Personality traits and behavioural profiles in the domestic canary are affected by sex and photoperiod

摘要: Personality traits and behavioural profiles are generally assumed to be stable in adulthood. Yet, it has been hypothesised that animals should cope with cyclical fluctuations by adjusting both single behaviours suites of behaviour. Photoperiod is well known induce hormonal physiological changes, these changes can turn affect personality profiles. This study the first explicitly investigate influence photoperiod on traits. Six potential (within-flock activity, ability escape, response threat, isolation calling, boldness neophobia) dominance were measured four times 96 domestic canaries Serinus canaria (48 males 48 females): twice during a long (Long Days) 6 months later short (Short Days). Without regard sex photoperiod, most highly repeatable, bolder more dominant, less sensitive an external threat neophobic. In addition, active individuals within flock difficult catch. affected remained repeatable each though we observed plasticity differences for neophobia within-flock activity. Concerning profiles, negative relationship between homogenous sexes Short Days as Long Days. Then, catch but not Finally, other correlations only varied also sex. Our highlights importance expression need measure them across whole photoperiodic cycle.