The ecological concept that refers to the interdependence of organisms in an environment is called ecosystem dynamics. This concept encompasses various interactions, including predation, competition, and mutualism, shaping community structure and function. Each organism fulfills a role, contributing to nutrient cycling and energy flow within the ecosystem. Understanding these interrelationships helps ecologists formulate strategies for conservation and management. Moreover, recognizing how species rely on one another is crucial for predicting how changes in one population might impact the wider ecological network.