Accelerated speciation in colour-polymorphic birds

There’s an interesting new study in tomorrow’s issue of nature. Andrew F. Hugall and Devi Stuart-Fox use molecular phylogenies to look at speciation rates of birds. I cite from the abstract: … we confirm, using species-level molecular phylogenies for five families of non-passerine birds, that colour polymorphism is associated with accelerated speciation rates in the…

Phylogenetics, models and evolution

I want to highlight two interesting papers coming out last week in the field of phylogenetics and evolution. The first is a paper by Nagalingum et al. who use fossil-calibrated molecular phylogenies to examine the diversification of cycads, and ancient lineage of woody plants. The cycad record dates back at least to the early Permian…