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Lecture 20 goals

# Lecture 20 goals - Lecture 9 Goals Part I POPULATION GROWTH...

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Lecture 9 - Goals Part I: POPULATION GROWTH Be able to: Explain under what circumstances to expect a population to exhibit geometric growth. Given numerical values for three of the four parameters in the equation for size of a population undergoing geometric growth, and the equation itself, calculate the value of the fourth parameter (e.g. given N o , λ, and t, calculate N t ). Draw the general pattern of geometric population growth over time, and recognize that pattern. Explain under what circumstances to expect a population to exhibit exponential growth. Given numerical values for three of the four parameters in the equation for size of a population undergoing exponential growth, and the equation itself, calculate the value of the fourth parameter (e.g. given N o , r max , and t, calculate N t ). Given numerical values for two of the three parameters in the equation for the rate of exponential population growth at a given time, and the equation itself, calculate the value of the third parameter (e.g. given N and r max , calculate dN/dt). Draw the general pattern of exponential population growth over time, and recognize that pattern. Distinguish between density-dependent and density-independent effects on birth and death rates, based either on graphical or textual information.

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