The statistical distribution of the minimum proportion of new species added to the southern region to generate a ΔAIC > 3 when comparing fitted GeoSSE with a null model in which speciation, extinction and dispersal rates between northern and southern regions are the same (A), and the percentual change in speciation rate in these cases with the minimum number of splitting cycles adding species to the southern region (B).

 
 
  Part of: Tavares GRG, Frateles LEF, Diniz-Filho JAF (2024) Effects of the interaction between Linnean and Darwinian shortfalls on diversification gradients. Frontiers of Biogeography 17: e131169. https://doi.org/10.21425/fob.17.131169