Mated pairs of bugs remain joined together long after sperm transfer, but they must separate so that the female can lay the eggs. Mated pairs stay joined well beyond sperm transfer. Do you see evidence of competition for females?
6. How many generations of soapberry bugs could there be each year ?
7. Why might you expect to see a difference in beak length between males and females ?
8. Given the radius of a balloon vine seed capsule and fitness of bugs with different lenghts under natural selection, what beak length would be ideal for feeding on balloon vine fruits?
9. In a natural population of bugs living on balloon vine in Baton Rouge Louisiana, female beak length ranged from 6.5 to 9.5 mm with a mean at 8 mm. How well does this distribution fit your expectation?
10. What fraction of available fruits could the bugs consume? (Remember that the mean is the average size; sometimes the mode, the most frequent type, is the same as the mean.)
11. Would having a beak much longer than the largest diameter be more effective than having a beak equivalent to the average capsule diameter? Yes or No.Explain. (Before you answer this question, look at how the beak is carried on the body when the bug walks and where the beak must be positioned to feed. Imagine moving the beak into the feeding position and inserting it into a seed.)
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