Table 3 Model results: linear models for negative (intercept) and positive emotional valence.

From: Seabird’s cry: repertoire and vocal expression of contextual valence in the little auk (Alle alle)

  

Predictors

R2/R2 adjusted

Negative valence (Intercept)

Positive valence

Max f0 (Hz)

Estimates

758.03

51.62

0.053/0.042

95% CI

731.30–784.76

5.32 to 97.92

p

 < 0.001

0.029

Mean f0 (Hz)

Estimates

719.44

32.07

0.028/0.017

95% CI

696.31–742.57

 − 7.99 to 72.12

p

 < 0.001

0.115

Range f0 (Hz)

Estimates

86.23

76.75

0.259/0.251

95% CI

70.35–102.11

49.25 to 104.26

p

 < 0.001

 < 0.001

Q50% (Hz)

Estimates

782.51

1291.38

0.149/0.139

95% CI

404.56–1160.46

636.75 to 1946.01

p

 < 0.001

 < 0.001

f0 abs slope

Estimates

1014.81

2005.70

0.566/0.561

95% CI

799.83–12,229.78

1633.35 to 2378.05

p

 < 0.001

 < 0.001

f0 Var (Hz/s)

Estimates

764.25

1687.60

0.618/0.614

95% CI

602.09–926.42

1406.73 to 1968.47

p

 < 0.001

 < 0.001

End f0 (Hz)

Estimates

699.09

 − 47.36

0.065/0.055

95% CI

677.16–721.01

 − 85.34 to − 9.38

p

 < 0.001

0.015

Sound duration (s)

Estimates

0.22

 − 0.13

0.188/0.179

95% CI

0.19–0.26

 − 0.19 to − 0.07

p

 < 0.001

 < 0.001

  1. No. of observations = 90 for all parameters.