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Pollinator assemblage composition predicts trait divergence in a pollination-generalized plant.

Felipe Torres-Vanegas1, Vanda Temesvári1, Yedra García1

  • 1Department of Biology, Division of Biodiversity and Evolution, Lund University, Lund, Sweden.

Evolution; International Journal of Organic Evolution
|February 27, 2026
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Summary
This summary is machine-generated.

Geographic variation in pollinator communities influences the evolution of plant pollination traits, even in generalized species. This study shows local pollinator differences drive trait divergence in Viscaria vulgaris.

Keywords:
Viscaria vulgarisadaptationgeographic selection mosaicphenotypic selectionpollinationqualitative and quantitative pollinator shifts

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Area of Science:

  • Ecology
  • Evolutionary Biology
  • Botany

Background:

  • Pollinator-plant interactions are key drivers of angiosperm evolution.
  • The relationship between geographic variation in pollinators and pollination trait divergence in generalized plants is not well understood.

Purpose of the Study:

  • To investigate how geographic variation in pollinator assemblages affects pollination trait divergence in the generalized plant Viscaria vulgaris.
  • To test the hypothesis that local pollinator community structure drives plant trait evolution.

Main Methods:

  • Characterized pollinator assemblages interacting with Viscaria vulgaris across southern Sweden.
  • Used statistical dimension reduction to analyze geographic variation in pollinator assemblages.
  • Assessed the association between pollination traits and the main axis of geographic variation in pollinators.

Main Results:

  • Documented a functionally diverse range of pollinators for V. vulgaris.
  • Observed geographic variation in the relative abundance of frequent pollinator functional groups, creating a mosaic of local pollinator assemblages.
  • Demonstrated that geographic variation in local pollinator assemblages predicts the divergence of pollination traits in V. vulgaris.

Conclusions:

  • Geographic variation in pollinator assemblages can drive pollination trait divergence even in generalized plant species.
  • Generalized plant-pollinator interactions do not prevent trait divergence.
  • Divergence may optimize pollination by the collective local pollinator assemblage, not a single dominant pollinator.