Our scholarly friends head to the lake to go fishing and are unpleasantly surprised by the algae filling the water. They talk about primary and secondary succession as different ways that ecosystems are changed. Show the short video,...

Each biome has self sustaining communities, but how did these unique and stable communities form? Investigate how these evolved with changing animal interactions.

Communities are dynamic and change over time, and we can observe this process with particular clarity after a disturbance or on new land. Learn about primary and secondary succession, as well as pioneer species. [4:39]