Logistic Map is not only used in Population Ecology but also considered one of the starting point of Chaos Theory. I developed this app to help people who are studying Population Ecology or Chaos Theory. *Logistic Map may not necessarily apply to changes in population of actual organisms, because Logistic Map is a model of a simple change of the population. ■What is Logistic Map? The Logistic Map is the map that is generated from the Logistic Function that has been devised as a variation model of the population of an organism. It is expressed by the following function. X(n+1) = a・X(n)・(1-X(n)) In the above equation, the meaning of each symbol is as follows. ・n:Generation (n=1,2,3,...) ・X(n):Value obtained by normalizing the Population of Generation n-th(0≦X(n)≦1) ・a:Value obtained by normalizing the Reproductive Rates(0≦a≦4) You can calculate the population of the next generation from a population of a certain generation by using this function. In addition, You can predict the variation of the population over the long term by calculating the population of individuals repeatedly in this function. ■Pattern of Logistic Map Logistic map vary widely depending on the value of "a". ・In case (0≦a≦1) : X(n) converges to 0. ・In case (1<a≦2) : X(n) converges to 1-(1/a). ・In case (2<a≦3) : X(n) converges to 1-(1/a) while oscillating. ・In case (3<a≦3.5699456・・・) : X(n) oscillate between the periodic point individual Power of 2 ・In case (3.5699456・・・<a≦4) : X(n) Change irregularly.(Chaotic region)*It may become periodically by the value of a. Please try to observe the changes of Logistic Map by changing the various initial values. ■Main function of App 1. Simulation of changes in colony size 2. Line graph of changes in population 3. Output CSV file(Need to purchase add-on.) 4. Output Graph Image(Need to purchase add-on.)