Table 2 Hierarchical analysis of molecular variance (AMOVA) for Zostera marina in each region: (a) Bodega Bay and Tomales Bays (b) San Francisco Bay and (c) the Virginia Coastal bays

From: Temporal stability in patterns of genetic diversity and structure of a marine foundation species (Zostera marina)

Source of variation

d.f.

Variance components

Percentage of variation

P

(a) Bodega Bay–Tomales Bay

 Among sampling dates

1

0.002

0.1

0.4

 Regions within sampling dates

5

0.09

5.84

<0.0001

 Sites within regions

11

0.09

0.4

<0.0001

 Tidal heights within Sites

12

0.05

3.1

<0.0001

 within tidal heights

808

1.4

90.6

 

(b) San Francisco Bay

 Among sampling dates

1

−0.3

−5.8

1

 Sites within sampling dates

2

0.06

9.9

<0.0001

 Within Sites

160

0.6

95.9

 

(c) Virginia Coastal Bays

 Among sampling dates

1

0.01

0.7

0.2

 Sites within sampling dates

92

1.5

99.3