Ancient crested penguin constrains timing of recruitment into seabird hotspot
New Zealand is a globally significant hotspot for seabird diversity, but the sparse fossil record for most seabird lineages has impeded our understanding of how and when this hotspot developed. Here, we describe multiple exceptionally well-preserved specimens of a new species of penguin from tightly...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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Online Access: | http://dx.doi.org/10.1098/rspb.2020.1497 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2020.1497 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2020.1497 |
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crroyalsociety:10.1098/rspb.2020.1497 2024-09-15T18:37:17+00:00 Ancient crested penguin constrains timing of recruitment into seabird hotspot Thomas, Daniel B. Tennyson, Alan J. D. Scofield, R. Paul Heath, Tracy A. Pett, Walker Ksepka, Daniel T. Massey University Research Fund Division of Environmental Biology National Museum of New Zealand acquisition fund Division of Biological Infrastructure 2020 http://dx.doi.org/10.1098/rspb.2020.1497 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2020.1497 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2020.1497 en eng The Royal Society https://royalsociety.org/-/media/journals/author/Licence-to-Publish-20062019-final.pdf https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 287, issue 1932 ISSN 0962-8452 1471-2954 journal-article 2020 crroyalsociety https://doi.org/10.1098/rspb.2020.1497 2024-08-26T04:21:01Z New Zealand is a globally significant hotspot for seabird diversity, but the sparse fossil record for most seabird lineages has impeded our understanding of how and when this hotspot developed. Here, we describe multiple exceptionally well-preserved specimens of a new species of penguin from tightly dated (3.36–3.06 Ma) Pliocene deposits in New Zealand. Bayesian and parsimony analyses place Eudyptes atatu sp. nov. as the sister species to all extant and recently extinct members of the crested penguin genus Eudyptes . The new species has a markedly more slender upper beak and mandible compared with other Eudyptes penguins. Our combined evidence approach reveals that deep bills evolved in both crested and stiff-tailed penguins ( Pygoscelis ) during the Pliocene. That deep bills arose so late in the greater than 60 million year evolutionary history of penguins suggests that dietary shifts may have occurred as wind-driven Pliocene upwelling radically restructured southern ocean ecosystems. Ancestral area reconstructions using BioGeoBEARS identify New Zealand as the most likely ancestral area for total-group penguins, crown penguins and crested penguins. Our analyses provide a timeframe for recruitment of crown penguins into the New Zealand avifauna, indicating this process began in the late Neogene and was completed via multiple waves of colonizing lineages. Article in Journal/Newspaper Southern Ocean The Royal Society Proceedings of the Royal Society B: Biological Sciences 287 1932 20201497 |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
New Zealand is a globally significant hotspot for seabird diversity, but the sparse fossil record for most seabird lineages has impeded our understanding of how and when this hotspot developed. Here, we describe multiple exceptionally well-preserved specimens of a new species of penguin from tightly dated (3.36–3.06 Ma) Pliocene deposits in New Zealand. Bayesian and parsimony analyses place Eudyptes atatu sp. nov. as the sister species to all extant and recently extinct members of the crested penguin genus Eudyptes . The new species has a markedly more slender upper beak and mandible compared with other Eudyptes penguins. Our combined evidence approach reveals that deep bills evolved in both crested and stiff-tailed penguins ( Pygoscelis ) during the Pliocene. That deep bills arose so late in the greater than 60 million year evolutionary history of penguins suggests that dietary shifts may have occurred as wind-driven Pliocene upwelling radically restructured southern ocean ecosystems. Ancestral area reconstructions using BioGeoBEARS identify New Zealand as the most likely ancestral area for total-group penguins, crown penguins and crested penguins. Our analyses provide a timeframe for recruitment of crown penguins into the New Zealand avifauna, indicating this process began in the late Neogene and was completed via multiple waves of colonizing lineages. |
author2 |
Massey University Research Fund Division of Environmental Biology National Museum of New Zealand acquisition fund Division of Biological Infrastructure |
format |
Article in Journal/Newspaper |
author |
Thomas, Daniel B. Tennyson, Alan J. D. Scofield, R. Paul Heath, Tracy A. Pett, Walker Ksepka, Daniel T. |
spellingShingle |
Thomas, Daniel B. Tennyson, Alan J. D. Scofield, R. Paul Heath, Tracy A. Pett, Walker Ksepka, Daniel T. Ancient crested penguin constrains timing of recruitment into seabird hotspot |
author_facet |
Thomas, Daniel B. Tennyson, Alan J. D. Scofield, R. Paul Heath, Tracy A. Pett, Walker Ksepka, Daniel T. |
author_sort |
Thomas, Daniel B. |
title |
Ancient crested penguin constrains timing of recruitment into seabird hotspot |
title_short |
Ancient crested penguin constrains timing of recruitment into seabird hotspot |
title_full |
Ancient crested penguin constrains timing of recruitment into seabird hotspot |
title_fullStr |
Ancient crested penguin constrains timing of recruitment into seabird hotspot |
title_full_unstemmed |
Ancient crested penguin constrains timing of recruitment into seabird hotspot |
title_sort |
ancient crested penguin constrains timing of recruitment into seabird hotspot |
publisher |
The Royal Society |
publishDate |
2020 |
url |
http://dx.doi.org/10.1098/rspb.2020.1497 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2020.1497 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2020.1497 |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 287, issue 1932 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/-/media/journals/author/Licence-to-Publish-20062019-final.pdf https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2020.1497 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
287 |
container_issue |
1932 |
container_start_page |
20201497 |
_version_ |
1810481637337595904 |