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Fig. 1. The percentage of high- and low-fat ticks that walked out of the
introduction tube after 1 (white bars), 2 (light grey bars) and 24 h (dark
grey bars). Each column shows the mean (±1 s.d.) over the four
replicates under each of four experimental conditions: (A) the wet-dry
gradient with no odour; (B) the wet-dry gradient with odour at the dry end;
(C) uniform dry conditions with odour at one end; and (D) uniform wet
conditions with odour at one end. The horizontal lines across each column show
the proportion of ticks in the connecting tunnel (lower half) and the end
boxes (upper half).