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; x. E* d* l9 j r# h z7 _COVER Two Daphnia dentifera, each ~2 millimeters long. The organism at bottom left is infected with a virulent yeast parasite, causing her bright white appearance. The food web in which the host-parasite interaction is embedded determines the size of the epidemic, which, in turn, determines whether the Daphnia population becomes more resistant or more susceptible during the epidemic. See page 1636. Credit: Meghan A. Duffy
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发表于 2012-3-30 21:10
