Table 3 Output from GLMMs testing the effects of song learning on the likelihood of male mounting during a mating trial, independent of prenatal playback treatment. Each model used mounting (yes/no, per trial) as the dependent variable, and one measure of song copying accuracy (n = 148 trials from 31 males) or song complexity (n = 188 trials from 39 males) as the fixed effect. Female movement (normal/abnormal) was also included as a fixed effect, with male identity and female identity included as random effects unless their parameter estimate was nil.

From: Prenatal exposure to incubation calls affects song learning in the zebra finch

  Estimate SE Z-value P-value
Measure of song copying accuracy
copied syllables (n) −0.36 0.27 −1.37 0.172
dropped syllables (n) −0.12 0.22 −0.57 0.566
non-paternal syllables (n) 0.50 0.25 1.99 0.047
broad-scale similarity 0.22 0.21 1.07 0.286
fine-scale similarity 0.08 0.20 0.41 0.684
sequential similarity −0.36 0.21 −1.72 0.086
Measure of song complexity
total syllable types (n) 0.30 0.18 1.69 0.091