
Article in Journal/Newspaper |
author |
Rawlence, Nicolas Salis, Alexander Spencer, Hamish Waters, Jonathan m. Scarsbrook, Lachie Mitchell, Kieren Phillips, Richard Calderón, Luciano Cook, Timothée Bost, Charles‐andré Dutoit, Ludovic King, Tania m. Masello, Juan Nupen, Lisa Quillfeldt, Petra Ratcliffe, Norman Ryan, Peter Till, Charlotte Kennedy, Martyn |
author_facet |
Rawlence, Nicolas Salis, Alexander Spencer, Hamish Waters, Jonathan m. Scarsbrook, Lachie Mitchell, Kieren Phillips, Richard Calderón, Luciano Cook, Timothée Bost, Charles‐andré Dutoit, Ludovic King, Tania m. Masello, Juan Nupen, Lisa Quillfeldt, Petra Ratcliffe, Norman Ryan, Peter Till, Charlotte Kennedy, Martyn |
author_sort |
Rawlence, Nicolas |
title |
Rapid radiation of Southern Ocean shags in response to receding sea ice |
title_short |
Rapid radiation of Southern Ocean shags in response to receding sea ice |
title_full |
Rapid radiation of Southern Ocean shags in response to receding sea ice |
title_fullStr |
Rapid radiation of Southern Ocean shags in response to receding sea ice |
title_full_unstemmed |
Rapid radiation of Southern Ocean shags in response to receding sea ice |
title_sort |
rapid radiation of southern ocean shags in response to receding sea ice |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03653190 https://doi.org/10.1111/jbi.14360 |
geographic |
Antarctic New Zealand Southern Ocean |
geographic_facet |
Antarctic New Zealand Southern Ocean |
genre |
Antarc* Antarctic Blue Eyed Shag Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Blue Eyed Shag Sea ice Southern Ocean |
op_source |
ISSN: 0305-0270 EISSN: 1365-2699 Journal of Biogeography https://hal.science/hal-03653190 Journal of Biogeography, 2022, 49 (5), pp.942-953. ⟨10.1111/jbi.14360⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/jbi.14360 hal-03653190 https://hal.science/hal-03653190 doi:10.1111/jbi.14360 |
op_doi |
https://doi.org/10.1111/jbi.14360 |
container_title |
Journal of Biogeography |
container_volume |
49 |
container_issue |
5 |
container_start_page |
942 |
op_container_end_page |
953 |
_version_ |
1766189162702045184 |