Figure 1: Age-specific variation of (A) leukocyte concentration and counts of (B) lymphocytes, (C) neutrophils, (D) monocytes and (E) eosinophils (once accounted for capture date, year, body mass and sex effects). Dots represent the raw data with size proportional to the sample size. Dashed lines represent the best age model predictions with their standard error (dotted lines). The black and grey lines represent the between-individual and within-individual age effects with their associated standard errors (grey areas).