The Effect of Dominant Floral Resource Removal on Plant-Pollinator Interactions
Abstract
In order to understand the ecological and evolutionary significance of plant-pollinator mutualisms, it is critical to first comprehend the fluctuating and complex nature of plant- pollinator interactions. Specifically, it is important to realize how these interactions respond to changes in factors such as phenology, morphology, and abundance. To examine the effect of floral resource removal on plant-pollinator interactions, we removed a dominant floral resource, Helianthella quinquenervis (Asteraceae) from 10 plots. We paired each removal plot with a control plot and conducted paired plant- pollinator observations for 30 hours per week for 5 weeks. We then analyzed differences in pollinator visitation rates between control and removal plots using paired t-tests and linear mixed effects models. We found that overall pollinator visitation increases in response to resource availability. We also found that removal of H. quinquenervis facilitates the pollination of some plant species and competes for pollination with others.
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References (15)
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