Abstract:Landscape structure and agricultural intensification are weak predictors of host range and parasitism rate of cereal aphids Abstract Proportions of specialist and generalist primary parasitoids have been described by the resource breadth and the trade-off hypothesis. These alternative hypotheses predict either decreased or increased, respectively, parasitism rate of shared aphid species by specialist parasitoids. We tested both hypotheses and the confounding effects of landscape structure and agricultural inte… Show more
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