The study goes on to present forth the evidence that the males who arrive earlier have a higher probability of mating than the males that arrived late. Females however will generally use call amplitude and frequency to select a mate, as these characteristics correlate to body size.
The study further presents evidence that males arriving earlier have a higher likelihood of mating than those who arrive later. Females, however, select mates based on call amplitude and frequency, as these traits correlate to body size.