The influence exerted on the population composition of microorganisms comes from the ability of earthworms to influence soil structure, pH, nutrient availability and organic matter. Photo: benketaro Attribution 2.0 Generic (CC BY 2.0)

Earthworms are changing Canadian forests

Invasive species of earthworm affect microbial composition by altering overall soil conditions, Canadian research explains. Influencing nutrient and carbon cycling

Re Soil Foundation