What is the carrying capacity for moose in the simulation model of Isle Royale, prior to any changes in the weather?
Suppose the rate of plant growth on Isle Royale supported an equilibrium moose population of 300 moose. In this scenario, there are no wolves present, and the environment is stable. One day, 200 additional moose arrive on the island. What would you predict the moose population to be 30 years later?
How does the average fat stores for moose when there are no wolves on Isle Royale compare to average fat stores when there are many wolves?
Average fat stores tends to be lower when there are no wolves.
Average fat stores tends to be higher when there are no wolves.
Average fat stores is not related to wolf presence.
Average fat stores depends on how many wolves were initially introduced.
Which of the following is the best explanation for why extinctions are more likely with longer growing seasons in this simulation of Isle Royale?
With more plants available...
moose are healthier on average and can avoid wolves, leading to extinction of the wolves.
larger populations of moose and wolves are more vulnerable to environmental fluctuations, increasing the chance of extinction.
there is not enough room for moose to move around the island looking for food, leading to extinction of the moose and then the wolves.
moose and then wolf populations grow larger during cycle peaks—with enough wolves, all moose are eaten, leading to extinction for both.
Quick Reply
