Dominance rank and self-scratching among wild female Barbary macaques (Macaca sylvanus)
Abstract
Measuring rates of self-scratching provides a powerful index of anxiety in non-human primates, and investigating the relationship between self-scratching and dominance rank can shed light on the ‘emotional costs’ of holding different positions in the hierarchy. Here we explored the relationship between self-scratching rates and rank in wild adult female Barbary macaques (Macaca sylvanus) in Morocco. We found a significant correlation between rank and females’ mean...