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Richard Karban, Steven Courtney, Intraspecific Host Plant Choice: Lack of Consequences for Streptanthus tortuosus (Cruciferae) and Euchloe hyantis (Lepidoptera: Pieridae), Oikos, Vol. 48, No. 3 (Mar., 1987), pp. 243-248
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Karban et al. (1987) studied this question.
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