[ Index ]
This file calculates the birth rate, death rate, and population of foxes.
fox_births[ t ] is the number of foxes born during time t.
table fox_births : time -> general. fox_births[ t ] = number_of_foxes[ t ] * birth_rate_of_foxes * ( number_of_rabbits[ t ] / 10 ) * 0.001.
fox_deaths[ t ] is the number of foxes killed during time t.
table fox_deaths : time -> general. fox_deaths[ t ] = number_of_foxes[ t ] * death_rate_of_foxes * 0.05.
number_of_foxes[ t ] is the population of foxes at time t.
table number_of_foxes : time -> general. number_of_foxes[ 1 ] = initial_number_of_foxes. number_of_foxes[ t>1 ] = number_of_foxes[ t-1 ] + fox_births[ t-1 ] - fox_deaths[ t-1 ].
initial_number_of_foxes is the fox population at time 1. This is input by the user.
table initial_number_of_foxes : -> general. initial_number_of_foxes = 30.
birth_rate_of_foxes is the proportion of foxes born in a year. It is input by the user.
table birth_rate_of_foxes : -> general. birth_rate_of_foxes = 1.
death_rate_of_foxes is the proportion of foxes that die in a year. It is input by the user.
table death_rate_of_foxes : -> general. death_rate_of_foxes = 1.