Anagenesis, Cladogenesis, and Speciation on Islands

Anagenesis and cladogenesis are fundamental evolutionary concepts, but are increasingly being adopted as speciation models in the field of island biogeography. Here, we review the origin of the terms ‘anagenetic’ and ‘cladogenetic’ speciation, critique their utility, and finally suggest alternative terminology that better describes the geographical relationships of insular sister species.B.C.E. was supported by Spanish grant CGL2013-42589-P awarded by the MINECO and co-financed by FEDER, and Spanish grant 1153/2014 awarded by the Organismo Autónomo Parques Nacionales of the MAGRAMA. J.P. was funded by the Spanish ‘Ministerio de Economía y Competitividad’ through the Juan de la Cierva Program – Incorporation (IJCI-2014-19691) and Marie Sklodowska-Curie Global Fellowship (Grant agreement No. 747238)