Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica.
Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica.
复制标题
南极洲大规模气候动态导致的南方硅藻灭绝。
DOI:
10.1126/sciadv.abh3233
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发表时间:
2021-09-17
期刊:
影响因子:
13.6
通讯作者:
Vyverman W
中科院分区:
文献类型:
--
作者:
Pinseel E;Van de Vijver B;Wolfe AP;Harper M;Antoniades D;Ashworth AC;Ector L;Lewis AR;Perren B;Hodgson DA;Sabbe K;Verleyen E;Vyverman W
Miocene and Pleistocene paleolake sediments provide a unique view on the evolution of continental Antarctica’s diatom flora. 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.
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影响因子:
3.7
作者:
Hayashi T;Krebs WN;Saito-Kato M;Tanimura Y
通讯作者:
Tanimura Y
影响因子:
3.9
作者:
Bouchard, G;Gajewski, K;Hamilton, PB
通讯作者:
Hamilton, PB
影响因子:
1.6
作者:
Hejdukova, Eva;Pinseel, Eveline;Sabbe, Koen
通讯作者:
Sabbe, Koen
影响因子:
3.7
作者:
Cermeno, Pedro;de Vargas, Colomban;Falkowski, Paul G.
通讯作者:
Falkowski, Paul G.
DOI:
10.1093/bioinformatics/btv428
发表时间:
2015-11-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Galili T
通讯作者:
Galili T