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Biodiversity and multifunctionality in a microbial community: a novel theoretical approach to quantify functional redundancy

Ecosystems have a limited buffering capacity of multiple ecosystem functions against biodiversity loss (i.e. low multifunctional redundancy). We developed a novel theoretical approach to evaluate multifunctional redundancy in a microbial community using the microbial genome database (MBGD) for compa...

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Detalles Bibliográficos
Autores principales: Miki, Takeshi, Yokokawa, Taichi, Matsui, Kazuaki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3871314/
https://www.ncbi.nlm.nih.gov/pubmed/24352945
http://dx.doi.org/10.1098/rspb.2013.2498
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author Miki, Takeshi
Yokokawa, Taichi
Matsui, Kazuaki
author_facet Miki, Takeshi
Yokokawa, Taichi
Matsui, Kazuaki
author_sort Miki, Takeshi
collection PubMed
description Ecosystems have a limited buffering capacity of multiple ecosystem functions against biodiversity loss (i.e. low multifunctional redundancy). We developed a novel theoretical approach to evaluate multifunctional redundancy in a microbial community using the microbial genome database (MBGD) for comparative analysis. In order to fully implement functional information, we defined orthologue richness in a community, each of which is a functionally conservative evolutionary unit in genomes, as an index of community multifunctionality (MF). We constructed a graph of expected orthologue richness in a community (MF) as a function of species richness (SR), fit the power function to SR (i.e. MF = cSR(a)), and interpreted the higher exponent a as the lower multifunctional redundancy. Through a microcosm experiment, we confirmed that MF defined by orthologue richness could predict the actual multiple functions. We simulated random and non-random community assemblages using full genomic data of 478 prokaryotic species in the MBGD, and determined that the exponent in microbial communities ranged from 0.55 to 0.75. This exponent range provided a quantitative estimate that a 6.6–8.9% loss limit in SR occurred in a microbial community for an MF reduction no greater than 5%, suggesting a non-negligible initial loss effect of microbial diversity on MF.
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spelling pubmed-38713142014-02-07 Biodiversity and multifunctionality in a microbial community: a novel theoretical approach to quantify functional redundancy Miki, Takeshi Yokokawa, Taichi Matsui, Kazuaki Proc Biol Sci Research Articles Ecosystems have a limited buffering capacity of multiple ecosystem functions against biodiversity loss (i.e. low multifunctional redundancy). We developed a novel theoretical approach to evaluate multifunctional redundancy in a microbial community using the microbial genome database (MBGD) for comparative analysis. In order to fully implement functional information, we defined orthologue richness in a community, each of which is a functionally conservative evolutionary unit in genomes, as an index of community multifunctionality (MF). We constructed a graph of expected orthologue richness in a community (MF) as a function of species richness (SR), fit the power function to SR (i.e. MF = cSR(a)), and interpreted the higher exponent a as the lower multifunctional redundancy. Through a microcosm experiment, we confirmed that MF defined by orthologue richness could predict the actual multiple functions. We simulated random and non-random community assemblages using full genomic data of 478 prokaryotic species in the MBGD, and determined that the exponent in microbial communities ranged from 0.55 to 0.75. This exponent range provided a quantitative estimate that a 6.6–8.9% loss limit in SR occurred in a microbial community for an MF reduction no greater than 5%, suggesting a non-negligible initial loss effect of microbial diversity on MF. The Royal Society 2014-02-07 /pmc/articles/PMC3871314/ /pubmed/24352945 http://dx.doi.org/10.1098/rspb.2013.2498 Text en http://creativecommons.org/licenses/by/3.0/ © 2013 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/, which permits unrestricted use, provided the original author and source are credited.
spellingShingle Research Articles
Miki, Takeshi
Yokokawa, Taichi
Matsui, Kazuaki
Biodiversity and multifunctionality in a microbial community: a novel theoretical approach to quantify functional redundancy
title Biodiversity and multifunctionality in a microbial community: a novel theoretical approach to quantify functional redundancy
title_full Biodiversity and multifunctionality in a microbial community: a novel theoretical approach to quantify functional redundancy
title_fullStr Biodiversity and multifunctionality in a microbial community: a novel theoretical approach to quantify functional redundancy
title_full_unstemmed Biodiversity and multifunctionality in a microbial community: a novel theoretical approach to quantify functional redundancy
title_short Biodiversity and multifunctionality in a microbial community: a novel theoretical approach to quantify functional redundancy
title_sort biodiversity and multifunctionality in a microbial community: a novel theoretical approach to quantify functional redundancy
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3871314/
https://www.ncbi.nlm.nih.gov/pubmed/24352945
http://dx.doi.org/10.1098/rspb.2013.2498
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