Data from: Predictable males and unpredictable females: repeatability of sociability in eastern water dragons

There is growing evidence for consistent among-individual variation in
individual sociability (e.g., tendency to be sociable) in a number of
species. However, sexes often differ in their social behaviors, as well as
the selection pressures which they experience. This may translate into
differences in repeatability of sociability, although this has not yet
been tested. Here, we investigated whether eastern water dragons
(Intellegama leseurii) exhibited evidence of consistent among-individual
variation (i.e., repeatability) in 4 different measurements of
sociability. Specifically, we measured sociability in 4 ways (degree,
centrality, proportion of time spent being social, and number of
preferences), and tested whether there was evidence for sex differences in
the repeatability of these sociability measurements, or whether observed
levels of repeatability could be explained by a stable social environment.
Our findings provide new evidence for sex differences in social
personality: we found that males were significantly repeatable in 3 of 4
sociability measurements (degree, centrality, and proportion of time spent
being social), whereas females were not. Further, we found that these
differences were not a result of differences in the dynamics of the social
environment. We discuss our findings in the context of sexual selection,
as well as sex differences in the evolutionary drivers of social behavior.