Conclusion
The patterns of soil fauna species turnover increased significantly with
increasing latitude and environment differences in East Asia. Our
results supported the hypothesis that the effect of environmental
processes was more important than the effect of neutral processes on
species turnover of soil faunas. However, the mechanisms underlying such
patterns of species turnover may differ among phytophage and predacity
faunas. Environmental processes explained more variation for turnover of
both phytophage and predacity species. Climatic factors in environmental
processes explained more variation for turnover of phytophage faunas,
and soil and environment factors explained the variation equally for the
turnover of predacity soil faunas on a large scale. Therefore,
phytophage and predacity species with different functional traits and
trophic levels should receive different protection strategies in
maintaining and promoting soil biodiversity and ecosystem services on a
large scale.