Fig. 1: Overview of studies on soil fauna.
From: Conceptualizing soil fauna effects on labile and stabilized soil organic matter
a Studies by process (translocation, transformation, grazing; n = 180) and b investigated fraction (POM, MAOM, aggregates; n = 87) based on our literature search; % values in a indicate the proportion of studies (research articles) dedicated to translocation, transformation, and/or grazing independent of taxon, respectively. Percentage values in b to the right indicate the proportion of studies that investigated POM, MAOM, and aggregates independent of taxon, respectively, while % values within the alluvial graph indicate the proportion of studies on earthworms relative to the whole number of studies. Aggregates are grayed out because they were not in the focus of our review (consisting of both POM and MAOM).
