Document Detail

The effects of nectar-nicotine on colony fitness of caged honeybees.
MedLine Citation:
PMID:  16525869     Owner:  NLM     Status:  MEDLINE    
Nectar of many bee flowers contains secondary compounds, which are considered toxic for honeybees on repeated exposure. Although many anecdotal reports indicate the toxicity of secondary compounds to bees, only a few studies have tested the extent of toxicity at different honeybee ages, especially at the larval stages. Honeybees encounter nicotine at trace concentrations (between 0.1 and 5 ppm) in floral nectar of a few Nicotiana spp. and in Tilia cordata. Adult honeybee workers tolerate these nicotine concentrations. In controlled nonchoice feeding experiments with caged bees, we investigated the effect of nicotine on hatching success and larval and forager survival. Naturally occurring concentrations of nectar-nicotine did not affect hatching success of larvae or their survival, but the latter was negatively affected by higher concentrations of nicotine (50 ppm). Concentrations of nicotine in fresh honey samples from the hives were 90% lower than the concentrations in the offered experimental sucrose solutions. Our results indicate that honeybees can cope with naturally occurring concentrations of nicotine, without notable mortality, even when consumed in large quantities for more than 3 weeks.
Natarajan Singaravelan; Moshe Inbar; Gidi Ne'eman; Melanie Distl; Michael Wink; Ido Izhaki
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-02-26
Journal Detail:
Title:  Journal of chemical ecology     Volume:  32     ISSN:  0098-0331     ISO Abbreviation:  J. Chem. Ecol.     Publication Date:  2006 Jan 
Date Detail:
Created Date:  2006-03-09     Completed Date:  2006-06-13     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7505563     Medline TA:  J Chem Ecol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  49-59     Citation Subset:  IM    
Department of Biology, University of Haifa-Oranim, Tivon 36006, Israel.
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MeSH Terms
Bees / growth & development,  physiology*
Feeding Behavior
Reg. No./Substance:

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