What would happen if a decomposers were absent from a forest ecosystem?

If decomposers were absent from a forest ecosystem, organic matter such as dead plants and animals would accumulate, leading to a buildup of waste and a decline in nutrient cycling. This would disrupt soil health, as essential nutrients would remain locked in dead material, preventing plants from accessing them. Over time, the ecosystem could become less productive, negatively impacting herbivores and, consequently, the entire food web. Ultimately, the absence of decomposers would threaten the balance and sustainability of the forest ecosystem.