Fig 6.

Partial residual plots showing results from a negative binomial multiple regression model examining the effects of average snail size (A), invertebrate predator abundance (B), Ceratophyllum spp. mass (C), and snail abundance (D) on the sum of Schistosoma cercariae across sweeps per site (n = 11), and a separate negative binomial model examining the effects of Ceratophyllum spp. mass (E) and total invertebrate predator abundance (F) on Schistosoma cercariae per infected snail (n = 39; sweep nested within site as random effects). In both models, only sweeps containing infected snails were included.