Diversification processes

Models of Species Diversification

My research on species diversification models.

Tempo and mode in coevolution of Agave sensu lato (Agavoideae, Asparagaceae) and its bat pollinators, Glossophaginae (Phyllostomidae)

Agave sensu lato appeared around 8 Mya. The best supported diversification model for Agavoidae shows two shifts around 8 Mya. Agave sensu lato speciation rate has been increasing towards the present. Nectarivorous bats from the Glossophaginae subfamily originated around 7 Mya. Agave and their pollinating bats share a diffuse coevolutionary history.

Thirty clues to the exceptional diversification of flowering plants

As angiosperms became one of the megadiverse groups of macroscopic eukaryotes, they forged modern ecosystems and promoted the evolution of extant terrestrial biota. Unequal distribution of species among lineages suggests that diversification, the process that ultimately determines species richness, acted differentially through angiosperm evolution.

Recent radiation and dispersal of an ancient lineage, the case of Fouquieria (Fouquiericeae, Ericales) in North American deserts

Fouqueriaceae, the family of ocotillo and bojum tree, is a monogeneric clade with 11 species. Its siter group, the plox family, Polemoniaceae, has a diversity of 400 species. In this paper, we investigate the processes that have determined the species diversity of Fouquieriaceae.

Uncovering higher-taxon diversification dynamics from clade age and species-richness data

Theory suggests that phylogenetic structure, age type (crown or stem age), and taxonomic delimitation can affect estimates of the age–richness correlation (ARC) considerably. Results from this paper warn against direct interpretations of single ARC estimates and advocate for a more integrative use of ARCs across age types and taxonomic ranks in diversification studies.