Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
Predatory keystone species are predators whose presence contributes significantly to maintaining the diversity and structure of an ecological community, influencing the types and numbers of various other species in their ecosystem.
Trophic Cascade: An ecological phenomenon triggered by the addition or removal of top predators and involving reciprocal changes in relative populations of predator and prey through a food chain.
Biomass Pyramid: A graphical representation that illustrates the relative amount of living organic matter available at each trophic level in an ecosystem.
Food Web: A system of interlocking and interdependent food chains.