Community Ecology Supplemental Instruction Iowa State University Leader: Tyler Course: Bio 211 (3) Instructor: Dr. Rice Date: 1. What is a community? What does it include? 2. Define the following: Competition - Amensalism - Commensalism - Neutralism - Mutualism - Predation - 3. What is the Competitive Exclusion Principle, and how does it relate to an ecological niche? 4. What is the difference between a fundamental niche and a realized niche? 5. What is species richness? What hypotheses are used to explain differences in species richness? Which one is observed to be the most valid?