Fig. 7
Structural equation models (SEMs) show the potential pathways by which elevation changes may affect the soil fauna-driven litter remaining C (a) and N (b). The C and N remaining model (AIC 62.65) with Fisher's C = 4.65, P value = 0.59, d.f. = 6. Numbers along the arrows are standardized path coefficients. The variance explained (R2) is shown in each panel. Solid red arrows represent significant positive relationships and blue arrows represent significant negative relationships. *P < 0.05; **P < 0.01; ***P < 0.001. Dashed arrows represent non-significant relationships