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Renewed interest in fission‐fusion dynamics is due to the recognition that such dynamics may create unique challenges for social interaction and distinctive selective pressures acting on underlying…
Group size, grooming and social cohesion in primates
Resting time as an ecological constraint on primate biogeography
Time as an ecological constraint
- Robin I. M. Dunbar, A. Korstjens, J. Lehmann
- Environmental ScienceBiological reviews of the Cambridge Philosophical…
- 1 August 2009
The linear programming approach identifies the realizable niche space within which a species can maintain coherent groups that are larger than the minimum viable group size (or density) and allows us to understand better why a given taxon can survive in some habitats but not others.
Fission–fusion social systems as a strategy for coping with ecological constraints: a primate case
A linear programming approach is used to build a time budget model that predicts the upper bound on group size in order to test the hypothesis that fission–fusion social systems are the outcome of time constraints and suggests that the costs of travel are limiting for chimpanzees.
Fission-Fusion Dynamics : New Research Frameworks. Commentaries
Renewed interest in fission-fusion dynamics is due to the recognition that such dynamics may create unique challenges for social interaction and distinctive selective pressures acting on underlying…
HOW ADAPTIVE OR PHYLOGENETICALLY INERT IS PRIMATE SOCIAL BEHAVIOUR? A TEST WITH TWO SYMPATRIC COLOBINES
Female inter-group aggression was not linked to female philopatry in black-and-white colobus and this indicates that phylogenetic inertia did not constrain this aspect of social behaviour, according to socio-ecological theory.
Intergroup Relationships in Western Black-and-White Colobus, Colobus polykomos polykomos
Female aggression between groups was related to food procurement and that male forays might be related to infanticide, and the species is particularly interesting because female aggression occurs during intergroup interactions in combination with female dispersal.
Fissioning minimizes ranging costs in spider monkeys: a multiple-level approach
The results indicate that on the whole spider monkeys successfully minimize ranging costs by fission and fusion of subgroups, and at all the other time-scale levels larger subgroups did not experience greater ranging costs than smaller subgroups.
Time as a constraint on group size in spider monkeys
- A. Korstjens, Ingrid Lugo Verhoeckx, Robin I. M. Dunbar
- Environmental ScienceBehavioral Ecology and Sociobiology
- 20 June 2006
This time budget model predicted the presence of spider monkeys better than a model based directly on climate variables and showed a U-shaped relationship with party size, which suggests that moving time is the factor that keeps spider monkey communities from travelling together in a tight group.