EE Environmental Entomology is now published by Oxford University Press. It can be accessed from the locations listed below.

Bumble Bee (Hymenoptera: Apidae) Foraging Distance and Colony Density Associated With a Late-Season Mass Flowering Crop
Sujaya Rao
Environmental Entomology(2012),41(4):905
http://dx.doi.org/10.1603/EN11316

Oxford University Press BioOne