Developed with the University of California, Davis, Rutgers University, Michigan State University, and The Xerces Society, this guide provides instructions for assessing pollinator habitat quality and diversity by monitoring native bees. It was developed for conservationists, farmers, land managers, and restoration professionals to document how native bee communities change through time in pollinator habitats. It includes an introduction to bee identification, a detailed monitoring protocol, and data sheets for different habitat types.
These guidelines were developed using three years of field data comparing bee diversity and abundance with various sampling intensities. The result is a straightforward native bee sampling protocol that can be conducted with minimal training and time, yet that provides a quantitative measure of bee diversity. This protocol only requires that the user be able to differentiate native bees from other insects visiting flowers during two half-hour visits per location per year.