Mortality during and survival following diet treatments
To investigate the effects of diet and infection cue treatments on survival throughout the experiment, we assessed mortality and survival at three points: mortality during the 3-week feeding period, mortality during the 2-day calling trial, and survival following calling effort trials. To assess mortality during both feeding trials, the full model included diet type, the average amount of food eaten, and the interaction between the two as main effects and pronotum size as a covariate. The full models for mortality during the calling trial and survival following included diet type, infection cue, and the interaction between the two as main effects and average amount of diet eaten and pronotum width as covariates. Mortality during both feeding trials and calling effort trials was assessed using generalized a linear model with a quasibinomial distribution (to accommodate overdispersion of the data) and survival following calling trials was analyzed using a Cox proportional hazards regression model.