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http://www.pnas.org/content/96/21/11910
http://dx.doi.org/10.1073/pnas.96.21.11910

has been cited by the following article:

• TITLE: Geographic Flower Trait Variation of Aquilegia buergeriana Sieb. et Zucc. var. buergeriana on Mt. Norikura and the Utsukushigahara Highland, Japan

  AUTHORS: Mitsuru Hattori, Yusuke Nagano, Takao Itino

  KEYWORDS: Bumblebee, Flower Visitor Composition, Plant-Pollinator Interaction, Ranunculaceae

  JOURNAL NAME: American Journal of Plant Sciences, Vol.5 No.18, August 18, 2014

  ABSTRACT: Many studies have argued the importance of the flower-pollinator size matching for flower trait diversification. However, non-pollinator agents may also influence flower traits. In this study, we investigated the altitudinal variation of flower size (spur length, stamen length, petal blade length, corolla diameter, and sepal length) and flower visitors of Aquilegia buergeriana var. buergeriana (long-spurred columbine) in central Japan. Although this species was primarily visited by Bombus consobrinus, which has an unvarying mouthpart length, flower sizes varied greatly among populations with no correlation with altitude. These results suggest that non-pollinator and non-meteorological agents, directly and/or indirectly, impose selection pressure on flower size in A. buergeriana.