Figure 2.
Tolerance to ranavirus exposure of naive larvae reared in road salt-treated water in the laboratory. Salinity exposures reflect the average (1500 µS cm−1) and maximum (3000 µS cm−1) conductivities of roadside ponds surveyed in this region [24]. We standardized ranavirus exposures to the range of susceptible developmental stages for this species (Gosner 30–38; [52]). Points represent the proportion dead with a positive ranavirus titre (n = 20 per dose/group were exposed), and lines and 95% confidence envelope (shaded area) reflect the best-fit logistic model.