Area of Interest
Why do the tropics harbor so many species compared to high latitude regions
like Canada? My work seeks to determine the key factors driving the buildup of
biodiversity in tropical and temperate regions.
- latitudinal diversity gradient
We use comparative phylogenetic, morphological and experimental
approaches to address patterns of biodiversity in New World birds.
- Investigate how rates of speciation, extinction and morphological and behavioral evolution vary across latitudinal gradients.
- Compare dynamics of hybrid zones in Amazonia and North America.
- Seek to understand the role of Plio-Pleistocene climate changes and
geological events in promoting patterns of diversity and the latitudinal diversity gradient.