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Figure 6


Fig. 6. Mortality of earthworms after UV-B exposure. (A) M. posthuma shows significant mortality after exposure to UV-B (1000 or 1500 J m-2; two-way ANOVA, N=20, P<0.01), the effect being dose-dependent. (B) A. gracilis only shows significant mortality after exposure to UV-B (1500 J m-2; two-way ANOVA, N=20, P<0.01). In addition, the survival time of A. gracilis was shorter than that of M. posthuma after UV-B exposure (ANOVA, P<0.01).