Earthworms and Their Associated Microorganisms in Recycling of Organic Wastes for Sustainable Development

Abstract

Earthworms are well known as ecosystem engineers as they are essential to ecosystem functions. In vermicomposting, earthworms process organic waste into a uniform, humus-like substance recognized as vermicompost. The decomposition rate of organic wastes during vermicomposting and consequently the quality of the finished product are primarily influenced by the effects that earthworms have on microorganisms. The substance’s passage through the earthworm’s gut supports the presence of a smaller but more vigorous microbial community in the material that is being ingested. This chapter will emphasize how the earthworm gut is crucial in shaping the microbial population. An overview of the key modifications to microbial community structure and activity seen during vermicomposting is also provided.