Fig. 6
From: Inferring the energy cost of resistance to parasitic infection and its link to a trade-off
Relationship among individuals from resistant (R) and susceptible (S) lines between host resistance and fat reserves observed (A) and predicted assuming zero (H0; B) or positive immune energy cost (H1; C). A Observed data (points) supports a trade-off between host resistance (approximated by maximum fecal egg count (\(FEC\))) and fat reserves (approximated by average back fat thickness (\(BFT\))). B Individual model predictions (squares) under hypothesis H0 do not lead to the observed trade-off, C contrary to predictions under H1. Solid line and grey areas represent linear regression lines with their prediction interval. Regression coefficients (β) are indicated with their level of significance. Note that the scale of x-axis is log-transformed to account for the skewed distribution of \(FEC\)