Imagine an area containing 36 foragers and four patches having the following rel
ID: 145140 • Letter: I
Question
Imagine an area containing 36 foragers and four patches having the following relative qualities (rates of food production):
Patch quality (insects per section) Patch A: 1x Patch B: 2x Patch C: 4x Patch D: 5x
1. Assuming that these foragers are in an IFD (ideal free distrubition), how many foragers would you predict to be found in each of the four patches? Are foragers feeding at the highest quality patch feeding at a higher rate than others? (yes no)
2. Consider a 'hawk' and 'dove' situation where V=75. What would the cost of fighting need to be in order to have a population of hawks and doves eventually become 100% hawks? Show what the average payoffs for a hawk and a dove would be to confirm that the population would become 100% hawks. Would 100% hawks be an ESS (evolutionary stable strategy)? Explain.
Explanation / Answer
a) Yes.
b) for V= 75%, C=25%
For 100% Hawks, 50-60% Dove is required
For ESS Hawks population should be 1/3.