Figure 2 | Scientific Reports

Figure 2

From: Nitrogen and carbon stable isotope analysis sheds light on trophic competition between two syntopic land iguana species from Galápagos

Figure 2

Venn diagram illustrating explained deviance estimated by variance partitioning. The yellow circle on top represents the total deviance of the response variables, whereas the red (bottom left) and blue (right) circles represent sets of predictors (species + sex and body size + productivity + space, respectively). The total deviance of each circle is set to unity. The area of the intersection between each of the predictors’ circles (red and blue) and the response (yellow) circle represents the deviance in the response variables that is explained by each set of predictors. The intersection of all circles is the variance jointly explained by the two sets of predictors. The intersection between the red and the blue circles represents the correlation between the two sets of predictors. The area of the yellow circle not overlapped by any other circle shows the proportion of response deviance not explained by the predictors.

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