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Table 5 Statistical comparisons between field and laboratory recordings for female sounds from Ophidion rochei

From: Sexual dimorphism of sonic apparatus and extreme intersexual variation of sounds in Ophidion rochei (Ophidiidae): first evidence of a tight relationship between morphology and sound characteristics in Ophidiidae

Variables

Methods

Results

Pulse number

M-W U test

N = 76, U = −1.27, p > 0.05

Call duration

M-W U test

N = 76, U = −1.07, p > 0.05

Pulse period

M-W U test

N = 354, U = 0.48, p > 0.05

Pulse duration

M-W U test

N = 431, U = −4.37, p < 0.05

Fundamental

M-W U test

N = 68, U = −0.37, p > 0.05

1 st harmonic

M-W U test

N = 76, U = 77, p > 0.05

2 nd harmonic

M-W U test

N = 77, U = −0.82, p < 0.05

  1. M-W U test: U test of Mann-Whitney. Significance level is determined at p < 0.05.