Fig. 2.

a Proportion of individuals with external signs of pathology in infrequent and frequent crop users (GLMM₁, N = 140, variable condition: χ² = 2.198, P = 0.028; full results: Table 1); b proportion of individuals with external signs of pathology in non-lactating females, lactating females, and males (GLMM₁, N = 140, variable condition: χ² = −2.417, P = 0.016; full results: Table 1). Mean (circle) and 95% confidence (bars) are indicated. *P < 0.05 and **P < 0.01