1. Fill in the missing numbers in the dynamic life table below. (3) 0 100 1 60 2
ID: 257463 • Letter: 1
Question
1. Fill in the missing numbers in the dynamic life table below. (3) 0 100 1 60 2 30 0.3 0.33 0.4 0 0 0.5 0.50.6 0.1 0 0.2 2. Fill in the blanks in the dynamic life table below. (3) 0 100 0.75 0.25 1.0 0 0 1 75 0.34 0.75 3 2 50 0.3 0.5 1.5 0.66 0.34 0 10 0 0.1 0.1 3. Calculate the net reproductive rate (Ro) for the population summarized in question 1.(2) 4. Calculate the net reproductive rate (Ro) for the population summarized in question 2.(2) 5. Why can't you just sum up the b, column in a life table to get a measure of the expected lifetime reproduction for an individual newborn? (2)Explanation / Answer
1.
N lx sx mx bx lxbx
0 100 1 0.4 0 0
1 60 0.6 0.5 0.5 1 0.6
2 30 0.3 0.33 0.2 2 0.6
3 10 0.1 0 1 2 0.2
3. Ro = 1.4
2.
N lx sx mx bx lxbx
0 100 1 0.75 0.25 0 0
1 75 0.75 0.66 0.34 4 3
2 50 0.5 0.3 0.25 3 1.5
3 15 0.15 0.6 0.34 2 3
4 10 0.1 0 1 1 0.1
4. R0 = 7.6
5. The net reproductive rate is the lifetime reproductive potential of the average female, adjusted for survival. We can calculate it by multiplying the standardized survivorship of each age (lx) by its fecundity (bx), and summing these products
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