Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica

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Abstract

Miocene and Pleistocene paleolake sediments provide a unique view on the evolution of continental Antarctica’s diatom flora.

Abstract

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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Most cited references 89

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Trends, rhythms, and aberrations in global climate 65 Ma to present.

J Zachos, M. Pagani, L. Sloan … (2001)

Since 65 million years ago (Ma), Earth's climate has undergone a significant and complex evolution, the finer details of which are now coming to light through investigations of deep-sea sediment cores. This evolution includes gradual trends of warming and cooling driven by tectonic processes on time scales of 10(5) to 10(7) years, rhythmic or periodic cycles driven by orbital processes with 10(4)- to 10(6)-year cyclicity, and rare rapid aberrant shifts and extreme climate transients with durations of 10(3) to 10(5) years. Here, recent progress in defining the evolution of global climate over the Cenozoic Era is reviewed. We focus primarily on the periodic and anomalous components of variability over the early portion of this era, as constrained by the latest generation of deep-sea isotope records. We also consider how this improved perspective has led to the recognition of previously unforeseen mechanisms for altering climate.

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dendextend: an R package for visualizing, adjusting and comparing trees of hierarchical clustering

Tal Galili (2015)

Summary: dendextend is an R package for creating and comparing visually appealing tree diagrams. dendextend provides utility functions for manipulating dendrogram objects (their color, shape and content) as well as several advanced methods for comparing trees to one another (both statistically and visually). As such, dendextend offers a flexible framework for enhancing R's rich ecosystem of packages for performing hierarchical clustering of items. Availability and implementation: The dendextend R package (including detailed introductory vignettes) is available under the GPL-2 Open Source license and is freely available to download from CRAN at: (http://cran.r-project.org/package=dendextend) Contact: Tal.Galili@math.tau.ac.il

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Beyond biogeographic patterns: processes shaping the microbial landscape.

Ginger C Hanson, Jed Fuhrman, Stacy Horner … (2012)

Recently, microbiologists have established the existence of biogeographic patterns among a wide range of microorganisms. The focus of the field is now shifting to identifying the mechanisms that shape these patterns. Here, we propose that four processes - selection, drift, dispersal and mutation - create and maintain microbial biogeographic patterns on inseparable ecological and evolutionary scales. We consider how the interplay of these processes affects one biogeographic pattern, the distance-decay relationship, and review evidence from the published literature for the processes driving this pattern in microorganisms. Given the limitations of inferring processes from biogeographic patterns, we suggest that studies should focus on directly testing the underlying processes.

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Author and article information

Contributors

Eveline Pinseel:

ORCID: https://orcid.org/0000-0002-1801-2187

Role: ConceptualizationRole: Data curationRole: Formal analysisRole: Funding acquisitionRole: InvestigationRole: MethodologyRole: ValidationRole: VisualizationRole: Writing - original draftRole: Writing - review & editing

Bart Van de Vijver:

ORCID: https://orcid.org/0000-0002-6244-1886

Role: ConceptualizationRole: Data curationRole: InvestigationRole: ResourcesRole: ValidationRole: VisualizationRole: Writing - original draftRole: Writing - review & editing

Alexander P. Wolfe: Role: ConceptualizationRole: InvestigationRole: MethodologyRole: ResourcesRole: ValidationRole: VisualizationRole: Writing - original draftRole: Writing - review & editing

Margaret Harper:

ORCID: https://orcid.org/0000-0002-7902-6486

Role: InvestigationRole: ResourcesRole: Validation

Dermot Antoniades:

ORCID: https://orcid.org/0000-0001-6629-4839

Role: InvestigationRole: ResourcesRole: Writing - review & editing

Allan C. Ashworth: Role: ConceptualizationRole: Funding acquisitionRole: Resources

Luc Ector:

ORCID: https://orcid.org/0000-0002-4573-9445

Role: Data curationRole: Investigation

Adam R. Lewis: Role: Funding acquisitionRole: InvestigationRole: ResourcesRole: Writing - review & editing

Bianca Perren:

ORCID: https://orcid.org/0000-0001-6089-6468

Role: Investigation

Dominic A. Hodgson:

ORCID: https://orcid.org/0000-0002-3841-3746

Role: Funding acquisitionRole: InvestigationRole: ResourcesRole: SupervisionRole: ValidationRole: Writing - review & editing

Koen Sabbe: Role: ConceptualizationRole: InvestigationRole: ValidationRole: Writing - original draftRole: Writing - review & editing

Elie Verleyen:

ORCID: https://orcid.org/0000-0003-1426-2960

Role: ConceptualizationRole: Data curationRole: Formal analysisRole: Funding acquisitionRole: InvestigationRole: MethodologyRole: Project administrationRole: ResourcesRole: ValidationRole: Writing - review & editing

Wim Vyverman:

ORCID: https://orcid.org/0000-0003-0850-2569

Role: ConceptualizationRole: Data curationRole: Funding acquisitionRole: InvestigationRole: MethodologyRole: Project administrationRole: ResourcesRole: SupervisionRole: ValidationRole: VisualizationRole: Writing - original draft

Journal

Journal ID (nlm-ta): Sci Adv

Journal ID (publisher-id): sciadv

Journal ID (hwp): advances

Title: Science Advances

Publisher: American Association for the Advancement of Science

ISSN (Electronic): 2375-2548

Publication date Collection: September 2021

Publication date (Electronic, pub): 15 September 2021

Volume: 7

Issue: 38

Electronic Location Identifier: eabh3233

Affiliations

[1 ]Laboratory of Protistology and Aquatic Ecology, Department of Biology, Ghent University, Ghent, Belgium.

