What is a keystone species, and why do they matter?

They are the lynchpin of ecosystems – species that maintain balance and support biodiversity – without which the food web is transformed or could even collapse.

Grand Strategy Annex — Keystone Species in Intelligence-Rich Biospheres

Keystone Species: What Are They and Why Do They Matter?

Keystone Species: Definition, types and significance

Why Endangered Species Matter

What are keystone species and why are they important? - National Environmental Treasure

Exploring Trophic Cascades

Keystone species, facts and photos

What is a keystone species? Sawgrass Nature Center & Wildlife Hospital

Keystone Species - Definition, Examples, Importance