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Can altruism evolve in purely viscous populations?
TLDR
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.
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Foraging specialization without relatedness or dominance among co-founding ant queens
TLDR
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.
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Queen aggression, pleometrotic advantage and brood raiding in the ant Veromessor pergandei (Hymenoptera: Formicidae)
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Natal Nest Distribution and Pleometrosis in the Desert Leaf-Cutter Ant Acromyrmex Versicolor (Pergande) (Hymenoptera: Formicidae)
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Reciprocity and the emergence of reputation
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An experimental analysis of pleometrotic advantage in the desert seed-harvester antMessor pergandei (Hymenoptera; Formicidae)
TLDR
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.
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Viscous Population Equilibria
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Social interaction among pleometrotic queens of Veromessor pergandei (Hymenoptera:Formicidae) during colony foundation
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Population Viscosity and Kin Selection
TLDR
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.
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Intraspecific Brood Raiding, Territoriality, and Slavery in Ants
TLDR
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.
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