Fig. 2.

Graphical representation of the proportion of Daphnia considered viable hosts, i.e. which survived until at least 9 days post-exposure (Metschnikowia) or 11 days post-exposure (Ordospora), allowing either parasite to produce detectable levels of infection (i.e. presence of spores in crushed individuals). Host viability was compared between single and co-exposure treatments, to answer the following: (A) How does Metschnikowia respond to later arrival of Ordospora? (B) How does Metschnikowia respond to prior infection by Ordospora? (C) How does Ordospora respond to later arrival of Metschnikowia? (D) How does Ordospora respond to prior infection by Metschnikowia? Individuals which did not survive until at least both inoculation events had occurred were excluded from these calculations. Error bars depict the standard error of the mean (calculated from binary values assigned to individual Daphnia: 0 = early death, 1 = viable host). Significance levels are provided by logistic regression performed across single and co-exposure treatments with shared timing of infection: *P ⩽ 0.05.