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Figure 2


Fig. 2. Jumping behavior of Amynthas gracilis exposed to UV-A or UV-B expressed as the percentage of individuals showing this behavior. When the earthworms were exposed to less than 1000 J m-2 of either UV-A or UV-B, no individuals jumped. But after exposure to higher doses, abnormal jumping behavior appeared. As the dosages increased, the cumulative percentage of jump individuals was significant increased ({chi}2 test, N=30, P<0.001).