Figure 1.

Effect of superparasitism on successful parasitism among H. defensa- protected lines ofA. pisum. Light columns are singly-parasitized aphids, dark columns superparasitized aphids (* P ≤0.01, ** P < 0.001).

Oliver et al. BMC Biology 2012 10:11   doi:10.1186/1741-7007-10-11
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