Eco Beaker Lab 1 Essay

1573 Words May 8th, 2013 7 Pages
Exercise 1: The Moose Arrive

In exercise one we simulated the arrival of a small group of moose that swam to Isle Royal. The simulation ran over time so that the moose can form a large population on the island. We studied this population of moose before the wolves’ arrival. The simulation ran for 50 years. After the 50 years simulation was complete the data was collected and analyzed.

Answers to Questions:

5.1
ANS: The approximate size of the moose population is 600.

5.2
ANS: The Approximate maximum population size the moose obtained was 930.

5.3
ANS: Simulated Graph: [pic]

5.4
ANS: The exponential growth is approximately from 0 years to 20 years circles in pink.

5.5
ANS: The moose population grew fastest
…show more content…
Now the population of moose was dying and reproducing at a constant rate while its food source also remains at a constant rate.

7.4
ANS: The addition of 200 moose is predicted to have a graph as such:
[pic]
9.1
ANS: My prediction was correct.

9.2
ANS: It is still 600 because the food source is still growing at the same rate.

Exercise 2: The Wolves Arrives

Exercise two is the study of the arrival of a small pack of wolves to Isle Royal after a frozen portion of lake superior allowed them to cross from Canada. Like in Exercise one, a simulation is done again with the moose alone and then after 50 years 20-40 wolves were added. After the wolves were added the simulation was run again for another 200 years and the data was collected and analyzed.

4.1
ANS:
[pic][pic]

4.2
ANS: The introduction of the wolves caused the moose population to decrease. The moose population dropped to approximately 150 when the wolves are present.

4.3
ANS: By looking at the graph from 4.1 there is a pattern of existence between the population of moose and wolves where both the moose and wolves population fluctuates constantly. When the moose was abundant their food source was low. When the wolves came they lowered the moose population in turn raising

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