BIOL208 Lecture Notes - Lecture 16: Exponential Growth, Logistic Function
15 Feb 2018
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Bio 208 lecture 16 wednesday, february 14, 2018. Per capita rate of increase r = (lnr0) / t r = (ln0. 787) / 5. 04 = -0. 048: negative because this population is in decline. Geometric population growth: way of modelling population growth in organisms with pulsed reproduction, e. g. annual flowers. If you multiply geometric rate of increase by the population at any given time, you can calculate the ending population size: multiply it out for one generation for one generation, e. g. two generations. In general, the size of a population growing at a geometric rate, at time t, can be modelled as: nt = n0*(geometric rate of increase)t. Logistic population growth curves: are exponential growth curves modified to include biotic limitations on population growth, produces sigmoidal (s-shaped) population growth curves. Carrying capacity = k: population size at which growth stops is called the carrying capacity, or k.
