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Table 1 Numbers of observed pair matings and estimates of sexual isolation across experimental designs.

From: Sexual and postmating reproductive isolation between allopatric Drosophila montana populations suggest speciation potential

  

Number of matings

  

Experimental Design

Number of

replicate trials

OO

OV

VO

VV

I PSI ± 1SD

P- value

Expt. 1: No-choice

122

23

23

13

22

0.132 ± 0.114

0.252

Expt. 2: Female-choice

90

23

20

9

28

0.310 ± 0.108

0.004*

Expt. 3: Multiple-choice

6

55

34

35

55

0.223 ± 0.074

0.005*

  1. *Indicates non-random mating, i.e. significant premating isolation
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BMC Ecology and Evolution

ISSN: 2730-7182

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