How does insect visitation trigger floral colour change?

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

1. Visitation by the key pollinator, Bombus terrestris , was implicated in inducible flower colour change in Lupinus pilosus . Behaviour at the flower and rate of visitation by these bumble bees had specific effects; exclusion of this flower visitor led to retarded onset, and reduced rate, of colour change.

2. The foraging behaviour of B. terrestris was influenced by floral colour change in L. pilosus . Choice of pre-change flowers was greater than random in relation to the proportion of colour phases available within the plant population.

3. Levels of floral manipulation that mimicked the flower handling characteristics of visiting bumble bees confirmed that triggering of the pollen release mechanism is necessary for the instigation of colour change.

4. Moreover, this study suggests that, in L. pilosus , an aspect of pollination (pollen deposition by bees and/or subsequent pollen tube growth within the style) is linked with colour change and may act as the trigger for such change.

Original languageEnglish
Pages (from-to)467-474
Number of pages8
JournalEcological Entomology
Volume28
Issue number4
DOIs
Publication statusPublished - Aug 2003

Keywords

  • Bombus terrestris
  • colour change
  • foraging behaviour
  • Lupinus pilosus
  • pollen deposition
  • REPRODUCTIVE SUCCESS
  • POLLINATION ECOLOGY
  • FLOWERS
  • FABACEAE
  • LEGUMINOSAE
  • ATTRACTION
  • EVOLUTION
  • ETHYLENE
  • PLANTS
  • CUES

Fingerprint

Dive into the research topics of 'How does insect visitation trigger floral colour change?'. Together they form a unique fingerprint.

Cite this