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Lab 1 - Lab 1 Exponential Growth 1 What is R What two...

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Lab 1: Exponential Growth 1. What is  R ? What two components of  R  did we manipulate in this lab? R is defined as the rate of change of a specific population over a given amount of  time. A positive growth rate indicates that the population is increasing, while a negative  growth rate indicates population decline. A growth ratio of zero indicates that there was  the same number of people at the two times -- net difference between births, deaths and  migration is zero. However, a growth rate may be zero even when there are significant  changes in the birth rates, death rates, immigration rates, and age distribution between  the two times.  In this lab there were two components of R which were manipulated were the  fecundity and mortality rates, which in turn affected the overall growth rate R in exercise  1.1(Blue Whale Recovery). In exercise 1.2, the population and time interval both  changed, causing fluctuations in the growth rate between yearly intervals. Exercise 1.3  (Human Population 1995-2035), we investigated assumed stabilization of human  population, and only growth rate and fecundity were manipulated.
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