Discussion
Our study employed high-resolution data spanning contrasted habitats and extensive environmental gradients to quantify the variability of soil food web structure. This approach revealed new insights into how the environment, space and biotic interactions shape soil food web assembly. We observed significant differences in dominant trophic groups between habitats, that was associated with the structure of the trophic links in the food web (i.e., the abundance of trophically linked groups co-vary across habitats). Furthermore, we uncovered notable discrepancies in the relative importance of the ecological filters between forests and grasslands.