Microbial communities inhabit the stored food resources of many insect species. For bees, the dynamics and function of microbial communities in stored nectar and pollen are poorly understood. Here, we examine the structure of bacterial and fungal communities in larvae and provisions of the solitary bee species Osmia lignaria, and examine how these communities change over larval development. Preliminary analyses suggest that communities in pollen provisions are more dynamic than those in larvae.
