Refer to the logistic model of population growth shown in figure 37.8. What would be the growth rate (G) of the population if the population size (N) equaled the carrying capacity (K)? Explain your answer.

Figure 37.8

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2500 Total Populatlon at End of Day K= carrying capacity = 2000 2000 Day N G= 1500 Day 26: (-93% of carrying capacity): G= 30 individuals/day 0.22 100 2000 0.950 21 121 6 0.22 253 2000 0.874 49 301 1000 11 0.22 577 2000 0.711 90 668 Day 16: (-50% of carrying capacity): G= 109 individuals/day 16 0.22 1087 2000 0.456 109 1197 500 21 0.22 1578 2000 0.211 73 1651 26 0.22 1851 2000 0.075 30 1881 31 0.22 1954 2000 0.023 10 1964 10 15 20 25 30 35 40 45 36 0.22 1986 2000 0.007 3 1989 Time (days) r = Per capita rate of increase N= Number of individuals at start of time interval K = Carrying capacity G= Growth rate (number of individuals added per unit time) Total rotifer population