A longitudinal network analysis of social dynamics in rooks corvus frugilegus : repeated group modifications do not affect social network in captive rooks

Current Zoology
Palmyre H BoucherieValérie Dufour

Abstract

Numerous studies have investigated the remarkable variation of social features and the resulting structures across species. Indeed, relationships are dynamic and vary in time according to various factors such as environmental conditions or individuals attributes. However, few studies have investigated the processes that stabilize the structures within a given species, and the behavioral mechanisms that ensure their coherence and continuity across time. Here, we used a dynamic actor-based model, RSiena, to investigate the consistency of the temporal dynamic of relationships of a group of captive rooks facing recurrent modifications in group composition (i.e., the loss and introduction of individuals). We found that changes in relationships (i.e., formation and removal) followed consistent patterns regardless of group composition and sex-ratio. Rooks preferentially interacted with paired congeners (i.e., unpopular attachment) and were more likely to form relationships with individuals bonded to a current social partner (i.e., "friends of friends", or triadic closure). The sex of individuals had no effect on the dynamic of relationships. This robust behavioral mechanisms formed the basis of inter-connected networks, composed of su...Continue Reading

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Citations

Apr 2, 2019·Behavioral Ecology and Sociobiology·Palmyre H BoucherieThomas Bugnyar
Jun 28, 2019·Frontiers in Veterinary Science·Sebastian O SosaCédric Sueur
Dec 23, 2016·The Journal of Animal Ecology·David N FisherTom Tregenza

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