Claim · model-written summary
W. hortensis flowers persisted with unchanged color and reduced nectar only when pollinators were scarce.
- Taxon
- W . hortensise1
- Interactor
- pollinatorse0pollinator
- Outcome
- same colour and reduced amounts of nectare0
- Qualifier
- only when pollinators were scarcee0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Verbatim
e0“They persisted for a few more days with the same colour and reduced amounts of nectar, but did so only when pollinators were scarce”
e1“Flowers of W . hortensis”
Title
Miki F. Suzuki; Kazuharu Ohashi Functional Ecology 2013. doi:10.1111/1365-2435.12209
Other claims from this paper (11)
- Observation W. coraeensis flowers secreted nectar for 2–3 days while white, then persisted red purple with reduced nectar.
- Observation W. hortensis flowers secreted nectar initially for 2–3 days.
- Observation Only W. hortensis suffered pollination difficulty at the study site.
- Observation Both Weigela species retained flowers for 4–5 days.
- Observation Bees strongly preferred to visit W. coraeensis.
- Observation W. coraeensis had a greater proportion of seed set than W. hortensis.
- Observation W. coraeensis had higher nectar productivity than W. hortensis.
- Mechanism W. coraeensis alone offered bees a color cue to choose rewarding flowers and improve nectar intake rates.
- Mechanism Bees apparently learned where to return in response to resource exploitability differences.
- Mechanism The authors conclude that floral color change attracts bee-like pollinators that return to more easily exploitable plants.
- Mechanism When conspicuousness and exploitability benefits do not outweigh costs, W. hortensis-style retention of same-color rewardless flowers with flexible longevity may save costs.