Figure 3. The proportion of behaviour related to aggressive interactions with other males (open squares) relative to active interactions with females (filled circles) for each male as a function of the number of offspring sired.

Male body size is noted where “S” refers to small males (88–89 mm) and “L” refers to large males (95–96 mm). Males that spent a greater proportion of time interacting with females also tended to spend comparatively little time interacting with rival males.