The term for the inherent variability in ecological systems is ecological variability. This concept refers to the natural fluctuations in environmental conditions, species populations, and interactions within ecosystems. Different factors, such as climate, seasonal changes, and anthropogenic influences, can cause these variations, which affect the stability and resilience of ecosystems. Understanding ecological variability is essential for effective conservation and management strategies, as it highlights the need for adaptability in ecological responses and the importance of maintaining diverse habitats to support dynamic ecosystems.