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Figure 2 | Frontiers in Zoology

Figure 2

From: Reproductive responses of birds to experimental food supplementation: a meta-analysis

Figure 2

Effect of latitude on advancement of laying date. Effect of latitude of the study location on the degree of advancement of egg-laying date in response to food supplementation. Each dot represents one experiment and larger dots represent lower within-study variance, which has been used as a weighing factor in the analysis. Slope of the meta-regression = -0.024 (SE = 0.009). The regression line is bounded by 95% confidence intervals. Sample size is 41 experiments.

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