Preview - Wolf Vs. Sheep

1st Run

Make sure the "grass?" option is unchecked. When you are ready to run the simulation, click ‘Go’ to start. NOTE: If at anytime you hit ‘Go’ again, this will pause the simulation.  After pausing, hitting ‘Setup’ will clear your simulation and return your initial settings.

Pay attention the increasing number of ‘ticks’.

Let the simulation run for at least 300 ticks and observe the interactions of the wolf and sheep over that time. If either of the animals die off click "go" to pause the simulation.

Questions

Please answer the questions below.

When the lines on the graph intersect the first time, how many sheep are present? You can hover your cursor over the lines on the graph to get exact numbers.

Which of the populations increase first? Explain why you think this might be the case.

Looking at the graph, do the peaks (highest point) of the animal populations overlap? If not describe what you see.

Would you describe this as being a stable or unstable ecosystem? Explain

Notes

These notes will appear on every page in this lesson so feel free to put anything here you'd like to keep track of.