Adult wheel access interaction with activity and boldness personality in Siberian dwarf hamsters (Phodopus sungorus)

The notion that men are more variable than women has become embedded into scientific thinking. For mental traits like personality, greater male variability has been partly attributed to biology, underpinned by claims that there is generally greater variation among males than females in non‐human animals due to stronger sexual selection on males. However, evidence for greater male variability is limited to morphological traits, and there is little information regarding sex differences in personality‐like behaviours for non‐human animals. Here, we meta‐analysed sex differences in means and variances for over 2100 effects (204 studies) from 220 species (covering five broad taxonomic groups) across five personality traits: boldness, aggression, activity, sociality and exploration. We also tested if sexual size dimorphism, a proxy for sex‐specific sexual selection, explains variation in the magnitude of sex differences in personality. We found no significant differences in personality between the sexes. In addition, sexual size dimorphism did not explain variation in the magnitude of the observed sex differences in the mean or variance in personality for any taxonomic group. In sum, we find no evidence for widespread sex differences in variability in non‐human animal personality.

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Adult wheel access interaction with activity and boldness personality in Siberian dwarf hamsters (Phodopus sungorus)

Cited by 3 publications

References 62 publications

Early life events, but not response to a short photoperiod, correlate with foraging behaviour of Siberian hamsters

Early life events, but not response to a short photoperiod, correlate with foraging behaviour of Siberian hamsters

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A meta‐analysis of sex differences in animal personality: no evidence for the greater male variability hypothesis

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