Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
An ecosystem cascade refers to a series of events that occur within an ecosystem when one change triggers a chain reaction affecting multiple other components. These cascades can have significant impacts on the structure and function of ecosystems.
A type of ecosystem cascade that occurs when changes in top predator populations affect lower trophic levels, leading to indirect effects throughout the food web.
Disturbance Event: A sudden event such as fire, flood, or human activity that disrupts an ecosystem and can trigger cascading effects on various ecological processes.
A process where changes in one component of an ecosystem cause further changes that either amplify (positive feedback) or dampen (negative feedback) the initial change.