Fig. 5: Assessing publication bias.
From: A systematic review and meta-analysis of unimodal and multimodal predation risk assessment in birds
A Funnel plot. B Egger regression to assess funnel asymmetry. 95% confidence intervals are depicted by the two outer dotted lines. C Regression to test time lag effect of published effect sizes, with 95% confidence intervals depicted by the two inner dotted lines and 95% prediction intervals depicted by the two outer dotted lines (these are non-linear as the predictions are derived from multi-moderator models). Total number of estimates (k) is given at the top of each plot, with the number of studies contributing estimates in parentheses.
