Table 3.
AMOVA results of spatial and temporal variation in Pygospio elegans
| Temporal groups (samples grouped by year) | ||||
|---|---|---|---|---|
| Source of variation |
Sum of squares |
Variance components |
Percentage of variation |
Fixation indices (P-value) |
| Among years |
22.3 |
−0.006 |
−0.27 |
FCT = −0.003 (0.816) |
| Among populations within years |
132.2 |
0.085 |
3.61 |
FSC = 0.036 (<0.001) |
| Within samples |
3436.3 |
2.273 |
96.66 |
FST = 0.033 (<0.001) |
| Total |
3590.8 |
2.351 |
|
|
|
Geographical groups (samples grouped by population) | ||||
| Source of variation |
Sum of squares |
Variance components |
Percentage of variation |
Fixation indices (P-value) |
| Among populations |
110.9 |
0.067 |
2.85 |
FCT = 0.029 (<0.001) |
| Among temporal samples within populations |
43.6 |
0.020 |
0.85 |
FSC = 0.009 (<0.001) |
| Within samples |
3436.3 |
2.273 |
96.3 |
FST = 0.037 (<0.001) |
| Total | 3590.8 | 2.360 | ||
Temporal groups consist of samples from different populations grouped by sampling year (4 groups: 2008, 2009, 2010, 2011) and spatial groups consist of temporal samples grouped according to population (7 groups).