For background information on these frogs and to hear their calls, see their species profiles here.
Female Mate Choice Experiments
The experiment setup:
We present the female with two speakers, each playing a different call. The females perceive the calls as coming from a male and approach the speaker that broadcasts the call she prefers. When the female approaches to within 5 cm of the speaker and stays within that vicinity for at least 3 seconds, we record this as her mate choice.
VIDEO 1: TÚNGARA FROG PHONOTAXIS
VIDEO 2: GREEN TREEFROG PHONOTAXIS