What role do decomposers play in an ecosystem?

Decomposers play a crucial role in an ecosystem by breaking down dead organic material. This process is essential for nutrient cycling, as decomposers, which include bacteria, fungi, and certain insects, feed on the remains of dead plants and animals. As they decompose this organic matter, they break it down into simpler substances, releasing nutrients back into the soil. This not only helps to enrich the soil but also makes these nutrients available for primary producers, such as plants, to use in their growth. Thus, decomposers are fundamental to maintaining the balance of ecosystems by ensuring the continuous flow of energy and matter. Their activity is a key component of ecological health and sustainability.