A. J. Helmstetter

This study synthesizes data from 152 studies on angiosperm diversification using SSE models, finding that trait effects vary across clades and dataset properties influence results.

The paper evaluates diversification rate estimation methods using simulations, introduces 'pulled rates', and discusses the reliability of macroevolutionary models.

This study investigates the phylogenetic relationships and historical biogeography of South American vegetable ivory palms using genomic data and fossil calibration, finding that P. seemannii and P. schottii are not closely related to P. macrocarpa.

This study shows that Silene uniflora rapidly adapted to zinc-contaminated soils without gene flow, revealing complex genetic responses to anthropogenic pollution.

This study uses genetic data to show that many rare Madagascan plant species have experienced recent population declines, suggesting extinction risk can be predicted from demographic patterns, even with limited data.

This study uses phylogenomic analysis to clarify the relationships within the African palm genus Raphia, finding five clades and supporting morphological classification while highlighting unresolved species boundaries.

The paper uses phylogeographic analysis of 351 nuclear markers to show that a North-South genetic divide in Annickia affinis is due to a single colonization event across a climatic inversion.

The study shows hatchling size variation is a main determinant of adult size variation in annual killifish, supporting the time constraint hypothesis.

This study shows hybridization is common in Amazonian trees, with evidence of introgression across multiple lineages and time scales, challenging the view that hybridization is rare in the region.

The paper assesses genetic diversity and domestication history of Turkish hazelnuts using ddRAD sequencing, finding limited diversity reduction and multiple admixture events between wild and domesticated populations.

This study uses targeted nuclear gene sequencing to reconstruct phylogenetic relationships in Annonaceae, confirming previous chloroplast studies and identifying new relationships and a new tribe.

The paper investigates how trait evolution and historical biogeography influence species assemblages in annual killifish, finding that size variation originated in one area and spread to others with varying ecological impacts.