Ecological succession, lichens, pioneer species, and primary/secondary succession are likely topics for an end of year exam. This activity is designed to have students analyze and review factors responsible for changes in biological succession.
Activity: Students receive a handout on biological succession. They cut around the outsides of a picture and construct a 3D pyramid that reviews biological succession. They watch a 3 minute video on lichens. With their information they complete three questions about biological succession.
Extend the learning by asking students to explain the different species that begin renewal of an ecosystem after a major disruption occurs. Also, ask students to refer to the diagram in the ecological succession triangle. Can they explain what is happening over time? Ask where primary succession would start on the diagram (I) vs. secondary succession (III-VII). Have them justify their responses.