Bring ecology to life with this creative, standards-aligned Keystone Species & Trophic Cascades Model Project. The perfect summative assessment for your ecology unit! Students deepen their understanding of ecosystem interactions by analyzing how a single species can shape an entire biome. In this research-based, hands-on project, students choose one of three ecologically significant species and investigate its impact on ecosystem stability: 🐺 Gray Wolves – Yellowstone National Park🐠 Parrot