Experiment: Click Reset. Try making other changes to the ecosystem. Use the + or – buttons, or choose Diseased from the dropdown lists. Click Play and observe for at least 12 months. Record what happens below.



Summarize: Give at least one example of each of the following:

A major disturbance that the ecosystem was able to recover completely from.

A major disturbance that caused the ecosystem to collapse entirely, was when the snakes and the grass became diseased.

A major disturbance that caused the ecosystem to stabilize at a new equilibrium.

When there was an increase in the snakes and hawks.

A major disturbance that caused the ecosystem to completely collapse.

Having a population of grass that is diseased.

A major disturbance that almost caused a total collapse, but that the ecosystem was able to recover from eventually.