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Article Dans Une Revue Soil Biology and Biochemistry Année : 2024

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

Tamara Münkemüller
Amélie Saillard
Nicolas Le Guillarme
Ludovic Gielly
Wilfried Thuiller

Résumé

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.
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Dates et versions

hal-04409236 , version 1 (24-01-2024)

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Paternité

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Irene Calderón-Sanou, Marc Ohlmann, Tamara Münkemüller, Lucie Zinger, Mickael Hedde, et al.. Mountain soil multitrophic networks shaped by the interplay between habitat and pedoclimatic conditions. Soil Biology and Biochemistry, 2024, 190, pp.109282. ⟨10.1016/j.soilbio.2023.109282⟩. ⟨hal-04409236⟩
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