Calculate the anticipated size of the rotifer population in figure 37.6 after 21 days. Explain your answer.

Figure 37.6

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Time Total Population at End of Day Day 20: G= 0.22/day x 4390 individuals = 966 individuals/day (days) G = rN 1 0.22 100 22 122 0.22 122 27 149 0.22 149 33 182 7000 4 0.22 182 40 222 0.22 222 49 271 6000 - 6 0.22 271 60 331 Day 15: G= 0.22/day x 1624 individuals = 357 individuals/day 0.22 331 73 404 8 0.22 404 89 493 5000 0.22 493 108 601 10 0.22 601 132 733 11 0.22 733 161 894 4000- 12 0.22 894 197 1091 13 0.22 1091 240 1331 3000 - 14 0.22 1331 293 1624 15 0.22 1624 357 1981 Day 5: G= 0.22/day x 16 0.22 1981 436 2417 2000- 17 0.22 2417 532 2949 222 individuals = 18 0.22 2949 649 3598 49 individuals/day 19 0.22 3598 792 4390 1000 - 20 0.22 4390 966 5356 .... = Per capita rate of increase N= Number of individuals at start of time interval 2 4 6 8 10 12 14 16 18 20 G= Growth rate (number of individuals added per unit time) Time (days) Total rotifer population