+A **keystone species** exerts an influence on its [Ecosystem](/wiki/ecosystem) far greater than its mere abundance suggests. Its pivotal role maintains the structure and health of an entire habitat, safeguarding its unique [Biodiversity](/wiki/biodiversity).
+## See also
+- [Apex Predator](/wiki/apex_predator)
+- [Trophic Cascade](/wiki/trophic_cascade)
+- [Food Web](/wiki/food_web)