@article{fdi:010095824, title = {{A} safari across {F}rance : soil fauna insights from a nationwide soil quality monitoring program}, author = {{P}ouzenc, {S}. and {J}olivet, {C}. and {A}braham, {L}. and {A}uclerc, {A}. and {B}eaucher, {E}. and {B}ispo, {A}. and {B}ougon, {N}. and {B}rand, {M}. and {C}arteaux, {L}. and {C}hauvin, {C}. and {C}luzeau, {D}. and {C}ortet, {J}. and {D}avid, {J}. {F}. and {D}elourme, {L}. and {G}elis, {T}. and {G}uillocheau, {S}. and {I}mbert, {C}. and {L}{\'e}v{\^e}que, {A}. and {M}agne, {G}. and {H}enon, {N}. and {N}o{\¨e}l, {F}. and {P}{\'e}r{\`e}s, {G}. and {P}eron, {M}. and {P}runot, {S}. and {R}eisdorf, {P}. and {R}ose, {O}. and {R}oucaute, {M}. and {V}ersavel, {C}yril and {V}illenave, {C}. and {V}incent, {Q}. and {H}edde, {M}.}, editor = {}, language = {{ENG}}, abstract = {{S}oil biodiversity is fundamental to ecosystem functioning but remains underrepresented in conservation policies and large-scale monitoring. {H}ere, we present {RMQS}-{B}iodiversity, a nationwide soil biodiversity survey integrated into the {F}rench {S}oil {Q}uality {M}onitoring {N}etwork ({RMQS}), and illustrate its potential for soil ecology research. {I}n this pioneer study, we examine three major ecological aspects: (i) how systematic grid-based sampling captures micro-food web patterns using nematode communities, (ii) the spatial turnover of detritivore communities ({C}ollembola, {I}sopoda, {D}iplopoda) in response to environmental and geographic gradients, and (iii) the influence of macroecological drivers on predator ({C}arabidae) morphological traits. {A}cross 69 sites, we identified a few widespread species coexisting with numerous rare taxa, underscoring the value of large-scale surveys for detecting cryptic biodiversity. {N}ematode indicators revealed high variability in food web structure across land uses, with increased facultative phytophagous nematodes in forests. {I}sopods and diplopods were strongly structured by dispersal constraints, while springtails exhibited weaker environmental responses, likely due to their higher dispersal capacity. {A}dditionally, sexual size dimorphism in {C}arabidae varied by habitat, with female-biased dimorphism in closed habitats but no dimorphism in open environments, highlighting habitat stability's role in shaping morphological traits. {T}his study demonstrates the value of multi-taxon, multi-trophic biodiversity assessments in long-term soil monitoring. {RMQS}-{B}iodiversity provides a robust framework for soil biodiversity monitoring and conservation, refining bioindicators of soil quality and informing policies such as the {EU} {S}oil {M}onitoring {L}aw.}, keywords = {{S}oil biodiversity monitoring ; {M}acroecology ; {S}oil invertebrates ; {B}ioindicators ; {RMQS} ; {FRANCE}}, booktitle = {}, journal = {{A}pplied {S}oil {E}cology}, volume = {217}, numero = {}, pages = {106609 [12 p.]}, ISSN = {0929-1393}, year = {2026}, DOI = {10.1016/j.apsoil.2025.106609}, URL = {https://www.documentation.ird.fr/hor/fdi:010095824}, }