Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Distribution of all (dyed + undyed) pollen on bumble bees as a percentage in each sector of total pollen grains. (A) Pedicularis densispica, n = 16 bumble-bees, 73 354 pollen grains. (B) Pedicularis tricolor, n = 23 bumble-bees, 62 069 pollen grains. (C) Pedicularis dichotoma, n = 15 bumble-bees, 37 508 pollen grains.
