Supplementary tables

Table A: The song parametersand the morphologycharacteristicsof 64 Chorthippus biguttulus-males

Onset [dB] / Offset [dB] / Period [ms] / Duration syllable [ms]
Mean / 6.7 / -17.5 / 86,9 / 68.8
Median / 6.7 / -15.35 / 85,8 / 68.0
Minimum / 4.2 / -32.0 / 68.4 / 51.3
Maximum / 10.8 / -7.3 / 116.3 / 92.2
SD / 1.3 / 6.6 / 11.5 / 10.3
SEM / 0.16 / 0.82 / 1.44 / 1.47
Parametric? / yes / no / no / yes
Duration pause [ms] / Syllable/pause / Length femur [mm] / Width femur [mm]
Mean / 18.2 / 4.21 / 8.7 / 2.12
Median / 18.2 / 4.0 / 8.8 / 2.12
Minimum / 10.2 / 2.7 / 6.7 / 1.98
Maximum / 26.4 / 8.7 / 10.1 / 2.23
SD / 3.8 / 1.3 / 0.9 / 0.07
SEM / 0.47 / 0.16 / 0.11 / 0.01
Parametric? / yes / no / no / yes
Weight femur [mg] / Weight leg [mg] / Width thorax [mm] / Width head capsule [mm]
Mean / 7.7 / 8.8 / 2.03 / 2.08
Median / 8 / 9.0 / 2.01 / 2.12
Minimum / 5.4 / 6.2 / 1.89 / 1.83
Maximum / 10.2 / 11.2 / 2.21 / 2.30
SD / 1.1 / 1.01 / 0.08 / 0.11
SEM / 0.13 / 0.13 / 0.01 / 0.01
Parametric? / no / no / no / no

Table B: correlation matrix of the Eigenvalues (PCA) with the song parameters

Eigenvalue / 2.284 / 1.886 / 1.2738 / 1.03
% of variance / 0.286 / 0.236 / 0.159 / 0.13
Cumulative / 0.286 / 0.521 / 0.68 / 0.81
Variable / PC1 / PC2 / PC3 / PC4
Onset [dB] / 0.220 / 0.031 / -0.681 / 0.255
Offset [dB] / -0.272 / 0.204 / 0.616 / 0.080
Period [ms] / 0.589 / -0.190 / 0.300 / 0.027
Duration syllable [ms] / 0.465 / -0.466 / 0.205 / 0.092
Duration pause [ms] / 0.506 / 0.421 / 0.104 / -0.125
Syllable/pause / -0.238 / -0.639 / 0.031 / 0.075
Onset rise [ms] / -0.023 / 0.042 / 0.102 / 0.914
max. gap-depth [V] / 0.037 / 0.341 / 0.058 / 0.252

Table C: Correlation matrix of the Eigenvalues (PCA) with the morphological parameters

Eigenvalue / 2.2475 / 1.4002 / 0.9574
% of variance / 0.375 / 0.233 / 0.16
Cumulative / 0.375 / 0.608 / 0.768
Variable / PC1 / PC2 / PC3
Length femur [mm] / 0.219 / 0.661 / 0.190
Width femur [mm] / 0.361 / 0.045 / 0.553
Weight femur [mg] / 0.594 / -0.147 / -0.353
Weight of the leg [mg] / 0.586 / -0.227 / -0.311
Width thorax [mm] / 0.309 / -0.188 / 0.619
Width head capsule [mm] / -0.174 / -0.673 / 0.232

Table D: correlation matrix of the Eigenvalues (PCA) with the song and the morphological parameters

Eigenvalue / 2.8439 / 2.3099 / 2.1235 / 1.5396 / 1.3688
% of variance / 0.203 / 0.165 / 0.152 / 0.11 / 0.098
Cumulative / 0.203 / 0.368 / 0.52 / 0.63 / 0.728
Variable / PC1 / PC2 / PC3 / PC4 / PC5
Onset [dB] / 0.445 / 0.128 / -0.010 / -0.388 / -0.114
Offset [dB] / -0.187 / 0.094 / 0.216 / 0.405 / 0.173
Period [ms] / 0.184 / -0.507 / -0.293 / -0.011 / 0.221
Duration syllable [ms] / 0.105 / -0.341 / -0.498 / -0.143 / 0.209
Duration pause [ms] / 0.246 / -0.510 / 0.254 / 0.069 / 0.025
Syllable/pause / -0.189 / 0.291 / -0.501 / -0.143 / 0.061
Onset rise [ms] / 0.079 / 0.041 / 0.013 / 0.156 / -0.309
max. gap-depth [V] / 0.016 / -0.075 / 0.352 / -0.238 / 0.084
Length femur [mm] / 0.188 / 0.200 / 0.176 / -0.325 / 0.440
Width femur [mm] / 0.376 / -0.040 / 0.284 / -0.051 / -0.117
Weight femur [mg] / 0.395 / 0.152 / -0.119 / 0.458 / 0.168
Weight of the leg / 0.411 / 0.178 / -0.153 / 0.443 / 0.066
Width thorax [mm] / 0.331 / 0.263 / -0.152 / -0.189 / -0.408
Width head capsule [mm] / -0.088 / -0.291 / -0.088 / 0.090 / -0.593

Table E: Correlation between the song parameters, the morphological parameters and the developmental time of 20 males of C. biguttulus

Parameter / Statistical test / r / P (Bernoulli-Holm-correction)
Onset [dB] / Pearson / -0.195 / 0.410
Offset [dB] / Pearson / -0.364 / 0.115
Period [ms] / Pearson / 0.122 / 0.608
Syllable [ms] / Pearson / 0.450 / 0.046 (0.598)
Pause [ms] / Pearson / -0.137 / 0.564
Syllable/pause / Pearson / -0.431 / 0.192
Onset rise [ms] / Spearman / 0.075 / 0.774
Max. gap-depth / Spearman / 0.263 / 0.342
Length femur [mm] / Spearman / -0.348 / 0.133
Width femur [mm] / Pearson / -0.166 / 0.484
Weight femur [mg] / Pearson / -0.282 / 0.229
Width thorax [mm] / Spearman / 0.098 / 0.680
Width head capsule [mm] / Pearson / 0.162 / 0.495

Table F: Correlation-coefficients (r) between the song parameters and the morphological parameters of 64 males of C. biguttulus; S: Spearman-correlation; P: Pearson-correlation; significant correlations are indicated in bold

Onset [dB] / Offset [dB] / Periode [ms] / Syllable [ms] / Pause [ms] / Syllable/Pause
Length Femur [mm] / 0.327 (S) / 0.095 (S) / -0.115 (S) / -0.182 (S) / -0.044 (S) / -0.109 (S)
Width Femur [mm] / 0.363 (P) / -0.024 (S) / -0.001 (S) / -0.193 (P) / 0.388 (P) / -0.438 (S)
Weight Femur [mg] / 0.244 (S) / 0.0271 (S) / -0.093 (S) / -0.169 (S) / -0.002 (S) / -0.138 (S)
Width Thorax [mm] / 0.671 (S) / -0.236 (S) / -0.058 (S) / 0.005 (S) / -0.101 (S) / 0.135 (S)
Width Head [mm] / -0.111 (S) / -0.113 (S) / 0.125 (S) / 0.179 (S) / 0.141 (S) / 0.016 (S)