Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/69888
標題: Abnormal Foraging Behavior Induced by Sublethal Dosage of Imidacloprid in the Honey Bee (Hymenoptera: Apidae)
作者: Yang, E.C.
Chuang, Y.C.
Chen, Y.L.
Chang, L.H.
關鍵字: sublethal dosage
imidacloprid
honey bee
foraging behavior
apis-mellifera l.
learning performances
pesticides
toxicity
deltamethrin
metabolites
sunflowers
brain
期刊/報告no:: Journal of Economic Entomology, Volume 101, Issue 6, Page(s) 1743-1748.
摘要: Although Sublethal dosages of insecticide to nontarget insects have never been an important issue, they are attracting more and more attention lately. It has been demonstrated that low dosages of the neonicotinoid insecticide imidacloprid may affect honey bee, Apis mellifiera L., behavior. In this article, the foraging behavior of the honey bee workers was investigated to show the effects of imidacloprid. By measuring the time interval between two visits at the same feeding site, we found that the normal foraging interval of honey bee workers was within 300 s. However, these honey bee workers delayed their return visit for >300 s when they were treated orally with sugar water containing imidacloprid. This time delay in their return visit is concentration-dependent, and the lowest effective concentration was found to be 50 mu g/liter. When bees were treated with in imidacloprid concentration higher than 1,200 mu g/liter, they showed abnormalities in revisiting the feeding site. Some of them went missing, and some were present again at the feeding site the next day, Returning bees also showed delay in their return trips. Our results demonstrated that sublethal dosages of imidacloprid were able to affect foraging behavior of honey bees.
URI: http://hdl.handle.net/11455/69888
ISSN: 0022-0493
文章連結: http://dx.doi.org/10.1603/0022-0493-101.6.1743
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