[2 ]Meise Botanic Garden, Meise, Belgium.

[3 ]Ecosystem Management Research Group (ECOBE), Department of Biology, University of Antwerp, Wilrijk, Belgium.

[4 ]Department of Biological Sciences, University of Alberta, Edmonton, Canada.

[5 ]School of Geography, Environment and Earth Sciences, Victoria University of Wellington, Wellington, New Zealand.

[6 ]Department of Geography and Centre for Northern Studies (CEN), Laval University, Quebec, Canada.

[7 ]Department of Geosciences, North Dakota State University, Fargo, ND, USA.

[8 ]Observatory for Climate, Environment and Biodiversity, Environment Research and Innovation Department, Luxembourg Institute of Science and Technology, Belvaux, Luxembourg.

[9 ]British Antarctic Survey, Cambridge, UK.

[10 ]Department of Geography, University of Durham, Durham, UK.

Author notes

[* ]Corresponding author. Email: eveline.pinseel@ 123456gmail.com (E.P.); wim.vyverman@ 123456ugent.be (W.V.)

[†]

Present address: Department of Biological Sciences, University of Arkansas, Fayetteville, AR, USA.

Author information

Eveline Pinseel https://orcid.org/0000-0002-1801-2187

Bart Van de Vijver https://orcid.org/0000-0002-6244-1886

Margaret Harper https://orcid.org/0000-0002-7902-6486

Dermot Antoniades https://orcid.org/0000-0001-6629-4839

Luc Ector https://orcid.org/0000-0002-4573-9445

Bianca Perren https://orcid.org/0000-0001-6089-6468

Dominic A. Hodgson https://orcid.org/0000-0002-3841-3746

Elie Verleyen https://orcid.org/0000-0003-1426-2960

Wim Vyverman https://orcid.org/0000-0003-0850-2569

Article

Publisher ID: abh3233

DOI: 10.1126/sciadv.abh3233

PMC ID: 8443178

PubMed ID: 34524843

SO-VID: 46704ded-cdfd-4abb-93ae-7dfea061f07e

Copyright © Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

License:

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.

History

Date received : 04 March 2021

Date accepted : 22 July 2021

Funding

Funded by: doi http://dx.doi.org/10.13039/100000001, National Science Foundation;

Award ID: OPP grants 0440761 and 0739693

Funded by: doi http://dx.doi.org/10.13039/501100003130, Fonds Wetenschappelijk Onderzoek;

Award ID: 1104315N

Funded by: doi http://dx.doi.org/10.13039/501100003130, Fonds Wetenschappelijk Onderzoek;

Award ID: 1104317N

Funded by: Natural Environment Research Council (UK);

Award ID: NE/K004514/1

Funded by: Natural Environment Research Council (UK);

Award ID: NE/K004514/1

Funded by: National Science Foundation (USA);

Award ID: OPP grants 0440761 and 0739693

Funded by: National Science Foundation (USA);

Award ID: OPP grants 0440761 and 0739693

Funded by: doi http://dx.doi.org/10.13039/501100003130, Fonds Wetenschappelijk Onderzoek;

Award ID: 1104315N

Funded by: doi http://dx.doi.org/10.13039/501100003130, Fonds Wetenschappelijk Onderzoek;

Award ID: 1104317N

Funded by: Belgian Science Policy Belspo Belgium projects HOLANT AMBIO CCAMBIO and SAFRED;

Funded by: Belgian Science Policy (Belspo, Belgium);

Award ID: projects HOLANT, AMBIO, CCAMBIO and SAFRED

Funded by: Belgian Science Policy (Belspo, Belgium);

Award ID: projects HOLANT, AMBIO, CCAMBIO and SAFRED

Funded by: Fulbright Belgium (Belgium, USA);

Award ID: visiting scholar postdoc grant

Funded by: Simons Foundation (USA);

Award ID: postdoc grant in Marine Microbial Ecology

Funded by: Belgian American Education Foundation (Belgium, USA);

Award ID: B.A.E.F. postdoc grant

Funded by: Belgian Science Policy (Belspo, Belgium);

Award ID: projects HOLANT, AMBIO, CCAMBIO and SAFRED

Funded by: Belgian Science Policy (Belspo, Belgium);

Award ID: projects HOLANT, AMBIO, CCAMBIO and SAFRED

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Extinction of austral diatoms in response to large-scale climate dynamics in Antarctica

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Most cited references 89

Trends, rhythms, and aberrations in global climate 65 Ma to present.

dendextend: an R package for visualizing, adjusting and comparing trees of hierarchical clustering

Beyond biogeographic patterns: processes shaping the microbial landscape.

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Cited by 5

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