Extended Data Fig. 5: Likelihood function for the model fit to hoop house data from summer-autumn 2015 graphed for the benefits and costs of resistance.
From: Self-perpetuating ecological–evolutionary dynamics in an agricultural host–parasite system
The benefit of resistance is the probability that an aphid attacked by a parasitoid kills the parasitoid egg, given by (1—b) in the fitted model. The cost of resistance is the proportional reduction in fecundity, given by (1—c). The maximum likelihood estimates of both parameters are marked by the red cross and the contour lines are at intervals of ΔlogLik = 5.99/2; 5.99 is the value of a chi-square distribution with df = 2, so the first contour corresponds to the joint approximate 95% confidence interval given by a Likelihood Ratio Test.
