Fig. 3
From: Meta-analysis of the impact of plant invasions on soil microbial communities

Heterogeneity test of effects of allelopathic substances on bacterial diversity in three conditions: a temperate vs tropical/subtropical region, b forest and non forest ecosystems, c woody and herbaceous invasive plants. Qb variance of a response variable between different studies. Qw variability within groups. Qt variance of the cumulative effect size between different cases