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Table 1 Comparison of the measurements of body and male genitalia (aedeagus) among the three species of the A. brunneus complex

From: Thermal niche evolution and geographical range expansion in a species complex of western Mediterranean diving beetles

A) General MANOVA

     

Variables

Effect

Value

F

Sig.

Power

BL, BW (DVs); species (IVs)

Pillai trace

0.85

41.95

<0.001

1

 

Wilks’ lambda

0.16

84.12

<0.001

1

 

Hotelling trace

5.14

143.82

<0.001

1

 

Roy’s greatest root

5.13

292.13

<0.001

1

AL, AD (DVs); species (IVs)

Pillai trace

0.96

50.62

<0.001

1

 

Wilks’ lambda

0.09

125.66

<0.001

1

 

Hotelling trace

9.48

253.53

<0.001

1

 

Roy’s greatest root

9.42

513.12

<0.001

1

B) Pairwise t comparisons

     

t-test comparison

BL

BW

AL

AD

 

A. brunneus vs A. ramblae

<0.001

<0.001

<0.001

<0.001

 

A. brunneus vs A. rufulus

<0.001

<0.001

<0.001

<0.001

 

A. ramblae vs A. rufulus

<0.001

<0.001

<0.001

0.1

 

C) Mean values

     
 

BL

BW

AL

AD

 

A. brunneus

7.75

4.86

1.44

0.07

 

A. ramblae

6.67

4.30

1.15

0.01

 

A. rufulus

7.32

4.57

1.33

0.02

 
  1. BL, body length; BW, body width; AL, length of the aedeagus; AD, asymmetry of the aedeagus (see Additional file 1: Figure S1). DVs, dependent variables; IVs, independent variables.