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Selective extinction against redundant species buffers functional diversity

Catalina Pimiento Orcid Logo, Christine D. Bacon, Daniele Silvestro, Austin Hendy, Carlos Jaramillo, Alexander Zizka, Xavier Meyer, Alexandre Antonelli

Proceedings of the Royal Society B: Biological Sciences, Volume: 287, Issue: 1931, Start page: 20201162

Swansea University Author: Catalina Pimiento Orcid Logo

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DOI (Published version): 10.1098/rspb.2020.1162

Abstract

The extinction of species can destabilize ecological processes. A way to assess the ecological consequences of species loss is by examining changes in functional diversity. The preservation of functional diversity depends on the range of ecological roles performed by species, or functional richness,...

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Published in: Proceedings of the Royal Society B: Biological Sciences
ISSN: 0962-8452 1471-2954
Published: The Royal Society 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa54564
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spelling 2022-12-06T15:04:21.9753606 v2 54564 2020-06-29 Selective extinction against redundant species buffers functional diversity 7dd222e2a1d5971b3f3963f0501a9d4f 0000-0002-5320-7246 Catalina Pimiento Catalina Pimiento true false 2020-06-29 SBI The extinction of species can destabilize ecological processes. A way to assess the ecological consequences of species loss is by examining changes in functional diversity. The preservation of functional diversity depends on the range of ecological roles performed by species, or functional richness, and the number of species per role, or functional redundancy. However, current knowledge is based on short timescales and an understanding of how functional diversity responds to long-term biodiversity dynamics has been limited by the availability of deep-time, trait-based data. Here, we compile an exceptional trait dataset of fossil mollusks from a 23-million-year interval in the Caribbean Sea (34,011 records, 4,422 species) and develop a novel Bayesian model of multi-trait-dependent diversification to reconstruct mollusk (1) diversity dynamics, (2) changes in functional diversity and (3) extinction selectivity over the last 23 million years. Our results identify high diversification between 23 – 5 Ma, leading to increases in both functional richness and redundancy. Conversely, over the last three million years, a period of high extinction rates resulted in the loss of 49% of species but only 3% of functional richness. Extinction rates were significantly higher in small, functionally redundant species suggesting that competition mediated the response of species to environmental change. Taken together, our results identify long-term diversification and selective extinction against redundant species that allowed functional diversity to grow over time, ultimately buffering the ecological functions of biological communities against extinction. Journal Article Proceedings of the Royal Society B: Biological Sciences 287 1931 20201162 The Royal Society 0962-8452 1471-2954 Competition, Extinction, Functional diversity, Caribbean, global change, mollusks 29 7 2020 2020-07-29 10.1098/rspb.2020.1162 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University 2022-12-06T15:04:21.9753606 2020-06-29T12:19:00.3803884 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Catalina Pimiento 0000-0002-5320-7246 1 Christine D. Bacon 2 Daniele Silvestro 3 Austin Hendy 4 Carlos Jaramillo 5 Alexander Zizka 6 Xavier Meyer 7 Alexandre Antonelli 8 54564__17930__1f729538430041bfa55a46fc52186f0e.pdf 54564.pdf 2020-08-16T13:13:59.2621115 Output 648057 application/pdf Version of Record true Released under the terms of a Creative Commons Attribution License (CC-BY). true eng http://creativecommons.org/licenses/by/4.0/
title Selective extinction against redundant species buffers functional diversity
spellingShingle Selective extinction against redundant species buffers functional diversity
Catalina Pimiento
title_short Selective extinction against redundant species buffers functional diversity
title_full Selective extinction against redundant species buffers functional diversity
title_fullStr Selective extinction against redundant species buffers functional diversity
title_full_unstemmed Selective extinction against redundant species buffers functional diversity
title_sort Selective extinction against redundant species buffers functional diversity
author_id_str_mv 7dd222e2a1d5971b3f3963f0501a9d4f
author_id_fullname_str_mv 7dd222e2a1d5971b3f3963f0501a9d4f_***_Catalina Pimiento
author Catalina Pimiento
author2 Catalina Pimiento
Christine D. Bacon
Daniele Silvestro
Austin Hendy
Carlos Jaramillo
Alexander Zizka
Xavier Meyer
Alexandre Antonelli
format Journal article
container_title Proceedings of the Royal Society B: Biological Sciences
container_volume 287
container_issue 1931
container_start_page 20201162
publishDate 2020
institution Swansea University
issn 0962-8452
1471-2954
doi_str_mv 10.1098/rspb.2020.1162
publisher The Royal Society
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
document_store_str 1
active_str 0
description The extinction of species can destabilize ecological processes. A way to assess the ecological consequences of species loss is by examining changes in functional diversity. The preservation of functional diversity depends on the range of ecological roles performed by species, or functional richness, and the number of species per role, or functional redundancy. However, current knowledge is based on short timescales and an understanding of how functional diversity responds to long-term biodiversity dynamics has been limited by the availability of deep-time, trait-based data. Here, we compile an exceptional trait dataset of fossil mollusks from a 23-million-year interval in the Caribbean Sea (34,011 records, 4,422 species) and develop a novel Bayesian model of multi-trait-dependent diversification to reconstruct mollusk (1) diversity dynamics, (2) changes in functional diversity and (3) extinction selectivity over the last 23 million years. Our results identify high diversification between 23 – 5 Ma, leading to increases in both functional richness and redundancy. Conversely, over the last three million years, a period of high extinction rates resulted in the loss of 49% of species but only 3% of functional richness. Extinction rates were significantly higher in small, functionally redundant species suggesting that competition mediated the response of species to environmental change. Taken together, our results identify long-term diversification and selective extinction against redundant species that allowed functional diversity to grow over time, ultimately buffering the ecological functions of biological communities against extinction.
published_date 2020-07-29T04:08:11Z
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score 11.012678

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