Results of the (logistic) regression model of the ln-transformed odds of fertilization for female Leptinotarsa decemlineata (Colorado potato beetles)†.

†Parameter estimates ‘β’ and their standard error ‘s.e.’ were computed using the ‘lmer’ function in R. Confidence intervals ‘CI’ of parameter estimates were computed as β ± zα,2 · se(β), the ‘odds ratio’, that is, the ratio of the odds of fertilization at two treatment values that differ exactly one unit, was computed as exp(β), and the ‘z-values’ were computed as β/se(β), all conform Collett [38]. Effects that are substantial relative to their standard error are presented in bold to guide the eye. Random effects (σ2) of the block factors experimental day (nested within TD) and cage were 0.13 and 0.00, respectively.