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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...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
eLife Sciences Publications, Ltd
2021
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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. |
format | Online Article Text |
id | pubmed-8428844 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | eLife Sciences Publications, Ltd |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT caetanorodrigo evolutionofdiversityinmetabolicstrategies AT ispolatovyaroslav evolutionofdiversityinmetabolicstrategies AT doebelimichael evolutionofdiversityinmetabolicstrategies |