Food webs play a crucial role in maintaining ecological balance by illustrating the complex network of interactions among various organisms within an ecosystem. They depict how energy and nutrients flow through different trophic levels, from producers to consumers and decomposers. By interlinking multiple food chains, food webs ensure stability; if one species declines, others can adapt due to interconnected relationships. This resilience helps ecosystems withstand environmental changes and disturbances, ensuring biodiversity and promoting sustainable interactions among species.