Table 1.

PCs with varimax rotation: includes all males (n = 64), loadings with values of greater than or equal to 0.5 or less than or equal to −0.5 are bolded (prop., proportion; dur., duration; freq., frequency).

male behaviour/trait	comp. A1	comp. A2	comp. A3	comp. A4	comp. A5	comp. A6	comp. A7	comp. A8	comp. A9	comp. A10	behaviour groupings
fan-dance (prop.)	0.947	0.055	0.032	0.053	0.014	−0.002	0.111	0.197	0.124	0.135	visual effort
third-leg-wave (prop.)	0.576	0.056	−0.012	0.040	0.068	−0.020	0.092	0.150	0.033	0.791
side-step (prop.)	0.950	−0.027	0.037	0.044	−0.072	0.033	0.113	0.081	0.190	0.144
leg-wave rate	0.195	0.113	0.042	0.107	−0.102	−0.115	0.935	0.060	0.176	0.061	visual vigour
vibrate (prop.)	0.289	0.094	−0.043	0.174	0.021	−0.055	0.187	0.008	0.914	0.024	vibrational effort
signal-to-silence (prop.)	0.262	0.149	0.153	−0.026	0.108	−0.053	0.061	0.926	0.008	0.099	vibrational vigour
mean no. of Rus	0.017	0.801	0.549	−0.041	−0.015	0.011	0.100	0.144	0.067	−0.007	vibrational qualities early (Rb-Rus)
mean Rb-Ru dur.	0.050	−0.058	0.961	−0.162	−0.068	0.099	0.024	0.119	−0.050	−0.005
mean rate of Rus	0.022	0.939	−0.260	0.125	0.065	−0.010	0.063	0.069	0.057	0.047
mean peak freq.	0.076	0.082	−0.164	0.961	−0.053	0.011	0.099	−0.023	0.151	0.025
mean bandwidth	0.022	−0.001	0.089	0.009	−0.010	0.989	−0.097	−0.044	−0.044	−0.011
male weight	−0.033	0.044	−0.063	−0.048	0.987	−0.010	−0.087	0.090	0.016	0.037	size
variance	2.332	1.585	1.360	1.019	1.018	1.009	0.987	0.979	0.955	0.683
% variance	19.430	13.212	11.336	8.491	8.481	8.406	8.228	8.157	7.959	5.694
cumulative % variance	19.430	32.642	43.979	52.470	60.950	69.356	77.584	85.741	93.700	99.394