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Volatile organic compounds (VOCs) are emitted by every part of a plant and are believed to work as possible olfactory signals, drawing in pollinators and antagonists. This study was designed to address whether VOCs served as a signal to pollinators, indicating the size of the nectar reward. This part of the study focused on two populations of Ipomopsis aggregata plants. Another part of the 2019 study measured floral VOCs for six species in a dry meadow also studied in 2017 and 2018 to address the consistency of emission of VOCs across three years differing in environmental conditions including date of snowmelt. The total emission of volatiles by flowers of I. aggregata did not correlate detectably with the production of nectar. In the dry meadow experiment, the composition of volatile emissions changed significantly across the three years, particularly for Galium boreale in the late snowmelt year of 2019.
Knowledge graph centered on Volatile organic compounds as signals for pollinat with 58 nodes and 74 connections. Top connected: Rocky Mountain Biological Laboratory, Gothic, Two-form Bumble Bee, Bumble Bees, Yellow-fronted Bumble Bee.
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