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Can altruism evolve in purely viscous populations?
A computer simulation model of ‘pure’ population viscosity is analysed, in which offspring are always deposited close to parents and no global mixing stage exists, which generates a high coefficient of relatedness among interacting individuals.
Foraging specialization without relatedness or dominance among co-founding ant queens
The existence of foraging specialists among unrelated co-foundresses of the leaf-cutter ant Acromyrmex versicolor is reported on; such task specialization leaves the forager at a relative fitness disadvantage within her foundress association.
Queen aggression, pleometrotic advantage and brood raiding in the ant Veromessor pergandei (Hymenoptera: Formicidae)
Natal Nest Distribution and Pleometrosis in the Desert Leaf-Cutter Ant Acromyrmex Versicolor (Pergande) (Hymenoptera: Formicidae)
Reciprocity and the emergence of reputation
An experimental analysis of pleometrotic advantage in the desert seed-harvester antMessor pergandei (Hymenoptera; Formicidae)
The results suggest that the selective advantage of cooperative colony foundation (pleometrosis) in this and similar species may derive directly from the ability of multiple foundresses to produce a larger brood raiding force.
Viscous Population Equilibria
Social interaction among pleometrotic queens of Veromessor pergandei (Hymenoptera:Formicidae) during colony foundation
Population Viscosity and Kin Selection
- G. B. Pollock
- BiologyThe American Naturalist
- 1 December 1983
Contrary to the polygynous family hypothesis, kin selection in the presence of population viscosity cannot yield evolutionarily stable semisociality; effective kin selection requires parental mediation to form temporary groups of related conspecifics.
Intraspecific Brood Raiding, Territoriality, and Slavery in Ants
Recent research on the establishment of colonies in several non-dulotic, intra-specifically territorial ants provides support for and an extension of the territorial hypothesis as a general explanation for dulosis.