Importance of a pollinator-friendly habitat
Pollinators need what everyone else needs: food, shelter, water, a little bit of space to call their own, and a suitable place to raise a family. Nature usually provides all that pollinators need; we just need to stay out of the way and resist disturbing their natural environment.
To help pollinators locate and flourish in your garden:
Native Plants for Attracting Bees, Sara Tangren, Ph.D.
Plants that Attract Pollinatiors and Natural Enemies, Gerald Brust, UM Extension, IPM Vegetable Specialist
Pollinator Partnership - Selecting Plants for Pollinators
USDA, Natural Resources Conservation Service, Pollinator Friendly Plants
Xerces Society fact sheets
Xerces Society - Nests for Native Bees