Stabilizing and directional prefernces of female Hyla ebraccata for calls differing in static properties. This study focuses on female prefernces in Hyla ebraccata for computer-synthesized calls differeing in one of two call properties, pulse repetion rate or dominant frequncy. Females exert directional selection on dominant frequency. Because size is negatively correlated with dominant frequency, female choice could explain size-biased mating success observed in natural populations. Females exerted stabilizing selection on pulse repetition rate.
Female choice creates either directional or stabilizing selection on static properties of calls.