Decomposers play a crucial role in ecosystems by breaking down organic matter and recycling nutrients. They facilitate the decomposition process, converting dead organisms and waste products into forms that can be utilized by plants and other organisms. This nutrient cycling is essential for maintaining soil fertility and supporting plant growth. Additionally, decomposers help in the regulation of carbon and nutrient cycles, influencing ecosystem productivity. By enhancing soil health and promoting nutrient availability, decomposers are integral to the functioning of various ecosystems, thereby supporting overall biodiversity and environmental health.