Table 2 Principal component loadings for tambourine dove responses to playback in sympatry (Experiment II).

From: Response of forest Turtur doves to conspecific and congeneric songs in sympatry and allopatry

Statistics and original response variables

PC1—approaching

PC2—vocal response

Eigenvalue

2.693

1.636

% of variance

44.879

27.275

Cumulative %

44.879

72.153

Songs during playback

− 0.24

0.85

Songs after playback

− 0.03

0.80

Flights during playback

0.95

− 0.04

Flights after playback

0.29

0.53

Closest distance (m)

− 0.89

0.03

Time < 25 m to speaker (s)

0.91

0.05

  1. Kaiser–Meier–Olkin = 0.656, Bartlett's test of sphericity χ2 = 113.173, P < 0.001.
  2. Values that make a substantial contribution to the overall variance are in bold.
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