K. G. Dexter

Rampant Reticulation in a Rapid Radiation of Tropical Trees - Insights from Inga (Fabaceae)

This study investigates hybridization in the genus Inga, finding widespread introgression and its potential role in adaptation through chemical defense loci during the radiation of Amazonian trees.

Range restricted old and young lineages show the southern Western Ghats to be both museum and cradle of diversity for woody plants

The paper examines the southern Western Ghats as both a museum and cradle of woody plant evolutionary diversity using phylogenetic and distribution analyses.

Precipitation is the main axis of tropical phylogenetic turnover across space and time

The paper shows that precipitation gradients drive phylogenetic turnover in Mimosoid legumes across tropical regions, with 95% of speciation occurring within a precipitation niche.

Diversity and Divergence: Evolution of defense chemistry in the tropical tree genus Inga

The paper characterizes chemical diversity in Inga species and shows that closely related species have divergent defense profiles, suggesting divergent adaptation for avoiding shared natural enemies.

Evolutionary heritage shapes tree distributions along an Amazon-to-Andes elevation gradient

The paper examines how evolutionary heritage influences tree distributions along an elevation gradient in the Amazon-to-Andes region, finding phylogenetic clustering and sensitivity to environmental changes.

Signals of recent tropical radiations in Cunoniaceae, an iconic family for understanding Southern Hemisphere biogeography

This study investigates the biogeographic history of Cunoniaceae, finding recent tropical radiations and higher diversification rates in the tropics compared to extratropics.