Table 1

Results of mate choice tests

acuta-c

acuta-p

carolinae

pomilia

gyrina


acuta-c

-

52

49

41

43

acuta-p

0.19

-

44

50

41

carolinae

0.13

0.23

-

38

51

pomilia

0.46*

0.01

0.45*

-

54

gyrina

0.71*

0.51*

0.51*

0.37*

-


Below the diagonal are values for the IPSI of Rolán-Alvarez and Caballero [78] testing for sexual isolation in 2 × 2 tables of mating frequency among all pairs of five Physa populations, and above the diagonal are the grand totals of the copulations upon which the statistic is based, of 60 maximum.

*Significant at the tablewide 0.05 level by Bonferroni correction.

Dillon et al. BMC Evolutionary Biology 2011 11:144   doi:10.1186/1471-2148-11-144

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