Strength of female preference for male scent.

<p>Female ‘strength of preference’ was calculated for every male pair as the difference in the mean proportion unmated female lizards (see text for details) were observed at the areas containing chemical cues from size-matched vitamin E supplemented <i>vs.</i> control male European green lizards. Vitamin E difference is the difference in relative vitamin E content of the femoral secretions of size-matched vitamin E supplemented <i>vs.</i> control males within a male pair.