Extended Data Fig. 2: The predictions of alternative regression methods for the yearly and quarterly models.
From: Revising the global biogeography of annual and perennial plants
A and B depict a logit transformation for the proportion of annual herbs, with A showing the yearly model and B showing the quarterly model. C and D depict the predictions of a Poisson Generalized Linear Model (GLM) with an offset (log10 of the species in an ecoregion) to obtain a rate for the proportion of annual herbs, with c showing the yearly model and D showing the quarterly model. Contour lines are every 5%.
