This suggests that over
the short duration of our experiment, Roundup led to heavier earthworms
that were less active at the surface, probably because there was
abundant food in form of dead roots or AMF in the soil that precluded
earthworms from foraging food from the surface. Other studies
showed that earthworm biomass was unaffected by glyphosatebased
herbicides for endogeic species 48, whereas in temperate epigeic
species 30,49 and tropical earthworms strong mass loss after glyphosate
application was found 50.