Scenario #1

Beavers

nesting sites for birds

increased fishpopulation

increased waterfowlPopulation

Wetland Ecosystem

1. How does dam building increase fish population?

2. What effect does the increase in fish populations have on the pond?

3.What is the overall effect of damming?

Scenario #2

1. Describe what happened to the area around the dead whale after one year.

2. How would an ecosystem be affected if decomposers were removed?

Scenario #3

1. Match the following levels with the diagram.

2. Identify at least 3 abiotic factors and 3 biotic factors

Scenario #4

1. Which organisms are primary consumers?

2. Which organisms are tertiary consumers?

3. Which organism, if removed would impact the food web the most?

Scenario #5

1.What is this picture showing?

2.What might this picture looked like in the past (biotic or abiotic factors would be present?)

3.What are some ecological consequences of the change that occurred?

Scenario #6

1.What are the two diagrams showing?

2.How does energy move along the pyramid

3.Where does energy go when it leaves the pyramid?