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. 2013 Jan 23;8(1):e53904. doi: 10.1371/journal.pone.0053904

Figure 1. The effect of the resource elasticity of the offspring survival parameter Inline graphic on the sex ratio (male) under environmental selection pressure.

Figure 1

When Inline graphic, the increased environmental selection pressure will increase the proportion of males, namely, Inline graphic. When Inline graphic, the increased environmental selection pressure will reduce the proportion of males, namely, Inline graphic. When Inline graphic, the increased environmental selection pressure will reduce the proportion of males, namely, Inline graphic.