Questions and assignments to Lecture 5
 Population numbers of cockroaches double every month (30 d). What is their intrinsic rate of increase (per day)?
 What is the intrinsic rate of increase in a human population if every family has 3 children at parent's age of 30 (there are no singles, no divorces, sex ratio 1:1)? What would be the numbers of human population after 100 years if initial numbers are 4 billion?
 A new lake was created after building a dam. The number of fish censused after 2, 4, 6, 8 and 10 years since that time was 1000, 2000, 3500, 5000 and 6000. Estimate parameters of the logistic model using nonlinear regression. Plot the data and the model on one graph.
 Use Excel to simulate population dynamics with the discretetime logistic model (Ricker's model) for 60 generations. Use K=100; r = 0.1, 0.5, 1.0, 1.5, 1.9, 2.2; No = 10.
