What is the average degree of relatedness

Reference no: EM133418198

Question: Researchers found that in the Florida Scrub Jay, mated pairs with a helper produced twice as many offspring as mated pairs without a helper. It was also found that of 74 nests with helpers, the helpers related to the mated pair in the following ways:

No. nests Relationship of mated pair to helper

48 mother and father

16 father and stepmother

2 mother and stepfather

7 brother and unrelated mate

1 unrelated

With this information, answer the following questions (10 points).

a. What is the average degree of relatedness (r) between the helpers and the individuals they assisted?

b. What is the magnitude of the benefit of altruism (B) in this species?

c. According to Hamilton's rule, what is the maximum cost of altruism (C) in this species that is consistent with the evolution of altruism by kin selection?

Reference no: EM133418198

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