0 a small creature with a soft, wet body and a round shell, that moves very slowly and often eats garden plants
1 a small animal that has a shell and moves very slowly
In resistant snails, haemocytes infiltrate the tissues surrounding young sporocysts and form multi-layered cellular encapsulations that result in larval destruction within 24-48 hours.
Therefore, we only excluded juvenile snails from the analysis to lessen the effects of the dynamics or local heterogeneity of host population on parasite prevalence.
The encystation of metacercariae in primary infected snails without the release of cercariae into the environment may also be an artefact of the experimental procedure.
The collected snails were then identified by species using an identification key [16].
Trematodes, however, not only modify their immediate habitat (snails), they also can affect the positioning of that habitat in an ecosystem.
We then focus on flukes and snails, highlighting important biological traits with regard to population structure.
They collected 18 uninfected snails, 162 with single infections (5 species), 134 with double infections (11 combinations), and 65 with triple infections (5 combinations).
Of snails examined, 12n57 % carried multiple-species infections, usually involving core species.
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