Table 1.

Direct and correlated fitness responses after 150 days of culture^a

Response type and treatment group	Conditionb	Wc (mean ± SEM)	P value for fitness comparison between:
			Evolved vs ancestord	Direct vs correlatede	Different populationsf
Direct fitness responses
A		1.162 ± 0.03690	0.001		0.002
B		1.114 ± 0.00991	<0.001		0.058
C		1.351 ± 0.03153	<0.001		0.029
Correlated fitness responses
A	Cl	1.059 ± 0.02983		<0.05
A	St	1.073 ± 0.01337		<0.05
B	Sh	1.129 ± 0.02232		0.696
B	St	1.279 ± 0.02432		<0.001
C	Sh	1.103 ± 0.00919		<0.001
C	Cl	0.978 ± 0.01332		<0.001

^aFitness results were obtained after competition between the selected isolates and the ancestor. Significant differences (P < 0.05) are shown in boldface.

^bCorrelated fitness competitions occurred under the following conditions: Sh, shaking; Cl, cycling; St, static.

^cW represents the mean of all the competitions for each treatment.

^dBased on two-tailed t test. Ancestor with a null hypothetical value = 1.0.

^eComparison between correlated and direct fitness responses.

^fBased on one-tailed t test performed on replica populations belonging to the same treatment group (for treatment C, a one-way ANOVA was employed).