Herbivory and natural selection on flowering phenology in wild sunflower, Helianthus annuus

@article{Pilson2000HerbivoryAN,
  title={Herbivory and natural selection on flowering phenology in wild sunflower, Helianthus annuus},
  author={Diana Pilson},
  journal={Oecologia},
  year={2000},
  volume={122},
  pages={72-82}
}
Plant fitness is strongly affected by flowering phenology, and there are several ecological factors that are thought to shape the distribution of flowering times. One relatively underexamined factor is the timing and intensity of attack by herbivores that feed on flowers or developing seeds. This study tests the hypothesis that herbivores that feed on developing seeds of wild sunflower, Helianthus annuus (Asteraceae), impose selection on flowering phenology. First, the study population was… CONTINUE READING

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