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Table 2 Statistical comparisons between field and laboratory recordings for male multiple-pulsed sounds from O. 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

t-test

N = 49, t(47) = 3.57, p < 0.05

Alternation start

t-test

N = 46, t(44) = −1.4, p > 0.05

Call duration

t-test

N = 49, t(47) = −1.15, p > 0.05

Short pulse period

M-W U test

N = 564, z = −14.98, p < 0.05

Long pulse period

M-W U test

N = 555, z = −15.19, p < 0.05

Pulse duration

M-W U test

N = 1742, z = −16.74, p < 0.05

1 st main frequency

M-W U test

N = 46, z = −2.52, p < 0.05

2 nd main frequency

M-W U test

N = 47, z = −2.67, p < 0.05

  1. T-test: the t-test of Student. M-W U test: U test of Mann–Whitney. Significance level is determined at p < 0.05.
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Frontiers in Zoology

ISSN: 1742-9994