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Related Experiment Video

Updated: May 29, 2026

Assessing Agrochemical Risk to Mated Honey Bee Queens

Assessing Agrochemical Risk to Mated Honey Bee Queens

Published on: March 3, 2021

Optimal concentrations in nectar feeding.

Wonjung Kim¹, Tristan Gilet, John W M Bush

¹Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

Proceedings of the National Academy of Sciences of the United States of America

|September 28, 2011

Summary

This summary is machine-generated.

Nectar feeding efficiency depends on drinking method. Optimal sugar concentration varies by technique, explaining why different feeders prefer different nectar types.

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Area of Science:

Ecology
Biomechanics
Animal Behavior

Background:

Nectarivores face predation risk, necessitating rapid feeding.
High nectar sugar concentration increases viscosity, hindering intake.
Energetic rewards are highest in the sweetest nectar.

Purpose of the Study:

To determine how nectar sugar concentration affects energy transport efficiency.
To investigate the role of drinking technique in nectar intake.
To explain variations in nectar preferences among nectarivores.

Main Methods:

Modeling nectar intake rate based on viscosity and drinking technique.
Identifying three primary nectar drinking techniques: active suction, capillary suction, and viscous dipping.
Comparing theoretical optimal sugar concentrations with laboratory data.

Main Results:

Optimal nectar sugar concentration is contingent on the drinking technique used.
Active suction feeders benefit from lower sugar concentrations compared to viscous dippers.
Capillary suction and viscous dipping show distinct optimal sugar concentrations.

Conclusions:

Drinking technique is a critical factor in optimizing nectar energy transport.
The study provides a mechanistic explanation for observed nectar preferences in different nectarivores.
Findings offer insights into the evolution of feeding strategies and floral specialization.