Figure 3.

Relationship between average proportion of male offspring in a clutch and antibiotics treatment applied to the mother. Error bars indicate 95% confidence intervals. The dotted line depicts a 50:50 sex ratio. An asterisk indicates proportions significantly different from 0.5.

Vanthournout et al. BMC Evolutionary Biology 2011 11:15   doi:10.1186/1471-2148-11-15
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