Bumble bee visits - Front Range

This is the number of individuals of each bumble bee species visiting each plant species as collected by Macior (1974) and Miller-Struttmann in the past (1966-1969) and present (2012-2014). Visitation data from Mt. Evans Wilderness Area and Niwot Ridge Long Term Ecological Research combined as in Macior 1974. Used in “Tube depth density function parameter estimation.r”