Coevolution of foraging in Bombus and nectar dispensing in Chilopsis: A last dreg theory

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Abstract

Flowers of Chilopsis linearis dispense nectar into pools and grooves. The bumblebee, Bombus sonorus, extracts pool nectar at a rate seven times faster than groove nectar. The result is the coevolution of a plant-pollinator system in which bees, while foraging efficiently, increase the number of flowers visited per calorie of nectar reward provided by the plant.

Original languageEnglish (US)
Pages (from-to)593-596
Number of pages4
JournalScience
Volume197
Issue number4303
StatePublished - 1977

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