5. Understanding the Effects of Floral Density on Flower Visitation Rates and Species Composition of Flower Visitors. [D] . Essenberg, Carla Jean. 2012 机译:了解花卉密度对花卉访花率和花卉访客种类组成的影响。 6. Flower‐visitor communities of an arcto‐alpine plant—Global patterns in species...