Table 1.

The estimated effect of each diet factor (level) and the covariate Age on the average (± SE) proportion of male Mexican fruit flies Anastrepha ludens that successfully inseminated females. The estimate shows how the diet affects insemination success relative to the intercept (full diet), with the t-values and P-values calculated from two tail t-tests. Age Squared shows the quadratic effect of age on insemination success (See Fig. 4).

	Estimate	t value	P
Full Diet (Intercept)	0.242 ±0.065	3.705	0.001
Diet (level)
Sugar Only	−0.123 ±0.053	−2.313	0.026
Delayed Full Diet	−0.139 ±0.053	−2.604	0.013
Covariates
Age	0.039 ±0.004	10.255	< 0.001
Age Squared	−0.001 ±0.000	−10.863	< 0.001