Many animal species form dominance hierarchies, with dominant and subordinate individuals exhibiting different behavioural traits – many of which describe their personalities.


Personality and social dominance in the domestic fowl


Many animal species form dominance hierarchies, where dominant and subordinate individuals differ in behavioural traits that are as aspects of personality. We use the domestic fowl, a group-living species that forms clear dominance hierarchies, to study the relationship between personality and social dominance.

Principal Investigators: Olof Leimar
Contributing Researchers: Anna Favati


Personality and life-history strategies in killifish

Consistent individual differences in behaviour and physiology can be associated with different life-history strategies, which have been termed “pace-of-life syndromes” (POLS). Using 25 species of killifish as a model, which contains independent and replicated evolutionary transitions between annual and non-annual life-history strategies, we are investigation correlations between life-history strategy and behavioural traits, how personality develops over ontogeny and the influence of social interactions on personality traits.

Principal Investigators: Björn Rogell, Alejandro Gonzalez Voyer
Contributing Researchers: William Sowersby, Simon Eckerström Liedholm


Development of personality in dogs and wolves

Photo: Christina Hansen Wheat

Personality has great implications for behaviour and life ecology in a number of species. However, very little is known about the development of personality in juvenile animals. We address this question by obtaining temporal personality assessments in juvenile dogs (Canis familiaris) and wolves (Canis lupus) to examine the ontogeny of personality within an evolutionary framework.

Principal Investigators: Hans Temrin
Contributing Researchers: Christina Hansen Wheat