Under multilevel selection: "when shall you be neither spiteful nor envious?".
J Theor Biol
; 340: 73-84, 2014 Jan 07.
Article
in En
| MEDLINE
| ID: mdl-24041593
ABSTRACT
In this paper, we study the egalitarianism-game in multilevel selection situation. The individuals form reproductive groups. In each group, an egalitarianism-game determines the number of juveniles of different phenotypes (spiteful, envious, neutral and donator). Before the juveniles form the next reproductive group, they have to survive either predators' attacks or a fight between two groups. We adopt the ESS definition of Maynard Smith to multilevel selection. Based on the "group size advantage" assumption (which claims that each juvenile's survival rate depends on the size of his own group, supposing that either the survival rate under predators' attacks is higher in larger groups, or in inter-group aggression usually the larger group wins) we found that when the survival probability has a massive effect on the average fitness, then "group fitness maximizing behavior" (in our case, either neutral or donator) has evolutionary advantage over "competitive behavior" (in our case, either spiteful or envious).
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Selection, Genetic
/
Biological Evolution
/
Game Theory
Limits:
Animals
/
Humans
Language:
En
Journal:
J Theor Biol
Year:
2014
Document type:
Article