Principal Component Analysis (PCA) based on eight acoustic parameters of 20 Anuran species (Suppl. material 2, Table 2). The figure displays the number of principal components in the lower left-hand corner and the loading of each variable on the components in the upper right-hand corner.

 
 
  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