Recent research in behavioural ecology has revealed the structure of animal personality and connections to ecologically and evolutionarily important traits. Personality is hypothesized to influence social interactions through individual behavioural differences or personality-based dyadic interactions. We describe the structure of personality traits and ask if two traits, boldness and exploration, play a role in the strength or pattern of social associations in a wild population of degus, a rodent that often lives communally with unrelated conspecifics. Boldness was repeatable in both adults and juveniles, but exploration was only repeatable in adults. We found evidence for a behavioural syndrome between exploration and boldness in adult degus. We documented negative assortment by exploratory personality type; more exploratory animals shared burrows with less exploratory animals. However, tendency towards boldness and exploration were not predictive of association strength. Our results highlight a potential connection between personality and social structure in a communally nesting species.
Maternal stress and plural breeding with communal care affect development of the endocrine stress response in a wild rodent. —
Assortment in social networks and the evolution of cooperation. — In:
Animal social networks (
KrauseJ.JamesR.FranksD.W.CroftD.P., eds). Oxford University Press, Oxford, p.
An integrative view of caviomorph social behaviour. — In:
Sociobiology of cavimorph rodents: an integrative approach (
EbenspergerL.A.HayesL.D., eds). Wiley, Chichester, p.
An experimental examination of the consequences of communal versus solitary breeding on maternal condition and the early postnatal growth and survival of degu, Octodon degus, pups. —
Early fitness consequences and hormonal correlates of parental behaviour in the social rodent, Octodon degus. —
The modulating role of group stability on fitness effects of group size is different in females and males of a communally rearing rodent. —
J. Anim. Ecol.85:
A meta-analysis of correlated behaviours with implications for behavioural syndromes: mean effect size, publication bias, phylogenetic effects and the role of mediator variables. —
A meta-analysis of correlated behaviors with implications for behavioral syndromes: relationships between particular behavioral traits. —
Fitness consequences of group living in the degu Octodon degus, a plural breeder rodent with communal care. —
The building-up of social relationships: behavioural types, social networks and cooperative breeding in a cichlid. —
Philos. Trans. Roy. Soc. Lond. B: Biol. Sci.365:
SnijdersL.van RooijE.P.BurtJ.M.HindeC.A.van OersK.NaguibM. (2014).
Social networking in territorial great tits: slow explorers have the least central social network positions. —