The hump-shaped effect of plant functional diversity on the biological control of a multi-species pest community

Abstract Plant taxonomic and functional diversity promotes interactions at higher trophic levels, but the contribution of functional diversity effects to multitrophic interactions and ecosystem functioning remains unclear. We investigated this relationship in a factorial field experiment comparing t...

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Autores principales:	Antoine Gardarin, Justine Pigot, Muriel Valantin-Morison
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8aadafc2142c4983bcdabac8d038bfa3
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spelling	oai:doaj.org-article:8aadafc2142c4983bcdabac8d038bfa32021-11-08T10:51:10ZThe hump-shaped effect of plant functional diversity on the biological control of a multi-species pest community10.1038/s41598-021-01160-22045-2322https://doaj.org/article/8aadafc2142c4983bcdabac8d038bfa32021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01160-2https://doaj.org/toc/2045-2322Abstract Plant taxonomic and functional diversity promotes interactions at higher trophic levels, but the contribution of functional diversity effects to multitrophic interactions and ecosystem functioning remains unclear. We investigated this relationship in a factorial field experiment comparing the effect of contrasting plant communities on parasitism rates in five herbivore species. We used a mechanistic trait-matching approach between plant and parasitoids to determine the amount of nectar available and accessible to parasitoids. This trait-matching approach best explained the rates of parasitism of each herbivorous species, confirming the predominant role of mass-ratio effects. We found evidence for an effect of functional diversity only in analyses considering the ability of plant communities to support the parasitism of all herbivores simultaneously. Multi-species parasitism was maximal at intermediate levels of functional diversity. Plant specific richness had a negligible influence relative to functional metrics. Plant communities providing large amounts of accessible nectar and with intermediate levels of functional diversity were found to be the most likely to enhance the conservation biological control of diverse crop herbivores.Antoine GardarinJustine PigotMuriel Valantin-MorisonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Antoine Gardarin Justine Pigot Muriel Valantin-Morison The hump-shaped effect of plant functional diversity on the biological control of a multi-species pest community
description	Abstract Plant taxonomic and functional diversity promotes interactions at higher trophic levels, but the contribution of functional diversity effects to multitrophic interactions and ecosystem functioning remains unclear. We investigated this relationship in a factorial field experiment comparing the effect of contrasting plant communities on parasitism rates in five herbivore species. We used a mechanistic trait-matching approach between plant and parasitoids to determine the amount of nectar available and accessible to parasitoids. This trait-matching approach best explained the rates of parasitism of each herbivorous species, confirming the predominant role of mass-ratio effects. We found evidence for an effect of functional diversity only in analyses considering the ability of plant communities to support the parasitism of all herbivores simultaneously. Multi-species parasitism was maximal at intermediate levels of functional diversity. Plant specific richness had a negligible influence relative to functional metrics. Plant communities providing large amounts of accessible nectar and with intermediate levels of functional diversity were found to be the most likely to enhance the conservation biological control of diverse crop herbivores.
format	article
author	Antoine Gardarin Justine Pigot Muriel Valantin-Morison
author_facet	Antoine Gardarin Justine Pigot Muriel Valantin-Morison
author_sort	Antoine Gardarin
title	The hump-shaped effect of plant functional diversity on the biological control of a multi-species pest community
title_short	The hump-shaped effect of plant functional diversity on the biological control of a multi-species pest community
title_full	The hump-shaped effect of plant functional diversity on the biological control of a multi-species pest community
title_fullStr	The hump-shaped effect of plant functional diversity on the biological control of a multi-species pest community
title_full_unstemmed	The hump-shaped effect of plant functional diversity on the biological control of a multi-species pest community
title_sort	hump-shaped effect of plant functional diversity on the biological control of a multi-species pest community
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/8aadafc2142c4983bcdabac8d038bfa3
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The hump-shaped effect of plant functional diversity on the biological control of a multi-species pest community

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