Lecture 31: Population Growth

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7 Terms

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population dynamics

change in population density overtime

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factors that change population dynamics

birth rate (b), death rate (d), immigration rate (I), and emigration rate (E)

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how to measure the change in a population from a starting density (N0) to a new density (given b, d, i, e)

N(1) =  N(0) + B - D + I - E

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<p>exponential growth</p>

exponential growth

populations grows to infinity

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logistic growth

reproduction stops and reaches carrying capacity, population levels out

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change in population size

births - deaths

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absolute fitness (per capita growth rate)

Birth rate (b) (calculated from fertility data) as a function of density, N - Death rate (d) (calculated from survival data) as a function of density, N