Spectrogram and oscillogram of the advertisement call of Pristimantis sp. 4 myersi group (ZSFQ 4427, SVL 15.28 mm, 7.9 °C air temperature, 82% relative humidity). Spectrogram obtained using the Hann window at 99% overlap, 256 samples of FFT size and 3 dB filter bandwidth of 248 Hz.

 
 
  Part of: Batallas D, Márquez R, Guayasamin JM (2025) Sounds of the northern Andes: the calls of a diverse and endangered frog community (Amphibia, Anura) from Ecuador. ZooKeys 1224: 211-252. https://doi.org/10.3897/zookeys.1224.137972