Suivi d’abeilles domestiques et de pollinisateurs indigènes lors des semis de cultures traitées aux néonicotinoïdes
|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|
|Open Access Date:||23 April 2018|
|Collection:||Thèses et mémoires|
All documents in CorpusUL are protected by Copyright Act of Canada.