Fig 4
From: Spectrophotometric analysis of lipid used to examine the phenology of the tick Ixodes ricinus
The mean lipid values (± SE confidence intervals) for groups of nymphal Ixodes ricinus ticks, measured by spectrophotometric analysis. Ticks were collected by blanket dragging each month in south-west England, UK, during 2015 and 2016. Months 1–12: January-December. Lower case letters above x-axis denote statistically homogeneous groups (P < 0.05) as determined by Tukey’s multiple comparisons post-hoc tests