What essential role do decomposers play in an ecosystem?

Decomposers play a crucial role in ecosystems by recycling nutrients back into the soil. They break down dead organic material, such as fallen leaves, dead animals, and other types of waste. This process returns essential nutrients like nitrogen, phosphorus, and potassium to the soil, making them available for use by primary producers, such as plants. Without decomposers, ecosystems would accumulate organic waste, and essential nutrients would be locked away, leading to reduced soil fertility and overall ecosystem health. This nutrient cycling is vital for maintaining the balance and productivity of ecosystems, supporting plant growth and, consequently, the entire food web.