6. You collect data on birth and mortality in three populations of grasshoppers,

Question

6. You collect data on birth and mortality in three populations of grasshoppers, and you calculate the following birth and death rates for these populations. Both populations are experiencing exponential growth:

b d
Population A 0.90 0.80
Population B 0.45 0.35
Population C 0.15 0.05


Indicate if the following statements true or false (circle your answer) and briefly justify your answer?

a. Population A is growing at the fastest rate. True False

b. Population C has the lowest death rate. True False

c. Population C is growing at the slowest rate. True False

d. All populations are growing at the same rate. True False

Explanation / Answer

For a, c, & d, use the this formula for total growth rate GR=BR-MR The growth rate for all three populations is 0.10, so: A) false C) false D) true For B, just compare the 3 mortality rates. The smallest number is the lowest death rate. Because 0.05

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