Suivi d’abeilles domestiques et de pollinisateurs indigènes lors des semis de cultures traitées aux néonicotinoïdes

Authors: Samson-Robert, Olivier
Advisor: Fournier, Valérie; Labrie, Geneviève
Abstract: Neonicotinoid insecticides, which are ubiquitous in agriculture, are one of the main factors involved in the recent decline of honey bees’ and native pollinators’ populations. In this study, we evaluated the impact of neonicotinoid seed treatments on honey bee mortality levels, bumble bees intoxication (through monitoring of acetylcholinesterase (AChE) as a biomarker) and water contamination. The results show that honey bee mortality level is quadrupled and that AChE levels of bumble bees are higher when living and foraging in a pesticide-treated corn-dominated environment. The project also confirmed that puddles of water at the surface of corn fields are a new potential route of intoxication for bees. These results demonstrate the harmful impact of the widespread use of neonicotinoid seed treatments and highlight the key role they play in the current pollinators’ decline.
Document Type: Mémoire de maîtrise
Issue Date: 2014
Open Access Date: 23 April 2018
Permalink: http://hdl.handle.net/20.500.11794/26492
Grantor: Université Laval
Collection:Thèses et mémoires

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