Drift and Selection Chapter 23 Question 14 - Case Study 9 of 9 Are toucans impor

Question

Drift and Selection Chapter 23 Question 14 - Case Study 9 of 9 Are toucans important to tropical forests? Human activities are causing the fragmentation of the Brazilian Atlantic rain forest. One consequence is that toucans have become extinct or nearly extinct in some of the forest fragments. Does the absence of toucans affect the forest? Part A Large seeds cary more resources than small seeds and tend to have a higher rate of survival, especially after being dispersed by a bird. Predict how the local extinction of toucans will affect the palm population over time Drag the terms on the left to the appropriate blanks on the right to complete the sentences Reset Help a higher pal m seeds have higher If fitness than presence of toucans), then the fitness of palms will not palm seeds (in the will WI over time in the absence of stay constant toucans because the large seeds smaller be dispersed and will have increase chance of survival decrease larger a lower the same

Explanation / Answer

If larger palm seeds have higher fitness than smaller palm seeds, then the fitness of palm decrease over time in the absence of toucans because the large seeds will not be dispersed and will have lower chance of survival.

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