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Variation in context-dependent foraging behavior across pollinators.

Heather M Briggs1,2, Stuart Graham1,3,4, Callin M Switzer1,4

  • 1Department of Organismic and Evolutionary Biology The Arnold Arboretum of Harvard University Boston Massachusetts.

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Summary
This summary is machine-generated.

Pollinator flexibility in flower color preference impacts plant evolution. Pipevine swallowtails show adaptable choices, while skippers prefer consistent colors, influencing plant traits differently.

Keywords:
Lepidopterafloral traitsflower colorpollinatorpollinator preference

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Area of Science:

  • Ecology
  • Evolutionary Biology
  • Behavioral Ecology

Background:

  • Pollinator foraging behavior influences plant reproduction and floral trait evolution.
  • Flower color is a key trait attracting pollinators, but pollinator preferences can be flexible due to learning or environmental factors.

Purpose of the Study:

  • To investigate the flexibility in flower color preference of two native butterfly pollinator groups under natural conditions.
  • To understand how varying pollinator flexibility imposes different selection pressures on plant traits.

Main Methods:

  • Observational study of pipevine swallowtails (Battus philenor) and skippers (Hesperiidae) foraging on native Texas Phlox species (Phlox cuspidata and Phlox drummondii).
  • Analysis of distinct patterns of color preferences across different ecological contexts.

Main Results:

  • Pipevine swallowtails demonstrated highly flexible color preferences, likely using multiple floral cues.
  • Skippers exhibited consistent color preferences, primarily using flower color for foraging decisions.
  • The two pollinator groups imposed both concordant and discordant selection on flower color based on their preference flexibility.

Conclusions:

  • Variability in pollinator color preference flexibility has significant implications for plant trait evolution.
  • Studying pollinator behavior in natural field settings is crucial for understanding plant-pollinator interactions and their evolutionary consequences.