Analysis of complex trophic networks reveals the signature of land-use intensification on soil communities in agroecosystems

Abstract Increasing evidence suggests that agricultural intensification is a threat to many groups of soil biota, but how the impacts of land-use intensity on soil organisms translate into changes in comprehensive soil interaction networks remains unclear. Here for the first time, we use environment...

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Autores principales:	Juliette M. G. Bloor, Sara Si-Moussi, Pierre Taberlet, Pascal Carrère, Mickaël Hedde
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a40f6313bc1048c68366c2b1e6bbf9e8
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spelling	oai:doaj.org-article:a40f6313bc1048c68366c2b1e6bbf9e82021-12-02T15:15:58ZAnalysis of complex trophic networks reveals the signature of land-use intensification on soil communities in agroecosystems10.1038/s41598-021-97300-92045-2322https://doaj.org/article/a40f6313bc1048c68366c2b1e6bbf9e82021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97300-9https://doaj.org/toc/2045-2322Abstract Increasing evidence suggests that agricultural intensification is a threat to many groups of soil biota, but how the impacts of land-use intensity on soil organisms translate into changes in comprehensive soil interaction networks remains unclear. Here for the first time, we use environmental DNA to examine total soil multi-trophic diversity and food web structure for temperate agroecosystems along a gradient of land-use intensity. We tested for response patterns in key properties of the soil food webs in sixteen fields ranging from arable crops to grazed permanent grasslands as part of a long-term management experiment. We found that agricultural intensification drives reductions in trophic group diversity, although taxa richness remained unchanged. Intensification generally reduced the complexity and connectance of soil interaction networks and induced consistent changes in energy pathways, but the magnitude of management-induced changes depended on the variable considered. Average path length (an indicator of food web redundancy and resilience) did not respond to our management intensity gradient. Moreover, turnover of network structure showed little response to increasing management intensity. Our data demonstrates the importance of considering different facets of trophic networks for a clearer understanding of agriculture-biodiversity relationships, with implications for nature-based solutions and sustainable agriculture.Juliette M. G. BloorSara Si-MoussiPierre TaberletPascal CarrèreMickaël HeddeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Juliette M. G. Bloor Sara Si-Moussi Pierre Taberlet Pascal Carrère Mickaël Hedde Analysis of complex trophic networks reveals the signature of land-use intensification on soil communities in agroecosystems
description	Abstract Increasing evidence suggests that agricultural intensification is a threat to many groups of soil biota, but how the impacts of land-use intensity on soil organisms translate into changes in comprehensive soil interaction networks remains unclear. Here for the first time, we use environmental DNA to examine total soil multi-trophic diversity and food web structure for temperate agroecosystems along a gradient of land-use intensity. We tested for response patterns in key properties of the soil food webs in sixteen fields ranging from arable crops to grazed permanent grasslands as part of a long-term management experiment. We found that agricultural intensification drives reductions in trophic group diversity, although taxa richness remained unchanged. Intensification generally reduced the complexity and connectance of soil interaction networks and induced consistent changes in energy pathways, but the magnitude of management-induced changes depended on the variable considered. Average path length (an indicator of food web redundancy and resilience) did not respond to our management intensity gradient. Moreover, turnover of network structure showed little response to increasing management intensity. Our data demonstrates the importance of considering different facets of trophic networks for a clearer understanding of agriculture-biodiversity relationships, with implications for nature-based solutions and sustainable agriculture.
format	article
author	Juliette M. G. Bloor Sara Si-Moussi Pierre Taberlet Pascal Carrère Mickaël Hedde
author_facet	Juliette M. G. Bloor Sara Si-Moussi Pierre Taberlet Pascal Carrère Mickaël Hedde
author_sort	Juliette M. G. Bloor
title	Analysis of complex trophic networks reveals the signature of land-use intensification on soil communities in agroecosystems
title_short	Analysis of complex trophic networks reveals the signature of land-use intensification on soil communities in agroecosystems
title_full	Analysis of complex trophic networks reveals the signature of land-use intensification on soil communities in agroecosystems
title_fullStr	Analysis of complex trophic networks reveals the signature of land-use intensification on soil communities in agroecosystems
title_full_unstemmed	Analysis of complex trophic networks reveals the signature of land-use intensification on soil communities in agroecosystems
title_sort	analysis of complex trophic networks reveals the signature of land-use intensification on soil communities in agroecosystems
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a40f6313bc1048c68366c2b1e6bbf9e8
work_keys_str_mv	AT juliettemgbloor analysisofcomplextrophicnetworksrevealsthesignatureoflanduseintensificationonsoilcommunitiesinagroecosystems AT sarasimoussi analysisofcomplextrophicnetworksrevealsthesignatureoflanduseintensificationonsoilcommunitiesinagroecosystems AT pierretaberlet analysisofcomplextrophicnetworksrevealsthesignatureoflanduseintensificationonsoilcommunitiesinagroecosystems AT pascalcarrere analysisofcomplextrophicnetworksrevealsthesignatureoflanduseintensificationonsoilcommunitiesinagroecosystems AT mickaelhedde analysisofcomplextrophicnetworksrevealsthesignatureoflanduseintensificationonsoilcommunitiesinagroecosystems
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Analysis of complex trophic networks reveals the signature of land-use intensification on soil communities in agroecosystems

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