The evolution of reproductive isolation in a simultaneous hermaphrodite, the freshwater snail Physa

Table 2 Results of no-choice experiments

		acuta-c	acuta-p	carolinae	pomilia
1st ovi.	acuta-c	8 (5-10) •
	acuta-p	4 (3-5)	3 (3-4) • 8 (7-9)	8 (7-9)	8* (5-12)
	carolinae	7 (7-10)		8 (7-8) • 8 (7-12)
	pomilia	9 (7-16)		Selfing only	7 (7-11) • 6 (4-7)
Par rep.	acuta-c	10/10 •
	acuta-p	10/10	10/10 • 7/10	10/10	9/10
	carolinae	9/9		8/8 • 10/10
	pomilia	8/9		Selfing only	9/9 • 10/10
Par fec.	acuta-c	67 (17-104) •
	acuta-p	42 (21-70)	55 (26-81) • 33 (19-41)	77 (28-163)	60 (9-115)
	carolinae	55* (18-81)		75 (19-105) • 117 (82-153)
	pomilia	25 (3-96)		Selfing only	57 (19-68) • 81 (50-121)
F1 viab.	acuta-c	.62 (.45-.86) •
	acuta-p	.83 (.68-.93)	.87 (.66-.95) • .76 (.51-.95)	.54 (.31-.65)	.71^M (.58-.83)
	carolinae	.73 (.49-.99)		.81 (.66-.91) • .36 (.24-.55)
	pomilia	.67^M (0.0-.91)		Selfing only	.56 (.33-.86) • .67 (.56-.83)

Modal week of first oviposition, maximum parental reproduction (as a fraction of survivorship), median weekly mean parental fecundity, and median weekly mean F1 viability (ranges) in the subsets of experiments ultimately yielding hybrid F1 progeny.
Results shown to the left and below the dotted diagonals (experiments and their corresponding controls) are from 2001 or 2002. Results from 2003 are shown to the right and above the diagonal.
*Delays or reductions significant at the tablewide 0.05 level by Bonferroni correction.
^M Mixtures of selfed and outcross progeny.

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