Cooperation and Specialisation without Kin Selection
CPM Report No.: 02-88
By: David Hales
Date: 11th February 2002.
Version 2: 15th February 2002
We present a model that demonstrates the evolution of groups composed of cooperative
individuals performing specialised functions. Specialisation and cooperation results
from an evolutionary process in which selection and reproduction is based on individual
fitness. Specialists come to help (through the donation of resources) their non-kin
group members, optimising their behaviour as a team and producing a fitter group.
The mechanism that promotes this benevolent, cooperative group behaviour is based on
the concept of a “tag”. Tags are observable markings, cues or displays.
Individuals can observe the tags of others and take alternative actions based on
those observations (e.g. to altruistically help or not).