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August 13, 2026Plant Ecology & Diversity

Integrating mechanical fit and signalling in a bimodal pollination system: intraspecific variation in the floral traits of a bat- and hawkmoth-pollinated cactus

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Authors

ADArthur Domingos‐MeloMTMarco TschapkaJAJoão M. R. B. V. Aguiar

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Overview

Randomized trial examines floral traits and their roles in bat and hawkmoth pollination of a cactus, indicating how variation supports diverse pollinators.

Key Points

  • This research aims to understand how variations in floral traits affect interactions with different pollinator types in a bimodal pollination system.
  • Assessed volatile organic compounds for olfactory signalling
  • Measured spectral reflectance for visual signalling
  • Used geometric morphometrics to analyze floral shape variation
  • Flowers emit distinct compounds: benzaldehyde, (E)-β-ocimene, and sulphur compounds with variability among individuals
  • Flower shapes were diverse, with some shapes better suited to bats and others to hawkmoths
  • Larger flowers emitted more dimethyl disulphide (attractive to bats), while narrower flowers emitted more (E)-β-ocimene (attractive to hawkmoths)

Cite This Study

Domingos‐Melo et al. (2026) studied this question.

synapsesocial.com/papers/6a7d76652b0e0cff3f63fa59https://doi.org/10.1080/17550874.2026.2712911
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