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.