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: |
2021
|
Subjects: | |
Online Access: | https://www.vliz.be/imisdocs/publications/368253.pdf |
id |
ftvliz:oai:oma.vliz.be:345125 |
---|---|
record_format |
openpolar |
spelling |
ftvliz:oai:oma.vliz.be:345125 2023-05-15T13:42:51+02:00 Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica Pinseel, E. Van de Vijver, B. Wolfe, A. P. Harper, M. Antoniades, D. Ashworth, A.C. Ector, L. Lewis, A.R. Perren, B. Hodgson, D.A. Sabbe, K. Verleyen, E. Vyverman, W. 2021 application/pdf https://www.vliz.be/imisdocs/publications/368253.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000697350600027 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1126/sciadv.abh3233 https://www.vliz.be/imisdocs/publications/368253.pdf info:eu-repo/semantics/openAccess %3Ci%3EScience+Advances+7%2838%29%3C%2Fi%3E%3A+eabh3233.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1126%2Fsciadv.abh3233%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1126%2Fsciadv.abh3233%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftvliz https://doi.org/10.1126/sciadv.abh3233 2022-05-01T12:12:49Z 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 Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Antarctic Austral Science Advances 7 38 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
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, E. Van de Vijver, B. Wolfe, A. P. Harper, M. Antoniades, D. Ashworth, A.C. Ector, L. Lewis, A.R. Perren, B. Hodgson, D.A. Sabbe, K. Verleyen, E. Vyverman, W. |
spellingShingle |
Pinseel, E. Van de Vijver, B. Wolfe, A. P. Harper, M. Antoniades, D. Ashworth, A.C. Ector, L. Lewis, A.R. Perren, B. Hodgson, D.A. Sabbe, K. Verleyen, E. Vyverman, W. Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica |
author_facet |
Pinseel, E. Van de Vijver, B. Wolfe, A. P. Harper, M. Antoniades, D. Ashworth, A.C. Ector, L. Lewis, A.R. Perren, B. Hodgson, D.A. Sabbe, K. Verleyen, E. Vyverman, W. |
author_sort |
Pinseel, E. |
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 |
publishDate |
2021 |
url |
https://www.vliz.be/imisdocs/publications/368253.pdf |
geographic |
Antarctic Austral |
geographic_facet |
Antarctic Austral |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
%3Ci%3EScience+Advances+7%2838%29%3C%2Fi%3E%3A+eabh3233.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1126%2Fsciadv.abh3233%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1126%2Fsciadv.abh3233%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000697350600027 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1126/sciadv.abh3233 https://www.vliz.be/imisdocs/publications/368253.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1126/sciadv.abh3233 |
container_title |
Science Advances |
container_volume |
7 |
container_issue |
38 |
_version_ |
1766173359425454080 |