Mountain soil multitrophic networks shaped by the interplay between habitat and pedoclimatic conditions

Our knowledge of the factors influencing the distribution of soil organisms is limited to specific taxonomic groups. Consequently, our understanding of the drivers shaping the entire soil multitrophic network is constrained. To address this gap, we conducted an extensive soil biodiversity monitoring...

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Bibliographic Details
Published in:Soil biology & biochemistry 2024-03, Vol.190, p.109282, Article 109282
Main Authors: Calderón-Sanou, Irene, Ohlmann, Marc, Münkemüller, Tamara, Zinger, Lucie, Hedde, Mickael, Lionnet, Clément, Martinez-Almoyna, Camille, Saillard, Amélie, Renaud, Julien, Le Guillarme, Nicolas, Gielly, Ludovic, Consortium, Orchamp, Thuiller, Wilfried
Format: Article
Language:English
Subjects:
Biodiversity and Ecology
Ecological filters
Environmental DNA metabarcoding
Environmental Sciences
Life Sciences
Metaweb
Network dissimilarity
Soil biodiversity
Trophic interactions
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Summary:Our knowledge of the factors influencing the distribution of soil organisms is limited to specific taxonomic groups. Consequently, our understanding of the drivers shaping the entire soil multitrophic network is constrained. To address this gap, we conducted an extensive soil biodiversity monitoring program in the French Alps, using environmental DNA to obtain multi-taxon data from 418 soil samples. The spatial structure of resulting soil multitrophic networks varied significantly between and within habitats. From forests to grasslands, we observed a shift in the abundance of trophic groups from fungal to bacterial feeding channels, reflecting different ecosystem functioning. Furthermore, forest soil networks were more strongly spatially structured which could only partly be explained by abiotic conditions. Grassland soil networks were more strongly driven by plant community composition and soil characteristics. Our findings provide valuable insights into how climate and land-use changes may differentially affect soil multitrophic networks in mountains. •Soil multitrophic network composition differ between forests and grasslands.•Forest networks have more ectomycorrhiza, macro-detritivores, predators and zooparasites.•Grassland networks have more phytoparasites, decomposers, bacterivores and omnivores.•Null models show co-variation in relative abundance among interacting groups.•Space and environment shape forest networks; plants and environment shape grassland networks.
ISSN:0038-0717
1879-3428
DOI:10.1016/j.soilbio.2023.109282