Table 2.

Average male life span of five medfly populations in F₂, F₅, F₇, and F₉ generation. Fifty pairs of adults (replicates) were used for each population and generation, apart from F₂ generation from Guatemala where 100 replicates were used.

Population   Origin	Average life span (days ± SE)
	F2		F5		F7		F9
	Average	Maximum	Average	Maximum	Average	Maximum	Average	Maximum
Kenya	77.4 ± 6.7 a	245	71.2 ± 4.0 a	140	73.1 ± 6.7 a	213	70.6 ± 6.1 a	172
Portugal	105.6 ± 7.6 a	192	64.9 ± 7.9 b	192	50.7 ± 5.4 b	169	60.9 ± 5.1 b	194
Greece	83.1 ± 6.0 a	169	64.6 ± 4.0 b	148	69.1 ± 4.2 b	120	68.0 ± 4.9 b	155
Hawaii	48.6 ± 4.7 a	163	51.5 ± 4.0 a	109	54.2 ± 4.4 a	133	35.6 ± 3.1 b	103
Guatemala	52.1 ± 3.7 a	167	46.2 ± 5.5 a	154	52.4 ± 6.6 a	176	52.4 ± 6.8 a	161

Averages within rows followed by the same letter are not significantly differed (log-rank test; P > 0.05)