Fig. 3.

Tick questing behavior in relation to expected host encounter probability. Curves show the summed p_q(t) values (the proportion of day t spent questing) for all state combinations on each day for a constant, increasing and decreasing probability of encountering a host while questing, as well as for when the probability of encountering a host while resting is equal to that while questing. h_q and h_r are the probabilities of encountering a host while questing and resting, respectively, held constant for all t; dh_q/dt is the rate of change in h_q over time. For dh_q/dt=0, h_q=0.001 and h_r= 0; for dh_q/dt>0, h_q=5.5E-06+5.5E-06t and h_r= 0; for dh_q/dt<0 h_q=0.001-5.5E-06_t and h_r= 0; for h_r=h_q h_q=0.001 and h_r= 0.001.