Comparative sucrose responsiveness in Apis mellifera and A. cerana foragers

PLoS One. 2013 Oct 23;8(10):e79026. doi: 10.1371/journal.pone.0079026. eCollection 2013.

Abstract

In the European honey bee, Apis mellifera, pollen foragers have a higher sucrose responsiveness than nectar foragers when tested using a proboscis extension response (PER) assay. In addition, Africanized honey bees have a higher sucrose responsiveness than European honey bees. Based on the biology of the Eastern honey bee, A. cerana, we hypothesized that A. cerana should also have a higher responsiveness to sucrose than A. mellifera. To test this hypothesis, we compared the sucrose thresholds of pollen foragers and nectar foragers in both A. cerana and A. mellifera in Fujian Province, China. Pollen foragers were more responsive to sucrose than nectar foragers in both species, consistent with previous studies. However, contrary to our hypothesis, A. mellifera was more responsive than A. cerana. We also demonstrated that this higher sucrose responsiveness in A. mellifera was not due to differences in the colony environment by co-fostering two species of bees in the same mixed-species colonies. Because A. mellifera foragers were more responsive to sucrose, we predicted that their nectar foragers should bring in less concentrated nectar compared to that of A. cerana. However, we found no differences between the two species. We conclude that A. cerana shows a different pattern in sucrose responsiveness from that of Africanized bees. There may be other mechanisms that enable A. cerana to perform well in areas with sparse nectar resources.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adaptation, Biological / physiology
  • Analysis of Variance
  • Animals
  • Bees / physiology*
  • China
  • Feeding Behavior / drug effects
  • Feeding Behavior / physiology*
  • Plant Nectar
  • Pollen
  • Species Specificity
  • Sucrose / pharmacology*

Substances

  • Plant Nectar
  • Sucrose

Grants and funding

The authors are thankful for the support of Honey Bee Biology Observation Station (Fujian) of Agriculture Ministry of China. This work was funded by grants from Fujian Provincial Department of Science and Technology (2011J05043 to WY), Fujian Agriculture and Forestry University (to XM) and the Earmarked Fund for Modern Agro-Industry Technology Research System (CARS-45-KXJ19). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.