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Table 2.

Results of two-way ANOVA for all strikes comparing levels of variation due to prey type and individual predator

VariablePrey d.f.=2,4Individual d.f.=4,4Prey × individual d.f.=8,75
Displacement (deg.)    
    Gape angle 358.20** 0.60 1.03 
    Hyoid depression 61.11** 3.54 1.36 
    Cranial elevation 40.44** 1.25 0.85 
    Opercular expansion 29.54** 6.26** 1.61 
    Jaw rotation 305.78** 0.60 1.03 
    Prey distance (cm) 42.38** 2.18 1.93 
Timing (ms)    
    Time to gape angle 106.08** 3.97 1.85 
    Time to hyoid depression 121.66** 4.75* 3.05* 
    Time to cranial elevation 114.27** 1.86 2.50 
    Time to opercular expansion 121.87** 2.97 3.36* 
    Time to jaw rotation 112.36** 4.04 2.19 
    Total gape cycle time 52.22** 1.38 0.78 
VariablePrey d.f.=2,4Individual d.f.=4,4Prey × individual d.f.=8,75
Displacement (deg.)    
    Gape angle 358.20** 0.60 1.03 
    Hyoid depression 61.11** 3.54 1.36 
    Cranial elevation 40.44** 1.25 0.85 
    Opercular expansion 29.54** 6.26** 1.61 
    Jaw rotation 305.78** 0.60 1.03 
    Prey distance (cm) 42.38** 2.18 1.93 
Timing (ms)    
    Time to gape angle 106.08** 3.97 1.85 
    Time to hyoid depression 121.66** 4.75* 3.05* 
    Time to cranial elevation 114.27** 1.86 2.50 
    Time to opercular expansion 121.87** 2.97 3.36* 
    Time to jaw rotation 112.36** 4.04 2.19 
    Total gape cycle time 52.22** 1.38 0.78 

Table entries are F-ratios.

*

Significant at sequential Bonferroni-corrected value of P<0.05.

**

Significant at sequential Bonferroni corrected value of P<0.001.

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