SLIDE A

SLIDE B

Succession Jounal Review pictures on “Slide A” and “Slide B”. Select the slide that would take the longest amount of time to develop into a mature/climax community. Explain your reasoning.

Define succession Compare & contrast primary and secondary succession

Succession Ecosystems are constantly changing. Some changes happen quickly, such as a forest fire, flood, or volcanic eruption. Some changes happen slowly over a period of time, such as new saplings growing into tall, mature trees. When an ecosystem changes, the organisms in that ecosystem may need to change to survive. Succession is the natural change that takes place within a community of an ecosystem. There are two types of succession that ecologists study.

Primary succession …is the gradual development of a new community where no organisms have lived before. An example is the changes that take place after a volcanic eruption and the lava flow cools, hardens, and weathers. Eventually, primary succession slows down and the community becomes stable. This community is known as a climax community.

Secondary succession …occurs when a natural disaster or human activity partially destroys a community. Like primary succession, the community of organisms inhabiting an area changes over time. However, when secondary succession takes place, soil is already present. In secondary succession, the species replacing the pioneer species are often different. It also takes less time to become a climax community.

Succession Activity Number your paper 1-4 Identify the type of succession for the following pictures and justify your answer

1. Identify type of succession. Justify

2. Identify type of succesion. Justify

3. Identify type of succession. Justify.

4. Identify type of succession. Justify

Key Vocabulary 1.Succession 2.Primary succession 3.Secondary succession 4.Climax community 5.Pioneer species 6.Lichens ** Label and define terms on succession flipbook**