Fig. 2.

Relationships used to evaluate the aforementioned Hypotheses in Fig. 1. Hypothesis I: effects of predator diversity (Shannon diversity) on (a) prey (heterotrophic bacteria) biomass and (b) predator-prey biomass ratio (PPBR). Hypothesis II: effects of prey diversity on (c) predator biomass and (d) PPBR. Hypothesis III: (e) predator and prey diversity relationship. Note in a–d, the Y-axis is in log-scale with the base of 10. The circles and triangles represent the samples collected in the summer and spring seasons, respectively. The line indicates the best-fit linear regression line with significant (P < 0.05) relationship based on GLMM analysis with season as the random effect