Fig 4. Seasonal activity of D. variabilis.

Represented as density of ticks per 100m² by month. Adults are in the top panel, nymphs in the middle and larvae on the bottom. The three sites, Coal Oil Point (white), Paradise (light grey) and Sedgwick (dark grey), are represented by individual bars in each month, in that order. Black dots represent outliers; horizontal bars in box plots represent the mean, while boxes and whiskers represent quartiles; horizontal bars without box plots represent a single sample in which that species/life stage was collected in a given month; horizontal bars at ‘0’ on the y-axis represent months in which collection occurred, but no ticks were collected.