![]() ![]() For (d–i): data as mean, SEM is given only for black symbols for clarity, dashed lines indicate level of zero scores, male distributions are given as median and quartiles above each graph. Preference functions for chirp rate, cps (d–f) and chirp duty cycle, cdc (g–i) were derived from the preference tests in (a–c) and separate test series (black symbols). For strength of female preference for (a–c) see inset in Fig. 3c. Profiles were constructed using Delaunay triangulation and a linear interpolation algorithm in MATLAB. ![]() Chirp rate increases for patterns from upper right to lower left corner, chirp duty cycle increases for patterns from upper left to lower right corner. The carrier frequency and the pulse rate were chosen for best responses by each species. Open circles indicate parameters of the test patterns. a–c Response profiles for chirp patterns. Preference functions for chirp patterns from females of G.
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