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November 28, 2017; 114 (48)

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Cover image: Pictured are the flowering tree Miconia affinis and a bee. Antonio R. Castilla et al. studied pollen dispersal of M. affinis across more than 690 ha of tropical forest in central Panama. By examining pollination events and the genotypes of reproductive trees, the authors found that large-bodied bee pollinators were associated with increased seed production, whereas small-bodied bee pollinators helped facilitate long-distance gene flow among the trees and accounted for nearly half of long-distance pollen-dispersal events. The study highlights the role of functionally diverse pollinator communities in conserving plant genetic diversity. See the article by Castilla et al. on pages 12761–12766. Image courtesy of Antonio R. Castilla.

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