Table 2

Quartiles of the behavioral responses to advertisement calls and their loadings on the principal components
Behavior Quartiles Component loadings
25 50 75 Component 1 Component 2 Component 3
Latency to leave bottle area 114.00 214.00 673.00 0.870 0.148 0.051
Latency to box area 136.25 376.50 673.00 0.869 0.231 0.127
Duration in bottle area 483.00 652.00 813.63 0.841 0.137 0.183
Latency to speaker area 697.13 1420.50 1500.00 0.735 0.585 −0.101
Latency to box 340.00 890.50 1465.88 0.722 0.342 0.487
Duration look to speaker 18.25 33.50 61.50 0.628 −0.055 −0.614
Duration in box 14.50 221.00 407.75 −0.580 −0.441 −0.367
Duration in speaker area 0.00 63.50 218.00 −0.716 0.591 0.183
Duration in box area 115.13 185.75 299.13 −0.513 0.539 −0.291
Latency to look to speaker 22.50 144.00 295.38 −0.266 0.528 0.687
Duration look to box 0.00 13.75 21.25 −0.518 −0.148 0.480

Components 1, 2, and 3 are 47%, 15%, and 15% percent of the variation, respectively.

Behavioral variables that correlated highly (<−0.5 or >0.5) with component 2 are in bold. Frequency is measured in Herz and time is in frames (resolution of 25 frames/s).

Kessler et al.

Kessler et al. BMC Ecology 2012 12:26   doi:10.1186/1472-6785-12-26

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