Question 4. Monkeys will often actively search for fruit trees, feeding on the f

Question

Question 4. Monkeys will often actively search for fruit trees, feeding on the fruit within a tree until it is mostly gone and then leaving to look for another tree in which to feed. Optimal foraging theory makes predictions about which behaviors should be favored by natural selection. Consider the following figure showing cumulative energy gain per minute for monkeys feeding in different fruit trees (green lines): Tree 1 Tree 2 0 5 10 20 25 30 35 40 45 Time (T Tree 1 Tree 2 0 10 15 20 25 30 35 40 45 Time (T) C. How do the fruit trees in panel (b) above differ from each other from the perspective of a monkey? For how long should a monkey forage in each tree before leaving? Be specific. D. Given your answer to the previous question (4C), what is an alternative hypothesis about how the fruit trees in panel (b) above differ from each other from the perspective of a monkey that would also explain the observed patterns? Explain.

Explanation / Answer

A) Optimal foraging theory assumes that the pattern selected for in a species through natural selection is the most economically advantageous.

B)a)Marginal value theorem it describes the strategy which will lead to maximum gain per unit time when the recources are dcereasing with time.

So according to the perspective of a monkey, fruit tress in the panel with high number of fruits will be more productive, as compared to the tress with less number of fruits.

The monkey will forage the tree , until has a very less resources for it or the monkey finds oter tree with good numbers of fruits.

So he can give up on a tree with less fruits for a tree that has more number of fruits.

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