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Figure 7


Fig. 7. Correlations between signal parameters. Raw species means are shown with the correlation calculated using TIPS model (large {alpha}; non-phylogenetic). (A) Correlation between chirp undershoot FM and chirp–FM slope. More negative values indicate larger undershoots (y-axis) and faster returns to baseline EODf (x-axis). (B) Correlation between chirp FM and chirp %AM. Larger values on the x-axis indicate greater reduction in EOD amplitude during chirps. Letters on each data point indicate species as follows: A, S. cf. curvirostris; B, S. cf. roseni; C, S. terminalis; D, P. hasemani (Peru); E, P. hasemani (Brazil); F, A. albifrons; G, A. leptorhynchus; H, `A.' bonapartii; I, `A.' n. sp. B; J, S. nattereri; K, S. porcinum; L, P. gimbeli (Peru); M, P. gimbeli (Brazil); N, A. devenanzii; O, A. balaenops.