Data from: Nest inheritance is the missing source of direct fitness in a primitively eusocial insect

Ellouise Leadbeater, Jonathan M. Carruthers, Jonathan P. Green, Neil S. Rosser & Jeremy P. Field
Animals that co-operate with non-relatives represent a challenge to inclusive fitness theory, unless co-operative behavior is shown to provide direct fitness benefits. Inheritance of breeding resources could provide such benefits, but this route to co-operation has been little investigated in the social insects. We show that nest inheritance can explain the presence of unrelated helpers in a classic social insect model, the primitively eusocial wasp Polistes dominulus. We found that subordinate helpers produced more direct...
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