Figure 1: Sex ratio (proportion female) for individuals born into each study population whose sex was determined before they died. | Scientific Data

Figure 1: Sex ratio (proportion female) for individuals born into each study population whose sex was determined before they died.

From: Female and male life tables for seven wild primate species

Figure 1

The total number of sexed offspring is shown at the top of each bar. Error bars show the 95% binomial confidence intervals for the proportion female, and overlap 0.5 (dashed line) for all species. We thus justify the 50:50 sex ratio we assumed when estimating fertilities.

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