Diversity effects on productivity are stronger within than between trophic groups in the arbuscular mycorrhizal symbiosis.

<h4>Background</h4>The diversity of plants and arbuscular mycorrhizal fungi (AMF) has been experimentally shown to alter plant and AMF productivity. However, little is known about how plant and AMF diversity interact to shape their respective productivity.<h4>Methodology/principal...

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Autores principales:	Alexander M Koch, Pedro M Antunes, John N Klironomos
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/61ce19a18674402098e088a9cf2d4156
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spelling	oai:doaj.org-article:61ce19a18674402098e088a9cf2d41562021-11-18T07:17:58ZDiversity effects on productivity are stronger within than between trophic groups in the arbuscular mycorrhizal symbiosis.1932-620310.1371/journal.pone.0036950https://doaj.org/article/61ce19a18674402098e088a9cf2d41562012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22629347/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>The diversity of plants and arbuscular mycorrhizal fungi (AMF) has been experimentally shown to alter plant and AMF productivity. However, little is known about how plant and AMF diversity interact to shape their respective productivity.<h4>Methodology/principal findings</h4>We co-manipulated the diversity of both AMF and plant communities in two greenhouse studies to determine whether the productivity of each trophic group is mainly influenced by plant or AMF diversity, respectively, and whether there is any interaction between plant and fungal diversity. In both experiments we compared the productivity of three different plant species monocultures, or their respective 3-species mixtures. Similarly, in both studies these plant treatments were crossed with an AMF diversity gradient that ranged from zero (non-mycorrhizal controls) to a maximum of three and five taxonomically distinct AMF taxa, respectively. We found that within both trophic groups productivity was significantly influenced by taxon identity, and increased with taxon richness. These main effects of AMF and plant diversity on their respective productivities did not depend on each other, even though we detected significant individual taxon effects across trophic groups.<h4>Conclusions/significance</h4>Our results indicate that similar ecological processes regulate diversity-productivity relationships within trophic groups. However, productivity-diversity relationships are not necessarily correlated across interacting trophic levels, leading to asymmetries and possible biotic feedbacks. Thus, biotic interactions within and across trophic groups should be considered in predictive models of community assembly.Alexander M KochPedro M AntunesJohn N KlironomosPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 5, p e36950 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Alexander M Koch Pedro M Antunes John N Klironomos Diversity effects on productivity are stronger within than between trophic groups in the arbuscular mycorrhizal symbiosis.
description	<h4>Background</h4>The diversity of plants and arbuscular mycorrhizal fungi (AMF) has been experimentally shown to alter plant and AMF productivity. However, little is known about how plant and AMF diversity interact to shape their respective productivity.<h4>Methodology/principal findings</h4>We co-manipulated the diversity of both AMF and plant communities in two greenhouse studies to determine whether the productivity of each trophic group is mainly influenced by plant or AMF diversity, respectively, and whether there is any interaction between plant and fungal diversity. In both experiments we compared the productivity of three different plant species monocultures, or their respective 3-species mixtures. Similarly, in both studies these plant treatments were crossed with an AMF diversity gradient that ranged from zero (non-mycorrhizal controls) to a maximum of three and five taxonomically distinct AMF taxa, respectively. We found that within both trophic groups productivity was significantly influenced by taxon identity, and increased with taxon richness. These main effects of AMF and plant diversity on their respective productivities did not depend on each other, even though we detected significant individual taxon effects across trophic groups.<h4>Conclusions/significance</h4>Our results indicate that similar ecological processes regulate diversity-productivity relationships within trophic groups. However, productivity-diversity relationships are not necessarily correlated across interacting trophic levels, leading to asymmetries and possible biotic feedbacks. Thus, biotic interactions within and across trophic groups should be considered in predictive models of community assembly.
format	article
author	Alexander M Koch Pedro M Antunes John N Klironomos
author_facet	Alexander M Koch Pedro M Antunes John N Klironomos
author_sort	Alexander M Koch
title	Diversity effects on productivity are stronger within than between trophic groups in the arbuscular mycorrhizal symbiosis.
title_short	Diversity effects on productivity are stronger within than between trophic groups in the arbuscular mycorrhizal symbiosis.
title_full	Diversity effects on productivity are stronger within than between trophic groups in the arbuscular mycorrhizal symbiosis.
title_fullStr	Diversity effects on productivity are stronger within than between trophic groups in the arbuscular mycorrhizal symbiosis.
title_full_unstemmed	Diversity effects on productivity are stronger within than between trophic groups in the arbuscular mycorrhizal symbiosis.
title_sort	diversity effects on productivity are stronger within than between trophic groups in the arbuscular mycorrhizal symbiosis.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/61ce19a18674402098e088a9cf2d4156
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Diversity effects on productivity are stronger within than between trophic groups in the arbuscular mycorrhizal symbiosis.

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