Evolutionary Dead End in the Galápagos: Divergence of Sexual Signals in the Rarest of Darwin's Finches
Figure 2
Song divergence between the two remnant mangrove finch populations.
The figure illustrates the degree of structural song differences between populations and individuals as well as within individuals. A Spectrograms of two randomly selected song renditions from two exemplary males from the west coast population. All west coast songs looked similar to these. B Spectrograms of two randomly selected song renditions from the two eastern males.