Figure 4.

Degree of shell repair (mean ± SE) in uninfected snails, individuals harboring a single infection (Philophthalmus sp. or Maritrema novaezealandense) and snails infected by both parasite species (double infection [Philophthalmus sp. and M. novaezealandense]) shown over time since shell damage. Note that snails in the two and four, six and eight, and ten and twelve weeks postshell damage groups have been pooled in the figure, but not in the analyses presented in the text, to increase sample sizes and facilitate qualitative comparisons. Numbers above bars indicate sample sizes; drilled and patched snails are combined in the figure here as no difference in snail repair was found between these two treatments