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Table 3 Components of reproductive isolation (RIi) among conspecific populations of Daphnia pulex (px) tested in this study. Components of reproductive isolation values are calculated based on modifications of [20], with C representing intrapopulation conspecific crosses, and vary from 0 (complete gene flow) to 1 (complete isolation). Components of reproductive isolation values are shown for geographically close crosses, geographically far crosses, and the mean. 95% confidence intervals are indicated in brackets

From: The evolution of reproductive isolation in Daphnia

Reproductive barriers

Components of reproductive isolation

Mean

Geographically Close

Geographically Far

Mating-Fertilization

0.080 (± 0.085)

0.034 (± 0.110)

0.114 (± 0.133)

F1 Zygotic Mortality

0.170 (± 0.133)

0.200 (± 0.215)

0.148 (± 0.189)

F1 Hatching

0.456 (± 0.293)

0.031 (± 0.491)

0.801 (± 0.290)

F1 Survivorship

0.387 (± 0.316)

0.447 (± 0.395)

0.150 (± 2.130)