Peter Andrew Hosner

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My research program centers on the geography of avian diversification. I study the relative roles of different types of geographic barriers to understand how barrier permeability and periodicity affect the mode and tempo of diversification, and how landscape features and connectivity shape colonization patterns. To study the impact of these geographic features on avian populations, I infer their evolutionary relationships with genomic data collected from high- quality specimens. I work at multiple scales, from higher-level phylogenetics down to fine-scale phylogeography of species complexes. I combine phylogenetics and phylogeography with complementary data streams such as ancestral range/character reconstructions, distributional modeling, and assessments of plumage and vocalizations in a comparative framework. I owe these broad interests to a life-long reverence for natural history.