Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica
Despite evidence for microbial endemism, an understanding of the impact of geological and paleoclimate events on the evolution of regional protist communities remains elusive. Here, we provide insights into the biogeographical history of Antarctic freshwater diatoms, using lacustrine fossils from mi...
Published in: | Science Advances |
---|---|
Main Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Association for the Advancement of Science
2021
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/529833/ https://nora.nerc.ac.uk/id/eprint/529833/1/sciadv.abh3233.pdf https://www.science.org/doi/full/10.1126/sciadv.abh3233 |
id |
ftnerc:oai:nora.nerc.ac.uk:529833 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:529833 2023-05-15T13:41:45+02:00 Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica Pinseel, Eveline Van de Vijver, Bart Wolfe, Alexander P. Harper, Margaret Antoniades, Dermot Ashworth, Allan C. Ector, Luc Lewis, Adam R. Perren, Bianca Hodgson, Dominic A. Sabbe, Koen Verleyen, Elie Vyverman, Wim 2021-09-15 text http://nora.nerc.ac.uk/id/eprint/529833/ https://nora.nerc.ac.uk/id/eprint/529833/1/sciadv.abh3233.pdf https://www.science.org/doi/full/10.1126/sciadv.abh3233 en eng American Association for the Advancement of Science https://nora.nerc.ac.uk/id/eprint/529833/1/sciadv.abh3233.pdf Pinseel, Eveline; Van de Vijver, Bart; Wolfe, Alexander P.; Harper, Margaret; Antoniades, Dermot; Ashworth, Allan C.; Ector, Luc; Lewis, Adam R.; Perren, Bianca orcid:0000-0001-6089-6468 Hodgson, Dominic A. orcid:0000-0002-3841-3746 Sabbe, Koen; Verleyen, Elie; Vyverman, Wim. 2021 Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica. Science Advances, 7 (38), eabh3233. 14, pp. https://doi.org/10.1126/sciadv.abh3233 <https://doi.org/10.1126/sciadv.abh3233> cc_by_nc_4 CC-BY-NC Publication - Article PeerReviewed 2021 ftnerc https://doi.org/10.1126/sciadv.abh3233 2023-02-04T19:51:49Z Despite evidence for microbial endemism, an understanding of the impact of geological and paleoclimate events on the evolution of regional protist communities remains elusive. Here, we provide insights into the biogeographical history of Antarctic freshwater diatoms, using lacustrine fossils from mid-Miocene and Quaternary Antarctica, and dovetail this dataset with a global inventory of modern freshwater diatom communities. We reveal the existence of a diverse mid-Miocene diatom flora bearing similarities with several former Gondwanan landmasses. Miocene cooling and Plio-Pleistocene glaciations triggered multiple extinction waves, resulting in the selective depauperation of this flora. Although extinction dominated, in situ speciation and new colonizations ultimately shaped the species-poor, yet highly adapted and largely endemic, modern Antarctic diatom flora. Our results provide a more holistic view on the scale of biodiversity turnover in Neogene and Pleistocene Antarctica than the fragmentary perspective offered by macrofossils and underscore the sensitivity of lacustrine microbiota to large-scale climate perturbations. Article in Journal/Newspaper Antarc* Antarctic Antarctica Natural Environment Research Council: NERC Open Research Archive Antarctic Austral Science Advances 7 38 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Despite evidence for microbial endemism, an understanding of the impact of geological and paleoclimate events on the evolution of regional protist communities remains elusive. Here, we provide insights into the biogeographical history of Antarctic freshwater diatoms, using lacustrine fossils from mid-Miocene and Quaternary Antarctica, and dovetail this dataset with a global inventory of modern freshwater diatom communities. We reveal the existence of a diverse mid-Miocene diatom flora bearing similarities with several former Gondwanan landmasses. Miocene cooling and Plio-Pleistocene glaciations triggered multiple extinction waves, resulting in the selective depauperation of this flora. Although extinction dominated, in situ speciation and new colonizations ultimately shaped the species-poor, yet highly adapted and largely endemic, modern Antarctic diatom flora. Our results provide a more holistic view on the scale of biodiversity turnover in Neogene and Pleistocene Antarctica than the fragmentary perspective offered by macrofossils and underscore the sensitivity of lacustrine microbiota to large-scale climate perturbations. |
format |
Article in Journal/Newspaper |
author |
Pinseel, Eveline Van de Vijver, Bart Wolfe, Alexander P. Harper, Margaret Antoniades, Dermot Ashworth, Allan C. Ector, Luc Lewis, Adam R. Perren, Bianca Hodgson, Dominic A. Sabbe, Koen Verleyen, Elie Vyverman, Wim |
spellingShingle |
Pinseel, Eveline Van de Vijver, Bart Wolfe, Alexander P. Harper, Margaret Antoniades, Dermot Ashworth, Allan C. Ector, Luc Lewis, Adam R. Perren, Bianca Hodgson, Dominic A. Sabbe, Koen Verleyen, Elie Vyverman, Wim Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica |
author_facet |
Pinseel, Eveline Van de Vijver, Bart Wolfe, Alexander P. Harper, Margaret Antoniades, Dermot Ashworth, Allan C. Ector, Luc Lewis, Adam R. Perren, Bianca Hodgson, Dominic A. Sabbe, Koen Verleyen, Elie Vyverman, Wim |
author_sort |
Pinseel, Eveline |
title |
Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica |
title_short |
Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica |
title_full |
Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica |
title_fullStr |
Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica |
title_full_unstemmed |
Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica |
title_sort |
extinction of austral diatoms in response to large-scale climate dynamics in antarctica |
publisher |
American Association for the Advancement of Science |
publishDate |
2021 |
url |
http://nora.nerc.ac.uk/id/eprint/529833/ https://nora.nerc.ac.uk/id/eprint/529833/1/sciadv.abh3233.pdf https://www.science.org/doi/full/10.1126/sciadv.abh3233 |
geographic |
Antarctic Austral |
geographic_facet |
Antarctic Austral |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
https://nora.nerc.ac.uk/id/eprint/529833/1/sciadv.abh3233.pdf Pinseel, Eveline; Van de Vijver, Bart; Wolfe, Alexander P.; Harper, Margaret; Antoniades, Dermot; Ashworth, Allan C.; Ector, Luc; Lewis, Adam R.; Perren, Bianca orcid:0000-0001-6089-6468 Hodgson, Dominic A. orcid:0000-0002-3841-3746 Sabbe, Koen; Verleyen, Elie; Vyverman, Wim. 2021 Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica. Science Advances, 7 (38), eabh3233. 14, pp. https://doi.org/10.1126/sciadv.abh3233 <https://doi.org/10.1126/sciadv.abh3233> |
op_rights |
cc_by_nc_4 |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1126/sciadv.abh3233 |
container_title |
Science Advances |
container_volume |
7 |
container_issue |
38 |
_version_ |
1766157326715191296 |