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Table 3 Analysis of molecular variance (AMOVA) for the 8 A. uncatus populations in each sampling year.

From: Bottlenecks drive temporal and spatial genetic changes in alpine caddisfly metapopulations

Source of variation

d.f.

% of variation

P-value

Ï• - statistics

2003

    

Among valleys

3

2.64

0.057

0.052

Populations within valleys

4

2.55

< 0.001

0.026

Within populations

392

94.81

< 0.001

0.026

2004/2005

    

Among valleys

3

17.90

0.005

0.187

Populations within valleys

4

0.76

0.061

0.009

Within populations

344

81.34

< 0.001

0.179

2008

    

Among valleys

3

22.04

0.006

0.222

Populations within valleys

4

0.19

0.361

0.002

Within populations

376

77.77

< 0.001

0.220

  1. d.f. = degrees of freedom