NetLogo User Community Models
by Enée Gilles (Submitted: 08/21/2015)
## WHAT IS IT?
In this project, a colony of ants forages for food. Though each ant follows a set of simple rules, the colony as a whole acts in a sophisticated way.
## HOW IT WORKS
When an ant finds a piece of food, it carries the food back to the nest, dropping a chemical as it moves. When other ants "sniff" the chemical, they follow the chemical toward the food. As more ants carry food to the nest, they reinforce the chemical trail.
Food gives a certain amount of energy. When ants get back to nest, they give half the energy they carry to the nest except if they are starving.
## HOW TO USE IT
Click the SETUP button to set up the ant nest (in violet, at center) and three piles of food. Click the GO button to start the simulation. The chemical is shown in a green-to-white gradient.
The EVAPORATION-RATE slider controls the evaporation rate of the chemical. The DIFFUSION-RATE slider controls the diffusion rate of the chemical.
If you want to change the number of ants, move the POPULATION slider before pressing SETUP.
Other sliders are explained above.
## THINGS TO NOTICE
With certain settings, you can obtain an equilibrium with the two colonies surviving. The clues can be:
## HOW TO CITE
This work is based upon:
* Wilensky, U. (1997). NetLogo Ants model. http://ccl.northwestern.edu/netlogo/models/Ants. Center for Connected Learning and Computer-Based Modeling, Northwestern University, Evanston, IL.
It was enhanced by:
## COPYRIGHT AND LICENSE
Copyright 2015 Gilles Enée.
Under Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International rules.
(back to the NetLogo User Community Models)