Specimen-based ornithology
- Building a data-rich specimen collection to facilitate studies of avian biodiversity across time and space.
Systematics, biogeography, and high-altitude adaptation in Andean birds
- Comparative respiratory physiology across elevational gradients.
- Hypoxia resistance and hovering metabolism in hummingbirds.
- Host-parasite coevolution across elevational gradients.
- Phylogeny and phylogeography of Andean birds.