What is the role of organisms classified as autotrophs in an ecosystem?

Organisms classified as autotrophs play a critical role in ecosystems as they have the ability to produce their own food through processes like photosynthesis or chemosynthesis. This capability enables them to convert inorganic substances into organic matter, which serves as a primary energy source for themselves and other organisms in the ecosystem. Autotrophs form the foundation of food chains, supplying energy and nutrients to heterotrophs, which cannot produce their own food and must rely on consuming autotrophs or other heterotrophs for sustenance. By synthesizing organic materials, autotrophs contribute to the cycling of matter and energy in ecosystems, supporting biodiversity and maintaining ecological balance.