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Evolution of diversity in metabolic strategies

Understanding the origin and maintenance of biodiversity is a fundamental problem. Many theoretical approaches have been investigating ecological interactions, such as competition, as potential drivers of diversification. Classical consumer-resource models predict that the number of coexisting speci...

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Detalles Bibliográficos
Autores principales: Caetano, Rodrigo, Ispolatov, Yaroslav, Doebeli, Michael
Formato: Online Artículo Texto
Lenguaje:English
Publicado: eLife Sciences Publications, Ltd 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8428844/
https://www.ncbi.nlm.nih.gov/pubmed/34350825
http://dx.doi.org/10.7554/eLife.67764
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author Caetano, Rodrigo
Ispolatov, Yaroslav
Doebeli, Michael
author_facet Caetano, Rodrigo
Ispolatov, Yaroslav
Doebeli, Michael
author_sort Caetano, Rodrigo
collection PubMed
description Understanding the origin and maintenance of biodiversity is a fundamental problem. Many theoretical approaches have been investigating ecological interactions, such as competition, as potential drivers of diversification. Classical consumer-resource models predict that the number of coexisting species should not exceed the number of distinct resources, a phenomenon known as the competitive exclusion principle. It has recently been argued that including physiological tradeoffs in consumer-resource models can lead to violations of this principle and to ecological coexistence of very high numbers of species. Here, we show that these results crucially depend on the functional form of the tradeoff. We investigate the evolutionary dynamics of resource use constrained by tradeoffs and show that if the tradeoffs are non-linear, the system either does not diversify or diversifies into a number of coexisting species that do not exceed the number of resources. In particular, very high diversity can only be observed for linear tradeoffs.
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spelling pubmed-84288442021-09-13 Evolution of diversity in metabolic strategies Caetano, Rodrigo Ispolatov, Yaroslav Doebeli, Michael eLife Evolutionary Biology Understanding the origin and maintenance of biodiversity is a fundamental problem. Many theoretical approaches have been investigating ecological interactions, such as competition, as potential drivers of diversification. Classical consumer-resource models predict that the number of coexisting species should not exceed the number of distinct resources, a phenomenon known as the competitive exclusion principle. It has recently been argued that including physiological tradeoffs in consumer-resource models can lead to violations of this principle and to ecological coexistence of very high numbers of species. Here, we show that these results crucially depend on the functional form of the tradeoff. We investigate the evolutionary dynamics of resource use constrained by tradeoffs and show that if the tradeoffs are non-linear, the system either does not diversify or diversifies into a number of coexisting species that do not exceed the number of resources. In particular, very high diversity can only be observed for linear tradeoffs. eLife Sciences Publications, Ltd 2021-08-05 /pmc/articles/PMC8428844/ /pubmed/34350825 http://dx.doi.org/10.7554/eLife.67764 Text en © 2021, Caetano et al https://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited.
spellingShingle Evolutionary Biology
Caetano, Rodrigo
Ispolatov, Yaroslav
Doebeli, Michael
Evolution of diversity in metabolic strategies
title Evolution of diversity in metabolic strategies
title_full Evolution of diversity in metabolic strategies
title_fullStr Evolution of diversity in metabolic strategies
title_full_unstemmed Evolution of diversity in metabolic strategies
title_short Evolution of diversity in metabolic strategies
title_sort evolution of diversity in metabolic strategies
topic Evolutionary Biology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8428844/
https://www.ncbi.nlm.nih.gov/pubmed/34350825
http://dx.doi.org/10.7554/eLife.67764
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