Fig. 3
From: Spectrophotometric analysis of lipid used to examine the phenology of the tick Ixodes ricinus
Lipid values (μg), measured by spectrophotometric analysis, in individual nymphal Ixodes ricinus collected at a single time point in May 2017 in south-west England, UK, and then starved in a cooled incubator at 15 °C and a relative humifdity of 80% for 9, 39, 92 or 239 days prior to lipid measurement. Two groups are distinguished based on their initial relative lipid values: open symbols and solid line (y = -4.78ln(x) + 40.34, R2 = 0.55, P < 0.05); and closed symbols and dashed line (y = -3.422ln(x) + 23.406, R2 = 0.44, P < 0.05)