Michael C. Orr

The paper introduces morphOTU, a framework using phenotypic data to create operational biodiversity units, achieving diversity estimates comparable to expert identifications.

The paper studies how cavity-nesting bees use forest nesting habitats and surrounding floral resources in a subtropical forest experiment, finding that bees rely on landscape flowers and planted trees provide seasonal pollen supplements.

This study presents the first global checklist of island bees, revealing high diversity and endemism, with patterns influenced by island size, isolation, and biome.

This study investigates how sociality and nesting strategy influence the bimodal latitudinal diversity gradient in bees, finding that social and above-ground nesting traits are linked to narrow climatic niches and prevalence in tropical regions.

The paper examines how tree diversity and canopy cover affect host-parasitoid community composition and interaction networks in a subtropical tree biodiversity experiment.

This study examines global patterns and drivers of buzzing bee distribution, finding that poricidal plant richness significantly influences buzzing bee biodiversity.