Edge Effects and the Population Structure of Humboldt Bay, California, Eelgrass (Zostera marina L.)

Table 2

Mean values ± standard errors of genetic diversity indices; by plot, bed position, and the entire population; values from tests of significance of genetic diversity. Significance at the level of = 0.05 is indicated by “”.

Plot	Ellstrand and Roose ()	Simpson ()
S-1	0.67 ± 0.09	0.96 ± 0.07
S-2	0.58 ± 0.06	0.92 ± 0.03
S-3	0.67 ± 0.11	0.94 ± 0.14
C-1	0.79 ± 0.09	0.96 ± 0.04
C-2	0.57 ± 0.12	0.94 ± 0.09
C-3	0.82 ± 0.08	0.96 ± 0.09
N-1	0.34 ± 0.18	0.85 ± 0.20
N-2	0.64 ± 0.11	0.92 ± 0.09
N-3	0.47 ± 0.10	0.94 ± 0.07
N-4	0.83 ± 0.07	0.97 ± 0.03
N-5	0.44 ± 0.05	0.94 ± 0.11
Edge	0.63 ± 0.06	0.75 ± 0.06
Interior	0.62 ± 0.05	0.77 ± 0.04
Population	0.62 ± 0.04	0.76 ± 0.03
Tests of significance
Among plots	0.0248	0.1126
Among bed positions	0.8603	0.7175