| social selection parapatry in afrotropical sunbirds. | the extent of range overlap of incipient and recent species depends on the type and magnitude of phenotypic divergence that separates them, and the consequences of phenotypic divergence on their interactions. signal divergence by social selection likely initiates many speciation events, but may yield niche-conserved lineages predisposed to limit each others' ranges via ecological competition. here, we examine this neglected aspect of social selection speciation theory in relation to the discover ... | 2016 | 27167078 |