Earthworms are our
ecosystem engineers
Earthworms have been described as ecosystem engineers because of the major role they play in modifying the soil ecosystem. They play a key role in modifying the physical structure of soils by creating aggregates, and creating pores which increases infiltration and drainage.
An abundant earthworm population is considered a sign of high soil quality. Through their feeding and burrowing activities, earthworms could significantly influence soil structure and physical properties (aggregate stability, erodibility, water retention and infiltration), as well as decomposition and translocation of organic matter.
The ways to manage earthworm populations may be diverse. More research is needed to estimate their importance in determining other components of soil fertility and plant growth.