Wednesday, April 23, 2014

What if Bugs Bunny meets Big Bad Wolf?

For today's class, we did a Predator - Prey Simulation lab. Our task for this lab activity is to investigate how populations are affected by predator - prey relationships over several generations. We used wolves and rabbits as our subjects, and we used stacks of reserve cards to represent wolves (large cards) and rabbits ( small cards). For the first round, we placed three small cards evenly on the "grassland", and we tossed one wolf card on the "grassland". Each time a wolf card has to touch three rabbit cards in order to survive and reproduce. On the other hand, the number of survived rabbit cards would double up and continue reproducing. Below is our data after 20 rounds of simulation.
















As shown above, my partner and I only reached the 20th round. The number of wolves didn't grow until the 4th round (the number of wolves didn't grow drastically until the 10th round), while the number of rabbits showed a significant increase during the first seven rounds. The decrease in number of rabbits started from the 8th round, which is when we began to see the number of wolves increased quickly. The data we collected shows the number of predators is directly proportional to the number of preys at the beginning; however, it becomes more indirectly proportional as the number of preys decreases while number of predators increases. The highest amount of rabbits is 72, and the highest amount of wolves is 18.

No comments:

Post a Comment