Fig. 4: Increasing the proportion of the maximum adult lifespan sampled increased the likelihood of finding senescence.
From: Meta-analysis shows no consistent evidence for senescence in ejaculate traits across animals
Effect of proportion of maximum adult lifespan sampled (x-axis) on the effect size i.e. Fisher’s z transformed r (y-axis) across the entire dataset (A), and broken down for domestic (B), laboratory (C), wild (D), and captive animals (E). The size of each data point represents the precision of the effect size (1/SE). The dark line with shaded bars represents the overall effect of lifespan sampled on effect sizes and its 95% CI, respectively, and the black line shows the mean regression line. Negative values depict senescence in ejaculate traits with advancing age, while positive values show improvement in ejaculate traits with advancing male age. Sample sizes reported as: k = number of effect sizes (in brackets: number of studies). Source data is provided as a source data file.
