Noncompetitive Gametic Isolation between Sibling Species of Cricket: A Hypothesized Link between Within-Population Incompatibility and Reproductive Isolation between Species

Table 1

Con- and heterospecific mating crosses.

			Male  population
Comparison	Female species	Female population	Conspecific mating			Heterospecific mating			Statistics
			Male	𝑁	Number of eggs laid (SD)	Male	𝑁	Number of eggs laid (SD)	Percentage of reduction	𝑡-test	𝑃onetailed
1	A. socius	AR30	TX198	14	116.1 (94.0)	TXIV6	19	1.4 (3.6)	98.8	5.19	<0.0001
2	A. socius	TX30/146	SC95/172	20	143.6 (61.6)	TXIII2	22	35.7 (53.1)	75.1	6.11	<0.0001
3	A. socius	TX198	TX30/146	9	70.6 (41.1)	TXIII2	28	13.5 (19.2)	80.9	5.74	<0.0001
4	A. sp. nov. Tex	TXIII2	TXIV6	22	142.4 (63.1)	TX198	48	58.5 (41.0)	58.9	6.66	<0.0001
5	A. sp. nov. Tex	TXIII3	TXIII2	25	89.5 (68.2)	TX30/146	17	43.4 (43.2)	51.5	2.47	0.0091
6	A. sp. nov. Tex	TXIV6	TXIII3	14	81.4 (74.8)	AR30	16	39.4 (38.0)	51.6	1.97	0.0293