Bees are undoubtedly the most abundant pollinators of flowering plants in our environment. The service that bees and other pollinators provide allows nearly 70 percent of all flowering plants to reproduce; the fruits and seeds from insect pollinated plants account for over 30 percent of the foods and beverages that we consume. Beyond agriculture, pollinators are keystone species in most terrestrial ecosystems. Fruits and seeds derived from insect pollination are a major part of the diet of approximately 25 percent of all birds, and of mammals ranging from red-backed voles to grizzly bears. However, many of our native bee pollinators are at risk, and the status of many more is unknown. Habitat loss, alteration, and fragmentation, pesticide use, and introduced diseases all contribute to declines of bees.
The Xerces Society advocates on behalf of bees. We are working with scientists and citizen monitors to understand the status of declining bumble bees and other rare species. We also work with lawmakers on legislation that encourages pollinator-friendly habitat restoration. Xerces Society staff consult with farmers, homeowners, and land stewards to restore the landscape for the benefit of bee pollinators.